1 files changed, 77 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/PBES2Parameters.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/PBES2Parameters.java
new file mode 100644
index 000000000..97c1a8dea
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/pkcs/PBES2Parameters.java
@@ -0,0 +1,77 @@
+package org.spongycastle.asn1.pkcs;
+
+import java.util.Enumeration;
+
+import org.spongycastle.asn1.ASN1Encodable;
+import org.spongycastle.asn1.ASN1EncodableVector;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1Sequence;
+import org.spongycastle.asn1.DERSequence;
+
+public class PBES2Parameters
+    extends ASN1Object
+    implements PKCSObjectIdentifiers
+{
+    private KeyDerivationFunc func;
+    private EncryptionScheme scheme;
+
+    public static PBES2Parameters getInstance(
+        Object  obj)
+    {
+        if (obj instanceof PBES2Parameters)
+        {
+            return (PBES2Parameters)obj;
+        }
+        if (obj != null)
+        {
+            return new PBES2Parameters(ASN1Sequence.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    public PBES2Parameters(KeyDerivationFunc keyDevFunc, EncryptionScheme encScheme)
+    {
+        this.func = keyDevFunc;
+        this.scheme = encScheme;
+    }
+
+    private PBES2Parameters(
+        ASN1Sequence  obj)
+    {
+        Enumeration e = obj.getObjects();
+        ASN1Sequence  funcSeq = ASN1Sequence.getInstance(((ASN1Encodable)e.nextElement()).toASN1Primitive());
+
+        if (funcSeq.getObjectAt(0).equals(id_PBKDF2))
+        {
+            func = new KeyDerivationFunc(id_PBKDF2, PBKDF2Params.getInstance(funcSeq.getObjectAt(1)));
+        }
+        else
+        {
+            func = KeyDerivationFunc.getInstance(funcSeq);
+        }
+
+        scheme = EncryptionScheme.getInstance(e.nextElement());
+    }
+
+    public KeyDerivationFunc getKeyDerivationFunc()
+    {
+        return func;
+    }
+
+    public EncryptionScheme getEncryptionScheme()
+    {
+        return scheme;
+    }
+
+    public ASN1Primitive toASN1Primitive()
+    {
+        ASN1EncodableVector  v = new ASN1EncodableVector();
+
+        v.add(func);
+        v.add(scheme);
+
+        return new DERSequence(v);
+    }
+}