1 files changed, 63 insertions, 0 deletions
diff --git a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/KEKRecipientId.java b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/KEKRecipientId.java
new file mode 100644
index 000000000..2025c7c16
--- /dev/null
+++ b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/KEKRecipientId.java
@@ -0,0 +1,63 @@
+package org.spongycastle.cms;
+
+import org.spongycastle.util.Arrays;
+
+public class KEKRecipientId
+    extends RecipientId
+{
+    private byte[] keyIdentifier;
+
+    /**
+     * Construct a recipient ID with the key identifier of a KEK recipient.
+     *
+     * @param keyIdentifier a subjectKeyId
+     */
+    public KEKRecipientId(byte[] keyIdentifier)
+    {
+        super(kek);
+
+        this.keyIdentifier = keyIdentifier;
+    }
+
+    public int hashCode()
+    {
+        return Arrays.hashCode(keyIdentifier);
+    }
+
+    public boolean equals(
+        Object o)
+    {
+        if (!(o instanceof KEKRecipientId))
+        {
+            return false;
+        }
+
+        KEKRecipientId id = (KEKRecipientId)o;
+
+        return Arrays.areEqual(keyIdentifier, id.keyIdentifier);
+    }
+
+    public byte[] getKeyIdentifier()
+    {
+        return Arrays.clone(keyIdentifier);
+    }
+
+    public Object clone()
+    {
+        return new KEKRecipientId(keyIdentifier);
+    }
+
+    public boolean match(Object obj)
+    {
+        if (obj instanceof byte[])
+        {
+            return Arrays.areEqual(keyIdentifier, (byte[])obj);
+        }
+        else if (obj instanceof KEKRecipientInformation)
+        {
+            return ((KEKRecipientInformation)obj).getRID().equals(this);
+        }
+
+        return false;
+    }
+}