1 files changed, 53 insertions, 0 deletions
diff --git a/ready_se/google/keymint/KM200/Applet/AndroidSEProviderLib/src/com/android/javacard/seprovider/KMHmacKey.java b/ready_se/google/keymint/KM200/Applet/AndroidSEProviderLib/src/com/android/javacard/seprovider/KMHmacKey.java
new file mode 100644
index 0000000..e938a2b
--- /dev/null
+++ b/ready_se/google/keymint/KM200/Applet/AndroidSEProviderLib/src/com/android/javacard/seprovider/KMHmacKey.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright(C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" (short)0IS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.javacard.seprovider;
+
+import javacard.security.HMACKey;
+import org.globalplatform.upgrade.Element;
+
+/** This is a wrapper class for HMACKey. */
+public class KMHmacKey implements KMKey {
+
+  public HMACKey hmacKey;
+
+  public KMHmacKey(HMACKey key) {
+    hmacKey = key;
+  }
+
+  public static void onSave(Element element, KMHmacKey kmKey) {
+    element.write(kmKey.hmacKey);
+  }
+
+  public static KMHmacKey onRestore(HMACKey hmacKey) {
+    if (hmacKey == null) {
+      return null;
+    }
+    return new KMHmacKey(hmacKey);
+  }
+
+  public static short getBackupPrimitiveByteCount() {
+    return (short) 0;
+  }
+
+  public static short getBackupObjectCount() {
+    return (short) 1;
+  }
+
+  @Override
+  public short getPublicKey(byte[] buf, short offset) {
+    return (short) 0;
+  }
+}