1 files changed, 104 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/asn1/crmf/POPOPrivKey.java b/core/src/main/java/org/spongycastle/asn1/crmf/POPOPrivKey.java
new file mode 100644
index 00000000..4b32bceb
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/asn1/crmf/POPOPrivKey.java
@@ -0,0 +1,104 @@
+package org.spongycastle.asn1.crmf;
+
+import org.spongycastle.asn1.ASN1Choice;
+import org.spongycastle.asn1.ASN1Encodable;
+import org.spongycastle.asn1.ASN1Integer;
+import org.spongycastle.asn1.ASN1Object;
+import org.spongycastle.asn1.ASN1Primitive;
+import org.spongycastle.asn1.ASN1TaggedObject;
+import org.spongycastle.asn1.DERBitString;
+import org.spongycastle.asn1.DERTaggedObject;
+import org.spongycastle.asn1.cms.EnvelopedData;
+
+public class POPOPrivKey
+    extends ASN1Object
+    implements ASN1Choice
+{
+    public static final int thisMessage = 0;
+    public static final int subsequentMessage = 1;
+    public static final int dhMAC = 2;
+    public static final int agreeMAC = 3;
+    public static final int encryptedKey = 4;
+
+    private int tagNo;
+    private ASN1Encodable obj;
+
+    private POPOPrivKey(ASN1TaggedObject obj)
+    {
+        this.tagNo = obj.getTagNo();
+
+        switch (tagNo)
+        {
+        case thisMessage:
+            this.obj = DERBitString.getInstance(obj, false);
+            break;
+        case subsequentMessage:
+            this.obj = SubsequentMessage.valueOf(ASN1Integer.getInstance(obj, false).getValue().intValue());
+            break;
+        case dhMAC:
+            this.obj = DERBitString.getInstance(obj, false);
+            break;
+        case agreeMAC:
+            this.obj = PKMACValue.getInstance(obj, false);
+            break;
+        case encryptedKey:
+            this.obj = EnvelopedData.getInstance(obj, false);
+            break;
+        default:
+            throw new IllegalArgumentException("unknown tag in POPOPrivKey");
+        }
+    }
+
+    public static POPOPrivKey getInstance(Object obj)
+    {
+        if (obj instanceof POPOPrivKey)
+        {
+            return (POPOPrivKey)obj;
+        }
+        if (obj != null)
+        {
+            return new POPOPrivKey(ASN1TaggedObject.getInstance(obj));
+        }
+
+        return null;
+    }
+
+    public static POPOPrivKey getInstance(ASN1TaggedObject obj, boolean explicit)
+    {
+        return getInstance(ASN1TaggedObject.getInstance(obj, explicit));
+    }
+
+    public POPOPrivKey(SubsequentMessage msg)
+    {
+        this.tagNo = subsequentMessage;
+        this.obj = msg;
+    }
+
+    public int getType()
+    {
+        return tagNo;
+    }
+
+    public ASN1Encodable getValue()
+    {
+        return obj;
+    }
+
+    /**
+     * <pre>
+     * POPOPrivKey ::= CHOICE {
+     *        thisMessage       [0] BIT STRING,         -- Deprecated
+     *         -- possession is proven in this message (which contains the private
+     *         -- key itself (encrypted for the CA))
+     *        subsequentMessage [1] SubsequentMessage,
+     *         -- possession will be proven in a subsequent message
+     *        dhMAC             [2] BIT STRING,         -- Deprecated
+     *        agreeMAC          [3] PKMACValue,
+     *        encryptedKey      [4] EnvelopedData }
+     * </pre>
+     */
+    public ASN1Primitive toASN1Primitive()
+    {
+        return new DERTaggedObject(false, tagNo, obj);
+    }
+}