mirror of
https://github.com/emmansun/gmsm.git
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[SM4] unify arm64 amd64 gcm asm
This commit is contained in:
emmansun
parent
ae7501d61b
commit
f43de47d72
@ -1,123 +0,0 @@
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//go:build amd64 || arm64
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// +build amd64 arm64
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package sm4
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import (
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"encoding/hex"
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"testing"
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)
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func createGcm() *gcmAsm {
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key := []byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10}
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c := sm4CipherAsm{sm4Cipher{make([]uint32, rounds), make([]uint32, rounds)}, 4, 64}
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expandKeyAsm(&key[0], &ck[0], &c.enc[0], &c.dec[0])
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c1 := &sm4CipherGCM{c}
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g := &gcmAsm{}
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g.cipher = &c1.sm4CipherAsm
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g.tagSize = 16
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gcmSm4Init(&g.bytesProductTable, g.cipher.enc)
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return g
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}
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var sm4GCMTests = []struct {
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plaintext string
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}{
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{ // case 0: < 16
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"abcdefg",
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},
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{ // case 1: = 16
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"abcdefgabcdefghg",
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},
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{ // case 2: > 16 , < 64
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"abcdefgabcdefghgabcdefgabcdefghgaaa",
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},
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{ // case 3: = 64
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"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghg",
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},
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{ // case 4: > 64, < 128
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"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgaaa",
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},
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{ // case 5: = 128
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"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghg",
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},
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{ // case 6: 227 > 128, < 256, 128 + 64 + 35
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"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgaaa",
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},
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{ // case 7: = 256
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"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghg",
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},
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{ // case 8: > 256, = 355
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"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgaaa",
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},
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}
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func initCounter(i byte, counter *[16]byte) {
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copy(counter[:], []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12})
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counter[gcmBlockSize-1] = i
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}
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func resetTag(tag *[16]byte) {
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for j := 0; j < 16; j++ {
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tag[j] = 0
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}
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}
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func TestGcmSm4Enc(t *testing.T) {
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var counter1, counter2 [16]byte
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gcm := createGcm()
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var tagOut1, tagOut2 [gcmTagSize]byte
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for i, test := range sm4GCMTests {
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initCounter(2, &counter1)
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initCounter(1, &counter2)
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gcmSm4Data(&gcm.bytesProductTable, []byte("emmansun"), &tagOut1)
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out1 := make([]byte, len(test.plaintext)+gcm.tagSize)
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gcm.counterCrypt(out1, []byte(test.plaintext), &counter1)
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gcmSm4Data(&gcm.bytesProductTable, out1[:len(test.plaintext)], &tagOut1)
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out2 := make([]byte, len(test.plaintext)+gcm.tagSize)
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gcmSm4Data(&gcm.bytesProductTable, []byte("emmansun"), &tagOut2)
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gcmSm4Enc(&gcm.bytesProductTable, out2, []byte(test.plaintext), &counter2, &tagOut2, gcm.cipher.enc)
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if hex.EncodeToString(out1) != hex.EncodeToString(out2) {
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t.Errorf("#%d: out expected %s, got %s", i, hex.EncodeToString(out1), hex.EncodeToString(out2))
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}
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if hex.EncodeToString(tagOut1[:]) != hex.EncodeToString(tagOut2[:]) {
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t.Errorf("#%d: tag expected %s, got %s", i, hex.EncodeToString(tagOut1[:]), hex.EncodeToString(tagOut2[:]))
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}
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resetTag(&tagOut1)
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resetTag(&tagOut2)
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}
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}
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func TestGcmSm4Dec(t *testing.T) {
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var counter1, counter2 [16]byte
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gcm := createGcm()
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var tagOut1, tagOut2 [gcmTagSize]byte
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for i, test := range sm4GCMTests {
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initCounter(2, &counter1)
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initCounter(1, &counter2)
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gcmSm4Data(&gcm.bytesProductTable, []byte("emmansun"), &tagOut1)
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out1 := make([]byte, len(test.plaintext)+gcm.tagSize)
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gcm.counterCrypt(out1, []byte(test.plaintext), &counter1)
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gcmSm4Data(&gcm.bytesProductTable, out1[:len(test.plaintext)], &tagOut1)
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out1 = out1[:len(test.plaintext)]
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out2 := make([]byte, len(test.plaintext)+gcm.tagSize)
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gcmSm4Data(&gcm.bytesProductTable, []byte("emmansun"), &tagOut2)
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gcmSm4Dec(&gcm.bytesProductTable, out2, out1, &counter2, &tagOut2, gcm.cipher.enc)
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if hex.EncodeToString([]byte(test.plaintext)) != hex.EncodeToString(out2[:len(test.plaintext)]) {
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t.Errorf("#%d: out expected %s, got %s", i, hex.EncodeToString([]byte(test.plaintext)), hex.EncodeToString(out2[:len(test.plaintext)]))
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}
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if hex.EncodeToString(tagOut1[:]) != hex.EncodeToString(tagOut2[:]) {
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t.Errorf("#%d: tag expected %s, got %s", i, hex.EncodeToString(tagOut1[:]), hex.EncodeToString(tagOut2[:]))
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}
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resetTag(&tagOut1)
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resetTag(&tagOut2)
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}
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}
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@ -1,166 +0,0 @@
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//go:build arm64
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// +build arm64
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package sm4
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import (
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"crypto/cipher"
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goSubtle "crypto/subtle"
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"github.com/emmansun/gmsm/internal/subtle"
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)
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// sm4CipherGCM implements crypto/cipher.gcmAble so that crypto/cipher.NewGCM
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// will use the optimised implementation in this file when possible. Instances
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// of this type only exist when hasGCMAsm returns true.
