public LucKeyGenerator(LucPrime prime, BigInteger message)
{
P = message;
PrimeNumbers = prime;
if (PrimeNumbers.N <= message)
{
throw new ArgumentException("N need to be greater than message");
}
PublicKey = new LucPublicKey(GenerateSimpleE(), PrimeNumbers.N);
PrivateKey = new LucPrivateKey(getSmalld(PublicKey), PrimeNumbers.N);
}
private BigInteger GetGCDPublicKey(LucPrime lucPrimeNumbers)
{
Random r = new Random();
BigInteger e = 0;
BigInteger t = BigInteger.Multiply(lucPrimeNumbers.P - 1, lucPrimeNumbers.Q - 1) * BigInteger.Multiply(lucPrimeNumbers.P + 1, lucPrimeNumbers.Q + 1);
do
{
e = r.Next(MinKeyValue, MaxKeyValue);
} while (BigInteger.GreatestCommonDivisor(e, t) != 1);
return(e);
}
/// <summary>
/// calculate nambers of Legand
/// </summary>
/// <param name="primeNumbers">Structure contains two prime numbers</param>
/// <param name="message">open text which need to encrypt</param>
public LegendreNumbers(LucPrime primeNumbers, BigInteger message) : this(message : message, q : primeNumbers.Q, p : primeNumbers.P)
{
}
public LucPublicKey(LucPrime lucPrimeNumbers, int size) : this(size)
{
N = lucPrimeNumbers.N;
e = GetGCDPublicKey(lucPrimeNumbers);
}
public LucPublicKey(LucPrime lucPrimeNumbers) : this((int)defaultSize)
{
N = lucPrimeNumbers.N;
e = GetGCDPublicKey(lucPrimeNumbers);
}