init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/X509/DsaParameter.cs

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+using System;
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.X509;
+
+public class DsaParameter : Asn1Encodable
+{
+	internal readonly DerInteger p;
+
+	internal readonly DerInteger q;
+
+	internal readonly DerInteger g;
+
+	public BigInteger P => p.PositiveValue;
+
+	public BigInteger Q => q.PositiveValue;
+
+	public BigInteger G => g.PositiveValue;
+
+	public static DsaParameter GetInstance(Asn1TaggedObject obj, bool explicitly)
+	{
+		return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
+	}
+
+	public static DsaParameter GetInstance(object obj)
+	{
+		if (obj == null || obj is DsaParameter)
+		{
+			return (DsaParameter)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new DsaParameter((Asn1Sequence)obj);
+		}
+		throw new ArgumentException("Invalid DsaParameter: " + Platform.GetTypeName(obj));
+	}
+
+	public DsaParameter(BigInteger p, BigInteger q, BigInteger g)
+	{
+		this.p = new DerInteger(p);
+		this.q = new DerInteger(q);
+		this.g = new DerInteger(g);
+	}
+
+	private DsaParameter(Asn1Sequence seq)
+	{
+		if (seq.Count != 3)
+		{
+			throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
+		}
+		p = DerInteger.GetInstance(seq[0]);
+		q = DerInteger.GetInstance(seq[1]);
+		g = DerInteger.GetInstance(seq[2]);
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		return new DerSequence(p, q, g);
+	}
+}