chain code in pubkeys

android/src/main/java/im/status/keycard/android/NFCCardChannel.java

@@ -24,23 +24,14 @@ public class NFCCardChannel implements CardChannel {
   public APDUResponse send(APDUCommand cmd) throws IOException {
     byte[] apdu = cmd.serialize();
     Log.d(TAG, String.format("COMMAND CLA: %02X INS: %02X P1: %02X P2: %02X LC: %02X", cmd.getCla(), cmd.getIns(), cmd.getP1(), cmd.getP2(), cmd.getData().length));
-    
-    try {
-      byte[] resp = this.isoDep.transceive(apdu);
-      APDUResponse response = new APDUResponse(resp);
-      Log.d(TAG, String.format("RESPONSE LEN: %02X, SW: %04X %n-----------------------", response.getData().length, response.getSw()));
-      return response;
-    } catch(SecurityException e) {
-      throw new IOException("Tag disconnected", e);
-    }
+    byte[] resp = this.isoDep.transceive(apdu);
+    APDUResponse response = new APDUResponse(resp);
+    Log.d(TAG, String.format("RESPONSE LEN: %02X, SW: %04X %n-----------------------", response.getData().length, response.getSw()));
+    return response;
   }
 
   @Override
   public boolean isConnected() {
-    try {
-      return this.isoDep.isConnected();
-    } catch(SecurityException e) {
-      return false;
-    }
+    return this.isoDep.isConnected();
   }
 }

android/src/main/java/im/status/keycard/android/NFCCardManager.java

@@ -48,11 +48,7 @@ public class NFCCardManager extends Thread implements NfcAdapter.ReaderCallback
    * @return if connected, false otherwise
    */
   public boolean isConnected() {
-    try {
-      return isoDep != null && isoDep.isConnected();
-    } catch (SecurityException e) {
-      return false;
-    }
+    return isoDep != null && isoDep.isConnected();
   }
 
   @Override
@@ -62,7 +58,7 @@ public class NFCCardManager extends Thread implements NfcAdapter.ReaderCallback
       isoDep = IsoDep.get(tag);
       isoDep.connect();
       isoDep.setTimeout(120000);
-    } catch (IOException | SecurityException e) {
+    } catch (IOException e) {
       Log.e(TAG, "error connecting to tag");
     }
   }

lib/src/main/java/im/status/keycard/applet/KeycardCommandSet.java

@@ -554,7 +554,7 @@ public class KeycardCommandSet {
    * @throws IOException communication error
    */
   public APDUResponse sign(byte[] data, int p1) throws IOException {
-    APDUCommand sign = secureChannel.protectedCommand(0x80, INS_SIGN, p1, 0x01, data);
+    APDUCommand sign = secureChannel.protectedCommand(0x80, INS_SIGN, p1, 0x00, data);
     return secureChannel.transmit(apduChannel, sign);
   }
 

lib/src/main/java/im/status/keycard/applet/RecoverableSignature.java

@@ -23,7 +23,6 @@ public class RecoverableSignature {
   private boolean compressed;
 
   public static final byte TLV_SIGNATURE_TEMPLATE = (byte) 0xA0;
-  public static final byte TLV_RAW_SIGNATURE = (byte) 0x80;
   public static final byte TLV_ECDSA_TEMPLATE = (byte) 0x30;
 
   private static final X9ECParameters CURVE_PARAMS = CustomNamedCurves.getByName("secp256k1");
@@ -42,19 +41,6 @@ public class RecoverableSignature {
    */
   public RecoverableSignature(byte[] hash, byte[] tlvData) {
     TinyBERTLV tlv = new TinyBERTLV(tlvData);
-    int tag = tlv.readTag();
-    tlv.unreadLastTag();
-
-    if (tag == TLV_RAW_SIGNATURE) {
-      initFromRawSignature(hash, tlv.readPrimitive(tag));
-    } else if (tag == TLV_SIGNATURE_TEMPLATE) {
-      initFromLegacy(hash, tlv);
-    } else {
-      throw new IllegalArgumentException("invalid tlv");
-    }
-  }
-
-  private void initFromLegacy(byte[] hash, TinyBERTLV tlv) {
     tlv.enterConstructed(TLV_SIGNATURE_TEMPLATE);
     this.publicKey = tlv.readPrimitive(ApplicationInfo.TLV_PUB_KEY);
     tlv.enterConstructed(TLV_ECDSA_TEMPLATE);
@@ -65,14 +51,6 @@ public class RecoverableSignature {
     calculateRecID(hash);
   }
 
-  private void initFromRawSignature(byte[] hash, byte[] signature) {
-    this.r = Arrays.copyOfRange(signature, 0, 32);
-    this.s = Arrays.copyOfRange(signature, 32, 64);
-    this.recId = signature[64];
-    this.compressed = false;
-    this.publicKey = recoverFromSignature(this.recId, hash, this.r, this.s, this.compressed);
-  }
-
   public RecoverableSignature(byte[] publicKey, boolean compressed, byte[] r, byte[] s, int recId) {
     this.publicKey = publicKey;
     this.r = r;