1 files changed, 76 insertions, 0 deletions
diff --git a/Crypto/src/asn1/cms/TimeStampedDataParser.cs b/Crypto/src/asn1/cms/TimeStampedDataParser.cs
new file mode 100644
index 000000000..90307bff9
--- /dev/null
+++ b/Crypto/src/asn1/cms/TimeStampedDataParser.cs
@@ -0,0 +1,76 @@
+using System;
+
+namespace Org.BouncyCastle.Asn1.Cms
+{
+	public class TimeStampedDataParser
+	{
+		private DerInteger version;
+		private DerIA5String dataUri;
+		private MetaData metaData;
+		private Asn1OctetStringParser content;
+		private Evidence temporalEvidence;
+		private Asn1SequenceParser parser;
+		
+		private TimeStampedDataParser(Asn1SequenceParser parser)
+		{
+			this.parser = parser;
+			this.version = DerInteger.GetInstance(parser.ReadObject());
+
+			Asn1Object obj = parser.ReadObject().ToAsn1Object();
+
+			if (obj is DerIA5String)
+			{
+				this.dataUri = DerIA5String.GetInstance(obj);
+				obj = parser.ReadObject().ToAsn1Object();
+			}
+
+            if (//obj is MetaData ||
+                obj is Asn1SequenceParser)
+			{
+				this.metaData = MetaData.GetInstance(obj.ToAsn1Object());
+				obj = parser.ReadObject().ToAsn1Object();
+			}
+
+			if (obj is Asn1OctetStringParser)
+			{
+				this.content = (Asn1OctetStringParser)obj;
+			}
+		}
+
+		public static TimeStampedDataParser GetInstance(object obj)
+		{
+			if (obj is Asn1Sequence)
+				return new TimeStampedDataParser(((Asn1Sequence)obj).Parser);
+
+			if (obj is Asn1SequenceParser)
+				return new TimeStampedDataParser((Asn1SequenceParser)obj);
+
+			return null;
+		}
+		
+		public virtual DerIA5String DataUri
+		{
+			get { return dataUri; }
+		}
+
+		public virtual MetaData MetaData
+		{
+			get { return metaData; }
+		}
+
+		public virtual Asn1OctetStringParser Content
+		{
+			get { return content; }
+		}
+
+		public virtual Evidence GetTemporalEvidence()
+		{
+			if (temporalEvidence == null)
+			{
+				temporalEvidence = Evidence.GetInstance(parser.ReadObject().ToAsn1Object());
+			}
+
+			return temporalEvidence;
+		}
+	}
+}