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cbcmac: supplement test cases #281

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Sun Yimin 2024-12-03 08:20:59 +08:00 committed by GitHub
parent f419e78566
commit e6a8b84935
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6 changed files with 173 additions and 43 deletions
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145
cbcmac/cbcmac_test.go
View File

@ -2,8 +2,11 @@ package cbcmac
import (
"bytes"
"crypto/aes"
"encoding/hex"
"testing"
"github.com/emmansun/gmsm/internal/cryptotest"
"github.com/emmansun/gmsm/sm4"
)
@ -254,3 +257,145 @@ func TestCBCRMAC(t *testing.T) {
}
}
}
func TestMustPanic(t *testing.T) {
t.Run("invalid size", func(t *testing.T) {
key := make([]byte, 16)
block, _ := sm4.NewCipher(key)
cryptotest.MustPanic(t, "cbcmac: invalid size", func() {
NewCBCMAC(block, 0)
NewCBCMAC(block, 17)
NewEMAC(sm4.NewCipher, key, key, 0)
NewEMAC(sm4.NewCipher, key, key, 17)
NewANSIRetailMAC(sm4.NewCipher, key, key, 0)
NewANSIRetailMAC(sm4.NewCipher, key, key, 17)
NewMACDES(sm4.NewCipher, key, key, 0)
NewMACDES(sm4.NewCipher, key, key, 17)
NewCMAC(block, 0)
NewCMAC(block, 17)
NewLMAC(sm4.NewCipher, key, 0)
NewLMAC(sm4.NewCipher, key, 17)
NewTRCBCMAC(block, 0)
NewTRCBCMAC(block, 17)
NewCBCRMAC(block, 0)
NewCBCRMAC(block, 17)
})
})
t.Run("invalid key size", func(t *testing.T) {
key := make([]byte, 16)
cryptotest.MustPanic(t, "cbcmac: invalid size", func() {
NewEMAC(sm4.NewCipher, key[:15], key, 8)
NewEMAC(sm4.NewCipher, key, key[:15], 8)
NewANSIRetailMAC(sm4.NewCipher, key[:15], key, 8)
NewANSIRetailMAC(sm4.NewCipher, key, key[:15], 8)
NewMACDES(sm4.NewCipher, key[:15], key, 8)
NewMACDES(sm4.NewCipher, key, key[:15], 8)
NewLMAC(sm4.NewCipher, key[:15], 8)
})
})
}
func fromHex(s string) []byte {
b, err := hex.DecodeString(s)
if err != nil {
panic(err)
}
return b
}
// Test vectors for CMAC-AES from NIST
// http://csrc.nist.gov/publications/nistpubs/800-38B/SP_800-38B.pdf
// Appendix D
var testVectors = []struct {
key, msg, hash string
tagsize int
}{
// AES-128 vectors
{
key: "2b7e151628aed2a6abf7158809cf4f3c",
msg: "",
hash: "bb1d6929e95937287fa37d129b756746",
tagsize: 16,
},
{
key: "2b7e151628aed2a6abf7158809cf4f3c",
msg: "6bc1bee22e409f96e93d7e117393172a",
hash: "070a16b46b4d4144f79bdd9dd04a287c",
tagsize: 16,
},
{
key: "2b7e151628aed2a6abf7158809cf4f3c",
msg: "6bc1bee22e409f96e93d7e117393172a" +
"ae2d8a571e03ac9c9eb76fac45af8e51" +
"30c81c46a35ce411",
hash: "dfa66747de9ae63030ca32611497c827",
tagsize: 16,
},
{
key: "2b7e151628aed2a6abf7158809cf4f3c",
msg: "6bc1bee22e409f96e93d7e117393172a" +
"ae2d8a571e03ac9c9eb76fac45af8e51" +
"30c81c46a35ce411",
hash: "dfa66747de9ae63030ca32611497c827",
tagsize: 16,
},
{
key: "2b7e151628aed2a6abf7158809cf4f3c",
msg: "6bc1bee22e409f96e93d7e117393172a" +
"ae2d8a571e03ac9c9eb76fac45af8e51" +
"30c81c46a35ce411",
hash: "dfa66747de9ae63030ca3261",
tagsize: 12,
},
// AES-256 vectors
{
key: "603deb1015ca71be2b73aef0857d7781" +
"1f352c073b6108d72d9810a30914dff4",
msg: "",
hash: "028962f61b7bf89efc6b551f4667d983",
tagsize: 16,
},
{
key: "603deb1015ca71be2b73aef0857d7781" +
"1f352c073b6108d72d9810a30914dff4",
msg: "6bc1bee22e409f96e93d7e117393172a",
hash: "28a7023f452e8f82bd4bf28d8c37c35c",
tagsize: 16,
},
{
key: "603deb1015ca71be2b73aef0857d7781" +
"1f352c073b6108d72d9810a30914dff4",
msg: "6bc1bee22e409f96e93d7e117393172a" +
"ae2d8a571e03ac9c9eb76fac45af8e51" +
"30c81c46a35ce411",
hash: "aaf3d8f1de5640c232f5b169b9c911e6",
tagsize: 16,
},
{
key: "603deb1015ca71be2b73aef0857d7781" +
"1f352c073b6108d72d9810a30914dff4",
msg: "6bc1bee22e409f96e93d7e117393172a" +
"ae2d8a571e03ac9c9eb76fac45af8e51" +
"30c81c46a35ce411",
hash: "aaf3d8f1de5640c232f5b169",
tagsize: 12,
},
}
func TestCMACAES(t *testing.T) {
for i, v := range testVectors {
key := fromHex(v.key)
msg := fromHex(v.msg)
hash := fromHex(v.hash)
block, err := aes.NewCipher(key)
if err != nil {
t.Errorf("#%d: failed to create cipher: %v", i, err)
}
mac := NewCMAC(block, v.tagsize)
tag := mac.MAC(msg)
if !bytes.Equal(tag, hash) {
t.Errorf("#%d: expect tag %x, got %x", i, hash, tag)
}
}
}

