/
md5_test.go
381 lines (338 loc) · 11.3 KB
/
md5_test.go
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// Copyright (c) 2020 MinIO Inc. All rights reserved.
// Use of this source code is governed by a license that can be
// found in the LICENSE file.
package md5simd
import (
"bytes"
"crypto/md5"
"encoding/hex"
"fmt"
"hash"
"io"
"math/rand"
"runtime"
"sync"
"testing"
)
type md5Test struct {
in string
want string
}
var golden = []md5Test{
{"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "014842d480b571495a4a0363793f7367"},
{"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", "0b649bcb5a82868817fec9a6e709d233"},
{"cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc", "bcd5708ed79b18f0f0aaa27fd0056d86"},
{"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd", "e987c862fbd2f2f0ca859cb8d7806bf3"},
{"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee", "982731671f0cd82cafce8d96a98e7a48"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "baf13e8b16d8c06324d7c9ab32cb7ff0"},
{"gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg", "8ea3109cbd951bba1ace2f401a784ae4"},
{"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh", "d141045bfb385cad357e7c39c60e5da0"},
{"", "d41d8cd98f00b204e9800998ecf8427e"},
{"a", "0cc175b9c0f1b6a831c399e269772661"},
{"ab", "187ef4436122d1cc2f40dc2b92f0eba0"},
{"abc", "900150983cd24fb0d6963f7d28e17f72"},
{"abcd", "e2fc714c4727ee9395f324cd2e7f331f"},
{"abcde", "ab56b4d92b40713acc5af89985d4b786"},
{"abcdef", "e80b5017098950fc58aad83c8c14978e"},
{"abcdefg", "7ac66c0f148de9519b8bd264312c4d64"},
{"abcdefgh", "e8dc4081b13434b45189a720b77b6818"},
{"abcdefghi", "8aa99b1f439ff71293e95357bac6fd94"},
{"abcdefghij", "a925576942e94b2ef57a066101b48876"},
{"Discard medicine more than two years old.", "d747fc1719c7eacb84058196cfe56d57"},
{"He who has a shady past knows that nice guys finish last.", "bff2dcb37ef3a44ba43ab144768ca837"},
{"I wouldn't marry him with a ten foot pole.", "0441015ecb54a7342d017ed1bcfdbea5"},
{"Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave", "9e3cac8e9e9757a60c3ea391130d3689"},
{"The days of the digital watch are numbered. -Tom Stoppard", "a0f04459b031f916a59a35cc482dc039"},
{"Nepal premier won't resign.", "e7a48e0fe884faf31475d2a04b1362cc"},
{"For every action there is an equal and opposite government program.", "637d2fe925c07c113800509964fb0e06"},
{"His money is twice tainted: 'taint yours and 'taint mine.", "834a8d18d5c6562119cf4c7f5086cb71"},
{"There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977", "de3a4d2fd6c73ec2db2abad23b444281"},
{"It's a tiny change to the code and not completely disgusting. - Bob Manchek", "acf203f997e2cf74ea3aff86985aefaf"},
{"size: a.out: bad magic", "e1c1384cb4d2221dfdd7c795a4222c9a"},
{"The major problem is with sendmail. -Mark Horton", "c90f3ddecc54f34228c063d7525bf644"},
{"Give me a rock, paper and scissors and I will move the world. CCFestoon", "cdf7ab6c1fd49bd9933c43f3ea5af185"},
{"If the enemy is within range, then so are you.", "83bc85234942fc883c063cbd7f0ad5d0"},
{"It's well we cannot hear the screams/That we create in others' dreams.", "277cbe255686b48dd7e8f389394d9299"},
{"You remind me of a TV show, but that's all right: I watch it anyway.", "fd3fb0a7ffb8af16603f3d3af98f8e1f"},
{"C is as portable as Stonehedge!!", "469b13a78ebf297ecda64d4723655154"},
