public async Task <RSAKeyPair[]> GenerateKeyPairs(BigInteger p, BigInteger q)
{
BigInteger n = p * q;
BigInteger pin = (p - 1) * (q - 1);
var encryptKey = new RSAKeyPair();
var decryptKey = new RSAKeyPair();
encryptKey.number = decryptKey.number = n;
encryptKey.value = await CalculateEncryptionKey(pin);
decryptKey.value = await CalculateDecryptionKey(pin, encryptKey.value);
return(new RSAKeyPair[] { encryptKey, decryptKey });
}
public async Task <IDictionary <byte, byte> > CreateByteMap(RSAKeyPair keyPair, IProgress <long> progress = null)
{
Dictionary <byte, byte> map = new Dictionary <byte, byte>();
for (int i = 0; i < 256; i++)
{
byte idx = Convert.ToByte(i);
byte b = ConvertByte(ref keyPair, idx);
map.Add(idx, b);
if (i % 16 == 0)
{
progress?.Report(i);
await Task.Delay(1);
}
}
return(map);
}
private byte ConvertByte(ref RSAKeyPair keyPair, byte b) => Convert.ToByte((int)(BaseEncrypter.Encrypt(keyPair, b) % Prime));
public BigInteger Encrypt(RSAKeyPair keyPair, BigInteger b)
{
return(BigInteger.ModPow(b, keyPair.value, keyPair.number));
}