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type sm4CipherGCM struct {
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sm4CipherAsm
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}
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// Assert that sm4CipherGCM implements the gcmAble interface.
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var _ gcmAble = (*sm4CipherGCM)(nil)
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//go:noescape
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func gcmSm4Init(productTable *[256]byte, rk []uint32)
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//go:noescape
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func gcmSm4Enc(productTable *[256]byte, dst, src []byte, ctr, T *[16]byte, rk []uint32)
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//go:noescape
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func gcmSm4Dec(productTable *[256]byte, dst, src []byte, ctr, T *[16]byte, rk []uint32)
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//go:noescape
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func gcmSm4Data(productTable *[256]byte, data []byte, T *[16]byte)
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//go:noescape
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func gcmSm4Finish(productTable *[256]byte, tagMask, T *[16]byte, pLen, dLen uint64)
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type gcmAsm struct {
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gcm
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bytesProductTable [256]byte
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}
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// NewGCM returns the SM4 cipher wrapped in Galois Counter Mode. This is only
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// called by crypto/cipher.NewGCM via the gcmAble interface.
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func (c *sm4CipherGCM) NewGCM(nonceSize, tagSize int) (cipher.AEAD, error) {
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g := &gcmAsm{}
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g.cipher = &c.sm4CipherAsm
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g.nonceSize = nonceSize
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g.tagSize = tagSize
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gcmSm4Init(&g.bytesProductTable, g.cipher.enc)
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return g, nil
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}
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func (g *gcmAsm) NonceSize() int {
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return g.nonceSize
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}
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func (g *gcmAsm) Overhead() int {
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return g.tagSize
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}
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// Seal encrypts and authenticates plaintext. See the cipher.AEAD interface for
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// details.
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func (g *gcmAsm) Seal(dst, nonce, plaintext, data []byte) []byte {
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if len(nonce) != g.nonceSize {
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panic("cipher: incorrect nonce length given to GCM")
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}
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if uint64(len(plaintext)) > ((1<<32)-2)*BlockSize {
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panic("cipher: message too large for GCM")
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}
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var counter, tagMask [gcmBlockSize]byte
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if len(nonce) == gcmStandardNonceSize {
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// Init counter to nonce||1
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copy(counter[:], nonce)
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counter[gcmBlockSize-1] = 1
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} else {
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// Otherwise counter = GHASH(nonce)
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gcmSm4Data(&g.bytesProductTable, nonce, &counter)
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gcmSm4Finish(&g.bytesProductTable, &tagMask, &counter, uint64(len(nonce)), uint64(0))
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}
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g.cipher.Encrypt(tagMask[:], counter[:])
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gcmInc32(&counter)
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var tagOut [gcmTagSize]byte
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gcmSm4Data(&g.bytesProductTable, data, &tagOut)
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ret, out := subtle.SliceForAppend(dst, len(plaintext)+g.tagSize)
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if subtle.InexactOverlap(out[:len(plaintext)], plaintext) {
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panic("cipher: invalid buffer overlap")
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}
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if len(plaintext) > 0 {
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g.counterCrypt(out, plaintext, &counter)
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gcmSm4Data(&g.bytesProductTable, out[:len(plaintext)], &tagOut)
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}
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gcmSm4Finish(&g.bytesProductTable, &tagMask, &tagOut, uint64(len(plaintext)), uint64(len(data)))
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copy(out[len(plaintext):], tagOut[:])
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return ret
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}
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// Open authenticates and decrypts ciphertext. See the cipher.AEAD interface
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// for details.
