diff --git a/OpenPGP-Keychain-API-Demo/src/org/openintents/crypto/CryptoServiceConnection.java b/OpenPGP-Keychain-API-Demo/src/org/openintents/crypto/CryptoServiceConnection.java
index 5df32dcf9..d9e91f772 100644
--- a/OpenPGP-Keychain-API-Demo/src/org/openintents/crypto/CryptoServiceConnection.java
+++ b/OpenPGP-Keychain-API-Demo/src/org/openintents/crypto/CryptoServiceConnection.java
@@ -69,7 +69,7 @@ public class CryptoServiceConnection {
 
                 Intent serviceIntent = new Intent();
                 serviceIntent.setAction("org.openintents.crypto.ICryptoService");
-                serviceIntent.setPackage(cryptoProviderPackageName); // TODO: test
+                serviceIntent.setPackage(cryptoProviderPackageName);
                 mApplicationContext.bindService(serviceIntent, mCryptoServiceConnection,
                         Context.BIND_AUTO_CREATE);
 
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/crypto_provider/CryptoService.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/crypto_provider/CryptoService.java
index 3748ef521..a70641b58 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/crypto_provider/CryptoService.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/crypto_provider/CryptoService.java
@@ -58,8 +58,6 @@ public class CryptoService extends Service {
 
     private ArrayList<String> mAllowedPackages;
 
-    // RemoteCallbackList<IInterface>
-
     public static final String ACTION_SERVICE_ACTIVITY = "org.sufficientlysecure.keychain.crypto_provider.IServiceActivityCallback";
 
     @Override
@@ -218,12 +216,13 @@ public class CryptoService extends Service {
 
         @Override
         public void register(boolean success, String packageName) throws RemoteException {
+
             if (success) {
                 // reload allowed packages
                 mAllowedPackages = ProviderHelper.getCryptoConsumers(mContext);
 
                 // resume threads
-                if (isCallerAllowed()) {
+                if (isPackageAllowed(packageName)) {
                     mThreadPool.resume();
                 } else {
                     // TODO: should not happen?
@@ -248,8 +247,15 @@ public class CryptoService extends Service {
 
             Log.d(Constants.TAG, "Enqueued runnable…");
         } else {
-            Log.e(Constants.TAG, "Not allowed to use service! Starting register with activity!");
-            pauseQueueAndStartServiceActivity(ServiceActivity.ACTION_REGISTER, null);
+            String[] callingPackages = getPackageManager()
+                    .getPackagesForUid(Binder.getCallingUid());
+
+            Log.e(Constants.TAG, "Not allowed to use service! Starting activity for registration!");
+            Bundle extras = new Bundle();
+            // TODO: currently simply uses first entry
+            extras.putString(ServiceActivity.EXTRA_PACKAGE_NAME, callingPackages[0]);
+            pauseQueueAndStartServiceActivity(ServiceActivity.ACTION_REGISTER, extras);
+
             mThreadPool.execute(r);
 
             Log.d(Constants.TAG, "Enqueued runnable…");
@@ -268,24 +274,33 @@ public class CryptoService extends Service {
         // is calling package allowed to use this service?
         for (int i = 0; i < callingPackages.length; i++) {
             String currentPkg = callingPackages[i];
-            Log.d(Constants.TAG, "Caller packageName: " + currentPkg);
-
-            // check if package is allowed to use our service
-            if (mAllowedPackages.contains(currentPkg)) {
-                Log.d(Constants.TAG, "Caller is allowed! packageName: " + currentPkg);
-
-                return true;
-            } else if (Constants.PACKAGE_NAME.equals(currentPkg)) {
-                Log.d(Constants.TAG, "Caller is OpenPGP Keychain! -> allowed!");
 
+            if (isPackageAllowed(currentPkg)) {
                 return true;
             }
         }
-        
+
         Log.d(Constants.TAG, "Caller is NOT allowed!");
         return false;
     }
 
+    private boolean isPackageAllowed(String packageName) {
+        Log.d(Constants.TAG, "packageName: " + packageName);
+
+        // check if package is allowed to use our service
+        if (mAllowedPackages.contains(packageName)) {
+            Log.d(Constants.TAG, "Package is allowed! packageName: " + packageName);
+
+            return true;
+        } else if (Constants.PACKAGE_NAME.equals(packageName)) {
+            Log.d(Constants.TAG, "Package is OpenPGP Keychain! -> allowed!");
+
+            return true;
+        }
+
+        return false;
+    }
+
     private void pauseQueueAndStartServiceActivity(String action, Bundle extras) {
         mThreadPool.pause();
 
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/crypto_provider/ServiceActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/crypto_provider/ServiceActivity.java
index 9f68aab97..7efce85c7 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/crypto_provider/ServiceActivity.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/crypto_provider/ServiceActivity.java
@@ -19,6 +19,7 @@ package org.sufficientlysecure.keychain.crypto_provider;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.helper.PgpMain;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
 import org.sufficientlysecure.keychain.util.Log;
 
@@ -136,7 +137,7 @@ public class ServiceActivity extends SherlockFragmentActivity {
 
                 @Override
                 public void onClick(View v) {
-                    // ProviderHelper.addCryptoConsumer(RegisterActivity.this, callingPackageName);
+                    ProviderHelper.addCryptoConsumer(ServiceActivity.this, packageName);
                     // Intent data = new Intent();
 
                     setResult(RESULT_OK);
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/provider/KeychainContract.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/provider/KeychainContract.java
index 46928c6fa..776d1bfb9 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/provider/KeychainContract.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/provider/KeychainContract.java
@@ -222,6 +222,10 @@ public class KeychainContract {
 
         /** Use if a single item is returned */
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.thialfihar.apg.crypto_consumers";
+
+        public static Uri buildIdUri(String rowId) {
+            return CONTENT_URI.buildUpon().appendPath(rowId).build();
+        }
     }
 
     public static class DataStream {
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/provider/KeychainProvider.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/provider/KeychainProvider.java
index 49286b9ce..70be38e21 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/provider/KeychainProvider.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/provider/KeychainProvider.java
@@ -600,10 +600,10 @@ public class KeychainProvider extends ContentProvider {
             qb.appendWhereEscapeString(uri.getLastPathSegment());
 
             break;
-            
+
         case CRYPTO_CONSUMERS:
             qb.setTables(Tables.CRYPTO_CONSUMERS);
-            
+
             break;
 
         default:
@@ -685,6 +685,11 @@ public class KeychainProvider extends ContentProvider {
                 rowId = db.insertOrThrow(Tables.USER_IDS, null, values);
                 rowUri = UserIds.buildSecretUserIdsUri(Long.toString(rowId));
 
+                break;
+            case CRYPTO_CONSUMERS:
+                rowId = db.insertOrThrow(Tables.CRYPTO_CONSUMERS, null, values);
+                rowUri = CryptoConsumers.buildIdUri(Long.toString(rowId));
+
                 break;
             default:
                 throw new UnsupportedOperationException("Unknown uri: " + uri);