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Commit 731b6321 authored by Tim Cooper's avatar Tim Cooper Committed by Ian Lance Taylor
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crypto, hash: implement BinaryMarshaler, BinaryUnmarshaler in hash implementations 

The marshal method allows the hash's internal state to be serialized and
unmarshaled at a later time, without having the re-write the entire stream
of data that was already written to the hash.

Fixes #20573

Change-Id: I40bbb84702ac4b7c5662f99bf943cdf4081203e5
Reviewed-on: https://go-review.googlesource.com/66710Reviewed-by: 's avatarJoe Tsai <thebrokentoaster@gmail.com>
Reviewed-by: 's avatarIan Lance Taylor <iant@golang.org>
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
parent 14bc4f5e
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Showing with 1311 additions and 278 deletions
src/cmd/dist/deps.go
View file @ 731b6321
......@@ -420,12 +420,14 @@ var builddeps = map[string][]string{
"crypto/sha1": {
"crypto", // crypto/sha1
"errors", // crypto/sha1
"hash", // crypto/sha1
"internal/cpu", // crypto/sha1
},
"crypto/sha256": {
"crypto", // crypto/sha256
"errors", // crypto/sha256
"hash", // crypto/sha256
"internal/cpu", // crypto/sha256
},
......@@ -635,7 +637,8 @@ var builddeps = map[string][]string{
},
"hash/adler32": {
"hash", // hash/adler32
"errors", // hash/adler32
"hash", // hash/adler32
},
"internal/cpu": {
......
src/crypto/md5/md5.go
View file @ 731b6321
......@@ -12,6 +12,7 @@ package md5
import (
"crypto"
"errors"
"hash"
)
......@@ -50,6 +51,78 @@ func (d *digest) Reset() {
d.len = 0
}
const (
magic = "md5\x01"
marshaledSize = len(magic) + 4*4 + chunk + 8
)
func (d *digest) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize)
b = append(b, magic...)
b = appendUint32(b, d.s[0])
b = appendUint32(b, d.s[1])
b = appendUint32(b, d.s[2])
b = appendUint32(b, d.s[3])
b = append(b, d.x[:]...)
b = appendUint64(b, d.len)
return b, nil
}
func (d *digest) UnmarshalBinary(b []byte) error {
if len(b) < len(magic) || string(b[:len(magic)]) != magic {
return errors.New("crypto/md5: invalid hash state identifier")
}
if len(b) != marshaledSize {
return errors.New("crypto/md5: invalid hash state size")
}
b = b[len(magic):]
b, d.s[0] = consumeUint32(b)
b, d.s[1] = consumeUint32(b)
b, d.s[2] = consumeUint32(b)
b, d.s[3] = consumeUint32(b)
b = b[copy(d.x[:], b):]
b, d.len = consumeUint64(b)
d.nx = int(d.len) % chunk
return nil
}
func appendUint64(b []byte, x uint64) []byte {
a := [8]byte{
byte(x >> 56),
byte(x >> 48),
byte(x >> 40),
byte(x >> 32),
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func appendUint32(b []byte, x uint32) []byte {
a := [4]byte{
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func consumeUint64(b []byte) ([]byte, uint64) {
_ = b[7]
x := uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
return b[8:], x
}
func consumeUint32(b []byte) ([]byte, uint32) {
_ = b[3]
x := uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
return b[4:], x
}
// New returns a new hash.Hash computing the MD5 checksum.
func New() hash.Hash {
d := new(digest)
......
src/crypto/md5/md5_test.go
View file @ 731b6321
......@@ -5,7 +5,9 @@
package md5
import (
"bytes"
"crypto/rand"
"encoding"
"fmt"
"io"
"testing"
......@@ -13,42 +15,43 @@ import (
)
type md5Test struct {
out string
in string
out string
in string
halfState string // marshaled hash state after first half of in written, used by TestGoldenMarshal
}
var golden = []md5Test{
{"d41d8cd98f00b204e9800998ecf8427e", ""},
{"0cc175b9c0f1b6a831c399e269772661", "a"},
{"187ef4436122d1cc2f40dc2b92f0eba0", "ab"},
{"900150983cd24fb0d6963f7d28e17f72", "abc"},
{"e2fc714c4727ee9395f324cd2e7f331f", "abcd"},
{"ab56b4d92b40713acc5af89985d4b786", "abcde"},
{"e80b5017098950fc58aad83c8c14978e", "abcdef"},
{"7ac66c0f148de9519b8bd264312c4d64", "abcdefg"},
{"e8dc4081b13434b45189a720b77b6818", "abcdefgh"},
{"8aa99b1f439ff71293e95357bac6fd94", "abcdefghi"},
{"a925576942e94b2ef57a066101b48876", "abcdefghij"},
{"d747fc1719c7eacb84058196cfe56d57", "Discard medicine more than two years old."},
{"bff2dcb37ef3a44ba43ab144768ca837", "He who has a shady past knows that nice guys finish last."},
{"0441015ecb54a7342d017ed1bcfdbea5", "I wouldn't marry him with a ten foot pole."},
{"9e3cac8e9e9757a60c3ea391130d3689", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
{"a0f04459b031f916a59a35cc482dc039", "The days of the digital watch are numbered. -Tom Stoppard"},
{"e7a48e0fe884faf31475d2a04b1362cc", "Nepal premier won't resign."},
{"637d2fe925c07c113800509964fb0e06", "For every action there is an equal and opposite government program."},
{"834a8d18d5c6562119cf4c7f5086cb71", "His money is twice tainted: 'taint yours and 'taint mine."},
{"de3a4d2fd6c73ec2db2abad23b444281", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
{"acf203f997e2cf74ea3aff86985aefaf", "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
{"e1c1384cb4d2221dfdd7c795a4222c9a", "size: a.out: bad magic"},
{"c90f3ddecc54f34228c063d7525bf644", "The major problem is with sendmail. -Mark Horton"},
{"cdf7ab6c1fd49bd9933c43f3ea5af185", "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
{"83bc85234942fc883c063cbd7f0ad5d0", "If the enemy is within range, then so are you."},
{"277cbe255686b48dd7e8f389394d9299", "It's well we cannot hear the screams/That we create in others' dreams."},
{"fd3fb0a7ffb8af16603f3d3af98f8e1f", "You remind me of a TV show, but that's all right: I watch it anyway."},
{"469b13a78ebf297ecda64d4723655154", "C is as portable as Stonehedge!!"},
{"63eb3a2f466410104731c4b037600110", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
{"72c2ed7592debca1c90fc0100f931a2f", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
{"132f7619d33b523b1d9e5bd8e0928355", "How can you write a big system without C++? -Paul Glick"},
{"d41d8cd98f00b204e9800998ecf8427e", "", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"},
{"0cc175b9c0f1b6a831c399e269772661", "a", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"},
{"187ef4436122d1cc2f40dc2b92f0eba0", "ab", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tva\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"},
{"900150983cd24fb0d6963f7d28e17f72", "abc", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tva\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"},
{"e2fc714c4727ee9395f324cd2e7f331f", "abcd", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tvab\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02"},
{"ab56b4d92b40713acc5af89985d4b786", "abcde", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tvab\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02"},
{"e80b5017098950fc58aad83c8c14978e", "abcdef", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tvabc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03"},
{"7ac66c0f148de9519b8bd264312c4d64", "abcdefg", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tvabc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03"},
{"e8dc4081b13434b45189a720b77b6818", "abcdefgh", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tvabcd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04"},
{"8aa99b1f439ff71293e95357bac6fd94", "abcdefghi", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tvabcd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04"},
{"a925576942e94b2ef57a066101b48876", "abcdefghij", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tvabcde\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05"},
{"d747fc1719c7eacb84058196cfe56d57", "Discard medicine more than two years old.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvDiscard medicine mor\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x14"},
{"bff2dcb37ef3a44ba43ab144768ca837", "He who has a shady past knows that nice guys finish last.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvHe who has a shady past know\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"0441015ecb54a7342d017ed1bcfdbea5", "I wouldn't marry him with a ten foot pole.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvI wouldn't marry him \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15"},
{"9e3cac8e9e9757a60c3ea391130d3689", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvFree! Free!/A trip/to Mars/f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"a0f04459b031f916a59a35cc482dc039", "The days of the digital watch are numbered. -Tom Stoppard", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvThe days of the digital watch\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d"},
{"e7a48e0fe884faf31475d2a04b1362cc", "Nepal premier won't resign.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvNepal premier\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\r"},
{"637d2fe925c07c113800509964fb0e06", "For every action there is an equal and opposite government program.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvFor every action there is an equa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00!"},
{"834a8d18d5c6562119cf4c7f5086cb71", "His money is twice tainted: 'taint yours and 'taint mine.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvHis money is twice tainted: \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"de3a4d2fd6c73ec2db2abad23b444281", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvThere is no reason for any individual to hav\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,"},
{"acf203f997e2cf74ea3aff86985aefaf", "It's a tiny change to the code and not completely disgusting. - Bob Manchek", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvIt's a tiny change to the code and no\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00%"},
{"e1c1384cb4d2221dfdd7c795a4222c9a", "size: a.out: bad magic", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tvsize: a.out\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\f"},
{"c90f3ddecc54f34228c063d7525bf644", "The major problem is with sendmail. -Mark Horton", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvThe major problem is wit\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"},
{"cdf7ab6c1fd49bd9933c43f3ea5af185", "Give me a rock, paper and scissors and I will move the world. CCFestoon", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvGive me a rock, paper and scissors a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$"},
{"83bc85234942fc883c063cbd7f0ad5d0", "If the enemy is within range, then so are you.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvIf the enemy is within \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x17"},
{"277cbe255686b48dd7e8f389394d9299", "It's well we cannot hear the screams/That we create in others' dreams.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvIt's well we cannot hear the scream\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#"},
{"fd3fb0a7ffb8af16603f3d3af98f8e1f", "You remind me of a TV show, but that's all right: I watch it anyway.", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvYou remind me of a TV show, but th\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\""},
{"469b13a78ebf297ecda64d4723655154", "C is as portable as Stonehedge!!", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvC is as portable\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10"},
{"63eb3a2f466410104731c4b037600110", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvEven if I could be Shakespeare, I think I sh\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,"},
{"72c2ed7592debca1c90fc0100f931a2f", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule", "md5\x01\xa7\xc9\x18\x9b\xc3E\x18\xf2\x82\xfd\xf3$\x9d_\v\nem\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00B"},
{"132f7619d33b523b1d9e5bd8e0928355", "How can you write a big system without C++? -Paul Glick", "md5\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102TvHow can you write a big syst\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
}
func TestGolden(t *testing.T) {
......@@ -82,6 +85,38 @@ func TestGolden(t *testing.T) {
}
}
func TestGoldenMarshal(t *testing.T) {
for _, g := range golden {
h := New()
h2 := New()
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfState {
t.Errorf("md5(%q) state = %q, want %q", g.in, state, g.halfState)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if actual, actual2 := h.Sum(nil), h2.Sum(nil); !bytes.Equal(actual, actual2) {
t.Errorf("md5(%q) = 0x%x != marshaled 0x%x", g.in, actual, actual2)
}
}
}
func TestLarge(t *testing.T) {
const N = 10000
ok := "2bb571599a4180e1d542f76904adc3df" // md5sum of "0123456789" * 1000
......
src/crypto/sha1/sha1.go
View file @ 731b6321
......@@ -10,6 +10,7 @@ package sha1
import (
"crypto"
"errors"
"hash"
)
......@@ -40,6 +41,68 @@ type digest struct {
len uint64
}
const (
magic = "sha\x01"
marshaledSize = len(magic) + 5*4 + chunk + 8
)
func (d *digest) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize)
b = append(b, magic...)
b = appendUint32(b, d.h[0])
b = appendUint32(b, d.h[1])
b = appendUint32(b, d.h[2])
b = appendUint32(b, d.h[3])
b = appendUint32(b, d.h[4])
b = append(b, d.x[:]...)
b = appendUint64(b, d.len)
return b, nil
}
func (d *digest) UnmarshalBinary(b []byte) error {
if len(b) < len(magic) || string(b[:len(magic)]) != magic {
return errors.New("crypto/sha1: invalid hash state identifier")
}
if len(b) != marshaledSize {
return errors.New("crypto/sha1: invalid hash state size")
}
b = b[len(magic):]
b, d.h[0] = consumeUint32(b)
b, d.h[1] = consumeUint32(b)
b, d.h[2] = consumeUint32(b)
b, d.h[3] = consumeUint32(b)
b, d.h[4] = consumeUint32(b)
b = b[copy(d.x[:], b):]
b, d.len = consumeUint64(b)
d.nx = int(d.len) % chunk
return nil
}
func appendUint64(b []byte, x uint64) []byte {
var a [8]byte
putUint64(a[:], x)
return append(b, a[:]...)
}
func appendUint32(b []byte, x uint32) []byte {
var a [4]byte
putUint32(a[:], x)
return append(b, a[:]...)
