public byte[] Decrypt(byte[] message)
{
RSAKeys.Key privateKey = RSAKeys.PrivateKey;
var size = privateKey.n.ToByteArray().Length;
List <byte> decrypted = new List <byte>(size * message.Length);
for (var i = 0; i <= message.Length - size; i += size)
{
BigInteger encryptedChar = new BigInteger(message.Skip(i).Take(size).ToArray());
decrypted.AddRange(BigInteger.ModPow(encryptedChar, privateKey.exponent, privateKey.n).ToByteArray());
}
return(decrypted.ToArray());
}
public byte[] Encrypt(byte[] message)
{
RSAKeys.Key publicKey = RSAKeys.PublicKey;
var size = publicKey.n.ToByteArray().Length;
List <byte> encrypted = new List <byte>(size * message.Length);
foreach (var ch in message)
{
byte[] encryptedCharBytes = BigInteger.ModPow(ch, publicKey.exponent, publicKey.n).ToByteArray();
encrypted.AddRange(encryptedCharBytes);
encrypted.AddRange(new byte[size - encryptedCharBytes.Length]);
}
return(encrypted.ToArray());
}