diff options
Diffstat (limited to 'crypto/src/asn1/pkcs/ContentInfo.cs')
-rw-r--r-- | crypto/src/asn1/pkcs/ContentInfo.cs | 74 |
1 files changed, 74 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..526a3c48e --- /dev/null +++ b/crypto/src/asn1/pkcs/ContentInfo.cs @@ -0,0 +1,74 @@ +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 == null) + return null; + ContentInfo existing = obj as ContentInfo; + if (existing != null) + return existing; + return new ContentInfo(Asn1Sequence.GetInstance(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); + } + } +} |