}
func consumeUint64(b []byte) ([]byte, uint64) {
_ = b[7]
x := uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
return b[8:], x
}
func consumeUint32(b []byte) ([]byte, uint32) {
_ = b[3]
x := uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
return b[4:], x
}
func (d *digest) Reset() {
d.h[0] = init0
d.h[1] = init1
......
src/crypto/sha1/sha1_test.go
View file @ 731b6321
......@@ -7,50 +7,53 @@
package sha1
import (
"bytes"
"crypto/rand"
"encoding"
"fmt"
"io"
"testing"
)
type sha1Test struct {
out string
in string
out string
in string
halfState string // marshaled hash state after first half of in written, used by TestGoldenMarshal
}
var golden = []sha1Test{
{"76245dbf96f661bd221046197ab8b9f063f11bad", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"},
{"da39a3ee5e6b4b0d3255bfef95601890afd80709", ""},
{"86f7e437faa5a7fce15d1ddcb9eaeaea377667b8", "a"},
{"da23614e02469a0d7c7bd1bdab5c9c474b1904dc", "ab"},
{"a9993e364706816aba3e25717850c26c9cd0d89d", "abc"},
{"81fe8bfe87576c3ecb22426f8e57847382917acf", "abcd"},
{"03de6c570bfe24bfc328ccd7ca46b76eadaf4334", "abcde"},
{"1f8ac10f23c5b5bc1167bda84b833e5c057a77d2", "abcdef"},
{"2fb5e13419fc89246865e7a324f476ec624e8740", "abcdefg"},
{"425af12a0743502b322e93a015bcf868e324d56a", "abcdefgh"},
{"c63b19f1e4c8b5f76b25c49b8b87f57d8e4872a1", "abcdefghi"},
{"d68c19a0a345b7eab78d5e11e991c026ec60db63", "abcdefghij"},
{"ebf81ddcbe5bf13aaabdc4d65354fdf2044f38a7", "Discard medicine more than two years old."},
{"e5dea09392dd886ca63531aaa00571dc07554bb6", "He who has a shady past knows that nice guys finish last."},
{"45988f7234467b94e3e9494434c96ee3609d8f8f", "I wouldn't marry him with a ten foot pole."},
{"55dee037eb7460d5a692d1ce11330b260e40c988", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
{"b7bc5fb91080c7de6b582ea281f8a396d7c0aee8", "The days of the digital watch are numbered. -Tom Stoppard"},
{"c3aed9358f7c77f523afe86135f06b95b3999797", "Nepal premier won't resign."},
{"6e29d302bf6e3a5e4305ff318d983197d6906bb9", "For every action there is an equal and opposite government program."},
{"597f6a540010f94c15d71806a99a2c8710e747bd", "His money is twice tainted: 'taint yours and 'taint mine."},
{"6859733b2590a8a091cecf50086febc5ceef1e80", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
{"514b2630ec089b8aee18795fc0cf1f4860cdacad", "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
{"c5ca0d4a7b6676fc7aa72caa41cc3d5df567ed69", "size: a.out: bad magic"},
{"74c51fa9a04eadc8c1bbeaa7fc442f834b90a00a", "The major problem is with sendmail. -Mark Horton"},
{"0b4c4ce5f52c3ad2821852a8dc00217fa18b8b66", "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
{"3ae7937dd790315beb0f48330e8642237c61550a", "If the enemy is within range, then so are you."},
{"410a2b296df92b9a47412b13281df8f830a9f44b", "It's well we cannot hear the screams/That we create in others' dreams."},
{"841e7c85ca1adcddbdd0187f1289acb5c642f7f5", "You remind me of a TV show, but that's all right: I watch it anyway."},
{"163173b825d03b952601376b25212df66763e1db", "C is as portable as Stonehedge!!"},
{"32b0377f2687eb88e22106f133c586ab314d5279", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
{"0885aaf99b569542fd165fa44e322718f4a984e0", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
{"6627d6904d71420b0bf3886ab629623538689f45", "How can you write a big system without C++? -Paul Glick"},
{"76245dbf96f661bd221046197ab8b9f063f11bad", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n", "sha\x01\v\xa0)I\xdeq(8h\x9ev\xe5\x88[\xf8\x81\x17\xba4Daaaaaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x96"},
{"da39a3ee5e6b4b0d3255bfef95601890afd80709", "", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x00"},
{"86f7e437faa5a7fce15d1ddcb9eaeaea377667b8", "a", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x00"},
{"da23614e02469a0d7c7bd1bdab5c9c474b1904dc", "ab", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x01"},
{"a9993e364706816aba3e25717850c26c9cd0d89d", "abc", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0abaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x01"},
{"81fe8bfe87576c3ecb22426f8e57847382917acf", "abcd", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0abcaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x02"},
{"03de6c570bfe24bfc328ccd7ca46b76eadaf4334", "abcde", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0abcdaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x02"},
{"1f8ac10f23c5b5bc1167bda84b833e5c057a77d2", "abcdef", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0abcdeaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x03"},
{"2fb5e13419fc89246865e7a324f476ec624e8740", "abcdefg", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0abcdefaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x03"},
{"425af12a0743502b322e93a015bcf868e324d56a", "abcdefgh", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0abcdefgaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x04"},
{"c63b19f1e4c8b5f76b25c49b8b87f57d8e4872a1", "abcdefghi", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0abcdefghaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x04"},
{"d68c19a0a345b7eab78d5e11e991c026ec60db63", "abcdefghij", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0abcdefghiaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x05"},
{"ebf81ddcbe5bf13aaabdc4d65354fdf2044f38a7", "Discard medicine more than two years old.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0Discard medicine moraaaaaaaaaaaaaaaaaaaaaaaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x14"},
{"e5dea09392dd886ca63531aaa00571dc07554bb6", "He who has a shady past knows that nice guys finish last.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0He who has a shady past knowwo years old.aaa\naaaaaaaaaaaaaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"45988f7234467b94e3e9494434c96ee3609d8f8f", "I wouldn't marry him with a ten foot pole.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0I wouldn't marry him st knows that nice guys finish last.aaaaaaa\x00\x00\x00\x00\x00\x00\x00\x15"},
{"55dee037eb7460d5a692d1ce11330b260e40c988", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0Free! Free!/A trip/to Mars/ften foot pole.ys finish last.aaaaaaa\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"b7bc5fb91080c7de6b582ea281f8a396d7c0aee8", "The days of the digital watch are numbered. -Tom Stoppard", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0The days of the digital watchr 900/empty jars/Burma Shaveaaaaaaa\x00\x00\x00\x00\x00\x00\x00\x1d"},
{"c3aed9358f7c77f523afe86135f06b95b3999797", "Nepal premier won't resign.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0Nepal premierhe digital watch are numbered. -Tom Stoppardaaaaaa\x00\x00\x00\x00\x00\x00\x00\r"},
{"6e29d302bf6e3a5e4305ff318d983197d6906bb9", "For every action there is an equal and opposite government program.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0For every action there is an equa numbered. -Tom Stoppardaaaaaa\x00\x00\x00\x00\x00\x00\x00!"},
{"597f6a540010f94c15d71806a99a2c8710e747bd", "His money is twice tainted: 'taint yours and 'taint mine.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0His money is twice tainted: equal and opposite government progr\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"6859733b2590a8a091cecf50086febc5ceef1e80", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0There is no reason for any individual to hav 'taint mine.t progr\x00\x00\x00\x00\x00\x00\x00,"},
{"514b2630ec089b8aee18795fc0cf1f4860cdacad", "It's a tiny change to the code and not completely disgusting. - Bob Manchek", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0It's a tiny change to the code and no to have a computer in thei\x00\x00\x00\x00\x00\x00\x00%"},
{"c5ca0d4a7b6676fc7aa72caa41cc3d5df567ed69", "size: a.out: bad magic", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0size: a.outchange to the code and not completely disgusting. - \x00\x00\x00\x00\x00\x00\x00\f"},
{"74c51fa9a04eadc8c1bbeaa7fc442f834b90a00a", "The major problem is with sendmail. -Mark Horton", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0The major problem is wite code and not completely disgusting. - \x00\x00\x00\x00\x00\x00\x00\x18"},
{"0b4c4ce5f52c3ad2821852a8dc00217fa18b8b66", "Give me a rock, paper and scissors and I will move the world. CCFestoon", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0Give me a rock, paper and scissors a -Mark Horton disgusting. - \x00\x00\x00\x00\x00\x00\x00$"},
{"3ae7937dd790315beb0f48330e8642237c61550a", "If the enemy is within range, then so are you.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0If the enemy is within nd scissors and I will move the world. C\x00\x00\x00\x00\x00\x00\x00\x17"},
{"410a2b296df92b9a47412b13281df8f830a9f44b", "It's well we cannot hear the screams/That we create in others' dreams.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0It's well we cannot hear the screamso are you.move the world. C\x00\x00\x00\x00\x00\x00\x00#"},
{"841e7c85ca1adcddbdd0187f1289acb5c642f7f5", "You remind me of a TV show, but that's all right: I watch it anyway.", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0You remind me of a TV show, but thms/That we create in others' d\x00\x00\x00\x00\x00\x00\x00\""},
{"163173b825d03b952601376b25212df66763e1db", "C is as portable as Stonehedge!!", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0C is as portable a TV show, but that's all right: I watch it any\x00\x00\x00\x00\x00\x00\x00\x10"},
{"32b0377f2687eb88e22106f133c586ab314d5279", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0Even if I could be Shakespeare, I think I shight: I watch it any\x00\x00\x00\x00\x00\x00\x00,"},
{"0885aaf99b569542fd165fa44e322718f4a984e0", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule", "sha\x01x}\xf4\r\xeb\xf2\x10\x87\xe8[\xb2JA$D\xb7غx8eme Faraday. - A. Huxleyspeare, I think I should still choose to\x00\x00\x00\x00\x00\x00\x00B"},
{"6627d6904d71420b0bf3886ab629623538689f45", "How can you write a big system without C++? -Paul Glick", "sha\x01gE#\x01\xefͫ\x89\x98\xba\xdc\xfe\x102Tv\xc3\xd2\xe1\xf0How can you write a big systo its mole fraction. Lewis-Randall \x00\x00\x00\x00\x00\x00\x00\x1c"},
}
func TestGolden(t *testing.T) {
......@@ -87,6 +90,40 @@ func TestGolden(t *testing.T) {
}
}
func TestGoldenMarshal(t *testing.T) {
h := New()
h2 := New()
for _, g := range golden {
h.Reset()
h2.Reset()
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfState {
t.Errorf("sha1(%q) state = %q, want %q", g.in, state, g.halfState)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if actual, actual2 := h.Sum(nil), h2.Sum(nil); !bytes.Equal(actual, actual2) {
t.Errorf("sha1(%q) = 0x%x != marshaled 0x%x", g.in, actual, actual2)
}
}
}
func TestSize(t *testing.T) {
c := New()
if got := c.Size(); got != Size {
......
src/crypto/sha256/sha256.go
View file @ 731b6321
......@@ -8,6 +8,7 @@ package sha256
import (
"crypto"
"errors"
"hash"
)
......@@ -54,6 +55,91 @@ type digest struct {
is224 bool // mark if this digest is SHA-224
}
const (
magic224 = "sha\x02"
magic256 = "sha\x03"
marshaledSize = len(magic256) + 8*4 + chunk + 8
)
func (d *digest) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize)
if d.is224 {
b = append(b, magic224...)
} else {
b = append(b, magic256...)
