1 files changed, 67 insertions, 0 deletions
diff --git a/crypto/src/asn1/mozilla/PublicKeyAndChallenge.cs b/crypto/src/asn1/mozilla/PublicKeyAndChallenge.cs
new file mode 100644
index 000000000..1e08b809d
--- /dev/null
+++ b/crypto/src/asn1/mozilla/PublicKeyAndChallenge.cs
@@ -0,0 +1,67 @@
+using System;
+
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.Asn1.Mozilla
+{
+	/**
+	 * This is designed to parse
+	 * the PublicKeyAndChallenge created by the KEYGEN tag included by
+	 * Mozilla based browsers.
+	 *  <pre>
+	 *  PublicKeyAndChallenge ::= SEQUENCE {
+	 *    spki SubjectPublicKeyInfo,
+	 *    challenge IA5STRING
+	 *  }
+	 *
+	 *  </pre>
+	 */
+	public class PublicKeyAndChallenge
+		: Asn1Encodable
+	{
+		private Asn1Sequence			pkacSeq;
+		private SubjectPublicKeyInfo	spki;
+		private DerIA5String			challenge;
+
+		public static PublicKeyAndChallenge GetInstance(
+			object obj)
+		{
+			if (obj is PublicKeyAndChallenge)
+			{
+				return (PublicKeyAndChallenge) obj;
+			}
+
+			if (obj is Asn1Sequence)
+			{
+				return new PublicKeyAndChallenge((Asn1Sequence) obj);
+			}
+
+			throw new ArgumentException(
+				"unknown object in 'PublicKeyAndChallenge' factory : "
+				+ obj.GetType().Name + ".");
+		}
+
+		public PublicKeyAndChallenge(
+			Asn1Sequence seq)
+		{
+			pkacSeq = seq;
+			spki = SubjectPublicKeyInfo.GetInstance(seq[0]);
+			challenge = DerIA5String.GetInstance(seq[1]);
+		}
+
+		public override Asn1Object ToAsn1Object()
+		{
+			return pkacSeq;
+		}
+
+		public SubjectPublicKeyInfo SubjectPublicKeyInfo
+		{
+			get { return spki; }
+		}
+
+		public DerIA5String Challenge
+		{
+			get { return challenge; }
+		}
+	}
+}