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sm4: reduce slice checking internally

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Sun Yimin 2024-03-27 13:08:27 +08:00 committed by GitHub
parent 34dd5104ee
commit 02258d2351
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1 changed files with 1 additions and 1 deletions
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sm4/cbc_cipher_asm.go
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@ -64,7 +64,7 @@ func (x *cbc) CryptBlocks(dst, src []byte) {
for len(src) >= BlockSize { for len(src) >= BlockSize {
// Write the xor to dst, then encrypt in place. // Write the xor to dst, then encrypt in place.
subtle.XORBytes(dst[:BlockSize], src[:BlockSize], iv) subtle.XORBytes(dst[:BlockSize], src[:BlockSize], iv)
x.b.Encrypt(dst[:BlockSize], dst[:BlockSize]) x.b.encrypt(dst[:BlockSize], dst[:BlockSize])
// Move to the next block with this block as the next iv. // Move to the next block with this block as the next iv.
iv = dst[:BlockSize] iv = dst[:BlockSize]