internal int KeyEncryption(int msg, string enckey)
{
try
{
byte[] plain, enc, iv;
plain = IntToBytes(msg);
iv = GetRandomBytes(16);
if (AES == null)
{
AES = new AEScustom();
}
AES.Key = Hex2Bytes(enckey);
AES.Mode = CipherMode.CBC;
AES.Padding = PaddingMode.PKCS7;
AES.IV = iv;
enc = AES.Encrypt(plain);
KeyBc = ToHexInt(ref iv, 0, 16, string.Empty) + ToHexInt(ref enc, 0, enc.Length, string.Empty);
return(KeyBc);
}
catch (Exception e) when(e is Exception || e is CryptographicUnexpectedOperationException)
{
return(0);
}
}
internal Encryption(string msg, string enckey)
{
string s = string.Empty;
try
{
AES = new AEScustom();
byte[] plain, enc, iv;
plain = StringToBytes(ref msg);
iv = GetRandomBytes(16);
if (AES == null)
{
return;
}
AES.Key = Hex2Bytes(enckey);
AES.Mode = CipherMode.CBC;
AES.Padding = PaddingMode.PKCS7;
AES.IV = iv;
enc = AES.Encrypt(plain);
}
catch (Exception e) when(e is Exception || e is CryptographicUnexpectedOperationException)
{
success = false;
exception = e.Message;
return;
}
}
