using Org.BouncyCastle.Math; using Org.BouncyCastle.Utilities; using System; namespace Org.BouncyCastle.Asn1.CryptoPro { public class ECGost3410ParamSetParameters : Asn1Encodable { internal readonly DerInteger p; internal readonly DerInteger q; internal readonly DerInteger a; internal readonly DerInteger b; internal readonly DerInteger x; internal readonly DerInteger y; public BigInteger P => p.PositiveValue; public BigInteger Q => q.PositiveValue; public BigInteger A => a.PositiveValue; 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; Asn1Sequence asn1Sequence = obj as Asn1Sequence; if (asn1Sequence != null) return new ECGost3410ParamSetParameters(asn1Sequence); 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"); a = DerInteger.GetInstance(seq[0]); b = DerInteger.GetInstance(seq[1]); p = DerInteger.GetInstance(seq[2]); q = DerInteger.GetInstance(seq[3]); x = DerInteger.GetInstance(seq[4]); y = DerInteger.GetInstance(seq[5]); } public override Asn1Object ToAsn1Object() { return new DerSequence(a, b, p, q, x, y); } } }