1 files changed, 39 insertions, 0 deletions
diff --git a/keystore/java/android/security/KeyStoreSecretKey.java b/keystore/java/android/security/KeyStoreSecretKey.java
new file mode 100644
index 0000000..9410127
--- /dev/null
+++ b/keystore/java/android/security/KeyStoreSecretKey.java
@@ -0,0 +1,39 @@
+package android.security;
+
+import javax.crypto.SecretKey;
+
+/**
+ * {@link SecretKey} backed by keystore.
+ *
+ * @hide
+ */
+public class KeyStoreSecretKey implements SecretKey {
+    private final String mAlias;
+    private final String mAlgorithm;
+
+    public KeyStoreSecretKey(String alias, String algorithm) {
+        mAlias = alias;
+        mAlgorithm = algorithm;
+    }
+
+    String getAlias() {
+        return mAlias;
+    }
+
+    @Override
+    public String getAlgorithm() {
+        return mAlgorithm;
+    }
+
+    @Override
+    public String getFormat() {
+        // This key does not export its key material
+        return null;
+    }
+
+    @Override
+    public byte[] getEncoded() {
+        // This key does not export its key material
+        return null;
+    }
+}