init: init refactor

common/utils/hash/hash.go

@@ -0,0 +1,27 @@
+package hash
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+// BcryptHash 使用bcrypt对密码进行加密
+func BcryptHash(password string) string {
+	bytes, _ := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	return string(bytes)
+}
+
+// BcryptCheck 对比明文密码和数据库的哈希值
+func BcryptCheck(password, hash string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	return err == nil
+}
+
+// MD5 计算MD5哈希值
+func MD5(str []byte) string {
+	h := md5.New()
+	h.Write(str)
+	return hex.EncodeToString(h.Sum(nil))
+}