crypto.go

package crypto

import (
	"crypto/hmac"
	"crypto/md5"
	"crypto/sha1"
	"encoding/hex"
)

// Md5 md5编码
func Md5(str string) (string, error) {
	m := md5.New()
	if _, err := m.Write([]byte(str)); err != nil {
		return "", err
	}
	return hex.EncodeToString(m.Sum(nil)), nil
}

// Hmac hmac编码
func Hmac(key, str string) (string, error) {
	h := hmac.New(md5.New, []byte(key))
	if _, err := h.Write([]byte(str)); err != nil {
		return "", err
	}
	return hex.EncodeToString(h.Sum(nil)), nil
}

// Sha1 sha1编码
func Sha1(str string) (string, error) {
	sh := sha1.New()
	if _, err := sh.Write([]byte(str)); err != nil {
		return "", err
	}
	return hex.EncodeToString(sh.Sum(nil)), nil
}