Add optional additional entropy to finish
If provided the extra entropy will be added to the device before calling
finish. If entropy is provided and the device does not support supplying
additional entropy then finish will fail with KM_ERROR_UNIMPLEMENTED.
Change-Id: If26be118bf382604f6f8e96e833b76e6f9e94d58
diff --git a/core/java/android/security/IKeystoreService.aidl b/core/java/android/security/IKeystoreService.aidl
index 30ea8e7..4a0107d 100644
--- a/core/java/android/security/IKeystoreService.aidl
+++ b/core/java/android/security/IKeystoreService.aidl
@@ -67,7 +67,8 @@
OperationResult begin(IBinder appToken, String alias, int purpose, boolean pruneable,
in KeymasterArguments params, in byte[] entropy, out KeymasterArguments operationParams);
OperationResult update(IBinder token, in KeymasterArguments params, in byte[] input);
- OperationResult finish(IBinder token, in KeymasterArguments params, in byte[] signature);
+ OperationResult finish(IBinder token, in KeymasterArguments params, in byte[] signature,
+ in byte[] entropy);
int abort(IBinder handle);
boolean isOperationAuthorized(IBinder token);
int addAuthToken(in byte[] authToken);
diff --git a/keystore/java/android/security/KeyStore.java b/keystore/java/android/security/KeyStore.java
index 2558929..c85c3a8 100644
--- a/keystore/java/android/security/KeyStore.java
+++ b/keystore/java/android/security/KeyStore.java
@@ -474,15 +474,20 @@
}
}
- public OperationResult finish(IBinder token, KeymasterArguments arguments, byte[] signature) {
+ public OperationResult finish(IBinder token, KeymasterArguments arguments, byte[] signature,
+ byte[] entropy) {
try {
- return mBinder.finish(token, arguments, signature);
+ return mBinder.finish(token, arguments, signature, entropy);
} catch (RemoteException e) {
Log.w(TAG, "Cannot connect to keystore", e);
return null;
}
}
+ public OperationResult finish(IBinder token, KeymasterArguments arguments, byte[] signature) {
+ return finish(token, arguments, signature, null);
+ }
+
public int abort(IBinder token) {
try {
return mBinder.abort(token);