}
b = appendUint32(b, d.h[0])
b = appendUint32(b, d.h[1])
b = appendUint32(b, d.h[2])
b = appendUint32(b, d.h[3])
b = appendUint32(b, d.h[4])
b = appendUint32(b, d.h[5])
b = appendUint32(b, d.h[6])
b = appendUint32(b, d.h[7])
b = append(b, d.x[:]...)
b = appendUint64(b, d.len)
return b, nil
}
func (d *digest) UnmarshalBinary(b []byte) error {
if len(b) < len(magic224) || (d.is224 && string(b[:len(magic224)]) != magic224) || (!d.is224 && string(b[:len(magic256)]) != magic256) {
return errors.New("crypto/sha256: invalid hash state identifier")
}
if len(b) != marshaledSize {
return errors.New("crypto/sha256: invalid hash state size")
}
b = b[len(magic224):]
b, d.h[0] = consumeUint32(b)
b, d.h[1] = consumeUint32(b)
b, d.h[2] = consumeUint32(b)
b, d.h[3] = consumeUint32(b)
b, d.h[4] = consumeUint32(b)
b, d.h[5] = consumeUint32(b)
b, d.h[6] = consumeUint32(b)
b, d.h[7] = consumeUint32(b)
b = b[copy(d.x[:], b):]
b, d.len = consumeUint64(b)
d.nx = int(d.len) % chunk
return nil
}
func appendUint64(b []byte, x uint64) []byte {
a := [8]byte{
byte(x >> 56),
byte(x >> 48),
byte(x >> 40),
byte(x >> 32),
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func appendUint32(b []byte, x uint32) []byte {
a := [4]byte{
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func consumeUint64(b []byte) ([]byte, uint64) {
_ = b[7]
x := uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
return b[8:], x
}
func consumeUint32(b []byte) ([]byte, uint32) {
_ = b[3]
x := uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
return b[4:], x
}
func (d *digest) Reset() {
if !d.is224 {
d.h[0] = init0
......
src/crypto/sha256/sha256_test.go
View file @ 731b6321
......@@ -7,83 +7,87 @@
package sha256
import (
"bytes"
"crypto/rand"
"encoding"
"fmt"
"hash"
"io"
"testing"
)
type sha256Test struct {
out string
in string
out string
in string
halfState string // marshaled hash state after first half of in written, used by TestGoldenMarshal
}
var golden = []sha256Test{
{"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", ""},
{"ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb", "a"},
{"fb8e20fc2e4c3f248c60c39bd652f3c1347298bb977b8b4d5903b85055620603", "ab"},
{"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad", "abc"},
{"88d4266fd4e6338d13b845fcf289579d209c897823b9217da3e161936f031589", "abcd"},
{"36bbe50ed96841d10443bcb670d6554f0a34b761be67ec9c4a8ad2c0c44ca42c", "abcde"},
{"bef57ec7f53a6d40beb640a780a639c83bc29ac8a9816f1fc6c5c6dcd93c4721", "abcdef"},
{"7d1a54127b222502f5b79b5fb0803061152a44f92b37e23c6527baf665d4da9a", "abcdefg"},
{"9c56cc51b374c3ba189210d5b6d4bf57790d351c96c47c02190ecf1e430635ab", "abcdefgh"},
{"19cc02f26df43cc571bc9ed7b0c4d29224a3ec229529221725ef76d021c8326f", "abcdefghi"},
{"72399361da6a7754fec986dca5b7cbaf1c810a28ded4abaf56b2106d06cb78b0", "abcdefghij"},
{"a144061c271f152da4d151034508fed1c138b8c976339de229c3bb6d4bbb4fce", "Discard medicine more than two years old."},
{"6dae5caa713a10ad04b46028bf6dad68837c581616a1589a265a11288d4bb5c4", "He who has a shady past knows that nice guys finish last."},
{"ae7a702a9509039ddbf29f0765e70d0001177914b86459284dab8b348c2dce3f", "I wouldn't marry him with a ten foot pole."},
{"6748450b01c568586715291dfa3ee018da07d36bb7ea6f180c1af6270215c64f", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
{"14b82014ad2b11f661b5ae6a99b75105c2ffac278cd071cd6c05832793635774", "The days of the digital watch are numbered. -Tom Stoppard"},
{"7102cfd76e2e324889eece5d6c41921b1e142a4ac5a2692be78803097f6a48d8", "Nepal premier won't resign."},
{"23b1018cd81db1d67983c5f7417c44da9deb582459e378d7a068552ea649dc9f", "For every action there is an equal and opposite government program."},
{"8001f190dfb527261c4cfcab70c98e8097a7a1922129bc4096950e57c7999a5a", "His money is twice tainted: 'taint yours and 'taint mine."},
{"8c87deb65505c3993eb24b7a150c4155e82eee6960cf0c3a8114ff736d69cad5", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
{"bfb0a67a19cdec3646498b2e0f751bddc41bba4b7f30081b0b932aad214d16d7", "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
{"7f9a0b9bf56332e19f5a0ec1ad9c1425a153da1c624868fda44561d6b74daf36", "size: a.out: bad magic"},
{"b13f81b8aad9e3666879af19886140904f7f429ef083286195982a7588858cfc", "The major problem is with sendmail. -Mark Horton"},
{"b26c38d61519e894480c70c8374ea35aa0ad05b2ae3d6674eec5f52a69305ed4", "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
{"049d5e26d4f10222cd841a119e38bd8d2e0d1129728688449575d4ff42b842c1", "If the enemy is within range, then so are you."},
{"0e116838e3cc1c1a14cd045397e29b4d087aa11b0853fc69ec82e90330d60949", "It's well we cannot hear the screams/That we create in others' dreams."},
{"4f7d8eb5bcf11de2a56b971021a444aa4eafd6ecd0f307b5109e4e776cd0fe46", "You remind me of a TV show, but that's all right: I watch it anyway."},
{"61c0cc4c4bd8406d5120b3fb4ebc31ce87667c162f29468b3c779675a85aebce", "C is as portable as Stonehedge!!"},
{"1fb2eb3688093c4a3f80cd87a5547e2ce940a4f923243a79a2a1e242220693ac", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
{"395585ce30617b62c80b93e8208ce866d4edc811a177fdb4b82d3911d8696423", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
{"4f9b189a13d030838269dce846b16a1ce9ce81fe63e65de2f636863336a98fe6", "How can you write a big system without C++? -Paul Glick"},
{"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"},
{"ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb", "a", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"},
{"fb8e20fc2e4c3f248c60c39bd652f3c1347298bb977b8b4d5903b85055620603", "ab", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"},
{"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad", "abc", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"},
{"88d4266fd4e6338d13b845fcf289579d209c897823b9217da3e161936f031589", "abcd", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19ab\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02"},
{"36bbe50ed96841d10443bcb670d6554f0a34b761be67ec9c4a8ad2c0c44ca42c", "abcde", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19ab\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02"},
{"bef57ec7f53a6d40beb640a780a639c83bc29ac8a9816f1fc6c5c6dcd93c4721", "abcdef", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19abc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03"},
{"7d1a54127b222502f5b79b5fb0803061152a44f92b37e23c6527baf665d4da9a", "abcdefg", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19abc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03"},
{"9c56cc51b374c3ba189210d5b6d4bf57790d351c96c47c02190ecf1e430635ab", "abcdefgh", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19abcd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04"},
{"19cc02f26df43cc571bc9ed7b0c4d29224a3ec229529221725ef76d021c8326f", "abcdefghi", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19abcd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04"},
{"72399361da6a7754fec986dca5b7cbaf1c810a28ded4abaf56b2106d06cb78b0", "abcdefghij", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19abcde\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05"},
{"a144061c271f152da4d151034508fed1c138b8c976339de229c3bb6d4bbb4fce", "Discard medicine more than two years old.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19Discard medicine mor\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x14"},
{"6dae5caa713a10ad04b46028bf6dad68837c581616a1589a265a11288d4bb5c4", "He who has a shady past knows that nice guys finish last.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19He who has a shady past know\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"ae7a702a9509039ddbf29f0765e70d0001177914b86459284dab8b348c2dce3f", "I wouldn't marry him with a ten foot pole.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19I wouldn't marry him \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15"},
{"6748450b01c568586715291dfa3ee018da07d36bb7ea6f180c1af6270215c64f", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19Free! Free!/A trip/to Mars/f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"14b82014ad2b11f661b5ae6a99b75105c2ffac278cd071cd6c05832793635774", "The days of the digital watch are numbered. -Tom Stoppard", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19The days of the digital watch\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d"},
{"7102cfd76e2e324889eece5d6c41921b1e142a4ac5a2692be78803097f6a48d8", "Nepal premier won't resign.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19Nepal premier\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\r"},
{"23b1018cd81db1d67983c5f7417c44da9deb582459e378d7a068552ea649dc9f", "For every action there is an equal and opposite government program.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19For every action there is an equa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00!"},
{"8001f190dfb527261c4cfcab70c98e8097a7a1922129bc4096950e57c7999a5a", "His money is twice tainted: 'taint yours and 'taint mine.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19His money is twice tainted: \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"8c87deb65505c3993eb24b7a150c4155e82eee6960cf0c3a8114ff736d69cad5", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19There is no reason for any individual to hav\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,"},
{"bfb0a67a19cdec3646498b2e0f751bddc41bba4b7f30081b0b932aad214d16d7", "It's a tiny change to the code and not completely disgusting. - Bob Manchek", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19It's a tiny change to the code and no\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00%"},
{"7f9a0b9bf56332e19f5a0ec1ad9c1425a153da1c624868fda44561d6b74daf36", "size: a.out: bad magic", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19size: a.out\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\f"},
{"b13f81b8aad9e3666879af19886140904f7f429ef083286195982a7588858cfc", "The major problem is with sendmail. -Mark Horton", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19The major problem is wit\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"},
{"b26c38d61519e894480c70c8374ea35aa0ad05b2ae3d6674eec5f52a69305ed4", "Give me a rock, paper and scissors and I will move the world. CCFestoon", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19Give me a rock, paper and scissors a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$"},
{"049d5e26d4f10222cd841a119e38bd8d2e0d1129728688449575d4ff42b842c1", "If the enemy is within range, then so are you.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19If the enemy is within \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x17"},
{"0e116838e3cc1c1a14cd045397e29b4d087aa11b0853fc69ec82e90330d60949", "It's well we cannot hear the screams/That we create in others' dreams.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19It's well we cannot hear the scream\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#"},
{"4f7d8eb5bcf11de2a56b971021a444aa4eafd6ecd0f307b5109e4e776cd0fe46", "You remind me of a TV show, but that's all right: I watch it anyway.", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19You remind me of a TV show, but th\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\""},
{"61c0cc4c4bd8406d5120b3fb4ebc31ce87667c162f29468b3c779675a85aebce", "C is as portable as Stonehedge!!", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19C is as portable\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10"},
{"1fb2eb3688093c4a3f80cd87a5547e2ce940a4f923243a79a2a1e242220693ac", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19Even if I could be Shakespeare, I think I sh\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,"},
{"395585ce30617b62c80b93e8208ce866d4edc811a177fdb4b82d3911d8696423", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule", "sha\x03\x93\x14\xc8z\x87\x0e\vo\xf1E\x0f\xa4V\xb2a\x00\x87\xb5ǔ\xfc\xeaV\u009eg\xbc\x17\xb1\x85њem\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00B"},
{"4f9b189a13d030838269dce846b16a1ce9ce81fe63e65de2f636863336a98fe6", "How can you write a big system without C++? -Paul Glick", "sha\x03j\t\xe6g\xbbg\xae\x85<n\xf3r\xa5O\xf5:Q\x0eR\u007f\x9b\x05h\x8c\x1f\x83٫[\xe0\xcd\x19How can you write a big syst\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
}
var golden224 = []sha256Test{
{"d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f", ""},
{"abd37534c7d9a2efb9465de931cd7055ffdb8879563ae98078d6d6d5", "a"},
{"db3cda86d4429a1d39c148989566b38f7bda0156296bd364ba2f878b", "ab"},
{"23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7", "abc"},
{"a76654d8e3550e9a2d67a0eeb6c67b220e5885eddd3fde135806e601", "abcd"},
{"bdd03d560993e675516ba5a50638b6531ac2ac3d5847c61916cfced6", "abcde"},
{"7043631cb415556a275a4ebecb802c74ee9f6153908e1792a90b6a98", "abcdef"},
{"d1884e711701ad81abe0c77a3b0ea12e19ba9af64077286c72fc602d", "abcdefg"},
{"17eb7d40f0356f8598e89eafad5f6c759b1f822975d9c9b737c8a517", "abcdefgh"},
{"aeb35915346c584db820d2de7af3929ffafef9222a9bcb26516c7334", "abcdefghi"},
{"d35e1e5af29ddb0d7e154357df4ad9842afee527c689ee547f753188", "abcdefghij"},
{"19297f1cef7ddc8a7e947f5c5a341e10f7245045e425db67043988d7", "Discard medicine more than two years old."},
