add signPinless()

android/build.gradle

@@ -40,5 +40,5 @@ repositories {
 dependencies {
     implementation 'com.facebook.react:react-native:+'
     implementation 'org.bouncycastle:bcprov-jdk15on:1.60'
-    implementation 'com.github.status-im.status-keycard-java:android:2.1.0'
+    implementation 'com.github.status-im.status-keycard-java:android:2.2.1'
 }

android/src/main/java/im/status/ethereum/keycard/RNStatusKeycardModule.java

@@ -220,6 +220,20 @@ public class RNStatusKeycardModule extends ReactContextBaseJavaModule implements
         }).start();
     }
 
+    @ReactMethod
+    public void signPinless(final String hash, final Promise promise) {
+        new Thread(new Runnable() {
+            public void run() {
+                try {
+                    promise.resolve(smartCard.signPinless(hash));
+                } catch (IOException | APDUException e) {
+                    Log.d(TAG, e.getMessage());
+                    promise.reject(e);
+                }
+            }
+        }).start();
+    }
+
     @ReactMethod
     public void installApplet(final Promise promise) {
         final ReactContext ctx = this.reactContext;

android/src/main/java/im/status/ethereum/keycard/SmartCard.java

@@ -507,4 +507,28 @@ public class SmartCard extends BroadcastReceiver implements CardListener {
         return sig;
     }
 
+    public String signPinless(final String message) throws IOException, APDUException {
+        KeycardCommandSet cmdSet = new KeycardCommandSet(this.cardChannel);
+        cmdSet.select().checkOK();
+
+        byte[] hash = Hex.decode(message);
+        RecoverableSignature signature = new RecoverableSignature(hash, cmdSet.signPinless(hash).checkOK().getData());
+
+        Log.i(TAG, "Signed hash: " + Hex.toHexString(hash));
+        Log.i(TAG, "Recovery ID: " + signature.getRecId());
+        Log.i(TAG, "R: " + Hex.toHexString(signature.getR()));
+        Log.i(TAG, "S: " + Hex.toHexString(signature.getS()));
+
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+
+        out.write(signature.getR());
+        out.write(signature.getS());
+        out.write(signature.getRecId());
+
+        String sig = Hex.toHexString(out.toByteArray());
+        Log.i(TAG, "Signature: " + sig);
+
+        return sig;
+    }
+
 }