init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/Pkcs/MacData.cs

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+using System;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.Pkcs;
+
+public class MacData : Asn1Encodable
+{
+	internal DigestInfo digInfo;
+
+	internal byte[] salt;
+
+	internal BigInteger iterationCount;
+
+	public DigestInfo Mac => digInfo;
+
+	public BigInteger IterationCount => iterationCount;
+
+	public static MacData GetInstance(object obj)
+	{
+		if (obj is MacData)
+		{
+			return (MacData)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new MacData((Asn1Sequence)obj);
+		}
+		throw new ArgumentException("Unknown object in factory: " + Platform.GetTypeName(obj), "obj");
+	}
+
+	private MacData(Asn1Sequence seq)
+	{
+		digInfo = DigestInfo.GetInstance(seq[0]);
+		salt = ((Asn1OctetString)seq[1]).GetOctets();
+		if (seq.Count == 3)
+		{
+			iterationCount = ((DerInteger)seq[2]).Value;
+		}
+		else
+		{
+			iterationCount = BigInteger.One;
+		}
+	}
+
+	public MacData(DigestInfo digInfo, byte[] salt, int iterationCount)
+	{
+		this.digInfo = digInfo;
+		this.salt = (byte[])salt.Clone();
+		this.iterationCount = BigInteger.ValueOf(iterationCount);
+	}
+
+	public byte[] GetSalt()
+	{
+		return (byte[])salt.Clone();
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(digInfo, new DerOctetString(salt));
+		if (!iterationCount.Equals(BigInteger.One))
+		{
+			asn1EncodableVector.Add(new DerInteger(iterationCount));
+		}
+		return new DerSequence(asn1EncodableVector);
+	}
+}