{"0f10c2eb436251f777fbbd125e260d36aecf180411726c7c885f599a", "He who has a shady past knows that nice guys finish last."},
{"4d1842104919f314cad8a3cd20b3cba7e8ed3e7abed62b57441358f6", "I wouldn't marry him with a ten foot pole."},
{"a8ba85c6fe0c48fbffc72bbb2f03fcdbc87ae2dc7a56804d1590fb3b", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
{"5543fbab26e67e8885b1a852d567d1cb8b9bfe42e0899584c50449a9", "The days of the digital watch are numbered. -Tom Stoppard"},
{"65ca107390f5da9efa05d28e57b221657edc7e43a9a18fb15b053ddb", "Nepal premier won't resign."},
{"84953962be366305a9cc9b5cd16ed019edc37ac96c0deb3e12cca116", "For every action there is an equal and opposite government program."},
{"35a189ce987151dfd00b3577583cc6a74b9869eecf894459cb52038d", "His money is twice tainted: 'taint yours and 'taint mine."},
{"2fc333713983edfd4ef2c0da6fb6d6415afb94987c91e4069eb063e6", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
{"cbe32d38d577a1b355960a4bc3c659c2dc4670859a19777a875842c4", "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
{"a2dc118ce959e027576413a7b440c875cdc8d40df9141d6ef78a57e1", "size: a.out: bad magic"},
{"d10787e24052bcff26dc484787a54ed819e4e4511c54890ee977bf81", "The major problem is with sendmail. -Mark Horton"},
{"62efcf16ab8a893acdf2f348aaf06b63039ff1bf55508c830532c9fb", "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
{"3e9b7e4613c59f58665104c5fa86c272db5d3a2ff30df5bb194a5c99", "If the enemy is within range, then so are you."},
{"5999c208b8bdf6d471bb7c359ac5b829e73a8211dff686143a4e7f18", "It's well we cannot hear the screams/That we create in others' dreams."},
{"3b2d67ff54eabc4ef737b14edf87c64280ef582bcdf2a6d56908b405", "You remind me of a TV show, but that's all right: I watch it anyway."},
{"d0733595d20e4d3d6b5c565a445814d1bbb2fd08b9a3b8ffb97930c6", "C is as portable as Stonehedge!!"},
{"43fb8aeed8a833175c9295c1165415f98c866ef08a4922959d673507", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
{"ec18e66e93afc4fb1604bc2baedbfd20b44c43d76e65c0996d7851c6", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
{"86ed2eaa9c75ba98396e5c9fb2f679ecf0ea2ed1e0ee9ceecb4a9332", "How can you write a big system without C++? -Paul Glick"},
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{"abd37534c7d9a2efb9465de931cd7055ffdb8879563ae98078d6d6d5", "a", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"},
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{"7043631cb415556a275a4ebecb802c74ee9f6153908e1792a90b6a98", "abcdef", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4abc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03"},
{"d1884e711701ad81abe0c77a3b0ea12e19ba9af64077286c72fc602d", "abcdefg", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4abc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03"},
{"17eb7d40f0356f8598e89eafad5f6c759b1f822975d9c9b737c8a517", "abcdefgh", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4abcd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04"},
{"aeb35915346c584db820d2de7af3929ffafef9222a9bcb26516c7334", "abcdefghi", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4abcd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04"},
{"d35e1e5af29ddb0d7e154357df4ad9842afee527c689ee547f753188", "abcdefghij", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4abcde\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05"},
{"19297f1cef7ddc8a7e947f5c5a341e10f7245045e425db67043988d7", "Discard medicine more than two years old.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4Discard medicine mor\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x14"},
{"0f10c2eb436251f777fbbd125e260d36aecf180411726c7c885f599a", "He who has a shady past knows that nice guys finish last.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4He who has a shady past know\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"4d1842104919f314cad8a3cd20b3cba7e8ed3e7abed62b57441358f6", "I wouldn't marry him with a ten foot pole.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4I wouldn't marry him \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15"},
{"a8ba85c6fe0c48fbffc72bbb2f03fcdbc87ae2dc7a56804d1590fb3b", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4Free! Free!/A trip/to Mars/f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"5543fbab26e67e8885b1a852d567d1cb8b9bfe42e0899584c50449a9", "The days of the digital watch are numbered. -Tom Stoppard", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4The days of the digital watch\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d"},
{"65ca107390f5da9efa05d28e57b221657edc7e43a9a18fb15b053ddb", "Nepal premier won't resign.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4Nepal premier\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\r"},
{"84953962be366305a9cc9b5cd16ed019edc37ac96c0deb3e12cca116", "For every action there is an equal and opposite government program.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4For every action there is an equa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00!"},
{"35a189ce987151dfd00b3577583cc6a74b9869eecf894459cb52038d", "His money is twice tainted: 'taint yours and 'taint mine.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4His money is twice tainted: \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
{"2fc333713983edfd4ef2c0da6fb6d6415afb94987c91e4069eb063e6", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4There is no reason for any individual to hav\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,"},
{"cbe32d38d577a1b355960a4bc3c659c2dc4670859a19777a875842c4", "It's a tiny change to the code and not completely disgusting. - Bob Manchek", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4It's a tiny change to the code and no\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00%"},
{"a2dc118ce959e027576413a7b440c875cdc8d40df9141d6ef78a57e1", "size: a.out: bad magic", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4size: a.out\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\f"},
{"d10787e24052bcff26dc484787a54ed819e4e4511c54890ee977bf81", "The major problem is with sendmail. -Mark Horton", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4The major problem is wit\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"},
{"62efcf16ab8a893acdf2f348aaf06b63039ff1bf55508c830532c9fb", "Give me a rock, paper and scissors and I will move the world. CCFestoon", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4Give me a rock, paper and scissors a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$"},
{"3e9b7e4613c59f58665104c5fa86c272db5d3a2ff30df5bb194a5c99", "If the enemy is within range, then so are you.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4If the enemy is within \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x17"},
{"5999c208b8bdf6d471bb7c359ac5b829e73a8211dff686143a4e7f18", "It's well we cannot hear the screams/That we create in others' dreams.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4It's well we cannot hear the scream\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#"},
{"3b2d67ff54eabc4ef737b14edf87c64280ef582bcdf2a6d56908b405", "You remind me of a TV show, but that's all right: I watch it anyway.", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4You remind me of a TV show, but th\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\""},
{"d0733595d20e4d3d6b5c565a445814d1bbb2fd08b9a3b8ffb97930c6", "C is as portable as Stonehedge!!", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4C is as portable\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10"},
{"43fb8aeed8a833175c9295c1165415f98c866ef08a4922959d673507", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4Even if I could be Shakespeare, I think I sh\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,"},
{"ec18e66e93afc4fb1604bc2baedbfd20b44c43d76e65c0996d7851c6", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule", "sha\x02\xea\xc9\xc2e\xddH\x0f\\.\xeb\xc4G\xda\xea\xd5TX\x17\xca3l\xfaV\x9d\x9d\x056\x85&1\rDem\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00B"},
{"86ed2eaa9c75ba98396e5c9fb2f679ecf0ea2ed1e0ee9ceecb4a9332", "How can you write a big system without C++? -Paul Glick", "sha\x02\xc1\x05\x9e\xd86|\xd5\a0p\xdd\x17\xf7\x0eY9\xff\xc0\v1hX\x15\x11d\xf9\x8f\xa7\xbe\xfaO\xa4How can you write a big syst\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1c"},
}
func TestGolden(t *testing.T) {
......@@ -133,6 +137,65 @@ func TestGolden(t *testing.T) {
}
}
func TestGoldenMarshal(t *testing.T) {
tests := []struct {
name string
newHash func() hash.Hash
gold []sha256Test
}{
{"256", New, golden},
{"224", New224, golden224},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
for _, g := range tt.gold {
h := tt.newHash()
h2 := tt.newHash()
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfState {
t.Errorf("sha%s(%q) state = %q, want %q", tt.name, g.in, state, g.halfState)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if actual, actual2 := h.Sum(nil), h2.Sum(nil); !bytes.Equal(actual, actual2) {
t.Errorf("sha%s(%q) = 0x%x != marshaled 0x%x", tt.name, g.in, actual, actual2)
}
}
})
}
}
func TestMarshalTypeMismatch(t *testing.T) {
h1 := New()
h2 := New224()
state1, err := h1.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state1); err == nil {
t.Errorf("no error when one was expected")
}
}
func TestSize(t *testing.T) {
c := New()
if got := c.Size(); got != Size {
......
src/crypto/sha512/sha512.go
View file @ 731b6321
......@@ -8,6 +8,7 @@ package sha512
import (
"crypto"
"errors"
"hash"
)
......@@ -124,6 +125,92 @@ func (d *digest) Reset() {
d.len = 0
}
const (
magic384 = "sha\x04"
magic512_224 = "sha\x05"
magic512_256 = "sha\x06"
magic512 = "sha\x07"
marshaledSize = len(magic512) + 8*8 + chunk + 8
)
func (d *digest) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize)
switch d.function {
case crypto.SHA384:
b = append(b, magic384...)
case crypto.SHA512_224:
b = append(b, magic512_224...)
case crypto.SHA512_256:
b = append(b, magic512_256...)
case crypto.SHA512:
b = append(b, magic512...)
default:
return nil, errors.New("crypto/sha512: invalid hash function")
}
b = appendUint64(b, d.h[0])
b = appendUint64(b, d.h[1])
b = appendUint64(b, d.h[2])
b = appendUint64(b, d.h[3])
b = appendUint64(b, d.h[4])
b = appendUint64(b, d.h[5])
b = appendUint64(b, d.h[6])
b = appendUint64(b, d.h[7])
b = append(b, d.x[:]...)
b = appendUint64(b, d.len)
return b, nil
}
func (d *digest) UnmarshalBinary(b []byte) error {
if len(b) < len(magic512) {
return errors.New("crypto/sha512: invalid hash state identifier")
}
switch {
case d.function == crypto.SHA384 && string(b[:len(magic384)]) == magic384:
case d.function == crypto.SHA512_224 && string(b[:len(magic512_224)]) == magic512_224:
case d.function == crypto.SHA512_256 && string(b[:len(magic512_256)]) == magic512_256:
case d.function == crypto.SHA512 && string(b[:len(magic512)]) == magic512:
default:
return errors.New("crypto/sha512: invalid hash state identifier")
}
if len(b) != marshaledSize {
return errors.New("crypto/sha512: invalid hash state size")
}
b = b[len(magic512):]
b, d.h[0] = consumeUint64(b)
b, d.h[1] = consumeUint64(b)
b, d.h[2] = consumeUint64(b)
b, d.h[3] = consumeUint64(b)
b, d.h[4] = consumeUint64(b)
b, d.h[5] = consumeUint64(b)
b, d.h[6] = consumeUint64(b)
b, d.h[7] = consumeUint64(b)
b = b[copy(d.x[:], b):]
b, d.len = consumeUint64(b)
d.nx = int(d.len) % chunk
return nil
}
func appendUint64(b []byte, x uint64) []byte {
a := [8]byte{
byte(x >> 56),
byte(x >> 48),
byte(x >> 40),
byte(x >> 32),
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func consumeUint64(b []byte) ([]byte, uint64) {
_ = b[7]
x := uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
return b[8:], x
}
// New returns a new hash.Hash computing the SHA-512 checksum.
func New() hash.Hash {
d := &digest{function: crypto.SHA512}
......
src/crypto/sha512/sha512_test.go
View file @ 731b6321
This source diff could not be displayed because it is too large. You can view the blob instead.
src/hash/adler32/adler32.go
View file @ 731b6321
......@@ -12,7 +12,10 @@
// significant-byte first (network) order.
package adler32
import "hash"
import (
"errors"
"hash"
)
const (
// mod is the largest prime that is less than 65536.
......@@ -44,6 +47,44 @@ func (d *digest) Size() int { return Size }
func (d *digest) BlockSize() int { return 4 }
const (
magic = "adl\x01"
marshaledSize = len(magic) + 4
)
func (d *digest) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize)
b = append(b, magic...)
b = appendUint32(b, uint32(*d))
return b, nil
}
func (d *digest) UnmarshalBinary(b []byte) error {
if len(b) < len(magic) || string(b[:len(magic)]) != magic {
return errors.New("hash/adler32: invalid hash state identifier")
}
if len(b) != marshaledSize {
return errors.New("hash/adler32: invalid hash state size")
}
*d = digest(readUint32(b[len(magic):]))
return nil
}
func appendUint32(b []byte, x uint32) []byte {
a := [4]byte{
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func readUint32(b []byte) uint32 {
_ = b[3]
return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
}
// Add p to the running checksum d.
func update(d digest, p []byte) digest {
s1, s2 := uint32(d&0xffff), uint32(d>>16)
......
