/// <summary>
/// 加密，与 ShoveEIMS3 的 C++ 代码兼容
/// </summary>
/// <param name="input"></param>
/// <param name="key"></param>
/// <param name="encodingName"></param>
/// <returns></returns>
public static string EncryptSES(string input, string key, string encodingName)
{
Ses ses = new Ses(key, encodingName);
byte[] byte_input = Encoding.GetEncoding(encodingName).GetBytes(input);
int len = ses.GetEncryptResultLength(byte_input);
byte[] output = new byte[len];
ses.Encrypt(byte_input, output);
return(Convert.ToBase64String(output));
}
/// <summary>
/// 解密，与 ShoveEIMS3 的 C++ 代码兼容
/// </summary>
/// <param name="input"></param>
/// <param name="key"></param>
/// <param name="encodingName"></param>
/// <returns></returns>
public static string DecryptSES(string input, string key, string encodingName)
{
if (String.IsNullOrEmpty(input))
{
return("");
}
Ses ses = new Ses(key, encodingName);
byte[] byte_input = Convert.FromBase64String(input);
byte[] temp_output = new byte[input.Length];
int output_len = 0;
ses.Decrypt(byte_input, byte_input.Length, temp_output, ref output_len);
byte[] ouput = new byte[output_len];
Array.Copy(temp_output, ouput, output_len);
return(Encoding.GetEncoding(encodingName).GetString(ouput));
}