/// <summary> /// Computes this <see cref="BigNumber" /> to the power /// of <paramref name="exponent"/> modulo <paramref name="modulo"/> /// and returns the result. /// /// Precisely, the returned value is <c>z = x^y % m</c>, where /// <c>x</c> is the value of this <see cref="BigNumber" /> instance, /// <c>y</c> the value of <paramref name="exponent"/> and <c>m</c> the /// value of <paramref name="modulo"/>. /// /// The computation is not secure. For a secure variant see /// <see cref="BigNumber.ModExp(SecureBigNumber, BigNumber)" />. /// </summary> /// <param name="exponent">The exponent which to raise this <see cref="BigNumber" /> to.</param> /// <param name="modulo">The modulo for the exponentiation.</param> /// <returns> /// A <see cref="BigNumber" /> instance with value<c>z</c>. /// </returns> public BigNumber ModExp(BigNumber exponent, BigNumber modulo) { using (var ctx = BigNumberContextHandle.CreateSecure()) { var result = new BigNumber(); BigNumberHandle.ModExp(result.Handle, Handle, exponent.Handle, modulo.Handle, ctx); return(result); } }