Add tool dir.

code/tool/util/util_encode.go

@@ -0,0 +1,30 @@
+package util
+
+import (
+	"crypto/md5"
+	"fmt"
+	"golang.org/x/crypto/bcrypt"
+)
+
+//给密码字符串加密
+func GetMd5(raw string) string {
+	return fmt.Sprintf("%x", md5.Sum([]byte(raw)))
+}
+
+func GetBcrypt(raw string) string {
+
+	password := []byte(raw)
+	hashedPassword, err := bcrypt.GenerateFromPassword(password, bcrypt.DefaultCost)
+	if err != nil {
+		panic(err)
+	}
+	return string(hashedPassword)
+}
+
+func MatchBcrypt(raw string, bcryptStr string) bool {
+
+	err := bcrypt.CompareHashAndPassword([]byte(bcryptStr), []byte(raw))
+
+	return err == nil
+
+}