From d2db19f49f73ba1fbada94aee879297866aac01f Mon Sep 17 00:00:00 2001
From: Dmitry Novotochinov <dmitry.novot@gmail.com>
Date: Wed, 26 Dec 2018 15:30:39 +0300
Subject: [PATCH] add verifyPin and changePin methods

---
 .../keycard/RNStatusKeycardModule.java        | 22 ++++++++++++++++++
 .../im/status/ethereum/keycard/SmartCard.java | 23 +++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/android/src/main/java/im/status/ethereum/keycard/RNStatusKeycardModule.java b/android/src/main/java/im/status/ethereum/keycard/RNStatusKeycardModule.java
index f0ab302..8eca5e0 100644
--- a/android/src/main/java/im/status/ethereum/keycard/RNStatusKeycardModule.java
+++ b/android/src/main/java/im/status/ethereum/keycard/RNStatusKeycardModule.java
@@ -256,4 +256,26 @@ public class RNStatusKeycardModule extends ReactContextBaseJavaModule implements
         }).start();
     }
 
+    @ReactMethod
+    public void verifyPin(final String pairing, final String pin, final Promise promise) {
+        try {
+            smartCard.verifyPin(pairing, pin);
+            promise.resolve(true);
+        } catch (IOException | APDUException e) {
+            Log.d(TAG, e.getMessage());
+            promise.reject(e);
+        }
+    }
+
+    @ReactMethod
+    public void changePin(final String pairing, final String currentPin, final String newPin, final Promise promise) {
+        try {
+            smartCard.changePin(pairing, currentPin, newPin);
+            promise.resolve(true);
+        } catch (IOException | APDUException e) {
+            Log.d(TAG, e.getMessage());
+            promise.reject(e);
+        }
+    }
+
 }
\ No newline at end of file
diff --git a/android/src/main/java/im/status/ethereum/keycard/SmartCard.java b/android/src/main/java/im/status/ethereum/keycard/SmartCard.java
index a9a1c7a..1da715c 100644
--- a/android/src/main/java/im/status/ethereum/keycard/SmartCard.java
+++ b/android/src/main/java/im/status/ethereum/keycard/SmartCard.java
@@ -367,4 +367,27 @@ public class SmartCard extends BroadcastReceiver implements CardListener {
         return init();
     }
 
+    public KeycardCommandSet verifyPin(final String pairingBase64, final String pin) throws IOException, APDUException {
+        KeycardCommandSet cmdSet = new KeycardCommandSet(this.cardChannel);
+        cmdSet.select().checkOK();
+
+        Pairing pairing = new Pairing(pairingBase64);
+        cmdSet.setPairing(pairing);
+
+        cmdSet.autoOpenSecureChannel();
+        Log.i(TAG, "secure channel opened");
+
+        cmdSet.verifyPIN(pin).checkOK();
+        Log.i(TAG, "pin verified");
+
+        return cmdSet;
+    }
+
+    public void changePin(final String pairingBase64, final String currentPin, final String newPin) throws IOException, APDUException {
+        KeycardCommandSet cmdSet = verifyPin(pairingBase64, currentPin);
+
+        cmdSet.changePIN(0, newPin);
+        Log.i(TAG, "pin changed");
+    }
+
 }