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password.go
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password.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package util
import (
"encoding/base64"
"fmt"
"golang.org/x/crypto/bcrypt"
"tkestack.io/tke/pkg/util/log"
)
// BcryptPassword decodes base64 string and bcrypts password.
func BcryptPassword(password string) (string, error) {
decodedPasswd, err := base64.StdEncoding.DecodeString(password)
if err != nil {
log.Error("Base64 Decode password failed", log.Err(err))
return "", err
}
hashed, err := bcrypt.GenerateFromPassword(decodedPasswd, 10)
if err != nil {
log.Error("Bcrypt hash password failed", log.Err(err))
return "", err
}
log.Debug("password", log.ByteString("pwd", decodedPasswd), log.ByteString("hased", hashed))
return base64.StdEncoding.EncodeToString(hashed), nil
}
// VerifyDecodedPassword verifies password.
func VerifyDecodedPassword(decodedPasswd string, bcryptedPasswd string) error {
if decodedPasswd == "" && bcryptedPasswd == "" {
return nil
}
if decodedPasswd == "" {
return fmt.Errorf("input original password is empty")
}
decodedBytes, err := base64.StdEncoding.DecodeString(decodedPasswd)
if err != nil {
return err
}
hashBytes, err := base64.StdEncoding.DecodeString(bcryptedPasswd)
if err != nil {
return err
}
return bcrypt.CompareHashAndPassword(hashBytes, decodedBytes)
}