{"Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley", "63eb3a2f466410104731c4b037600110"},
{"The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule", "72c2ed7592debca1c90fc0100f931a2f"},
{"How can you write a big system without C++? -Paul Glick", "132f7619d33b523b1d9e5bd8e0928355"},
{"", "d41d8cd98f00b204e9800998ecf8427e"},
}
func testGolden16(t *testing.T, megabyte int) {
server := NewServer()
h16 := [16]hash.Hash{}
input := [16][]byte{}
for i := range h16 {
h16[i] = server.NewHash()
input[i] = bytes.Repeat([]byte{0x61 + byte(i)}, megabyte*1024*1024)
}
for i := range h16 {
h16[i].Write(input[i])
}
for i := range h16 {
digest := h16[i].Sum([]byte{})
got := fmt.Sprintf("%x\n", digest)
h := md5.New()
h.Write(input[i])
want := fmt.Sprintf("%x\n", h.Sum(nil))
if got != want {
t.Errorf("TestGolden16[%d], got %v, want %v", i, got, want)
}
}
}
func TestGolden16(t *testing.T) {
t.Run("1MB", func(t *testing.T) {
testGolden16(t, 1)
})
t.Run("2MB", func(t *testing.T) {
testGolden16(t, 2)
})
}
func TestGolangGolden16(t *testing.T) {
server := NewServer()
defer server.Close()
h16 := [16]Hasher{}
for i := range h16 {
h16[i] = server.NewHash()
defer h16[i].Close()
}
// Skip first 8, so we even 2 rounds of 16 test vectors
golden16 := golden[8:]
for tc := 0; tc < len(golden16); tc += 16 {
for i := range h16 {
h16[i].Reset()
h16[i].Write([]byte(golden16[tc+i].in))
}
for i := range h16 {
digest := h16[i].Sum([]byte{})
if fmt.Sprintf("%x", digest) != golden16[tc+i].want {
t.Errorf("TestGolangGolden[%d], got %v, want %v, uid:%+v", tc+i, fmt.Sprintf("%x", digest), golden16[tc+i].want, h16[i])
}
}
}
}
func testMultipleSums(t *testing.T, incr, incr2 int) {
server := NewServer()
defer server.Close()
h := server.NewHash()
var tmp [Size]byte
h.Write(bytes.Repeat([]byte{0x61}, 64+incr))
digestMiddle1 := fmt.Sprintf("%x", h.Sum(tmp[:0]))
digestMiddle1b := fmt.Sprintf("%x", h.Sum(tmp[:0]))
if digestMiddle1 != digestMiddle1b {
t.Errorf("TestMultipleSums<Middle1/1b>, got %s, want %s", digestMiddle1, digestMiddle1b)
}
h.Write(bytes.Repeat([]byte{0x62}, 64+incr2))
digestMiddle2 := fmt.Sprintf("%x", h.Sum(tmp[:0]))
digestMiddle2b := fmt.Sprintf("%x", h.Sum(tmp[:0]))
if digestMiddle2 != digestMiddle2b {
t.Errorf("TestMultipleSums<Middle2/2b>, got %s, want %s", digestMiddle2, digestMiddle2b)
}
h.Write(bytes.Repeat([]byte{0x63}, 64))
digestFinal := fmt.Sprintf("%x", h.Sum(tmp[:0]))
h2 := md5.New()
h2.Write(bytes.Repeat([]byte{0x61}, 64+incr))
digestCryptoMiddle1 := fmt.Sprintf("%x", h2.Sum(tmp[:0]))
if digestMiddle1 != digestCryptoMiddle1 {
t.Errorf("TestMultipleSums<Middle1>, got %s, want %s", digestMiddle1, digestCryptoMiddle1)
}
h2.Write(bytes.Repeat([]byte{0x62}, 64+incr2))
digestCryptoMiddle2 := fmt.Sprintf("%x", h2.Sum(tmp[:0]))
if digestMiddle2 != digestCryptoMiddle2 {
t.Errorf("TestMultipleSums<Middle2>, got %s, want %s", digestMiddle2, digestCryptoMiddle2)
}
h2.Write(bytes.Repeat([]byte{0x63}, 64))
digestCryptoFinal := fmt.Sprintf("%x", h2.Sum(tmp[:0]))
if digestFinal != digestCryptoFinal {
t.Errorf("TestMultipleSums<Final>, got %s, want %s", digestFinal, digestCryptoFinal)
}
}
func TestMultipleSums(t *testing.T) {
t.Run("", func(t *testing.T) {
for i := 0; i < 64*2; i++ {
for j := 0; j < 64; j++ {
testMultipleSums(t, i, j)
}
}
})
}
func testMd5Simulator(t *testing.T, concurrency, iterations, maxSize int, server Server) {
// Use deterministic RNG.
