1 files changed, 93 insertions, 0 deletions
diff --git a/Crypto/src/asn1/ess/ESSCertID.cs b/Crypto/src/asn1/ess/ESSCertID.cs
new file mode 100644
index 000000000..4d449a746
--- /dev/null
+++ b/Crypto/src/asn1/ess/ESSCertID.cs
@@ -0,0 +1,93 @@
+using System;
+
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.Asn1.Ess
+{
+ public class EssCertID
+ : Asn1Encodable
+ {
+ private Asn1OctetString certHash;
+ private IssuerSerial issuerSerial;
+
+ public static EssCertID GetInstance(
+ object o)
+ {
+ if (o == null || o is EssCertID)
+ {
+ return (EssCertID) o;
+ }
+
+ if (o is Asn1Sequence)
+ {
+ return new EssCertID((Asn1Sequence) o);
+ }
+
+ throw new ArgumentException(
+ "unknown object in 'EssCertID' factory : "
+ + o.GetType().Name + ".");
+ }
+
+ /**
+ * constructor
+ */
+ public EssCertID(
+ Asn1Sequence seq)
+ {
+ if (seq.Count < 1 || seq.Count > 2)
+ {
+ throw new ArgumentException("Bad sequence size: " + seq.Count);
+ }
+
+ this.certHash = Asn1OctetString.GetInstance(seq[0]);
+
+ if (seq.Count > 1)
+ {
+ issuerSerial = IssuerSerial.GetInstance(seq[1]);
+ }
+ }
+
+ public EssCertID(
+ byte[] hash)
+ {
+ certHash = new DerOctetString(hash);
+ }
+
+ public EssCertID(
+ byte[] hash,
+ IssuerSerial issuerSerial)
+ {
+ this.certHash = new DerOctetString(hash);
+ this.issuerSerial = issuerSerial;
+ }
+
+ public byte[] GetCertHash()
+ {
+ return certHash.GetOctets();
+ }
+
+ public IssuerSerial IssuerSerial
+ {
+ get { return issuerSerial; }
+ }
+
+ /**
+ * <pre>
+ * EssCertID ::= SEQUENCE {
+ * certHash Hash,
+ * issuerSerial IssuerSerial OPTIONAL }
+ * </pre>
+ */
+ public override Asn1Object ToAsn1Object()
+ {
+ Asn1EncodableVector v = new Asn1EncodableVector(certHash);
+
+ if (issuerSerial != null)
+ {
+ v.Add(issuerSerial);
+ }
+
+ return new DerSequence(v);
+ }
+ }
+}
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