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digest.go
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digest.go
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package digest
import (
"errors"
"github.com/lishimeng/go-log"
)
// SaltingFunc 混淆器
//
// plaintext 明文
type SaltingFunc func(plaintext string) string
// Hash checksum计算器
//
// 自行实现或在 Digests 列表中选择
type Hash func(plain []byte) (digest []byte, err error)
type Verifier func(encoded, plain []byte) (err error)
var defaultDigestFunc = sm3Digest
var defaultVerifyFunc = sm3Verify
var Digests = map[string]Hash{
"SM3": sm3Digest,
"BCRYPT": bcryptDigest,
"SHA512": sha512Digest,
}
var Verifiers = map[string]Verifier{
"SM3": sm3Verify,
"BCRYPT": bcryptVerify,
"SHA512": sha512Verify,
}
var (
ErrPasswordWrong = errors.New("password not match")
)
// Generate 创建密文
//
// plaintext 明文
//
// nanoTime 时间戳 time.UnixNano()
//
// salting SaltingFunc 混淆文生成器,最多只会处理一个,如不提供将使用默认算法
func Generate(plaintext string, nanoTime int64, salting ...SaltingFunc) (r string) {
r = GenerateWithAlg(plaintext, nanoTime, defaultDigestFunc, salting...)
return
}
func GenerateWithAlg(plaintext string, nanoTime int64, alg Hash, salting ...SaltingFunc) (r string) {
r = genPass(plaintext, nanoTime, alg, salting...)
return
}
func Verify(plaintext string, encodedPassword string, nanoTime int64, salting ...SaltingFunc) (r bool) {
r = VerifyWithAlg(plaintext, encodedPassword, nanoTime, defaultVerifyFunc, salting...)
return
}
func VerifyWithAlg(plaintext string, encodedPassword string, nanoTime int64, alg Verifier, salting ...SaltingFunc) (r bool) {
err := verifyPass(encodedPassword, plaintext, nanoTime, alg, salting...)
if err != nil {
log.Debug(err)
}
r = err == nil
return
}