Initial Commit

iTechSharp/srcbc/asn1/x509/AttributeCertificate.cs

@@ -0,0 +1,85 @@
+using System;
+
+using Org.BouncyCastle.Asn1;
+
+namespace Org.BouncyCastle.Asn1.X509
+{
+    public class AttributeCertificate
+        : Asn1Encodable
+    {
+        private readonly AttributeCertificateInfo	acinfo;
+        private readonly AlgorithmIdentifier		signatureAlgorithm;
+        private readonly DerBitString				signatureValue;
+
+		/**
+         * @param obj
+         * @return
+         */
+        public static AttributeCertificate GetInstance(
+			object obj)
+        {
+            if (obj is AttributeCertificate)
+            {
+                return (AttributeCertificate) obj;
+            }
+
+			if (obj is Asn1Sequence)
+            {
+                return new AttributeCertificate((Asn1Sequence) obj);
+            }
+
+			throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
+		}
+
+		public AttributeCertificate(
+            AttributeCertificateInfo	acinfo,
+            AlgorithmIdentifier			signatureAlgorithm,
+            DerBitString				signatureValue)
+        {
+            this.acinfo = acinfo;
+            this.signatureAlgorithm = signatureAlgorithm;
+            this.signatureValue = signatureValue;
+        }
+
+		private AttributeCertificate(
+            Asn1Sequence seq)
+        {
+			if (seq.Count != 3)
+				throw new ArgumentException("Bad sequence size: " + seq.Count);
+
+			this.acinfo = AttributeCertificateInfo.GetInstance(seq[0]);
+            this.signatureAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]);
+            this.signatureValue = DerBitString.GetInstance(seq[2]);
+        }
+
+		public AttributeCertificateInfo ACInfo
+		{
+			get { return acinfo; }
+		}
+
+		public AlgorithmIdentifier SignatureAlgorithm
+		{
+			get { return signatureAlgorithm; }
+		}
+
+		public DerBitString SignatureValue
+		{
+			get { return signatureValue; }
+		}
+
+		/**
+         * Produce an object suitable for an Asn1OutputStream.
+         * <pre>
+         *  AttributeCertificate ::= Sequence {
+         *       acinfo               AttributeCertificateInfo,
+         *       signatureAlgorithm   AlgorithmIdentifier,
+         *       signatureValue       BIT STRING
+         *  }
+         * </pre>
+         */
+        public override Asn1Object ToAsn1Object()
+        {
+			return new DerSequence(acinfo, signatureAlgorithm, signatureValue);
+        }
+    }
+}