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encrypt_hash.go
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encrypt_hash.go
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package sm9
import (
go_hash "hash"
"crypto/hmac"
"crypto/sha256"
"github.com/deatil/go-cryptobin/hash/sm3"
)
type HashHmac struct {
h func() go_hash.Hash
}
func NewHashHmac(h func() go_hash.Hash) IHash {
return &HashHmac{h}
}
func (this *HashHmac) Size() int {
return this.h().Size()
}
func (this *HashHmac) Mac(k, c []byte) []byte {
hash := hmac.New(this.h, k)
hash.Write(c)
return hash.Sum(nil)
}
type HashMac struct {
h func() go_hash.Hash
}
func NewHashMac(h func() go_hash.Hash) IHash {
return &HashMac{h}
}
func (this *HashMac) Size() int {
return this.h().Size()
}
func (this *HashMac) Mac(k, c []byte) []byte {
hash := this.h()
hash.Write(c)
hash.Write(k)
return hash.Sum(nil)
}
// HmacSM3
var HmacSM3Hash = NewHashHmac(sm3.New)
// HmacSHA256
var HmacSHA256Hash = NewHashHmac(sha256.New)
// SM3Hash
var SM3Hash = NewHashMac(sm3.New)
// SHA256Hash
var SHA256Hash = NewHashMac(sha256.New)
// 默认 Hash
var DefaultHash = HmacSHA256Hash