/// <summary>
/// AES256 암호화
/// 원래 키도 파라미터로 있었으나 내부에 선언된 키를 무조건 사용하도록 강제하기 위해 파라미터에서 제외
/// </summary>
/// <param name="Input">암호화할 string</param>
/// <returns>암호화된 값</returns>
public static String Encrypt(string Input)
{
string result = string.Empty;
try
{
RijndaelManaged aes = new RijndaelManaged();
aes.KeySize = 256;
aes.BlockSize = 128;
aes.Mode = CipherMode.CBC;
aes.Padding = PaddingMode.PKCS7;
aes.Key = Encoding.UTF8.GetBytes(AesKey);
aes.IV = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
var encrypt = aes.CreateEncryptor(aes.Key, aes.IV);
byte[] xBuff = null;
using (var ms = new MemoryStream())
{
using (var cs = new CryptoStream(ms, encrypt, CryptoStreamMode.Write))
{
byte[] xXml = Encoding.UTF8.GetBytes(Input);
cs.Write(xXml, 0, xXml.Length);
}
xBuff = ms.ToArray();
}
result = Convert.ToBase64String(xBuff);
}
catch (Exception e)
{
string error = string.Format("CSecureUtil.Encrypt: input={0}|key={1}|exception={2}", Input, e.Message);
CLog.debug(logger, error);
}
return(result);
}