GOST3410PrivateKeyParameters.cs :  » PDF » iTextSharp » Org » BouncyCastle » Crypto » Parameters » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.CryptoPro;
using Org.BouncyCastle.Math;

namespace Org.BouncyCastle.Crypto.Parameters{
  public class Gost3410PrivateKeyParameters
    : Gost3410KeyParameters
  {
    private readonly BigInteger x;

    public Gost3410PrivateKeyParameters(
      BigInteger      x,
      Gost3410Parameters  parameters)
      : base(true, parameters)
    {
      if (x.SignValue < 1 || x.BitLength > 256 || x.CompareTo(Parameters.Q) >= 0)
        throw new ArgumentException("Invalid x for GOST3410 private key", "x");

      this.x = x;
    }

    public Gost3410PrivateKeyParameters(
      BigInteger      x,
      DerObjectIdentifier  publicKeyParamSet)
      : base(true, publicKeyParamSet)
    {
      if (x.SignValue < 1 || x.BitLength > 256 || x.CompareTo(Parameters.Q) >= 0)
        throw new ArgumentException("Invalid x for GOST3410 private key", "x");

      this.x = x;
    }

    public BigInteger X
    {
      get { return x; }
    }
  }
}