feat: password.

password/interface.go

@@ -0,0 +1,29 @@
+package password
+
+import (
+	"errors"
+	"strings"
+)
+
+// Crypto 密码加解密接口
+type Crypto interface {
+	// Encrypt 加密密码，返回加密后的字符串（包含算法标识和盐值）
+	Encrypt(plainPassword string) (encrypted string, err error)
+
+	// Verify 验证密码是否匹配
+	Verify(plainPassword, encrypted string) (bool, error)
+}
+
+func CreateCrypto(algorithm string) (Crypto, error) {
+	algorithm = strings.ToLower(algorithm)
+	switch algorithm {
+	case "bcrypt":
+		return NewBCryptCrypto(), nil
+	case "pbkdf2":
+		return NewPBKDF2Crypto(), nil
+	case "argon2":
+		return NewArgon2Crypto(), nil
+	default:
+		return nil, errors.New("不支持的加密算法")
+	}
+}