init commit

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

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+namespace Org.BouncyCastle.Asn1.Cms;
+
+public class MetaData : Asn1Encodable
+{
+	private DerBoolean hashProtected;
+
+	private DerUtf8String fileName;
+
+	private DerIA5String mediaType;
+
+	private Attributes otherMetaData;
+
+	public virtual bool IsHashProtected => hashProtected.IsTrue;
+
+	public virtual DerUtf8String FileName => fileName;
+
+	public virtual DerIA5String MediaType => mediaType;
+
+	public virtual Attributes OtherMetaData => 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)
+	{
+		hashProtected = DerBoolean.GetInstance(seq[0]);
+		int num = 1;
+		if (num < seq.Count && seq[num] is DerUtf8String)
+		{
+			fileName = DerUtf8String.GetInstance(seq[num++]);
+		}
+		if (num < seq.Count && seq[num] is DerIA5String)
+		{
+			mediaType = DerIA5String.GetInstance(seq[num++]);
+		}
+		if (num < seq.Count)
+		{
+			otherMetaData = Attributes.GetInstance(seq[num++]);
+		}
+	}
+
+	public static MetaData GetInstance(object obj)
+	{
+		if (obj is MetaData)
+		{
+			return (MetaData)obj;
+		}
+		if (obj != null)
+		{
+			return new MetaData(Asn1Sequence.GetInstance(obj));
+		}
+		return null;
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(hashProtected);
+		asn1EncodableVector.AddOptional(fileName, mediaType, otherMetaData);
+		return new DerSequence(asn1EncodableVector);
+	}
+}