src/hash/adler32/adler32_test.go
View file @ 731b6321
......@@ -5,57 +5,60 @@
package adler32
import (
"encoding"
"io"
"strings"
"testing"
)
var golden = []struct {
out uint32
in string
out uint32
in string
halfState string // marshaled hash state after first half of in written, used by TestGoldenMarshal
}{
{0x00000001, ""},
{0x00620062, "a"},
{0x012600c4, "ab"},
{0x024d0127, "abc"},
{0x03d8018b, "abcd"},
{0x05c801f0, "abcde"},
{0x081e0256, "abcdef"},
{0x0adb02bd, "abcdefg"},
{0x0e000325, "abcdefgh"},
{0x118e038e, "abcdefghi"},
{0x158603f8, "abcdefghij"},
{0x3f090f02, "Discard medicine more than two years old."},
{0x46d81477, "He who has a shady past knows that nice guys finish last."},
{0x40ee0ee1, "I wouldn't marry him with a ten foot pole."},
{0x16661315, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
{0x5b2e1480, "The days of the digital watch are numbered. -Tom Stoppard"},
{0x8c3c09ea, "Nepal premier won't resign."},
{0x45ac18fd, "For every action there is an equal and opposite government program."},
{0x53c61462, "His money is twice tainted: 'taint yours and 'taint mine."},
{0x7e511e63, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
{0xe4801a6a, "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
{0x61b507df, "size: a.out: bad magic"},
{0xb8631171, "The major problem is with sendmail. -Mark Horton"},
{0x8b5e1904, "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
{0x7cc6102b, "If the enemy is within range, then so are you."},
{0x700318e7, "It's well we cannot hear the screams/That we create in others' dreams."},
{0x1e601747, "You remind me of a TV show, but that's all right: I watch it anyway."},
{0xb55b0b09, "C is as portable as Stonehedge!!"},
{0x39111dd0, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
{0x91dd304f, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
{0x2e5d1316, "How can you write a big system without C++? -Paul Glick"},
{0xd0201df6, "'Invariant assertions' is the most elegant programming technique! -Tom Szymanski"},
{0x211297c8, strings.Repeat("\xff", 5548) + "8"},
{0xbaa198c8, strings.Repeat("\xff", 5549) + "9"},
{0x553499be, strings.Repeat("\xff", 5550) + "0"},
{0xf0c19abe, strings.Repeat("\xff", 5551) + "1"},
{0x8d5c9bbe, strings.Repeat("\xff", 5552) + "2"},
{0x2af69cbe, strings.Repeat("\xff", 5553) + "3"},
{0xc9809dbe, strings.Repeat("\xff", 5554) + "4"},
{0x69189ebe, strings.Repeat("\xff", 5555) + "5"},
{0x86af0001, strings.Repeat("\x00", 1e5)},
{0x79660b4d, strings.Repeat("a", 1e5)},
{0x110588ee, strings.Repeat("ABCDEFGHIJKLMNOPQRSTUVWXYZ", 1e4)},
{0x00000001, "", "adl\x01\x00\x00\x00\x01"},
{0x00620062, "a", "adl\x01\x00\x00\x00\x01"},
{0x012600c4, "ab", "adl\x01\x00b\x00b"},
{0x024d0127, "abc", "adl\x01\x00b\x00b"},
{0x03d8018b, "abcd", "adl\x01\x01&\x00\xc4"},
{0x05c801f0, "abcde", "adl\x01\x01&\x00\xc4"},
{0x081e0256, "abcdef", "adl\x01\x02M\x01'"},
{0x0adb02bd, "abcdefg", "adl\x01\x02M\x01'"},
{0x0e000325, "abcdefgh", "adl\x01\x03\xd8\x01\x8b"},
{0x118e038e, "abcdefghi", "adl\x01\x03\xd8\x01\x8b"},
{0x158603f8, "abcdefghij", "adl\x01\x05\xc8\x01\xf0"},
{0x3f090f02, "Discard medicine more than two years old.", "adl\x01NU\a\x87"},
{0x46d81477, "He who has a shady past knows that nice guys finish last.", "adl\x01\x89\x8e\t\xe9"},
{0x40ee0ee1, "I wouldn't marry him with a ten foot pole.", "adl\x01R\t\ag"},
{0x16661315, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave", "adl\x01\u007f\xbb\t\x10"},
{0x5b2e1480, "The days of the digital watch are numbered. -Tom Stoppard", "adl\x01\x99:\n~"},
{0x8c3c09ea, "Nepal premier won't resign.", "adl\x01\"\x05\x05\x05"},
{0x45ac18fd, "For every action there is an equal and opposite government program.", "adl\x01\xcc\xfa\f\x00"},
{0x53c61462, "His money is twice tainted: 'taint yours and 'taint mine.", "adl\x01\x93\xa9\n\b"},
{0x7e511e63, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977", "adl\x01e\xf5\x10\x14"},
{0xe4801a6a, "It's a tiny change to the code and not completely disgusting. - Bob Manchek", "adl\x01\xee\x00\f\xb2"},
{0x61b507df, "size: a.out: bad magic", "adl\x01\x1a\xfc\x04\x1d"},
{0xb8631171, "The major problem is with sendmail. -Mark Horton", "adl\x01mi\b\xdc"},
{0x8b5e1904, "Give me a rock, paper and scissors and I will move the world. CCFestoon", "adl\x01\xe3\n\f\x9f"},
{0x7cc6102b, "If the enemy is within range, then so are you.", "adl\x01_\xe0\b\x1e"},
{0x700318e7, "It's well we cannot hear the screams/That we create in others' dreams.", "adl\x01ۘ\f\x87"},
{0x1e601747, "You remind me of a TV show, but that's all right: I watch it anyway.", "adl\x01\xcc}\v\x83"},
{0xb55b0b09, "C is as portable as Stonehedge!!", "adl\x01,^\x05\xad"},
{0x39111dd0, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley", "adl\x01M\xd1\x0e\xc8"},
{0x91dd304f, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule", "adl\x01#\xd8\x17\xd7"},
{0x2e5d1316, "How can you write a big system without C++? -Paul Glick", "adl\x01\x8fU\n\x0f"},
{0xd0201df6, "'Invariant assertions' is the most elegant programming technique! -Tom Szymanski", "adl\x01/\x98\x0e\xc4"},
{0x211297c8, strings.Repeat("\xff", 5548) + "8", "adl\x01\x9a\xa6\xcb\xc1"},
{0xbaa198c8, strings.Repeat("\xff", 5549) + "9", "adl\x01gu\xcc\xc0"},
{0x553499be, strings.Repeat("\xff", 5550) + "0", "adl\x01gu\xcc\xc0"},
{0xf0c19abe, strings.Repeat("\xff", 5551) + "1", "adl\x015CͿ"},
{0x8d5c9bbe, strings.Repeat("\xff", 5552) + "2", "adl\x015CͿ"},
{0x2af69cbe, strings.Repeat("\xff", 5553) + "3", "adl\x01\x04\x10ξ"},
{0xc9809dbe, strings.Repeat("\xff", 5554) + "4", "adl\x01\x04\x10ξ"},
{0x69189ebe, strings.Repeat("\xff", 5555) + "5", "adl\x01\xd3\xcdϽ"},
{0x86af0001, strings.Repeat("\x00", 1e5), "adl\x01\xc3P\x00\x01"},
{0x79660b4d, strings.Repeat("a", 1e5), "adl\x01\x81k\x05\xa7"},
{0x110588ee, strings.Repeat("ABCDEFGHIJKLMNOPQRSTUVWXYZ", 1e4), "adl\x01e\xd2\xc4p"},
}
// checksum is a slow but simple implementation of the Adler-32 checksum.
......@@ -87,6 +90,38 @@ func TestGolden(t *testing.T) {
}
}
func TestGoldenMarshal(t *testing.T) {
for _, g := range golden {
h := New()
h2 := New()
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfState {
t.Errorf("checksum(%q) state = %q, want %q", g.in, state, g.halfState)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if h.Sum32() != h2.Sum32() {
t.Errorf("checksum(%q) = 0x%x != marshaled (0x%x)", g.in, h.Sum32(), h2.Sum32())
}
}
}
func BenchmarkAdler32KB(b *testing.B) {
b.SetBytes(1024)
data := make([]byte, 1024)
......
src/hash/crc32/crc32.go
View file @ 731b6321
......@@ -13,6 +13,7 @@
package crc32
import (
"errors"
"hash"
"sync"
)
......@@ -159,6 +160,48 @@ func (d *digest) BlockSize() int { return 1 }
func (d *digest) Reset() { d.crc = 0 }
const (
magic = "crc\x01"
marshaledSize = len(magic) + 4 + 4
)
func (d *digest) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize)
b = append(b, magic...)
b = appendUint32(b, tableSum(d.tab))
b = appendUint32(b, d.crc)
return b, nil
}
func (d *digest) UnmarshalBinary(b []byte) error {
if len(b) < len(magic) || string(b[:len(magic)]) != magic {
return errors.New("hash/crc32: invalid hash state identifier")
}
if len(b) != marshaledSize {
return errors.New("hash/crc32: invalid hash state size")
}
if tableSum(d.tab) != readUint32(b[4:]) {
return errors.New("hash/crc32: tables do not match")
}
d.crc = readUint32(b[8:])
return nil
}
func appendUint32(b []byte, x uint32) []byte {
a := [4]byte{
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func readUint32(b []byte) uint32 {
_ = b[3]
return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
}
// Update returns the result of adding the bytes in p to the crc.
func Update(crc uint32, tab *Table, p []byte) uint32 {
switch tab {
......@@ -205,3 +248,15 @@ func ChecksumIEEE(data []byte) uint32 {
ieeeOnce.Do(ieeeInit)
return updateIEEE(0, data)
}
// tableSum returns the IEEE checksum of table t.
func tableSum(t *Table) uint32 {
var a [1024]byte
b := a[:0]
if t != nil {
for _, x := range t {
b = appendUint32(b, x)
}
}
return ChecksumIEEE(b)
}
src/hash/crc32/crc32_test.go
View file @ 731b6321
......@@ -5,49 +5,53 @@
package crc32
import (
"encoding"
"fmt"
"hash"
"io"
"math/rand"
"testing"
)
type test struct {
ieee, castagnoli uint32
in string
ieee, castagnoli uint32
in string
halfStateIEEE string // IEEE marshaled hash state after first half of in written, used by TestGoldenMarshal
halfStateCastagnoli string // Castagnoli marshaled hash state after first half of in written, used by TestGoldenMarshal
}
var golden = []test{
{0x0, 0x0, ""},
{0xe8b7be43, 0xc1d04330, "a"},
{0x9e83486d, 0xe2a22936, "ab"},
{0x352441c2, 0x364b3fb7, "abc"},
{0xed82cd11, 0x92c80a31, "abcd"},
{0x8587d865, 0xc450d697, "abcde"},
{0x4b8e39ef, 0x53bceff1, "abcdef"},
{0x312a6aa6, 0xe627f441, "abcdefg"},
{0xaeef2a50, 0xa9421b7, "abcdefgh"},
{0x8da988af, 0x2ddc99fc, "abcdefghi"},
{0x3981703a, 0xe6599437, "abcdefghij"},
{0x6b9cdfe7, 0xb2cc01fe, "Discard medicine more than two years old."},
{0xc90ef73f, 0xe28207f, "He who has a shady past knows that nice guys finish last."},
{0xb902341f, 0xbe93f964, "I wouldn't marry him with a ten foot pole."},
{0x42080e8, 0x9e3be0c3, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
{0x154c6d11, 0xf505ef04, "The days of the digital watch are numbered. -Tom Stoppard"},
{0x4c418325, 0x85d3dc82, "Nepal premier won't resign."},
{0x33955150, 0xc5142380, "For every action there is an equal and opposite government program."},
{0x26216a4b, 0x75eb77dd, "His money is twice tainted: 'taint yours and 'taint mine."},
{0x1abbe45e, 0x91ebe9f7, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
{0xc89a94f7, 0xf0b1168e, "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
{0xab3abe14, 0x572b74e2, "size: a.out: bad magic"},
{0xbab102b6, 0x8a58a6d5, "The major problem is with sendmail. -Mark Horton"},
{0x999149d7, 0x9c426c50, "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
{0x6d52a33c, 0x735400a4, "If the enemy is within range, then so are you."},
{0x90631e8d, 0xbec49c95, "It's well we cannot hear the screams/That we create in others' dreams."},
{0x78309130, 0xa95a2079, "You remind me of a TV show, but that's all right: I watch it anyway."},
{0x7d0a377f, 0xde2e65c5, "C is as portable as Stonehedge!!"},
{0x8c79fd79, 0x297a88ed, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
{0xa20b7167, 0x66ed1d8b, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
{0x8e0bb443, 0xdcded527, "How can you write a big system without C++? -Paul Glick"},
{0x0, 0x0, "", "crc\x01ʇ\x91M\x00\x00\x00\x00", "crc\x01wB\x84\x81\x00\x00\x00\x00"},
{0xe8b7be43, 0xc1d04330, "a", "crc\x01ʇ\x91M\x00\x00\x00\x00", "crc\x01wB\x84\x81\x00\x00\x00\x00"},
{0x9e83486d, 0xe2a22936, "ab", "crc\x01ʇ\x91M跾C", "crc\x01wB\x84\x81\xc1\xd0C0"},