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func (g *gcmAsm) Open(dst, nonce, ciphertext, data []byte) ([]byte, error) {
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if len(nonce) != g.nonceSize {
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panic("cipher: incorrect nonce length given to GCM")
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}
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// Sanity check to prevent the authentication from always succeeding if an implementation
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// leaves tagSize uninitialized, for example.
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if g.tagSize < gcmMinimumTagSize {
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panic("cipher: incorrect GCM tag size")
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}
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if len(ciphertext) < g.tagSize {
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return nil, errOpen
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}
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if uint64(len(ciphertext)) > ((1<<32)-2)*uint64(BlockSize)+uint64(g.tagSize) {
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return nil, errOpen
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}
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tag := ciphertext[len(ciphertext)-g.tagSize:]
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ciphertext = ciphertext[:len(ciphertext)-g.tagSize]
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// See GCM spec, section 7.1.
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var counter, tagMask [gcmBlockSize]byte
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if len(nonce) == gcmStandardNonceSize {
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// Init counter to nonce||1
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copy(counter[:], nonce)
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counter[gcmBlockSize-1] = 1
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} else {
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// Otherwise counter = GHASH(nonce)
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gcmSm4Data(&g.bytesProductTable, nonce, &counter)
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gcmSm4Finish(&g.bytesProductTable, &tagMask, &counter, uint64(len(nonce)), uint64(0))
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}
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g.cipher.Encrypt(tagMask[:], counter[:])
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gcmInc32(&counter)
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var expectedTag [gcmTagSize]byte
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gcmSm4Data(&g.bytesProductTable, data, &expectedTag)
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ret, out := subtle.SliceForAppend(dst, len(ciphertext))
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if subtle.InexactOverlap(out, ciphertext) {
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panic("cipher: invalid buffer overlap")
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}
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if len(ciphertext) > 0 {
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gcmSm4Data(&g.bytesProductTable, ciphertext, &expectedTag)
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}
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gcmSm4Finish(&g.bytesProductTable, &tagMask, &expectedTag, uint64(len(ciphertext)), uint64(len(data)))
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if goSubtle.ConstantTimeCompare(expectedTag[:g.tagSize], tag) != 1 {
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for i := range out {
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out[i] = 0
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}
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return nil, errOpen
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}
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g.counterCrypt(out, ciphertext, &counter)
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return ret, nil
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}
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@ -1,5 +1,5 @@
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//go:build amd64
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//go:build amd64 || arm64
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// +build amd64
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// +build amd64 arm64
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package sm4
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package sm4
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@ -4,6 +4,7 @@
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package sm4
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package sm4
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import (
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import (
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"encoding/hex"
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"fmt"
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"fmt"
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"testing"
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"testing"
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)
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)
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@ -141,3 +142,117 @@ func TestBothDataPlaintext(t *testing.T) {
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}
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}
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fmt.Println()
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fmt.Println()
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}
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}
