public static long[] generatePrimes(byte count, int maxValue = ushort.MaxValue)
{
var rnds = new System.Collections.Generic.List <long>();
var p = new long[count];
byte found = 0;
if (maxValue / count < System.Math.Log(maxValue))
{
throw new System.ArgumentOutOfRangeException();
}
while (found < count)
{
rnds.AddRange(Utils.PseudoRandoms(100, maxValue));
foreach (var num in rnds)
{
if (found < count && PrimeTests.MillerRabinTests(num))
{
p[found] = num;
found++;
}
}
rnds.Clear();
}
return(p);
}
public static RsaParams generateRSAPair()
{
var rnds = new System.Collections.Generic.List <long>();
var ps = PrimeTests.generatePrimes(2, short.MaxValue);
long p = ps[0], q = ps[1];
long n = p * q;
long phiN = (p - 1) * (q - 1);
long e = 2;
while (BigInteger.GreatestCommonDivisor(e, phiN) != 1)
{
e = Utils.PseudoRandoms(1, phiN, 2)[0];
}
long k = 1;
while (((k * phiN + 1) % e) != 0) // || ((k * phiN + 1) / e) == e)
{
k++;
}
long d = (k * phiN + 1) / e;
return(new RsaParams()
{
n = n, d = d, e = e
});
}