rng := rand.New(rand.NewSource(0xabad1dea))
for i := 0; i < iterations; i++ {
var wg sync.WaitGroup
wg.Add(concurrency)
for j := 0; j < concurrency; j++ {
size := 1 + rng.Intn(maxSize)
go func(j int) {
defer wg.Done()
h := server.NewHash()
defer h.Close()
input := bytes.Repeat([]byte{0x61 + byte(i^j)}, size)
// Copy using odd-sized buffer
n, err := io.CopyBuffer(h, bytes.NewBuffer(input), make([]byte, 13773))
if int(n) != size || err != nil {
panic(fmt.Errorf("wrote %d of %d, err: %v", n, size, err))
}
got := h.Sum([]byte{})
// Calculate reference
want := md5.Sum(input)
if !bytes.Equal(got, want[:]) {
panic(fmt.Errorf("got %s, want %s", hex.EncodeToString(got), hex.EncodeToString(want[:])))
}
}(j)
}
wg.Wait()
}
}
func TestMd5Simulator(t *testing.T) {
iterations := 400
if testing.Short() {
iterations = 40
}
t.Run("c16", func(t *testing.T) {
server := NewServer()
t.Cleanup(server.Close)
t.Parallel()
testMd5Simulator(t, 16, iterations/10, 20<<20, server)
})
t.Run("c1", func(t *testing.T) {
server := NewServer()
t.Cleanup(server.Close)
t.Parallel()
testMd5Simulator(t, 1, iterations, 5<<20, server)
})
t.Run("c19", func(t *testing.T) {
server := NewServer()
t.Cleanup(server.Close)
t.Parallel()
testMd5Simulator(t, 19, iterations*2, 100<<10, server)
})
}
// TestRandomInput tests a number of random inputs.
func TestRandomInput(t *testing.T) {
n := 500
if testing.Short() {
n = 100
}
conc := runtime.GOMAXPROCS(0)
for c := 0; c < conc; c++ {
t.Run(fmt.Sprint("routine-", c), func(t *testing.T) {
server := NewServer()
t.Cleanup(server.Close)
for i := 0; i < n; i++ {
rng := rand.New(rand.NewSource(0xabad1dea + int64(c*n+i)))
// Up to 1 MB
length := rng.Intn(1 << 20)
baseBuf := make([]byte, length)
t.Run(fmt.Sprint("hash-", i), func(t *testing.T) {
t.Parallel()
testBuffer := baseBuf
rng.Read(testBuffer)
wantMD5 := md5.Sum(testBuffer)
h := server.NewHash()
for len(testBuffer) > 0 {
wrLen := rng.Intn(len(testBuffer) + 1)
n, err := h.Write(testBuffer[:wrLen])
if err != nil {
t.Fatal(err)
}
if n != wrLen {
t.Fatalf("write mismatch, want %d, got %d", wrLen, n)
}
testBuffer = testBuffer[n:]
if len(testBuffer) == 0 {
// Test if we can use the buffer without races.
rng.Read(baseBuf)
}
}
got := h.Sum(nil)
if !bytes.Equal(wantMD5[:], got) {
t.Fatalf("mismatch, want %v, got %v", wantMD5[:], got)
}
h.Close()
})
}
})
}
}
func benchmarkCryptoMd5(b *testing.B, blockSize int) {
input := bytes.Repeat([]byte{0x61}, blockSize)
b.SetBytes(int64(blockSize))
b.ReportAllocs()
b.ResetTimer()
h := md5.New()
var tmp [Size]byte
for j := 0; j < b.N; j++ {
h.Write(input)
h.Sum(tmp[:0])
}
}
func benchmarkCryptoMd5P(b *testing.B, blockSize int) {
b.SetBytes(int64(blockSize))
b.ReportAllocs()
b.ResetTimer()
var tmp [Size]byte
b.RunParallel(func(pb *testing.PB) {
input := bytes.Repeat([]byte{0x61}, blockSize)
h := md5.New()
for pb.Next() {
h.Write(input)
h.Sum(tmp[:0])
}
})
}
func BenchmarkCryptoMd5(b *testing.B) {
b.Run("32KB", func(b *testing.B) {
benchmarkCryptoMd5(b, 32*1024)
})
b.Run("64KB", func(b *testing.B) {
benchmarkCryptoMd5(b, 64*1024)
})
b.Run("128KB", func(b *testing.B) {
benchmarkCryptoMd5(b, 128*1024)
})
b.Run("256KB", func(b *testing.B) {
benchmarkCryptoMd5(b, 256*1024)
})
b.Run("512KB", func(b *testing.B) {
benchmarkCryptoMd5(b, 512*1024)
})
b.Run("1MB", func(b *testing.B) {
benchmarkCryptoMd5(b, 1024*1024)
})
b.Run("2MB", func(b *testing.B) {
benchmarkCryptoMd5(b, 2*1024*1024)
})
}
func BenchmarkCryptoMd5Parallel(b *testing.B) {
b.Run("32KB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 32*1024)
})
b.Run("64KB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 64*1024)
})
b.Run("128KB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 128*1024)
})
b.Run("256KB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 256*1024)
})
b.Run("512KB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 512*1024)
})
b.Run("1MB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 1024*1024)
})
b.Run("2MB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 2*1024*1024)
})
b.Run("4MB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 4*1024*1024)
})
b.Run("8MB", func(b *testing.B) {
benchmarkCryptoMd5P(b, 8*1024*1024)
})
}