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func createGcm() *gcmAsm {
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key := []byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10}
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c := sm4CipherAsm{sm4Cipher{make([]uint32, rounds), make([]uint32, rounds)}, 4, 64}
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expandKeyAsm(&key[0], &ck[0], &c.enc[0], &c.dec[0])
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c1 := &sm4CipherGCM{c}
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g := &gcmAsm{}
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g.cipher = &c1.sm4CipherAsm
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g.tagSize = 16
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gcmSm4Init(&g.bytesProductTable, g.cipher.enc)
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return g
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}
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var sm4GCMTests = []struct {
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plaintext string
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}{
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{ // case 0: < 16
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"abcdefg",
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},
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{ // case 1: = 16
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"abcdefgabcdefghg",
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},
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{ // case 2: > 16 , < 64
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"abcdefgabcdefghgabcdefgabcdefghgaaa",
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},
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{ // case 3: = 64
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"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghg",
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},
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{ // case 4: > 64, < 128
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"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgaaa",
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},
|
||||||
|
{ // case 5: = 128
|
||||||
|
"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghg",
|
||||||
|
},
|
||||||
|
{ // case 6: 227 > 128, < 256, 128 + 64 + 35
|
||||||
|
"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgaaa",
|
||||||
|
},
|
||||||
|
{ // case 7: = 256
|
||||||
|
"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghg",
|
||||||
|
},
|
||||||
|
{ // case 8: > 256, = 355
|
||||||
|
"abcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgabcdefgabcdefghgaaa",
|
||||||
|
},
|
||||||
|
}
|
||||||
|
|
||||||
|
func initCounter(i byte, counter *[16]byte) {
|
||||||
|
copy(counter[:], []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12})
|
||||||
|
counter[gcmBlockSize-1] = i
|
||||||
|
}
|
||||||
|
|
||||||
|
func resetTag(tag *[16]byte) {
|
||||||
|
for j := 0; j < 16; j++ {
|
||||||
|
tag[j] = 0
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func TestGcmSm4Enc(t *testing.T) {
|
||||||
|
var counter1, counter2 [16]byte
|
||||||
|
gcm := createGcm()
|
||||||
|
var tagOut1, tagOut2 [gcmTagSize]byte
|
||||||
|
|
||||||
|
for i, test := range sm4GCMTests {
|
||||||
|
initCounter(2, &counter1)
|
||||||
|
initCounter(1, &counter2)
|
||||||
|
|
||||||
|
gcmSm4Data(&gcm.bytesProductTable, []byte("emmansun"), &tagOut1)
|
||||||
|
out1 := make([]byte, len(test.plaintext)+gcm.tagSize)
|
||||||
|
gcm.counterCrypt(out1, []byte(test.plaintext), &counter1)
|
||||||
|
gcmSm4Data(&gcm.bytesProductTable, out1[:len(test.plaintext)], &tagOut1)
|
||||||
|
|
||||||
|
out2 := make([]byte, len(test.plaintext)+gcm.tagSize)
|
||||||
|
gcmSm4Data(&gcm.bytesProductTable, []byte("emmansun"), &tagOut2)
|
||||||
|
gcmSm4Enc(&gcm.bytesProductTable, out2, []byte(test.plaintext), &counter2, &tagOut2, gcm.cipher.enc)
|
||||||
|
if hex.EncodeToString(out1) != hex.EncodeToString(out2) {
|
||||||
|
t.Errorf("#%d: out expected %s, got %s", i, hex.EncodeToString(out1), hex.EncodeToString(out2))
|
||||||
|
}
|
||||||
|
if hex.EncodeToString(tagOut1[:]) != hex.EncodeToString(tagOut2[:]) {
|
||||||
|
t.Errorf("#%d: tag expected %s, got %s", i, hex.EncodeToString(tagOut1[:]), hex.EncodeToString(tagOut2[:]))
|
||||||
|
}
|
||||||
|
resetTag(&tagOut1)
|
||||||
|
resetTag(&tagOut2)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func TestGcmSm4Dec(t *testing.T) {
|
||||||
|
var counter1, counter2 [16]byte
|
||||||
|
gcm := createGcm()
|
||||||
|
var tagOut1, tagOut2 [gcmTagSize]byte
|
||||||
|
|
||||||
|
for i, test := range sm4GCMTests {
|
||||||
|
initCounter(2, &counter1)
|
||||||
|
initCounter(1, &counter2)
|
||||||
|
|
||||||
|
gcmSm4Data(&gcm.bytesProductTable, []byte("emmansun"), &tagOut1)
|
||||||
|
out1 := make([]byte, len(test.plaintext)+gcm.tagSize)
|
||||||
|
gcm.counterCrypt(out1, []byte(test.plaintext), &counter1)
|
||||||
|
gcmSm4Data(&gcm.bytesProductTable, out1[:len(test.plaintext)], &tagOut1)
|
||||||
|
|
||||||
|
out1 = out1[:len(test.plaintext)]
|
||||||
|
|
||||||
|
out2 := make([]byte, len(test.plaintext)+gcm.tagSize)
|
||||||
|
gcmSm4Data(&gcm.bytesProductTable, []byte("emmansun"), &tagOut2)
|
||||||
|
gcmSm4Dec(&gcm.bytesProductTable, out2, out1, &counter2, &tagOut2, gcm.cipher.enc)
|
||||||
|
|
||||||
|
if hex.EncodeToString([]byte(test.plaintext)) != hex.EncodeToString(out2[:len(test.plaintext)]) {
|
||||||
|
t.Errorf("#%d: out expected %s, got %s", i, hex.EncodeToString([]byte(test.plaintext)), hex.EncodeToString(out2[:len(test.plaintext)]))
|
||||||
|
}
|
||||||
|
if hex.EncodeToString(tagOut1[:]) != hex.EncodeToString(tagOut2[:]) {
|
||||||
|
t.Errorf("#%d: tag expected %s, got %s", i, hex.EncodeToString(tagOut1[:]), hex.EncodeToString(tagOut2[:]))
|
||||||
|
}
|
||||||
|
resetTag(&tagOut1)
|
||||||
|
resetTag(&tagOut2)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user