{0x352441c2, 0x364b3fb7, "abc", "crc\x01ʇ\x91M跾C", "crc\x01wB\x84\x81\xc1\xd0C0"},
{0xed82cd11, 0x92c80a31, "abcd", "crc\x01ʇ\x91M\x9e\x83Hm", "crc\x01wB\x84\x81\xe2\xa2)6"},
{0x8587d865, 0xc450d697, "abcde", "crc\x01ʇ\x91M\x9e\x83Hm", "crc\x01wB\x84\x81\xe2\xa2)6"},
{0x4b8e39ef, 0x53bceff1, "abcdef", "crc\x01ʇ\x91M5$A\xc2", "crc\x01wB\x84\x816K?\xb7"},
{0x312a6aa6, 0xe627f441, "abcdefg", "crc\x01ʇ\x91M5$A\xc2", "crc\x01wB\x84\x816K?\xb7"},
{0xaeef2a50, 0xa9421b7, "abcdefgh", "crc\x01ʇ\x91M\xed\x82\xcd\x11", "crc\x01wB\x84\x81\x92\xc8\n1"},
{0x8da988af, 0x2ddc99fc, "abcdefghi", "crc\x01ʇ\x91M\xed\x82\xcd\x11", "crc\x01wB\x84\x81\x92\xc8\n1"},
{0x3981703a, 0xe6599437, "abcdefghij", "crc\x01ʇ\x91M\x85\x87\xd8e", "crc\x01wB\x84\x81\xc4P֗"},
{0x6b9cdfe7, 0xb2cc01fe, "Discard medicine more than two years old.", "crc\x01ʇ\x91M\xfd\xe5\xc2J", "crc\x01wB\x84\x81S\"(\xe0"},
{0xc90ef73f, 0xe28207f, "He who has a shady past knows that nice guys finish last.", "crc\x01ʇ\x91M\x01Nj+", "crc\x01wB\x84\x81'\xdaR\x15"},
{0xb902341f, 0xbe93f964, "I wouldn't marry him with a ten foot pole.", "crc\x01ʇ\x91M\x9d\x13\xce\x10", "crc\x01wB\x84\x81\xc3\xed\xabG"},
{0x42080e8, 0x9e3be0c3, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave", "crc\x01ʇ\x91M-\xed\xf7\x94", "crc\x01wB\x84\x81\xce\xceb\x81"},
{0x154c6d11, 0xf505ef04, "The days of the digital watch are numbered. -Tom Stoppard", "crc\x01ʇ\x91MOa\xa5\r", "crc\x01wB\x84\x81\xd3s\x9dP"},
{0x4c418325, 0x85d3dc82, "Nepal premier won't resign.", "crc\x01ʇ\x91M\xa8S9\x85", "crc\x01wB\x84\x81{\x90\x8a\x14"},
{0x33955150, 0xc5142380, "For every action there is an equal and opposite government program.", "crc\x01ʇ\x91Ma\xe9>\x86", "crc\x01wB\x84\x81\xaa@\xc4\x1c"},
{0x26216a4b, 0x75eb77dd, "His money is twice tainted: 'taint yours and 'taint mine.", "crc\x01ʇ\x91M\\\x1an\x88", "crc\x01wB\x84\x81W\a8Z"},
{0x1abbe45e, 0x91ebe9f7, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977", "crc\x01ʇ\x91M\xb7\xf5\xf2\xca", "crc\x01wB\x84\x81\xc4o\x9d\x85"},
{0xc89a94f7, 0xf0b1168e, "It's a tiny change to the code and not completely disgusting. - Bob Manchek", "crc\x01ʇ\x91M\x84g1\xe8", "crc\x01wB\x84\x81#\x98\f\xab"},
{0xab3abe14, 0x572b74e2, "size: a.out: bad magic", "crc\x01ʇ\x91M\x8a\x0f\xad\b", "crc\x01wB\x84\x81\x80\xc9n\xd8"},
{0xbab102b6, 0x8a58a6d5, "The major problem is with sendmail. -Mark Horton", "crc\x01ʇ\x91M\a\xf0\xb3\x15", "crc\x01wB\x84\x81liS\xcc"},
{0x999149d7, 0x9c426c50, "Give me a rock, paper and scissors and I will move the world. CCFestoon", "crc\x01ʇ\x91M\x0fa\xbc.", "crc\x01wB\x84\x81\xdb͏C"},
{0x6d52a33c, 0x735400a4, "If the enemy is within range, then so are you.", "crc\x01ʇ\x91My\x1b\x99\xf8", "crc\x01wB\x84\x81\xaaB\x037"},
{0x90631e8d, 0xbec49c95, "It's well we cannot hear the screams/That we create in others' dreams.", "crc\x01ʇ\x91M\bqfY", "crc\x01wB\x84\x81\x16y\xa1\xd2"},
{0x78309130, 0xa95a2079, "You remind me of a TV show, but that's all right: I watch it anyway.", "crc\x01ʇ\x91M\xbdO,\xc2", "crc\x01wB\x84\x81f&\xc5\xe4"},
{0x7d0a377f, 0xde2e65c5, "C is as portable as Stonehedge!!", "crc\x01ʇ\x91M\xf7\xd6\x00\xd5", "crc\x01wB\x84\x81de\\\xf8"},
{0x8c79fd79, 0x297a88ed, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley", "crc\x01ʇ\x91Ml+\xb8\xa7", "crc\x01wB\x84\x81\xbf\xd6S\xdd"},
{0xa20b7167, 0x66ed1d8b, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule", "crc\x01ʇ\x91M<lR[", "crc\x01wB\x84\x81{\xaco\xb1"},
{0x8e0bb443, 0xdcded527, "How can you write a big system without C++? -Paul Glick", "crc\x01ʇ\x91M\x0e\x88\x89\xed", "crc\x01wB\x84\x813\xd7C\u007f"},
}
// testGoldenIEEE verifies that the given function returns
......@@ -105,6 +109,86 @@ func TestSimple(t *testing.T) {
})
}
func TestGoldenMarshal(t *testing.T) {
t.Run("IEEE", func(t *testing.T) {
for _, g := range golden {
h := New(IEEETable)
h2 := New(IEEETable)
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfStateIEEE {
t.Errorf("IEEE(%q) state = %q, want %q", g.in, state, g.halfStateIEEE)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if h.Sum32() != h2.Sum32() {
t.Errorf("IEEE(%s) = 0x%x != marshaled 0x%x", g.in, h.Sum32(), h2.Sum32())
}
}
})
t.Run("Castagnoli", func(t *testing.T) {
table := MakeTable(Castagnoli)
for _, g := range golden {
h := New(table)
h2 := New(table)
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfStateCastagnoli {
t.Errorf("Castagnoli(%q) state = %q, want %q", g.in, state, g.halfStateCastagnoli)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if h.Sum32() != h2.Sum32() {
t.Errorf("Castagnoli(%s) = 0x%x != marshaled 0x%x", g.in, h.Sum32(), h2.Sum32())
}
}
})
}
func TestMarshalTableMismatch(t *testing.T) {
h1 := New(IEEETable)
h2 := New(MakeTable(Castagnoli))
state1, err := h1.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state1); err == nil {
t.Errorf("no error when one was expected")
}
}
// TestSimple tests the slicing-by-8 algorithm.
func TestSlicing(t *testing.T) {
tab := slicingMakeTable(IEEE)
......
src/hash/crc64/crc64.go
View file @ 731b6321
......@@ -7,7 +7,10 @@
// information.
package crc64
import "hash"
import (
"errors"
"hash"
)
// The size of a CRC-64 checksum in bytes.
const Size = 8
......@@ -88,6 +91,53 @@ func (d *digest) BlockSize() int { return 1 }
func (d *digest) Reset() { d.crc = 0 }
const (
magic = "crc\x02"
marshaledSize = len(magic) + 8 + 8
)
func (d *digest) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize)
b = append(b, magic...)
b = appendUint64(b, tableSum(d.tab))
b = appendUint64(b, d.crc)
return b, nil
}
func (d *digest) UnmarshalBinary(b []byte) error {
if len(b) < len(magic) || string(b[:len(magic)]) != magic {
return errors.New("hash/crc64: invalid hash state identifier")
}
if len(b) != marshaledSize {
return errors.New("hash/crc64: invalid hash state size")
}
if tableSum(d.tab) != readUint64(b[4:]) {
return errors.New("hash/crc64: tables do not match")
}
d.crc = readUint64(b[12:])
return nil
}
func appendUint64(b []byte, x uint64) []byte {
a := [8]byte{
byte(x >> 56),
byte(x >> 48),
byte(x >> 40),
byte(x >> 32),
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func readUint64(b []byte) uint64 {
_ = b[7]
return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
}
func update(crc uint64, tab *Table, p []byte) uint64 {
crc = ^crc
// Table comparison is somewhat expensive, so avoid it for small sizes
......@@ -145,3 +195,15 @@ func (d *digest) Sum(in []byte) []byte {
// Checksum returns the CRC-64 checksum of data
// using the polynomial represented by the Table.
func Checksum(data []byte, tab *Table) uint64 { return update(0, tab, data) }
// tableSum returns the ISO checksum of table t.
func tableSum(t *Table) uint64 {
var a [2048]byte
b := a[:0]
if t != nil {
for _, x := range t {
b = appendUint64(b, x)
}
}
return Checksum(b, MakeTable(ISO))
}
src/hash/crc64/crc64_test.go
View file @ 731b6321
......@@ -5,49 +5,52 @@
package crc64
import (
"encoding"
"io"
"testing"
)
type test struct {
outISO uint64
outECMA uint64
in string
outISO uint64
outECMA uint64
in string
halfStateISO string // ISO marshaled hash state after first half of in written, used by TestGoldenMarshal
halfStateECMA string // ECMA marshaled hash state after first half of in written, used by TestGoldenMarshal
}
var golden = []test{
{0x0, 0x0, ""},
{0x3420000000000000, 0x330284772e652b05, "a"},
{0x36c4200000000000, 0xbc6573200e84b046, "ab"},
{0x3776c42000000000, 0x2cd8094a1a277627, "abc"},
{0x336776c420000000, 0x3c9d28596e5960ba, "abcd"},
{0x32d36776c4200000, 0x40bdf58fb0895f2, "abcde"},
{0x3002d36776c42000, 0xd08e9f8545a700f4, "abcdef"},
{0x31b002d36776c420, 0xec20a3a8cc710e66, "abcdefg"},
{0xe21b002d36776c4, 0x67b4f30a647a0c59, "abcdefgh"},
{0x8b6e21b002d36776, 0x9966f6c89d56ef8e, "abcdefghi"},
{0x7f5b6e21b002d367, 0x32093a2ecd5773f4, "abcdefghij"},
{0x8ec0e7c835bf9cdf, 0x8a0825223ea6d221, "Discard medicine more than two years old."},
{0xc7db1759e2be5ab4, 0x8562c0ac2ab9a00d, "He who has a shady past knows that nice guys finish last."},
{0xfbf9d9603a6fa020, 0x3ee2a39c083f38b4, "I wouldn't marry him with a ten foot pole."},
{0xeafc4211a6daa0ef, 0x1f603830353e518a, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
{0x3e05b21c7a4dc4da, 0x2fd681d7b2421fd, "The days of the digital watch are numbered. -Tom Stoppard"},
{0x5255866ad6ef28a6, 0x790ef2b16a745a41, "Nepal premier won't resign."},
{0x8a79895be1e9c361, 0x3ef8f06daccdcddf, "For every action there is an equal and opposite government program."},
{0x8878963a649d4916, 0x49e41b2660b106d, "His money is twice tainted: 'taint yours and 'taint mine."},
{0xa7b9d53ea87eb82f, 0x561cc0cfa235ac68, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
{0xdb6805c0966a2f9c, 0xd4fe9ef082e69f59, "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
{0xf3553c65dacdadd2, 0xe3b5e46cd8d63a4d, "size: a.out: bad magic"},
{0x9d5e034087a676b9, 0x865aaf6b94f2a051, "The major problem is with sendmail. -Mark Horton"},
{0xa6db2d7f8da96417, 0x7eca10d2f8136eb4, "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
{0x325e00cd2fe819f9, 0xd7dd118c98e98727, "If the enemy is within range, then so are you."},
{0x88c6600ce58ae4c6, 0x70fb33c119c29318, "It's well we cannot hear the screams/That we create in others' dreams."},
{0x28c4a3f3b769e078, 0x57c891e39a97d9b7, "You remind me of a TV show, but that's all right: I watch it anyway."},
{0xa698a34c9d9f1dca, 0xa1f46ba20ad06eb7, "C is as portable as Stonehedge!!"},
{0xf6c1e2a8c26c5cfc, 0x7ad25fafa1710407, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
{0xd402559dfe9b70c, 0x73cef1666185c13f, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
{0xdb6efff26aa94946, 0xb41858f73c389602, "How can you write a big system without C++? -Paul Glick"},
{0xe7fcf1006b503b61, 0x27db187fc15bbc72, "This is a test of the emergency broadcast system."},
{0x0, 0x0, "", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\x00\x00\x00\x00\x00\x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee\x00\x00\x00\x00\x00\x00\x00\x00"},
{0x3420000000000000, 0x330284772e652b05, "a", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\x00\x00\x00\x00\x00\x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee\x00\x00\x00\x00\x00\x00\x00\x00"},
{0x36c4200000000000, 0xbc6573200e84b046, "ab", "crc\x02s\xba\x84\x84\xbb\xcd]\xef4 \x00\x00\x00\x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee3\x02\x84w.e+\x05"},
{0x3776c42000000000, 0x2cd8094a1a277627, "abc", "crc\x02s\xba\x84\x84\xbb\xcd]\xef4 \x00\x00\x00\x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee3\x02\x84w.e+\x05"},
{0x336776c420000000, 0x3c9d28596e5960ba, "abcd", "crc\x02s\xba\x84\x84\xbb\xcd]\xef6\xc4 \x00\x00\x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee\xbces \x0e\x84\xb0F"},
