<PackageReference Include="BouncyCastle.Cryptography" Version="2.6.0-beta.106" />

Mod

static class Mod
Modular inversion as implemented in this class is based on the paper "Fast constant-time gcd computation and modular inversion" by Daniel J. Bernstein and Bo-Yin Yang.
public static void CheckedModOddInverse(uint[] m, uint[] x, uint[] z)

public static void CheckedModOddInverseVar(uint[] m, uint[] x, uint[] z)

public static uint Inverse32(uint d)

public static ulong Inverse64(ulong d)

public static uint ModOddInverse(uint[] m, uint[] x, uint[] z)

public static bool ModOddInverseVar(uint[] m, uint[] x, uint[] z)

public static uint ModOddIsCoprime(uint[] m, uint[] x)

public static bool ModOddIsCoprimeVar(uint[] m, uint[] x)

public static uint[] Random(SecureRandom random, uint[] p)