1 files changed, 100 insertions, 0 deletions
diff --git a/crypto/src/asn1/cmp/PbmParameter.cs b/crypto/src/asn1/cmp/PbmParameter.cs
new file mode 100644
index 000000000..59b1bd7bb
--- /dev/null
+++ b/crypto/src/asn1/cmp/PbmParameter.cs
@@ -0,0 +1,100 @@
+using System;
+
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.Asn1.Cmp
+{
+    public class PbmParameter
+        : Asn1Encodable
+    {
+        private Asn1OctetString salt;
+        private AlgorithmIdentifier owf;
+        private DerInteger iterationCount;
+        private AlgorithmIdentifier mac;
+
+        private PbmParameter(Asn1Sequence seq)
+        {
+            salt = Asn1OctetString.GetInstance(seq[0]);
+            owf = AlgorithmIdentifier.GetInstance(seq[1]);
+            iterationCount = DerInteger.GetInstance(seq[2]);
+            mac = AlgorithmIdentifier.GetInstance(seq[3]);
+        }
+
+        public static PbmParameter GetInstance(object obj)
+        {
+            if (obj is PbmParameter)
+                return (PbmParameter)obj;
+
+            if (obj is Asn1Sequence)
+                return new PbmParameter((Asn1Sequence)obj);
+
+            throw new ArgumentException("Invalid object: " + obj.GetType().Name, "obj");
+        }
+
+        public PbmParameter(
+            byte[] salt,
+            AlgorithmIdentifier owf,
+            int iterationCount,
+            AlgorithmIdentifier mac)
+            : this(new DerOctetString(salt), owf, new DerInteger(iterationCount), mac)
+        {
+        }
+
+        public PbmParameter(
+            Asn1OctetString salt,
+            AlgorithmIdentifier owf,
+            DerInteger iterationCount,
+            AlgorithmIdentifier mac)
+        {
+            this.salt = salt;
+            this.owf = owf;
+            this.iterationCount = iterationCount;
+            this.mac = mac;
+        }
+
+        public virtual Asn1OctetString Salt
+        {
+            get { return salt; }
+        }
+
+        public virtual AlgorithmIdentifier Owf
+        {
+            get { return owf; }
+        }
+
+        public virtual DerInteger IterationCount
+        {
+            get { return iterationCount; }
+        }
+
+        public virtual AlgorithmIdentifier Mac
+        {
+            get { return mac; }
+        }
+
+        /**
+         * <pre>
+         *  PbmParameter ::= SEQUENCE {
+         *                        salt                OCTET STRING,
+         *                        -- note:  implementations MAY wish to limit acceptable sizes
+         *                        -- of this string to values appropriate for their environment
+         *                        -- in order to reduce the risk of denial-of-service attacks
+         *                        owf                 AlgorithmIdentifier,
+         *                        -- AlgId for a One-Way Function (SHA-1 recommended)
+         *                        iterationCount      INTEGER,
+         *                        -- number of times the OWF is applied
+         *                        -- note:  implementations MAY wish to limit acceptable sizes
+         *                        -- of this integer to values appropriate for their environment
+         *                        -- in order to reduce the risk of denial-of-service attacks
+         *                        mac                 AlgorithmIdentifier
+         *                        -- the MAC AlgId (e.g., DES-MAC, Triple-DES-MAC [PKCS11],
+         *    }   -- or HMAC [RFC2104, RFC2202])
+         * </pre>
+         * @return a basic ASN.1 object representation.
+         */
+        public override Asn1Object ToAsn1Object()
+        {
+            return new DerSequence(salt, owf, iterationCount, mac);
+        }
+    }
+}