AES암호화public static string Encrypt(string textToEncrypt, string key) { RijndaelManaged rijndaelCipher = new RijndaelManaged(); rijndaelCipher.Mode = CipherMode.CBC; rijndaelCipher.Padding = PaddingMode.PKCS7; rijndaelCipher.KeySize = 128; rijndaelCipher.BlockSize = 128; byte[] pwdBytes = Encoding.UTF8.GetBytes(key); byte[] keyBytes = new byte[16]; int len = pwdBytes.Length; if (len > keyBytes.Le..