init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/Cms/AuthenticatedData.cs

@@ -0,0 +1,174 @@
+using System;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.Cms;
+
+public class AuthenticatedData : Asn1Encodable
+{
+	private DerInteger version;
+
+	private OriginatorInfo originatorInfo;
+
+	private Asn1Set recipientInfos;
+
+	private AlgorithmIdentifier macAlgorithm;
+
+	private AlgorithmIdentifier digestAlgorithm;
+
+	private ContentInfo encapsulatedContentInfo;
+
+	private Asn1Set authAttrs;
+
+	private Asn1OctetString mac;
+
+	private Asn1Set unauthAttrs;
+
+	public DerInteger Version => version;
+
+	public OriginatorInfo OriginatorInfo => originatorInfo;
+
+	public Asn1Set RecipientInfos => recipientInfos;
+
+	public AlgorithmIdentifier MacAlgorithm => macAlgorithm;
+
+	public AlgorithmIdentifier DigestAlgorithm => digestAlgorithm;
+
+	public ContentInfo EncapsulatedContentInfo => encapsulatedContentInfo;
+
+	public Asn1Set AuthAttrs => authAttrs;
+
+	public Asn1OctetString Mac => mac;
+
+	public Asn1Set UnauthAttrs => unauthAttrs;
+
+	public AuthenticatedData(OriginatorInfo originatorInfo, Asn1Set recipientInfos, AlgorithmIdentifier macAlgorithm, AlgorithmIdentifier digestAlgorithm, ContentInfo encapsulatedContent, Asn1Set authAttrs, Asn1OctetString mac, Asn1Set unauthAttrs)
+	{
+		if ((digestAlgorithm != null || authAttrs != null) && (digestAlgorithm == null || authAttrs == null))
+		{
+			throw new ArgumentException("digestAlgorithm and authAttrs must be set together");
+		}
+		version = new DerInteger(CalculateVersion(originatorInfo));
+		this.originatorInfo = originatorInfo;
+		this.macAlgorithm = macAlgorithm;
+		this.digestAlgorithm = digestAlgorithm;
+		this.recipientInfos = recipientInfos;
+		encapsulatedContentInfo = encapsulatedContent;
+		this.authAttrs = authAttrs;
+		this.mac = mac;
+		this.unauthAttrs = unauthAttrs;
+	}
+
+	private AuthenticatedData(Asn1Sequence seq)
+	{
+		int num = 0;
+		version = (DerInteger)seq[num++];
+		Asn1Encodable asn1Encodable = seq[num++];
+		if (asn1Encodable is Asn1TaggedObject)
+		{
+			originatorInfo = OriginatorInfo.GetInstance((Asn1TaggedObject)asn1Encodable, explicitly: false);
+			asn1Encodable = seq[num++];
+		}
+		recipientInfos = Asn1Set.GetInstance(asn1Encodable);
+		macAlgorithm = AlgorithmIdentifier.GetInstance(seq[num++]);
+		asn1Encodable = seq[num++];
+		if (asn1Encodable is Asn1TaggedObject)
+		{
+			digestAlgorithm = AlgorithmIdentifier.GetInstance((Asn1TaggedObject)asn1Encodable, explicitly: false);
+			asn1Encodable = seq[num++];
+		}
+		encapsulatedContentInfo = ContentInfo.GetInstance(asn1Encodable);
+		asn1Encodable = seq[num++];
+		if (asn1Encodable is Asn1TaggedObject)
+		{
+			authAttrs = Asn1Set.GetInstance((Asn1TaggedObject)asn1Encodable, explicitly: false);
+			asn1Encodable = seq[num++];
+		}
+		mac = Asn1OctetString.GetInstance(asn1Encodable);
+		if (seq.Count > num)
+		{
+			unauthAttrs = Asn1Set.GetInstance((Asn1TaggedObject)seq[num], explicitly: false);
+		}
+	}
+
+	public static AuthenticatedData GetInstance(Asn1TaggedObject obj, bool isExplicit)
+	{
+		return GetInstance(Asn1Sequence.GetInstance(obj, isExplicit));
+	}
+
+	public static AuthenticatedData GetInstance(object obj)
+	{
+		if (obj == null || obj is AuthenticatedData)
+		{
+			return (AuthenticatedData)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new AuthenticatedData((Asn1Sequence)obj);
+		}
+		throw new ArgumentException("Invalid AuthenticatedData: " + Platform.GetTypeName(obj));
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(version);
+		if (originatorInfo != null)
+		{
+			asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 0, originatorInfo));
+		}
+		asn1EncodableVector.Add(recipientInfos, macAlgorithm);
+		if (digestAlgorithm != null)
+		{
+			asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 1, digestAlgorithm));
+		}
+		asn1EncodableVector.Add(encapsulatedContentInfo);
+		if (authAttrs != null)
+		{
+			asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 2, authAttrs));
+		}
+		asn1EncodableVector.Add(mac);
+		if (unauthAttrs != null)
+		{
+			asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 3, unauthAttrs));
+		}
+		return new BerSequence(asn1EncodableVector);
+	}
+
+	public static int CalculateVersion(OriginatorInfo origInfo)
+	{
+		if (origInfo == null)
+		{
+			return 0;
+		}
+		int result = 0;
+		foreach (object certificate in origInfo.Certificates)
+		{
+			if (certificate is Asn1TaggedObject)
+			{
+				Asn1TaggedObject asn1TaggedObject = (Asn1TaggedObject)certificate;
+				if (asn1TaggedObject.TagNo == 2)
+				{
+					result = 1;
+				}
+				else if (asn1TaggedObject.TagNo == 3)
+				{
+					result = 3;
+					break;
+				}
+			}
+		}
+		foreach (object crl in origInfo.Crls)
+		{
+			if (crl is Asn1TaggedObject)
+			{
+				Asn1TaggedObject asn1TaggedObject2 = (Asn1TaggedObject)crl;
+				if (asn1TaggedObject2.TagNo == 1)
+				{
+					result = 3;
+					break;
+				}
+			}
+		}
+		return result;
+	}
+}