1 files changed, 17 insertions, 1 deletions
diff --git a/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java b/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java
index 7775dbf..e0c38b1 100644
--- a/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java
+++ b/nfc-extras/java/com/android/nfc_extras/NfcAdapterExtras.java
@@ -18,7 +18,6 @@ package com.android.nfc_extras;
 
 import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
-import android.nfc.ApduList;
 import android.nfc.INfcAdapterExtras;
 import android.nfc.NfcAdapter;
 import android.os.RemoteException;
@@ -207,4 +206,21 @@ public final class NfcAdapterExtras {
     public NfcExecutionEnvironment getEmbeddedExecutionEnvironment() {
         return sEmbeddedEe;
     }
+
+    /**
+     * Authenticate the client application.
+     *
+     * Some implementations of NFC Adapter Extras may require applications
+     * to authenticate with a token, before using other methods.
+     *
+     * @param a implementation specific token
+     * @throws a {@link java.lang.SecurityException} if authentication failed
+     */
+    public void authenticate(byte[] token) {
+        try {
+            sService.authenticate(token);
+        } catch (RemoteException e) {
+            attemptDeadServiceRecovery(e);
+        }
+    }
 }