status-im/react-native-status-keycard
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add generateAndLoadKey to simplify setup process

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Dmitry Novotochinov 2018-11-27 12:13:04 +03:00
parent 17312ef467
commit 407900db9d
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3 changed files with 47 additions and 4 deletions
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2
android/build.gradle
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@ -39,5 +39,5 @@ repositories {
dependencies {
implementation 'com.facebook.react:react-native:+'
implementation 'com.github.status-im:hardwallet-lite-android:3cad212'
implementation 'com.github.status-im:hardwallet-lite-android:145fe4b'
}

10
android/src/main/java/im/status/ethereum/keycard/RNStatusKeycardModule.java
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@ -118,6 +118,16 @@ public class RNStatusKeycardModule extends ReactContextBaseJavaModule implements
}
}
@ReactMethod
public void generateAndLoadKey(final String mnemonic, final String pairing, final String pin, final Promise promise) {
try {
promise.resolve(smartCard.generateAndLoadKey(mnemonic, pairing, pin));
} catch (IOException | APDUException e) {
Log.d(TAG, e.getMessage());
promise.reject(e);
}
}
@ReactMethod
public void saveMnemonic(final String mnemonic, final String pairing, final String pin, final Promise promise) {
try {

39
android/src/main/java/im/status/ethereum/keycard/SmartCard.java
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@ -21,12 +21,11 @@ import im.status.hardwallet_lite_android.io.APDUException;
import im.status.hardwallet_lite_android.io.CardChannel;
import im.status.hardwallet_lite_android.io.CardListener;
import im.status.hardwallet_lite_android.io.CardManager;
import im.status.hardwallet_lite_android.wallet.BIP32KeyPair;
import im.status.hardwallet_lite_android.wallet.Mnemonic;
import im.status.hardwallet_lite_android.wallet.WalletAppletCommandSet;
import im.status.hardwallet_lite_android.wallet.Pairing;
import im.status.hardwallet_lite_android.wallet.RecoverableSignature;
import im.status.hardwallet_lite_android.wallet.ApplicationInfo;
import im.status.hardwallet_lite_android.wallet.ApplicationStatus;
import im.status.hardwallet_lite_android.wallet.KeyPath;
import org.spongycastle.util.encoders.Hex;
@ -241,7 +240,7 @@ public class SmartCard extends BroadcastReceiver implements CardListener {
}
}
public String exportKey(final String pairingBase64,final String pin) throws IOException, APDUException {
public String exportKey(final String pairingBase64, final String pin) throws IOException, APDUException {
WalletAppletCommandSet cmdSet = new WalletAppletCommandSet(this.cardChannel);
cmdSet.select().checkOK();
@ -258,4 +257,38 @@ public class SmartCard extends BroadcastReceiver implements CardListener {
return Hex.toHexString(key);
}
public WritableMap generateAndLoadKey(final String mnemonic, final String pairingBase64, final String pin) throws IOException, APDUException {
WalletAppletCommandSet cmdSet = new WalletAppletCommandSet(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");
byte[] seed = Mnemonic.toBinarySeed(mnemonic, "");
BIP32KeyPair keyPair = BIP32KeyPair.fromBinarySeed(seed);
cmdSet.loadKey(keyPair);
log("keypair loaded to card");
KeyPath currentPath = new KeyPath(cmdSet.getStatus(WalletAppletCommandSet.GET_STATUS_P1_KEY_PATH).checkOK().getData());
Log.i(TAG, "Current key path: " + currentPath);
if (!currentPath.toString().equals("m/44'/0'/0'/0/0")) {
cmdSet.deriveKey("m/44'/0'/0'/0/0").checkOK();
Log.i(TAG, "Derived m/44'/0'/0'/0/0");
}
WritableMap data = Arguments.createMap();
data.putString("public-key", Hex.toHexString(keyPair.getPublicKey()));
data.putString("address", Hex.toHexString(keyPair.toEthereumAddress()));
return data;
}
}