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using System;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.CryptoPro
{
public class ECGost3410ParamSetParameters
: Asn1Encodable
{
internal readonly DerInteger p, q, a, b, x, y;
public static ECGost3410ParamSetParameters GetInstance(Asn1TaggedObject obj, bool explicitly)
{
return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
}
public static ECGost3410ParamSetParameters GetInstance(object obj)
{
if (obj == null || obj is ECGost3410ParamSetParameters)
return (ECGost3410ParamSetParameters)obj;
if (obj is Asn1Sequence seq)
return new ECGost3410ParamSetParameters(seq);
throw new ArgumentException("Invalid GOST3410Parameter: " + Platform.GetTypeName(obj));
}
public ECGost3410ParamSetParameters(
BigInteger a,
BigInteger b,
BigInteger p,
BigInteger q,
int x,
BigInteger y)
{
this.a = new DerInteger(a);
this.b = new DerInteger(b);
this.p = new DerInteger(p);
this.q = new DerInteger(q);
this.x = new DerInteger(x);
this.y = new DerInteger(y);
}
public ECGost3410ParamSetParameters(
Asn1Sequence seq)
{
if (seq.Count != 6)
throw new ArgumentException("Wrong number of elements in sequence", "seq");
this.a = DerInteger.GetInstance(seq[0]);
this.b = DerInteger.GetInstance(seq[1]);
this.p = DerInteger.GetInstance(seq[2]);
this.q = DerInteger.GetInstance(seq[3]);
this.x = DerInteger.GetInstance(seq[4]);
this.y = DerInteger.GetInstance(seq[5]);
}
public BigInteger P
{
get { return p.PositiveValue; }
}
public BigInteger Q
{
get { return q.PositiveValue; }
}
public BigInteger A
{
get { return a.PositiveValue; }
}
public override Asn1Object ToAsn1Object()
{
return new DerSequence(a, b, p, q, x, y);
}
}
}
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