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algorithms.go
57 lines (51 loc) · 1.46 KB
/
algorithms.go
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/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package signers
import (
"crypto"
"crypto/hmac"
"crypto/rand"
"crypto/rsa"
"crypto/sha1"
"crypto/x509"
"encoding/base64"
)
func ShaHmac1(source, secret string) string {
key := []byte(secret)
hmac := hmac.New(sha1.New, key)
hmac.Write([]byte(source))
signedBytes := hmac.Sum(nil)
signedString := base64.StdEncoding.EncodeToString(signedBytes)
return signedString
}
func Sha256WithRsa(source, secret string) string {
// block, _ := pem.Decode([]byte(secret))
decodeString, err := base64.StdEncoding.DecodeString(secret)
if err != nil {
panic(err)
}
private, err := x509.ParsePKCS8PrivateKey(decodeString)
if err != nil {
panic(err)
}
h := crypto.Hash.New(crypto.SHA256)
h.Write([]byte(source))
hashed := h.Sum(nil)
signature, err := rsa.SignPKCS1v15(rand.Reader, private.(*rsa.PrivateKey),
crypto.SHA256, hashed)
if err != nil {
panic(err)
}
return base64.StdEncoding.EncodeToString(signature)
}