1 files changed, 87 insertions, 0 deletions
diff --git a/Crypto/src/asn1/cmp/OobCertHash.cs b/Crypto/src/asn1/cmp/OobCertHash.cs
new file mode 100644
index 000000000..63ddff7c4
--- /dev/null
+++ b/Crypto/src/asn1/cmp/OobCertHash.cs
@@ -0,0 +1,87 @@
+using System;
+
+using Org.BouncyCastle.Asn1.Crmf;
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+ public class OobCertHash
+ : Asn1Encodable
+ {
+ private readonly AlgorithmIdentifier hashAlg;
+ private readonly CertId certId;
+ private readonly DerBitString hashVal;
+
+ private OobCertHash(Asn1Sequence seq)
+ {
+ int index = seq.Count - 1;
+
+ hashVal = DerBitString.GetInstance(seq[index--]);
+
+ for (int i = index; i >= 0; i--)
+ {
+ Asn1TaggedObject tObj = (Asn1TaggedObject)seq[i];
+
+ if (tObj.TagNo == 0)
+ {
+ hashAlg = AlgorithmIdentifier.GetInstance(tObj, true);
+ }
+ else
+ {
+ certId = CertId.GetInstance(tObj, true);
+ }
+ }
+ }
+
+ public static OobCertHash GetInstance(object obj)
+ {
+ if (obj is OobCertHash)
+ return (OobCertHash)obj;
+
+ if (obj is Asn1Sequence)
+ return new OobCertHash((Asn1Sequence)obj);
+
+ throw new ArgumentException("Invalid object: " + obj.GetType().Name, "obj");
+ }
+
+ public virtual AlgorithmIdentifier HashAlg
+ {
+ get { return hashAlg; }
+ }
+
+ public virtual CertId CertID
+ {
+ get { return certId; }
+ }
+
+ /**
+ * <pre>
+ * OobCertHash ::= SEQUENCE {
+ * hashAlg [0] AlgorithmIdentifier OPTIONAL,
+ * certId [1] CertId OPTIONAL,
+ * hashVal BIT STRING
+ * -- hashVal is calculated over the Der encoding of the
+ * -- self-signed certificate with the identifier certID.
+ * }
+ * </pre>
+ * @return a basic ASN.1 object representation.
+ */
+ public override Asn1Object ToAsn1Object()
+ {
+ Asn1EncodableVector v = new Asn1EncodableVector();
+ AddOptional(v, 0, hashAlg);
+ AddOptional(v, 1, certId);
+ v.Add(hashVal);
+ return new DerSequence(v);
+ }
+
+ private void AddOptional(Asn1EncodableVector v, int tagNo, Asn1Encodable obj)
+ {
+ if (obj != null)
+ {
+ v.Add(new DerTaggedObject(true, tagNo, obj));
+ }
+ }
+ }
+}
+
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