[C#]
public string AES_decrypt(string encryptedDataStr, string key, string iv) { RijndaelManaged rijalg = new RijndaelManaged(); //----------------- //设置 cipher 格式 AES-128-CBC rijalg.KeySize = 128; rijalg.Padding = PaddingMode.PKCS7; rijalg.Mode = CipherMode.CBC; rijalg.Key = Convert.FromBase64String(key); rijalg.IV = Convert.FromBase64String(iv); byte[] encryptedData = Convert.FromBase64String(encryptedDataStr); //解密 ICryptoTransform decryptor = rijalg.CreateDecryptor(rijalg.Key, rijalg.IV); string result; using (MemoryStream msDecrypt = new MemoryStream(encryptedData)) { using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read)) { using (StreamReader srDecrypt = new StreamReader(csDecrypt) { result= srDecrypt.ReadToEnd(); } } } return result; }