1 files changed, 110 insertions, 0 deletions
diff --git a/crypto/src/asn1/esf/CrlIdentifier.cs b/crypto/src/asn1/esf/CrlIdentifier.cs
new file mode 100644
index 000000000..dfff7d838
--- /dev/null
+++ b/crypto/src/asn1/esf/CrlIdentifier.cs
@@ -0,0 +1,110 @@
+using System;
+
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Math;
+
+namespace Org.BouncyCastle.Asn1.Esf
+{
+	/// <remarks>
+	/// RFC 3126: 4.2.2 Complete Revocation Refs Attribute Definition
+	/// <code>
+	/// CrlIdentifier ::= SEQUENCE 
+	/// {
+	/// 	crlissuer		Name,
+	/// 	crlIssuedTime	UTCTime,
+	/// 	crlNumber		INTEGER OPTIONAL
+	/// }
+	/// </code>
+	/// </remarks>
+	public class CrlIdentifier
+		: Asn1Encodable
+	{
+		private readonly X509Name	crlIssuer;
+		private readonly DerUtcTime	crlIssuedTime;
+		private readonly DerInteger	crlNumber;
+
+		public static CrlIdentifier GetInstance(
+			object obj)
+		{
+			if (obj == null || obj is CrlIdentifier)
+				return (CrlIdentifier) obj;
+
+			if (obj is Asn1Sequence)
+				return new CrlIdentifier((Asn1Sequence) obj);
+
+			throw new ArgumentException(
+				"Unknown object in 'CrlIdentifier' factory: "
+					+ obj.GetType().Name,
+				"obj");
+		}
+
+		private CrlIdentifier(
+			Asn1Sequence seq)
+		{
+			if (seq == null)
+				throw new ArgumentNullException("seq");
+			if (seq.Count < 2 || seq.Count > 3)
+				throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
+
+			this.crlIssuer = X509Name.GetInstance(seq[0]);
+			this.crlIssuedTime = DerUtcTime.GetInstance(seq[1]);
+
+			if (seq.Count > 2)
+			{
+				this.crlNumber = DerInteger.GetInstance(seq[2]);
+			}
+		}
+
+		public CrlIdentifier(
+			X509Name	crlIssuer,
+			DateTime	crlIssuedTime)
+			: this(crlIssuer, crlIssuedTime, null)
+		{
+		}
+
+		public CrlIdentifier(
+			X509Name	crlIssuer,
+			DateTime	crlIssuedTime,
+			BigInteger	crlNumber)
+		{
+			if (crlIssuer == null)
+				throw new ArgumentNullException("crlIssuer");
+
+			this.crlIssuer = crlIssuer;
+			this.crlIssuedTime = new DerUtcTime(crlIssuedTime);
+
+			if (crlNumber != null)
+			{
+				this.crlNumber = new DerInteger(crlNumber);
+			}
+		}
+
+		public X509Name CrlIssuer
+		{
+			get { return crlIssuer; }
+		}
+
+		public DateTime CrlIssuedTime
+		{
+			get { return crlIssuedTime.ToAdjustedDateTime(); }
+		}
+
+		public BigInteger CrlNumber
+		{
+			get { return crlNumber == null ? null : crlNumber.Value; }
+		}
+
+		public override Asn1Object ToAsn1Object()
+		{
+			Asn1EncodableVector v = new Asn1EncodableVector(
+				crlIssuer.ToAsn1Object(), crlIssuedTime);
+
+			if (crlNumber != null)
+			{
+				v.Add(crlNumber);
+			}
+
+			return new DerSequence(v);
+		}
+	}
+}