8
internal/cryptotest/aead.go
View File

@ -131,12 +131,12 @@ func TestAEAD(t *testing.T, mAEAD MakeAEAD) {
// Make plaintext and dst slices point to same array with inexact overlap.
plaintext := buff[:ptLen]
dst := buff[1:1] // Shift dst to not start at start of plaintext.
mustPanic(t, "invalid buffer overlap", func() { sealMsg(t, aead, dst, nonce, plaintext, addData) })
MustPanic(t, "invalid buffer overlap", func() { sealMsg(t, aead, dst, nonce, plaintext, addData) })
// Only overlap on one byte
plaintext = buff[:ptLen]
dst = buff[ptLen-1 : ptLen-1]
mustPanic(t, "invalid buffer overlap", func() { sealMsg(t, aead, dst, nonce, plaintext, addData) })
MustPanic(t, "invalid buffer overlap", func() { sealMsg(t, aead, dst, nonce, plaintext, addData) })
})
t.Run("Open", func(t *testing.T) {
@ -160,7 +160,7 @@ func TestAEAD(t *testing.T, mAEAD MakeAEAD) {
ciphertext := buff[:len(validCT)]
copy(ciphertext, validCT)
dst := buff[1:1] // Shift dst to not start at start of ciphertext.
mustPanic(t, "invalid buffer overlap", func() { aead.Open(dst, nonce, ciphertext, addData) })
MustPanic(t, "invalid buffer overlap", func() { aead.Open(dst, nonce, ciphertext, addData) })
// Only overlap on one byte.
ciphertext = buff[:len(validCT)]
@ -171,7 +171,7 @@ func TestAEAD(t *testing.T, mAEAD MakeAEAD) {
// the ciphertext.
beforeTag := len(validCT) - aead.Overhead()
dst = buff[beforeTag-1 : beforeTag-1]
mustPanic(t, "invalid buffer overlap", func() { aead.Open(dst, nonce, ciphertext, addData) })
MustPanic(t, "invalid buffer overlap", func() { aead.Open(dst, nonce, ciphertext, addData) })
})
})
}

