1 files changed, 94 insertions, 0 deletions
diff --git a/crypto/src/asn1/cms/MetaData.cs b/crypto/src/asn1/cms/MetaData.cs
new file mode 100644
index 000000000..ad2b5c426
--- /dev/null
+++ b/crypto/src/asn1/cms/MetaData.cs
@@ -0,0 +1,94 @@
+using System;
+
+namespace Org.BouncyCastle.Asn1.Cms
+{
+	public class MetaData
+		: Asn1Encodable
+	{
+		private DerBoolean hashProtected;
+		private DerUtf8String fileName;
+		private DerIA5String  mediaType;
+		private Attributes otherMetaData;
+
+		public MetaData(
+			DerBoolean		hashProtected,
+			DerUtf8String	fileName,
+			DerIA5String	mediaType,
+			Attributes		otherMetaData)
+		{
+			this.hashProtected = hashProtected;
+			this.fileName = fileName;
+			this.mediaType = mediaType;
+			this.otherMetaData = otherMetaData;
+		}
+
+		private MetaData(Asn1Sequence seq)
+		{
+			this.hashProtected = DerBoolean.GetInstance(seq[0]);
+
+			int index = 1;
+
+			if (index < seq.Count && seq[index] is DerUtf8String)
+			{
+				this.fileName = DerUtf8String.GetInstance(seq[index++]);
+			}
+			if (index < seq.Count && seq[index] is DerIA5String)
+			{
+				this.mediaType = DerIA5String.GetInstance(seq[index++]);
+			}
+			if (index < seq.Count)
+			{
+				this.otherMetaData = Attributes.GetInstance(seq[index++]);
+			}
+		}
+
+		public static MetaData GetInstance(object obj)
+		{
+			if (obj is MetaData)
+				return (MetaData)obj;
+
+			if (obj != null)
+				return new MetaData(Asn1Sequence.GetInstance(obj));
+
+			return null;
+		}
+
+		/**
+		 * <pre>
+		 * MetaData ::= SEQUENCE {
+		 *   hashProtected        BOOLEAN,
+		 *   fileName             UTF8String OPTIONAL,
+		 *   mediaType            IA5String OPTIONAL,
+		 *   otherMetaData        Attributes OPTIONAL
+		 * }
+		 * </pre>
+		 * @return
+		 */
+		public override Asn1Object ToAsn1Object()
+		{
+			Asn1EncodableVector v = new Asn1EncodableVector(hashProtected);
+			v.AddOptional(fileName, mediaType, otherMetaData);
+			return new DerSequence(v);
+		}
+
+		public virtual bool IsHashProtected
+		{
+			get { return hashProtected.IsTrue; }
+		}
+
+		public virtual DerUtf8String FileName
+		{
+			get { return fileName; }
+		}
+
+		public virtual DerIA5String MediaType
+		{
+			get { return mediaType; }
+		}
+
+		public virtual Attributes OtherMetaData
+		{
+			get { return otherMetaData; }
+		}
+	}
+}