使用AES算法加密字符串

private static string Key = "tFnMncgmchx2FOAsbPVjsmxDg0T5LDc+c6ModHcNbyE=";private static string IV = "8zXcR7dfyraBTrNUNfWC2A==";/// <summary>/// 加密字符串/// </summary>private static string EncryptString(string value){ MemoryStream ms = new MemoryStream(); CryptoStream cs; byte[] buffer; ICryptoTransform encryptor = Rijndael.Create().CreateEncryptor(Convert.FromBase64String(Key), Convert.FromBase64String(IV)); buffer = Encoding.UTF8.GetBytes(value); cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write); cs.Write(buffer, 0, buffer.Length); cs.FlushFinalBlock(); cs.Close(); return Convert.ToBase64String(ms.ToArray());}/// <summary>/// 解密字符串/// </summary>private static string DecryptString(string value){ MemoryStream ms = new MemoryStream(); CryptoStream cs; byte[] buffer; ICryptoTransform decryptor = Rijndael.Create().CreateDecryptor(Convert.FromBase64String(Key), Convert.FromBase64String(IV)); buffer = Convert.FromBase64String(value); cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Write); cs.Write(buffer, 0, buffer.Length); cs.FlushFinalBlock(); cs.Close(); return Encoding.UTF8.GetString(ms.ToArray());}