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125 lines
4.6 KiB
125 lines
4.6 KiB
// SHA1 hash algorithm. See RFC 3174.
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package sha1
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import (
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"crypto/rand"
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"fmt"
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"io"
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"testing"
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)
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type sha1Test struct {
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out string
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in string
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}
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var golden = []sha1Test{
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{"da39a3ee5e6b4b0d3255bfef95601890afd80709", ""},
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{"86f7e437faa5a7fce15d1ddcb9eaeaea377667b8", "a"},
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{"da23614e02469a0d7c7bd1bdab5c9c474b1904dc", "ab"},
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{"a9993e364706816aba3e25717850c26c9cd0d89d", "abc"},
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{"81fe8bfe87576c3ecb22426f8e57847382917acf", "abcd"},
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{"03de6c570bfe24bfc328ccd7ca46b76eadaf4334", "abcde"},
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{"1f8ac10f23c5b5bc1167bda84b833e5c057a77d2", "abcdef"},
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{"2fb5e13419fc89246865e7a324f476ec624e8740", "abcdefg"},
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{"425af12a0743502b322e93a015bcf868e324d56a", "abcdefgh"},
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{"c63b19f1e4c8b5f76b25c49b8b87f57d8e4872a1", "abcdefghi"},
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{"d68c19a0a345b7eab78d5e11e991c026ec60db63", "abcdefghij"},
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{"ebf81ddcbe5bf13aaabdc4d65354fdf2044f38a7", "Discard medicine more than two years old."},
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{"e5dea09392dd886ca63531aaa00571dc07554bb6", "He who has a shady past knows that nice guys finish last."},
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{"45988f7234467b94e3e9494434c96ee3609d8f8f", "I wouldn't marry him with a ten foot pole."},
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{"55dee037eb7460d5a692d1ce11330b260e40c988", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
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{"b7bc5fb91080c7de6b582ea281f8a396d7c0aee8", "The days of the digital watch are numbered. -Tom Stoppard"},
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{"c3aed9358f7c77f523afe86135f06b95b3999797", "Nepal premier won't resign."},
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{"6e29d302bf6e3a5e4305ff318d983197d6906bb9", "For every action there is an equal and opposite government program."},
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{"597f6a540010f94c15d71806a99a2c8710e747bd", "His money is twice tainted: 'taint yours and 'taint mine."},
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{"6859733b2590a8a091cecf50086febc5ceef1e80", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
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{"514b2630ec089b8aee18795fc0cf1f4860cdacad", "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
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{"c5ca0d4a7b6676fc7aa72caa41cc3d5df567ed69", "size: a.out: bad magic"},
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{"74c51fa9a04eadc8c1bbeaa7fc442f834b90a00a", "The major problem is with sendmail. -Mark Horton"},
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{"0b4c4ce5f52c3ad2821852a8dc00217fa18b8b66", "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
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{"3ae7937dd790315beb0f48330e8642237c61550a", "If the enemy is within range, then so are you."},
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{"410a2b296df92b9a47412b13281df8f830a9f44b", "It's well we cannot hear the screams/That we create in others' dreams."},
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{"841e7c85ca1adcddbdd0187f1289acb5c642f7f5", "You remind me of a TV show, but that's all right: I watch it anyway."},
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{"163173b825d03b952601376b25212df66763e1db", "C is as portable as Stonehedge!!"},
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{"32b0377f2687eb88e22106f133c586ab314d5279", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
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{"0885aaf99b569542fd165fa44e322718f4a984e0", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
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{"6627d6904d71420b0bf3886ab629623538689f45", "How can you write a big system without C++? -Paul Glick"},
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}
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func TestGolden(t *testing.T) {
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for i := 0; i < len(golden); i++ {
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g := golden[i]
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s := fmt.Sprintf("%x", Sum1([]byte(g.in)))
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if s != g.out {
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t.Fatalf("Sum function: sha1(%s) = %s want %s", g.in, s, g.out)
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}
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c := New()
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for j := 0; j < 3; j++ {
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if j < 2 {
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io.WriteString(c, g.in)
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} else {
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io.WriteString(c, g.in[0:len(g.in)/2])
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c.Sum(nil)
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io.WriteString(c, g.in[len(g.in)/2:])
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}
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s := fmt.Sprintf("%x", c.Sum(nil))
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if s != g.out {
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t.Fatalf("sha1[%d](%s) = %s want %s", j, g.in, s, g.out)
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}
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c.Reset()
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}
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}
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}
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func TestSize(t *testing.T) {
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c := New()
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if got := c.Size(); got != Size {
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t.Errorf("Size = %d; want %d", got, Size)
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}
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}
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func TestBlockSize(t *testing.T) {
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c := New()
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if got := c.BlockSize(); got != BlockSize {
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t.Errorf("BlockSize = %d; want %d", got, BlockSize)
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}
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}
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// Tests that blockGeneric (pure Go) and block (in assembly for amd64, 386, arm) match.
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func TestBlockGeneric(t *testing.T) {
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gen, asm := New().(*digest), New().(*digest)
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buf := make([]byte, BlockSize*20) // arbitrary factor
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rand.Read(buf)
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blockGeneric(gen, buf)
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block(asm, buf)
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if *gen != *asm {
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t.Error("block and blockGeneric resulted in different states")
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}
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}
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var bench = New()
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var buf = make([]byte, 8192)
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func benchmarkSize(b *testing.B, size int) {
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b.SetBytes(int64(size))
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sum := make([]byte, bench.Size())
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for i := 0; i < b.N; i++ {
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bench.Reset()
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bench.Write(buf[:size])
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bench.Sum(sum[:0])
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}
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}
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func BenchmarkHash8Bytes(b *testing.B) {
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benchmarkSize(b, 8)
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}
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func BenchmarkHash1K(b *testing.B) {
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benchmarkSize(b, 1024)
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}
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func BenchmarkHash8K(b *testing.B) {
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benchmarkSize(b, 8192)
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}
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