/
password.go
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/
password.go
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// Copyright 2020 Wearless Tech Inc 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
//
// 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 crypto
import (
"crypto/rand"
"encoding/hex"
"golang.org/x/crypto/bcrypt"
)
// HashPassword - stronger encryption for storing passwords
func HashPassword(password string) (string, error) {
bytes, err := bcrypt.GenerateFromPassword([]byte(password), 14)
return string(bytes), err
}
// CheckPasswordHash if the hash (usually stored in database) matches users entered password
func CheckPasswordHash(password, hash string) bool {
err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
return err == nil
}
// GenerateSecretKey generated n-byte secret key and returns in hex format string
func GenerateSecretKey(numBytes int) (string, error) {
key := make([]byte, numBytes)
_, err := rand.Read(key)
if err != nil {
return "", err
}
dst := make([]byte, hex.EncodedLen(len(key)))
hex.Encode(dst, key)
return string(dst), nil
}