{0x32d36776c4200000, 0x40bdf58fb0895f2, "abcde", "crc\x02s\xba\x84\x84\xbb\xcd]\xef6\xc4 \x00\x00\x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee\xbces \x0e\x84\xb0F"},
{0x3002d36776c42000, 0xd08e9f8545a700f4, "abcdef", "crc\x02s\xba\x84\x84\xbb\xcd]\xef7v\xc4 \x00\x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee,\xd8\tJ\x1a'v'"},
{0x31b002d36776c420, 0xec20a3a8cc710e66, "abcdefg", "crc\x02s\xba\x84\x84\xbb\xcd]\xef7v\xc4 \x00\x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee,\xd8\tJ\x1a'v'"},
{0xe21b002d36776c4, 0x67b4f30a647a0c59, "abcdefgh", "crc\x02s\xba\x84\x84\xbb\xcd]\xef3gv\xc4 \x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee<\x9d(YnY`\xba"},
{0x8b6e21b002d36776, 0x9966f6c89d56ef8e, "abcdefghi", "crc\x02s\xba\x84\x84\xbb\xcd]\xef3gv\xc4 \x00\x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee<\x9d(YnY`\xba"},
{0x7f5b6e21b002d367, 0x32093a2ecd5773f4, "abcdefghij", "crc\x02s\xba\x84\x84\xbb\xcd]\xef2\xd3gv\xc4 \x00\x00", "crc\x02`&\x9aR\xe1\xb7\xfee\x04\v\xdfX\xfb\b\x95\xf2"},
{0x8ec0e7c835bf9cdf, 0x8a0825223ea6d221, "Discard medicine more than two years old.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\xc6\xc0\f\xac'\x11\x12\xd5", "crc\x02`&\x9aR\xe1\xb7\xfee\xfd%\xc0&\xa0R\xef\x95"},
{0xc7db1759e2be5ab4, 0x8562c0ac2ab9a00d, "He who has a shady past knows that nice guys finish last.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\t\xcb\xd15X[r\t", "crc\x02`&\x9aR\xe1\xb7\xfee\a\x02\xe8|+\xc1\x06\xe3"},
{0xfbf9d9603a6fa020, 0x3ee2a39c083f38b4, "I wouldn't marry him with a ten foot pole.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\x19\xc8d\xbe\x84\x14\x87_", "crc\x02`&\x9aR\xe1\xb7\xfee˷\xd3\xeeG\xdcE\x8c"},
{0xeafc4211a6daa0ef, 0x1f603830353e518a, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\xad\x1b*\xc0\xb1\xf3i(", "crc\x02`&\x9aR\xe1\xb7\xfee\xa7\x8a\xdb\xf6\xd2R\t\x96"},
{0x3e05b21c7a4dc4da, 0x2fd681d7b2421fd, "The days of the digital watch are numbered. -Tom Stoppard", "crc\x02s\xba\x84\x84\xbb\xcd]\xefv78\x1ak\x02\x8f\xff", "crc\x02`&\x9aR\xe1\xb7\xfeeT\xcbl\x10\xfb\x87K*"},
{0x5255866ad6ef28a6, 0x790ef2b16a745a41, "Nepal premier won't resign.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\xcbf\x11R\xbfh\xde\xc9", "crc\x02`&\x9aR\xe1\xb7\xfee6\x13ُ\x06_\xbd\x9a"},
{0x8a79895be1e9c361, 0x3ef8f06daccdcddf, "For every action there is an equal and opposite government program.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\xf3pV\x01c_Wu", "crc\x02`&\x9aR\xe1\xb7\xfee\xe7\xc6\n\b\x12FL\xa0"},
{0x8878963a649d4916, 0x49e41b2660b106d, "His money is twice tainted: 'taint yours and 'taint mine.", "crc\x02s\xba\x84\x84\xbb\xcd]\xefñ\xff\xf1\xe0/Δ", "crc\x02`&\x9aR\xe1\xb7\xfeeOL/\xb1\xec\xa2\x14\x87"},
{0xa7b9d53ea87eb82f, 0x561cc0cfa235ac68, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977", "crc\x02s\xba\x84\x84\xbb\xcd]\xefݸa\xe1\xb5\xf8\xb9W", "crc\x02`&\x9aR\xe1\xb7\xfee\x87)GQ\x03\xf4K\t"},
{0xdb6805c0966a2f9c, 0xd4fe9ef082e69f59, "It's a tiny change to the code and not completely disgusting. - Bob Manchek", "crc\x02s\xba\x84\x84\xbb\xcd]\xefV\xba\x12\x91\x81\x1fNU", "crc\x02`&\x9aR\xe1\xb7\xfee\n\xb8\x81v?\xdeL\xcb"},
{0xf3553c65dacdadd2, 0xe3b5e46cd8d63a4d, "size: a.out: bad magic", "crc\x02s\xba\x84\x84\xbb\xcd]\xefG\xad\xbc\xb2\xa8y\xc9\xdc", "crc\x02`&\x9aR\xe1\xb7\xfee\xcc\xce\xe5\xe6\x89p\x01\xb8"},
{0x9d5e034087a676b9, 0x865aaf6b94f2a051, "The major problem is with sendmail. -Mark Horton", "crc\x02s\xba\x84\x84\xbb\xcd]\uf8acn\x8aT;&\xd5", "crc\x02`&\x9aR\xe1\xb7\xfeeFf\x9c\x1f\xc9x\xbfa"},
{0xa6db2d7f8da96417, 0x7eca10d2f8136eb4, "Give me a rock, paper and scissors and I will move the world. CCFestoon", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\xeb\x18\xbf\xf9}\x91\xe5|", "crc\x02`&\x9aR\xe1\xb7\xfeea\x9e\x05:\xce[\xe7\x19"},
{0x325e00cd2fe819f9, 0xd7dd118c98e98727, "If the enemy is within range, then so are you.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef^5k\xd0Aj_{", "crc\x02`&\x9aR\xe1\xb7\xfee\v#\x99\xa8r\x83YR"},
{0x88c6600ce58ae4c6, 0x70fb33c119c29318, "It's well we cannot hear the screams/That we create in others' dreams.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef|\xb5\x02\xdcw\x18/\x86", "crc\x02`&\x9aR\xe1\xb7\xfee]\x9d-\xed\x8c\xf9r9"},
{0x28c4a3f3b769e078, 0x57c891e39a97d9b7, "You remind me of a TV show, but that's all right: I watch it anyway.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\x03\x8bd\x1c\xb0_\x16\x98", "crc\x02`&\x9aR\xe1\xb7\xfee\xafW\x98\xaa\"\xe7\xd7|"},
{0xa698a34c9d9f1dca, 0xa1f46ba20ad06eb7, "C is as portable as Stonehedge!!", "crc\x02s\xba\x84\x84\xbb\xcd]\xef.P\xe1I\xc6pi\xdc", "crc\x02`&\x9aR\xe1\xb7\xfee֚\x06\x01(\xc0\x1e\x8b"},
{0xf6c1e2a8c26c5cfc, 0x7ad25fafa1710407, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\xf7\xa04\x8a\xf2o\xe0;", "crc\x02`&\x9aR\xe1\xb7\xfee<[\xd2%\x9em\x94\x04"},
{0xd402559dfe9b70c, 0x73cef1666185c13f, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule", "crc\x02s\xba\x84\x84\xbb\xcd]\xef\u007f\xae\xb9\xbaX=\x19v", "crc\x02`&\x9aR\xe1\xb7\xfee\xb2˦Y\xc5\xd0G\x03"},
{0xdb6efff26aa94946, 0xb41858f73c389602, "How can you write a big system without C++? -Paul Glick", "crc\x02s\xba\x84\x84\xbb\xcd]\xefa\xed$js\xb9\xa5A", "crc\x02`&\x9aR\xe1\xb7\xfeeZm\x96\x8a\xe2\xaf\x13p"},
{0xe7fcf1006b503b61, 0x27db187fc15bbc72, "This is a test of the emergency broadcast system.", "crc\x02s\xba\x84\x84\xbb\xcd]\xef}\xee[q\x16\xcb\xe4\x8d", "crc\x02`&\x9aR\xe1\xb7\xfee\xb1\x93] \xeb\xa9am"},
}
func TestGolden(t *testing.T) {
......@@ -72,6 +75,87 @@ func TestGolden(t *testing.T) {
}
}
func TestGoldenMarshal(t *testing.T) {
t.Run("ISO", func(t *testing.T) {
table := MakeTable(ISO)
for _, g := range golden {
h := New(table)
h2 := New(table)
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfStateISO {
t.Errorf("ISO crc64(%q) state = %q, want %q", g.in, state, g.halfStateISO)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if h.Sum64() != h2.Sum64() {
t.Errorf("ISO crc64(%s) = 0x%x != marshaled (0x%x)", g.in, h.Sum64(), h2.Sum64())
}
}
})
t.Run("ECMA", func(t *testing.T) {
table := MakeTable(ECMA)
for _, g := range golden {
h := New(table)
h2 := New(table)
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfStateECMA {
t.Errorf("ECMA crc64(%q) state = %q, want %q", g.in, state, g.halfStateECMA)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if h.Sum64() != h2.Sum64() {
t.Errorf("ECMA crc64(%s) = 0x%x != marshaled (0x%x)", g.in, h.Sum64(), h2.Sum64())
}
}
})
}
func TestMarshalTableMismatch(t *testing.T) {
h1 := New(MakeTable(ISO))
h2 := New(MakeTable(ECMA))
state1, err := h1.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state1); err == nil {
t.Errorf("no error when one was expected")
}
}
func bench(b *testing.B, poly uint64, size int64) {
b.SetBytes(size)
data := make([]byte, size)
......
src/hash/fnv/fnv.go
View file @ 731b6321
......@@ -9,6 +9,7 @@
package fnv
import (
"errors"
"hash"
)
......@@ -215,3 +216,163 @@ func (s *sum128a) Sum(in []byte) []byte {
byte(s[1]>>56), byte(s[1]>>48), byte(s[1]>>40), byte(s[1]>>32), byte(s[1]>>24), byte(s[1]>>16), byte(s[1]>>8), byte(s[1]),
)
}
const (
magic32 = "fnv\x01"
magic32a = "fnv\x02"
magic64 = "fnv\x03"
magic64a = "fnv\x04"
magic128 = "fnv\x05"
magic128a = "fnv\x06"
marshaledSize32 = len(magic32) + 4
marshaledSize64 = len(magic64) + 8
marshaledSize128 = len(magic128) + 8*2
)
func (s *sum32) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize32)
b = append(b, magic32...)
b = appendUint32(b, uint32(*s))
return b, nil
}
func (s *sum32a) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize32)
b = append(b, magic32a...)
b = appendUint32(b, uint32(*s))
return b, nil
}
func (s *sum64) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize64)
b = append(b, magic64...)
b = appendUint64(b, uint64(*s))
return b, nil
}
func (s *sum64a) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize64)
b = append(b, magic64a...)
b = appendUint64(b, uint64(*s))
return b, nil
}
func (s *sum128) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize128)
b = append(b, magic128...)
b = appendUint64(b, s[0])
b = appendUint64(b, s[1])
return b, nil
}
func (s *sum128a) MarshalBinary() ([]byte, error) {
b := make([]byte, 0, marshaledSize128)
b = append(b, magic128a...)
b = appendUint64(b, s[0])
b = appendUint64(b, s[1])
return b, nil
}
func (s *sum32) UnmarshalBinary(b []byte) error {
if len(b) < len(magic32) || string(b[:len(magic32)]) != magic32 {
return errors.New("hash/fnv: invalid hash state identifier")
}
if len(b) != marshaledSize32 {
return errors.New("hash/fnv: invalid hash state size")
}
*s = sum32(readUint32(b[4:]))
return nil
}
func (s *sum32a) UnmarshalBinary(b []byte) error {
if len(b) < len(magic32a) || string(b[:len(magic32a)]) != magic32a {
return errors.New("hash/fnv: invalid hash state identifier")
}
if len(b) != marshaledSize32 {
return errors.New("hash/fnv: invalid hash state size")
}
*s = sum32a(readUint32(b[4:]))
return nil
}
func (s *sum64) UnmarshalBinary(b []byte) error {
if len(b) < len(magic64) || string(b[:len(magic64)]) != magic64 {
return errors.New("hash/fnv: invalid hash state identifier")
}
if len(b) != marshaledSize64 {
return errors.New("hash/fnv: invalid hash state size")
}
*s = sum64(readUint64(b[4:]))
return nil
}
func (s *sum64a) UnmarshalBinary(b []byte) error {
if len(b) < len(magic64a) || string(b[:len(magic64a)]) != magic64a {
return errors.New("hash/fnv: invalid hash state identifier")
}
if len(b) != marshaledSize64 {
return errors.New("hash/fnv: invalid hash state size")
}
*s = sum64a(readUint64(b[4:]))
return nil
}
func (s *sum128) UnmarshalBinary(b []byte) error {
if len(b) < len(magic128) || string(b[:len(magic128)]) != magic128 {
return errors.New("hash/fnv: invalid hash state identifier")
}
if len(b) != marshaledSize128 {
return errors.New("hash/fnv: invalid hash state size")
}
s[0] = readUint64(b[4:])
s[1] = readUint64(b[12:])
return nil
}
func (s *sum128a) UnmarshalBinary(b []byte) error {
if len(b) < len(magic128a) || string(b[:len(magic128a)]) != magic128a {
return errors.New("hash/fnv: invalid hash state identifier")
}
if len(b) != marshaledSize128 {
return errors.New("hash/fnv: invalid hash state size")
}
s[0] = readUint64(b[4:])
s[1] = readUint64(b[12:])
return nil
}
func readUint32(b []byte) uint32 {
_ = b[3]
return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
}
func appendUint32(b []byte, x uint32) []byte {
a := [4]byte{
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func appendUint64(b []byte, x uint64) []byte {
a := [8]byte{
byte(x >> 56),
byte(x >> 48),
byte(x >> 40),
byte(x >> 32),
byte(x >> 24),
byte(x >> 16),
byte(x >> 8),
byte(x),
}
return append(b, a[:]...)
