1 files changed, 80 insertions, 0 deletions
diff --git a/Crypto/src/asn1/pkcs/ContentInfo.cs b/Crypto/src/asn1/pkcs/ContentInfo.cs
new file mode 100644
index 000000000..78213c138
--- /dev/null
+++ b/Crypto/src/asn1/pkcs/ContentInfo.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections;
+
+using Org.BouncyCastle.Asn1;
+
+namespace Org.BouncyCastle.Asn1.Pkcs
+{
+ public class ContentInfo
+ : Asn1Encodable
+ {
+ private readonly DerObjectIdentifier contentType;
+ private readonly Asn1Encodable content;
+
+ public static ContentInfo GetInstance(
+ object obj)
+ {
+ if (obj is ContentInfo)
+ {
+ return (ContentInfo) obj;
+ }
+
+ if (obj is Asn1Sequence)
+ {
+ return new ContentInfo((Asn1Sequence) obj);
+ }
+
+ throw new ArgumentException("Unknown object in factory: " + obj.GetType().FullName, "obj");
+ }
+
+ private ContentInfo(
+ Asn1Sequence seq)
+ {
+ contentType = (DerObjectIdentifier) seq[0];
+
+ if (seq.Count > 1)
+ {
+ content = ((Asn1TaggedObject) seq[1]).GetObject();
+ }
+ }
+
+ public ContentInfo(
+ DerObjectIdentifier contentType,
+ Asn1Encodable content)
+ {
+ this.contentType = contentType;
+ this.content = content;
+ }
+
+ public DerObjectIdentifier ContentType
+ {
+ get { return contentType; }
+ }
+
+ public Asn1Encodable Content
+ {
+ get { return content; }
+ }
+
+ /**
+ * Produce an object suitable for an Asn1OutputStream.
+ * <pre>
+ * ContentInfo ::= Sequence {
+ * contentType ContentType,
+ * content
+ * [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL }
+ * </pre>
+ */
+ public override Asn1Object ToAsn1Object()
+ {
+ Asn1EncodableVector v = new Asn1EncodableVector(contentType);
+
+ if (content != null)
+ {
+ v.Add(new BerTaggedObject(0, content));
+ }
+
+ return new BerSequence(v);
+ }
+ }
+}
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