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);
+ }
+ }
+}
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