1 files changed, 38 insertions, 0 deletions
diff --git a/pkix/src/main/java/org/spongycastle/cms/KEKRecipientInformation.java b/pkix/src/main/java/org/spongycastle/cms/KEKRecipientInformation.java
new file mode 100644
index 00000000..3388d6fa
--- /dev/null
+++ b/pkix/src/main/java/org/spongycastle/cms/KEKRecipientInformation.java
@@ -0,0 +1,38 @@
+package org.spongycastle.cms;
+
+import java.io.IOException;
+
+import org.spongycastle.asn1.cms.KEKIdentifier;
+import org.spongycastle.asn1.cms.KEKRecipientInfo;
+import org.spongycastle.asn1.x509.AlgorithmIdentifier;
+
+/**
+ * the RecipientInfo class for a recipient who has been sent a message
+ * encrypted using a secret key known to the other side.
+ */
+public class KEKRecipientInformation
+    extends RecipientInformation
+{
+    private KEKRecipientInfo      info;
+
+    KEKRecipientInformation(
+        KEKRecipientInfo        info,
+        AlgorithmIdentifier     messageAlgorithm,
+        CMSSecureReadable       secureReadable,
+        AuthAttributesProvider  additionalData)
+    {
+        super(info.getKeyEncryptionAlgorithm(), messageAlgorithm, secureReadable, additionalData);
+
+        this.info = info;
+
+        KEKIdentifier kekId = info.getKekid();
+
+        this.rid = new KEKRecipientId(kekId.getKeyIdentifier().getOctets());
+    }
+
+    protected RecipientOperator getRecipientOperator(Recipient recipient)
+        throws CMSException, IOException
+    {
+        return ((KEKRecipient)recipient).getRecipientOperator(keyEncAlg, messageAlgorithm, info.getEncryptedKey().getOctets());
+    }
+}