1 files changed, 56 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/KeyDerivationFunc.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/KeyDerivationFunc.java
new file mode 100644
index 000000000..c6240bd01
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/KeyDerivationFunc.java
@@ -0,0 +1,56 @@
+package org.spongycastle.asn1.pkcs;
+
+import org.spongycastle.asn1.ASN1Encodable;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1ObjectIdentifier;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1Sequence;
+import org.spongycastle.asn1.x509.AlgorithmIdentifier;
+
+public class KeyDerivationFunc
+    extends ASN1Object
+{
+    private AlgorithmIdentifier algId;
+
+    public KeyDerivationFunc(
+        ASN1ObjectIdentifier objectId,
+        ASN1Encodable parameters)
+    {
+        this.algId = new AlgorithmIdentifier(objectId, parameters);
+    }
+
+    private KeyDerivationFunc(
+        ASN1Sequence seq)
+    {
+        this.algId = AlgorithmIdentifier.getInstance(seq);
+    }
+
+    public static final KeyDerivationFunc getInstance(Object obj)
+    {
+        if (obj instanceof KeyDerivationFunc)
+        {
+            return (KeyDerivationFunc)obj;
+        }
+        else if (obj != null)
+        {
+            return new KeyDerivationFunc(ASN1Sequence.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    public ASN1ObjectIdentifier getAlgorithm()
+    {
+        return algId.getAlgorithm();
+    }
+
+    public ASN1Encodable getParameters()
+    {
+        return algId.getParameters();
+    }
+
+    public ASN1Primitive toASN1Primitive()
+    {
+        return algId.toASN1Primitive();
+    }
+}