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