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kdf-sm3: fix buffer length issue

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Sun Yimin 2024-05-21 15:46:59 +08:00 committed by GitHub
parent dc23026764
commit 53cd7522a0
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1 changed files with 5 additions and 3 deletions
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8
sm3/kdf_mult_asm.go
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@ -28,9 +28,11 @@ func copyResult(result []byte, dig *[8]uint32) {
binary.BigEndian.PutUint32(result[28:], dig[7])
}
// state || words
// 1216 = 68 * 4 * 4 + 8 * 4 * 4 = 76 * 16
const preallocSize = 1216
// p || state || words
// p = 64 * 4 * 2 = 512
// state = 8 * 16 = 128
// words = 68 * 16 = 1088
const preallocSize = 1728
func kdfBy4(baseMD *digest, keyLen int, limit int) []byte {
if limit < 4 {