}
func readUint64(b []byte) uint64 {
_ = b[7]
return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
}
src/hash/fnv/fnv_test.go
View file @ 731b6321
......@@ -6,56 +6,59 @@ package fnv
import (
"bytes"
"encoding"
"encoding/binary"
"hash"
"io"
"testing"
)
type golden struct {
sum []byte
text string
out []byte
in string
halfState string // marshaled hash state after first half of in written, used by TestGoldenMarshal
}
var golden32 = []golden{
{[]byte{0x81, 0x1c, 0x9d, 0xc5}, ""},
{[]byte{0x05, 0x0c, 0x5d, 0x7e}, "a"},
{[]byte{0x70, 0x77, 0x2d, 0x38}, "ab"},
{[]byte{0x43, 0x9c, 0x2f, 0x4b}, "abc"},
{[]byte{0x81, 0x1c, 0x9d, 0xc5}, "", "fnv\x01\x81\x1c\x9d\xc5"},
{[]byte{0x05, 0x0c, 0x5d, 0x7e}, "a", "fnv\x01\x81\x1c\x9d\xc5"},
{[]byte{0x70, 0x77, 0x2d, 0x38}, "ab", "fnv\x01\x05\f]~"},
{[]byte{0x43, 0x9c, 0x2f, 0x4b}, "abc", "fnv\x01\x05\f]~"},
}
var golden32a = []golden{
{[]byte{0x81, 0x1c, 0x9d, 0xc5}, ""},
{[]byte{0xe4, 0x0c, 0x29, 0x2c}, "a"},
{[]byte{0x4d, 0x25, 0x05, 0xca}, "ab"},
{[]byte{0x1a, 0x47, 0xe9, 0x0b}, "abc"},
{[]byte{0x81, 0x1c, 0x9d, 0xc5}, "", "fnv\x02\x81\x1c\x9d\xc5"},
{[]byte{0xe4, 0x0c, 0x29, 0x2c}, "a", "fnv\x02\x81\x1c\x9d\xc5"},
{[]byte{0x4d, 0x25, 0x05, 0xca}, "ab", "fnv\x02\xe4\f),"},
{[]byte{0x1a, 0x47, 0xe9, 0x0b}, "abc", "fnv\x02\xe4\f),"},
}
var golden64 = []golden{
{[]byte{0xcb, 0xf2, 0x9c, 0xe4, 0x84, 0x22, 0x23, 0x25}, ""},
{[]byte{0xaf, 0x63, 0xbd, 0x4c, 0x86, 0x01, 0xb7, 0xbe}, "a"},
{[]byte{0x08, 0x32, 0x67, 0x07, 0xb4, 0xeb, 0x37, 0xb8}, "ab"},
{[]byte{0xd8, 0xdc, 0xca, 0x18, 0x6b, 0xaf, 0xad, 0xcb}, "abc"},
{[]byte{0xcb, 0xf2, 0x9c, 0xe4, 0x84, 0x22, 0x23, 0x25}, "", "fnv\x03\xcb\xf2\x9c\xe4\x84\"#%"},
{[]byte{0xaf, 0x63, 0xbd, 0x4c, 0x86, 0x01, 0xb7, 0xbe}, "a", "fnv\x03\xcb\xf2\x9c\xe4\x84\"#%"},
{[]byte{0x08, 0x32, 0x67, 0x07, 0xb4, 0xeb, 0x37, 0xb8}, "ab", "fnv\x03\xafc\xbdL\x86\x01\xb7\xbe"},
{[]byte{0xd8, 0xdc, 0xca, 0x18, 0x6b, 0xaf, 0xad, 0xcb}, "abc", "fnv\x03\xafc\xbdL\x86\x01\xb7\xbe"},
}
var golden64a = []golden{
{[]byte{0xcb, 0xf2, 0x9c, 0xe4, 0x84, 0x22, 0x23, 0x25}, ""},
{[]byte{0xaf, 0x63, 0xdc, 0x4c, 0x86, 0x01, 0xec, 0x8c}, "a"},
{[]byte{0x08, 0x9c, 0x44, 0x07, 0xb5, 0x45, 0x98, 0x6a}, "ab"},
{[]byte{0xe7, 0x1f, 0xa2, 0x19, 0x05, 0x41, 0x57, 0x4b}, "abc"},
{[]byte{0xcb, 0xf2, 0x9c, 0xe4, 0x84, 0x22, 0x23, 0x25}, "", "fnv\x04\xcb\xf2\x9c\xe4\x84\"#%"},
{[]byte{0xaf, 0x63, 0xdc, 0x4c, 0x86, 0x01, 0xec, 0x8c}, "a", "fnv\x04\xcb\xf2\x9c\xe4\x84\"#%"},
{[]byte{0x08, 0x9c, 0x44, 0x07, 0xb5, 0x45, 0x98, 0x6a}, "ab", "fnv\x04\xafc\xdcL\x86\x01\xec\x8c"},
{[]byte{0xe7, 0x1f, 0xa2, 0x19, 0x05, 0x41, 0x57, 0x4b}, "abc", "fnv\x04\xafc\xdcL\x86\x01\xec\x8c"},
}
var golden128 = []golden{
{[]byte{0x6c, 0x62, 0x27, 0x2e, 0x07, 0xbb, 0x01, 0x42, 0x62, 0xb8, 0x21, 0x75, 0x62, 0x95, 0xc5, 0x8d}, ""},
{[]byte{0xd2, 0x28, 0xcb, 0x69, 0x10, 0x1a, 0x8c, 0xaf, 0x78, 0x91, 0x2b, 0x70, 0x4e, 0x4a, 0x14, 0x1e}, "a"},
{[]byte{0x8, 0x80, 0x94, 0x5a, 0xee, 0xab, 0x1b, 0xe9, 0x5a, 0xa0, 0x73, 0x30, 0x55, 0x26, 0xc0, 0x88}, "ab"},
{[]byte{0xa6, 0x8b, 0xb2, 0xa4, 0x34, 0x8b, 0x58, 0x22, 0x83, 0x6d, 0xbc, 0x78, 0xc6, 0xae, 0xe7, 0x3b}, "abc"},
{[]byte{0x6c, 0x62, 0x27, 0x2e, 0x07, 0xbb, 0x01, 0x42, 0x62, 0xb8, 0x21, 0x75, 0x62, 0x95, 0xc5, 0x8d}, "", "fnv\x05lb'.\a\xbb\x01Bb\xb8!ub\x95ō"},
{[]byte{0xd2, 0x28, 0xcb, 0x69, 0x10, 0x1a, 0x8c, 0xaf, 0x78, 0x91, 0x2b, 0x70, 0x4e, 0x4a, 0x14, 0x1e}, "a", "fnv\x05lb'.\a\xbb\x01Bb\xb8!ub\x95ō"},
{[]byte{0x8, 0x80, 0x94, 0x5a, 0xee, 0xab, 0x1b, 0xe9, 0x5a, 0xa0, 0x73, 0x30, 0x55, 0x26, 0xc0, 0x88}, "ab", "fnv\x05\xd2(\xcbi\x10\x1a\x8c\xafx\x91+pNJ\x14\x1e"},
{[]byte{0xa6, 0x8b, 0xb2, 0xa4, 0x34, 0x8b, 0x58, 0x22, 0x83, 0x6d, 0xbc, 0x78, 0xc6, 0xae, 0xe7, 0x3b}, "abc", "fnv\x05\xd2(\xcbi\x10\x1a\x8c\xafx\x91+pNJ\x14\x1e"},
}
var golden128a = []golden{
{[]byte{0x6c, 0x62, 0x27, 0x2e, 0x07, 0xbb, 0x01, 0x42, 0x62, 0xb8, 0x21, 0x75, 0x62, 0x95, 0xc5, 0x8d}, ""},
{[]byte{0xd2, 0x28, 0xcb, 0x69, 0x6f, 0x1a, 0x8c, 0xaf, 0x78, 0x91, 0x2b, 0x70, 0x4e, 0x4a, 0x89, 0x64}, "a"},
{[]byte{0x08, 0x80, 0x95, 0x44, 0xbb, 0xab, 0x1b, 0xe9, 0x5a, 0xa0, 0x73, 0x30, 0x55, 0xb6, 0x9a, 0x62}, "ab"},
{[]byte{0xa6, 0x8d, 0x62, 0x2c, 0xec, 0x8b, 0x58, 0x22, 0x83, 0x6d, 0xbc, 0x79, 0x77, 0xaf, 0x7f, 0x3b}, "abc"},
{[]byte{0x6c, 0x62, 0x27, 0x2e, 0x07, 0xbb, 0x01, 0x42, 0x62, 0xb8, 0x21, 0x75, 0x62, 0x95, 0xc5, 0x8d}, "", "fnv\x06lb'.\a\xbb\x01Bb\xb8!ub\x95ō"},
{[]byte{0xd2, 0x28, 0xcb, 0x69, 0x6f, 0x1a, 0x8c, 0xaf, 0x78, 0x91, 0x2b, 0x70, 0x4e, 0x4a, 0x89, 0x64}, "a", "fnv\x06lb'.\a\xbb\x01Bb\xb8!ub\x95ō"},
{[]byte{0x08, 0x80, 0x95, 0x44, 0xbb, 0xab, 0x1b, 0xe9, 0x5a, 0xa0, 0x73, 0x30, 0x55, 0xb6, 0x9a, 0x62}, "ab", "fnv\x06\xd2(\xcbio\x1a\x8c\xafx\x91+pNJ\x89d"},
{[]byte{0xa6, 0x8d, 0x62, 0x2c, 0xec, 0x8b, 0x58, 0x22, 0x83, 0x6d, 0xbc, 0x79, 0x77, 0xaf, 0x7f, 0x3b}, "abc", "fnv\x06\xd2(\xcbio\x1a\x8c\xafx\x91+pNJ\x89d"},
}
func TestGolden32(t *testing.T) {
......@@ -85,19 +88,67 @@ func TestGolden128a(t *testing.T) {
func testGolden(t *testing.T, hash hash.Hash, gold []golden) {
for _, g := range gold {
hash.Reset()
done, error := hash.Write([]byte(g.text))
done, error := hash.Write([]byte(g.in))
if error != nil {
t.Fatalf("write error: %s", error)
}
if done != len(g.text) {
t.Fatalf("wrote only %d out of %d bytes", done, len(g.text))
if done != len(g.in) {
t.Fatalf("wrote only %d out of %d bytes", done, len(g.in))
}
if actual := hash.Sum(nil); !bytes.Equal(g.sum, actual) {
t.Errorf("hash(%q) = 0x%x want 0x%x", g.text, actual, g.sum)
if actual := hash.Sum(nil); !bytes.Equal(g.out, actual) {
t.Errorf("hash(%q) = 0x%x want 0x%x", g.in, actual, g.out)
}
}
}
func TestGoldenMarshal(t *testing.T) {
tests := []struct {
name string
newHash func() hash.Hash
gold []golden
}{
{"32", func() hash.Hash { return New32() }, golden32},
{"32a", func() hash.Hash { return New32a() }, golden32a},
{"64", func() hash.Hash { return New64() }, golden64},
{"64a", func() hash.Hash { return New64a() }, golden64a},
{"128", func() hash.Hash { return New128() }, golden128},
{"128a", func() hash.Hash { return New128a() }, golden128a},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
for _, g := range tt.gold {
h := tt.newHash()
h2 := tt.newHash()
io.WriteString(h, g.in[:len(g.in)/2])
state, err := h.(encoding.BinaryMarshaler).MarshalBinary()
if err != nil {
t.Errorf("could not marshal: %v", err)
continue
}
if string(state) != g.halfState {
t.Errorf("checksum(%q) state = %q, want %q", g.in, state, g.halfState)
continue
}
if err := h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(state); err != nil {
t.Errorf("could not unmarshal: %v", err)
continue
}
io.WriteString(h, g.in[len(g.in)/2:])
io.WriteString(h2, g.in[len(g.in)/2:])
if actual, actual2 := h.Sum(nil), h2.Sum(nil); !bytes.Equal(actual, actual2) {
t.Errorf("hash(%q) = 0x%x != marshaled 0x%x", g.in, actual, actual2)
}
}
})
}
}
func TestIntegrity32(t *testing.T) {
testIntegrity(t, New32())
}
......
src/hash/hash.go
View file @ 731b6321
......@@ -8,6 +8,19 @@ package hash
import "io"
// Hash is the common interface implemented by all hash functions.
//
// Hash implementations in the standard library (e.g. hash/crc32 and
// crypto/sha256) implement the encoding.BinaryMarshaler and
// encoding.BinaryUnmarshaler interfaces. Marshaling a hash implementation
// allows its internal state to be saved and used for additional processing
// later, without having to re-write the data previously written to the hash.
//
// Compatibility: Any future changes to hash or crypto packages will endeavor
// to maintain compatibility with state encoded using previous versions.
// That is, any released versions of the packages should be able to
// decode data written with any previously released version,
// subject to issues such as security fixes.
// See the Go compatibility document for background: https://golang.org/doc/go1compat
type Hash interface {
// Write (via the embedded io.Writer interface) adds more data to the running hash.
// It never returns an error.
......
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