Go网络编程-密码哈希(bcrypt)
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这个例子将展示如何使用bcrypt哈希密码。为此,我们必须像这样获取golang bcrypt库:
$ go get golang.org/x/crypto/bcrypt
从现在开始,我们编写的每个应用程序都将能够使用这个库。
// passwords.go
package main
import (
"fmt"
"golang.org/x/crypto/bcrypt"
)
func HashPassword(password string) (string, error) {
bytes, err := bcrypt.GenerateFromPassword([]byte(password), 14)
return string(bytes), err
}
func CheckPasswordHash(password, hash string) bool {
err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
return err == nil
}
func main() {
password := "secret"
hash, _ := HashPassword(password) // ignore error for the sake of simplicity
fmt.Println("Password:", password)
fmt.Println("Hash: ", hash)
match := CheckPasswordHash(password, hash)
fmt.Println("Match: ", match)
}
$ go run passwords.go
Password: secret
Hash: $2a$14$ajq8Q7fbtFRQvXpdCq7Jcuy.Rx1h/L4J60Otx.gyNLbAYctGMJ9tK
Match: true