1 files changed, 108 insertions, 0 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/pkcs/PBKDF2Params.java b/core/src/main/java/org/bouncycastle/asn1/pkcs/PBKDF2Params.java
new file mode 100644
index 00000000..65c0fa85
--- /dev/null
+++ b/core/src/main/java/org/bouncycastle/asn1/pkcs/PBKDF2Params.java
@@ -0,0 +1,108 @@
+package org.bouncycastle.asn1.pkcs;
+
+import java.math.BigInteger;
+import java.util.Enumeration;
+
+import org.bouncycastle.asn1.ASN1EncodableVector;
+import org.bouncycastle.asn1.ASN1Integer;
+import org.bouncycastle.asn1.ASN1Object;
+import org.bouncycastle.asn1.ASN1OctetString;
+import org.bouncycastle.asn1.ASN1Primitive;
+import org.bouncycastle.asn1.ASN1Sequence;
+import org.bouncycastle.asn1.DEROctetString;
+import org.bouncycastle.asn1.DERSequence;
+
+public class PBKDF2Params
+    extends ASN1Object
+{
+    private ASN1OctetString octStr;
+    private ASN1Integer      iterationCount;
+    private ASN1Integer      keyLength;
+
+    public static PBKDF2Params getInstance(
+        Object  obj)
+    {
+        if (obj instanceof PBKDF2Params)
+        {
+            return (PBKDF2Params)obj;
+        }
+
+        if (obj != null)
+        {
+            return new PBKDF2Params(ASN1Sequence.getInstance(obj));
+        }
+
+        return null;
+    }
+    
+    public PBKDF2Params(
+        byte[]  salt,
+        int     iterationCount)
+    {
+        this.octStr = new DEROctetString(salt);
+        this.iterationCount = new ASN1Integer(iterationCount);
+    }
+
+    public PBKDF2Params(
+        byte[]  salt,
+        int     iterationCount,
+        int     keyLength)
+    {
+        this(salt, iterationCount);
+
+        this.keyLength = new ASN1Integer(keyLength);
+    }
+
+    private PBKDF2Params(
+        ASN1Sequence  seq)
+    {
+        Enumeration e = seq.getObjects();
+
+        octStr = (ASN1OctetString)e.nextElement();
+        iterationCount = (ASN1Integer)e.nextElement();
+
+        if (e.hasMoreElements())
+        {
+            keyLength = (ASN1Integer)e.nextElement();
+        }
+        else
+        {
+            keyLength = null;
+        }
+    }
+
+    public byte[] getSalt()
+    {
+        return octStr.getOctets();
+    }
+
+    public BigInteger getIterationCount()
+    {
+        return iterationCount.getValue();
+    }
+
+    public BigInteger getKeyLength()
+    {
+        if (keyLength != null)
+        {
+            return keyLength.getValue();
+        }
+
+        return null;
+    }
+
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector  v = new ASN1EncodableVector();
+
+        v.add(octStr);
+        v.add(iterationCount);
+
+        if (keyLength != null)
+        {
+            v.add(keyLength);
+        }
+
+        return new DERSequence(v);
+    }
+}