18
internal/cryptotest/block.go
View File

@ -205,17 +205,17 @@ func testCipher(t *testing.T, cipher func(dst, src []byte), blockSize int) {
// Make src and dst slices point to same array with inexact overlap
src := buff[:blockSize]
dst := buff[1 : blockSize+1]
mustPanic(t, "invalid buffer overlap", func() { cipher(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { cipher(dst, src) })
// Only overlap on one byte
src = buff[:blockSize]
dst = buff[blockSize-1 : 2*blockSize-1]
mustPanic(t, "invalid buffer overlap", func() { cipher(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { cipher(dst, src) })
// src comes after dst with one byte overlap
src = buff[blockSize-1 : 2*blockSize-1]
dst = buff[:blockSize]
mustPanic(t, "invalid buffer overlap", func() { cipher(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { cipher(dst, src) })
})
// Test short input/output.
@ -228,17 +228,17 @@ func testCipher(t *testing.T, cipher func(dst, src []byte), blockSize int) {
byteSlice := func(n int) []byte { return make([]byte, n+1)[0:n] }
// Off by one byte
mustPanic(t, "input not full block", func() { cipher(byteSlice(blockSize), byteSlice(blockSize-1)) })
mustPanic(t, "output not full block", func() { cipher(byteSlice(blockSize-1), byteSlice(blockSize)) })
MustPanic(t, "input not full block", func() { cipher(byteSlice(blockSize), byteSlice(blockSize-1)) })
MustPanic(t, "output not full block", func() { cipher(byteSlice(blockSize-1), byteSlice(blockSize)) })
// Small slices
mustPanic(t, "input not full block", func() { cipher(byteSlice(1), byteSlice(1)) })
mustPanic(t, "input not full block", func() { cipher(byteSlice(100), byteSlice(1)) })
mustPanic(t, "output not full block", func() { cipher(byteSlice(1), byteSlice(100)) })
MustPanic(t, "input not full block", func() { cipher(byteSlice(1), byteSlice(1)) })
MustPanic(t, "input not full block", func() { cipher(byteSlice(100), byteSlice(1)) })
MustPanic(t, "output not full block", func() { cipher(byteSlice(1), byteSlice(100)) })
})
}
func mustPanic(t *testing.T, msg string, f func()) {
func MustPanic(t *testing.T, msg string, f func()) {
t.Helper()
defer func() {

12
internal/cryptotest/blockmode.go
View File

@ -57,7 +57,7 @@ func testBlockMode(t *testing.T, bm MakeBlockMode, b cipher.Block, iv []byte) {
t.Run("WrongIVLen", func(t *testing.T) {
iv := make([]byte, b.BlockSize()+1)
mustPanic(t, "IV length must equal block size", func() { bm(b, iv) })
MustPanic(t, "IV length must equal block size", func() { bm(b, iv) })
})
t.Run("AlterInput", func(t *testing.T) {
@ -135,7 +135,7 @@ func testBlockMode(t *testing.T, bm MakeBlockMode, b cipher.Block, iv []byte) {
src = make([]byte, blockSize*3)
rng.Read(src)
mustPanic(t, "output smaller than input", func() {
MustPanic(t, "output smaller than input", func() {
bm(b, iv).CryptBlocks(dst, src)
})
@ -182,17 +182,17 @@ func testBlockMode(t *testing.T, bm MakeBlockMode, b cipher.Block, iv []byte) {
// Make src and dst slices point to same array with inexact overlap
src := buff[:blockSize]
dst := buff[1 : blockSize+1]
mustPanic(t, "invalid buffer overlap", func() { bm(b, iv).CryptBlocks(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { bm(b, iv).CryptBlocks(dst, src) })
// Only overlap on one byte
src = buff[:blockSize]
dst = buff[blockSize-1 : 2*blockSize-1]
mustPanic(t, "invalid buffer overlap", func() { bm(b, iv).CryptBlocks(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { bm(b, iv).CryptBlocks(dst, src) })
// src comes after dst with one byte overlap
src = buff[blockSize-1 : 2*blockSize-1]
dst = buff[:blockSize]
mustPanic(t, "invalid buffer overlap", func() { bm(b, iv).CryptBlocks(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { bm(b, iv).CryptBlocks(dst, src) })
})
// Input to CryptBlocks should be a multiple of BlockSize
@ -201,7 +201,7 @@ func testBlockMode(t *testing.T, bm MakeBlockMode, b cipher.Block, iv []byte) {
for _, srcSize := range []int{blockSize - 1, blockSize + 1, 2*blockSize - 1, 2*blockSize + 1} {
src := make([]byte, srcSize)
dst := make([]byte, 3*blockSize) // Make a dst large enough for all src
mustPanic(t, "input not full blocks", func() { bm(b, iv).CryptBlocks(dst, src) })
MustPanic(t, "input not full blocks", func() { bm(b, iv).CryptBlocks(dst, src) })
}
})

