1 files changed, 46 insertions, 0 deletions
diff --git a/Crypto/src/asn1/cms/EncryptedContentInfoParser.cs b/Crypto/src/asn1/cms/EncryptedContentInfoParser.cs
new file mode 100644
index 000000000..af748b1b3
--- /dev/null
+++ b/Crypto/src/asn1/cms/EncryptedContentInfoParser.cs
@@ -0,0 +1,46 @@
+using System;
+
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.Asn1.Cms
+{
+ /**
+ * <pre>
+ * EncryptedContentInfo ::= SEQUENCE {
+ * contentType ContentType,
+ * contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier,
+ * encryptedContent [0] IMPLICIT EncryptedContent OPTIONAL
+ * }
+ * </pre>
+ */
+ public class EncryptedContentInfoParser
+ {
+ private DerObjectIdentifier _contentType;
+ private AlgorithmIdentifier _contentEncryptionAlgorithm;
+ private Asn1TaggedObjectParser _encryptedContent;
+
+ public EncryptedContentInfoParser(
+ Asn1SequenceParser seq)
+ {
+ _contentType = (DerObjectIdentifier)seq.ReadObject();
+ _contentEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(seq.ReadObject().ToAsn1Object());
+ _encryptedContent = (Asn1TaggedObjectParser)seq.ReadObject();
+ }
+
+ public DerObjectIdentifier ContentType
+ {
+ get { return _contentType; }
+ }
+
+ public AlgorithmIdentifier ContentEncryptionAlgorithm
+ {
+ get { return _contentEncryptionAlgorithm; }
+ }
+
+ public IAsn1Convertible GetEncryptedContent(
+ int tag)
+ {
+ return _encryptedContent.GetObjectParser(tag, false);
+ }
+ }
+}
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