10
internal/cryptotest/stream.go
View File

@ -135,7 +135,7 @@ func TestStream(t *testing.T, ms MakeStream) {
copy(ciphertext, plaintext) // Reset ciphertext buffer
t.Run(fmt.Sprintf("BuffLength=%d", length), func(t *testing.T) {
mustPanic(t, "output smaller than input", func() { ms().XORKeyStream(ciphertext[:length], plaintext) })
MustPanic(t, "output smaller than input", func() { ms().XORKeyStream(ciphertext[:length], plaintext) })
if !bytes.Equal(ciphertext[length:], plaintext[length:]) {
t.Errorf("XORKeyStream did out of bounds write; got %s, want %s", truncateHex(ciphertext[length:]), truncateHex(plaintext[length:]))
@ -159,17 +159,17 @@ func TestStream(t *testing.T, ms MakeStream) {
// Make src and dst slices point to same array with inexact overlap
src := buff[:length]
dst := buff[1 : length+1]
mustPanic(t, "invalid buffer overlap", func() { ms().XORKeyStream(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { ms().XORKeyStream(dst, src) })
// Only overlap on one byte
src = buff[:length]
dst = buff[length-1 : 2*length-1]
mustPanic(t, "invalid buffer overlap", func() { ms().XORKeyStream(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { ms().XORKeyStream(dst, src) })
// src comes after dst with one byte overlap
src = buff[length-1 : 2*length-1]
dst = buff[:length]
mustPanic(t, "invalid buffer overlap", func() { ms().XORKeyStream(dst, src) })
MustPanic(t, "invalid buffer overlap", func() { ms().XORKeyStream(dst, src) })
})
}
})
@ -220,7 +220,7 @@ func TestStreamFromBlock(t *testing.T, block cipher.Block, blockMode func(b ciph
rng := newRandReader(t)
iv := make([]byte, block.BlockSize()+1)
rng.Read(iv)
mustPanic(t, "IV length must equal block size", func() { blockMode(block, iv) })
MustPanic(t, "IV length must equal block size", func() { blockMode(block, iv) })
})
t.Run("BlockModeStream", func(t *testing.T) {

23
zuc/eea_test.go
View File

@ -141,40 +141,25 @@ func TestXORStreamAt(t *testing.T) {
// Make src and dst slices point to same array with inexact overlap
src := buff[:32]
dst := buff[1 : 32+1]
mustPanic(t, "invalid buffer overlap", func() { c.XORKeyStreamAt(dst, src, 0) })
cryptotest.MustPanic(t, "invalid buffer overlap", func() { c.XORKeyStreamAt(dst, src, 0) })
// Only overlap on one byte
src = buff[:32]
dst = buff[32-1 : 2*32-1]
mustPanic(t, "invalid buffer overlap", func() { c.XORKeyStreamAt(dst, src, 0) })
cryptotest.MustPanic(t, "invalid buffer overlap", func() { c.XORKeyStreamAt(dst, src, 0) })
// src comes after dst with one byte overlap
src = buff[32-1 : 2*32-1]
dst = buff[:32]
mustPanic(t, "invalid buffer overlap", func() { c.XORKeyStreamAt(dst, src, 0) })
cryptotest.MustPanic(t, "invalid buffer overlap", func() { c.XORKeyStreamAt(dst, src, 0) })
// length of dst is less than src
src = buff[:32]
dst = buff[32:63]
mustPanic(t, "output smaller than input", func() { c.XORKeyStreamAt(dst, src, 0) })
cryptotest.MustPanic(t, "output smaller than input", func() { c.XORKeyStreamAt(dst, src, 0) })
})
}
func mustPanic(t *testing.T, msg string, f func()) {
t.Helper()
defer func() {
t.Helper()
err := recover()
if err == nil {
t.Errorf("function did not panic for %q", msg)
}
}()
f()
}
func benchmarkStream(b *testing.B, buf []byte) {
b.SetBytes(int64(len(buf)))