Example usage for javax.smartcardio ResponseAPDU getData

List of usage examples for javax.smartcardio ResponseAPDU getData

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Introduction

In this page you can find the example usage for javax.smartcardio ResponseAPDU getData.

Prototype

public byte[] getData()

Source Link

Document

Returns a copy of the data bytes in the response body.

Usage

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

/**
 * Returns the number of uris read, no of uris remaining to be read.
 *//*ww w . j  a v  a2  s .  c om*/
private byte[] getBlobUrisHelper(int pin, Set<URI> uris, byte nread) {
    ByteBuffer buf = ByteBuffer.allocate(14);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.listBlobs, 0, 0, 0, 0, 5 });
    buf.put(this.pinToByteArr(pin));
    buf.put(new byte[] { nread, 0, 0 }); //first arg is how many URIs we read so far.
    buf.position(0);
    try {
        if (printInput)
            System.out.println("Input for listBlobs: " + Arrays.toString(buf.array()));
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from listBlobs: " + response);
        if (this.evaluateStatus(response) != SmartcardStatusCode.OK) {
            return null;
        }
        byte[] data = response.getData();
        System.out.println("data: " + Arrays.toString(data));
        int index = 0;
        while (true) {
            if ((index + 2) == data.length) {
                //at the end, so the last two bytes is the updated number of read URIs and the number of unread URIs
                //               System.out.println("data.length: " + data.length);
                //               System.out.println("index: " + index);
                nread = data[index];
                byte unread = data[index + 1];
                System.out.println("nread: " + nread);
                System.out.println("unread: " + unread);
                return new byte[] { nread, unread };
            } else {
                byte uriSize = data[index];
                byte[] uri = new byte[uriSize];
                System.arraycopy(data, index + 1, uri, 0, uriSize);
                uris.add(this.byteArrToUri(uri));
                index += uriSize + 1;
            }
        }
    } catch (CardException e) {
        e.printStackTrace();
        return null;
    }
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

@Override
public int init(int newPin, SystemParameters pseuParams, RSAKeyPair rootKey, short deviceId) {
    if (this.wasInit()) {
        return -1;
    }//  w ww . j  a  v  a  2  s  .  c o  m
    try {

        byte[] deviceID = ByteBuffer.allocate(2).putShort(deviceId).array();
        this.setAuthenticationKey(rootKey.getN(), 0, null);
        byte[] deviceKeySize = this.intLengthToShortByteArr(pseuParams.deviceSecretSizeBytes);
        byte[] idAndDeviceKeySize = new byte[] { deviceID[0], deviceID[1], deviceKeySize[0], deviceKeySize[1] };
        ByteBuffer buf = ByteBuffer.allocate(13);
        buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.initializeDevice, 0, 0, 0, 0, 4 });
        buf.put(idAndDeviceKeySize);
        buf.put(new byte[] { 0, 0 });
        buf.position(0);
        if (printInput)
            System.out.println("Input to initialize device: " + Arrays.toString(buf.array()));
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        if (this.evaluateStatus(response) != SmartcardStatusCode.OK) {
            return -1;
        }
        byte[] pinAndPuk = SmartcardCrypto.decrypt(response.getData(), rootKey);
        byte[] pin = new byte[4];
        byte[] puk = new byte[8];
        System.arraycopy(pinAndPuk, 0, pin, 0, 4);
        System.arraycopy(pinAndPuk, 4, puk, 0, 8);
        String ipin = "", ipuk = "";
        for (int i = 0; i < 4; i++) {
            ipin += (char) (pin[i] & 0xFF);
        }
        for (int i = 0; i < 8; i++) {
            ipuk += (char) (puk[i] & 0xFF);
        }
        if (this.changePin(Integer.parseInt(ipin), newPin) != SmartcardStatusCode.OK) {
            System.out.println("Could not change pin.");
            return -1;
        }

        System.out.println("Now initializing group stuff");
        int mode = this.getMode();

        if (this.setGroupComponent(mode, pseuParams.p.toByteArray(), 0, 0, null) != SmartcardStatusCode.OK) {
            return -1;
        }
        if (this.setGroupComponent(mode, pseuParams.subgroupOrder.toByteArray(), 0, 1,
                null) != SmartcardStatusCode.OK) {
            return -1;
        }
        BigInteger f = pseuParams.p.subtract(BigInteger.ONE).divide(pseuParams.subgroupOrder); //cofactor
        this.setGroupComponent(mode, f.toByteArray(), 0, 2, null);

        //then add a generator of the subgroup q
        if (this.setGenerator(mode, pseuParams.g.toByteArray(), 0, 1, null) != SmartcardStatusCode.OK) {
            return -1;
        }

        //set prover
        byte[] data = new byte[5 + MAX_CREDENTIALS + 1];
        data[0] = 1; //id 1
        int ksize = pseuParams.zkChallengeSizeBytes * 2 + pseuParams.zkStatisticalHidingSizeBytes;
        byte[] ksize_bytes = this.intLengthToShortByteArr(ksize);
        data[1] = ksize_bytes[0];
        data[2] = ksize_bytes[1]; // as large as the subgroup order is -1 to prevent overflow.
        int csize = pseuParams.zkChallengeSizeBytes;
        byte[] csize_bytes = this.intLengthToShortByteArr(csize);
        data[3] = csize_bytes[0];
        data[4] = csize_bytes[1]; // challenge size: 256 bit = 32 bytes (as per default in SystemParameters)
        for (int i = 0; i <= MAX_CREDENTIALS; i++) {
            //0 means it accepts both credentials and scope-exclusive stuff.
            //1,2,3,... means it accepts credentials with id 1,2,3,...
            data[i + 5] = (byte) i;
        }
        buf = ByteBuffer.allocate(5 + data.length);
        buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.setProver, 0, 0, (byte) data.length });
        buf.put(data);
        buf.position(0);
        System.out.println("Input to prover: " + Arrays.toString(buf.array()));
        response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from setProver: " + response);
        if (this.evaluateStatus(response) != SmartcardStatusCode.OK) {
            return -1;
        }

        //After init, one should call setIssuer which creates a group and counter.
        return Integer.parseInt(ipuk);
    } catch (CardException e) {
        e.printStackTrace();
        return -1;
    }
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

@SuppressWarnings("unused")
private List<Byte> listCounters(int pin) {
    ByteBuffer buf = ByteBuffer.allocate(10);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.listCounters, 0, 0, 4 });
    buf.put(this.pinToByteArr(pin));
    buf.put(new byte[] { 0 });
    buf.position(0);/*from   w ww.jav a  2  s  .  c  o  m*/
    try {
        if (printInput)
            System.out.println("Input for listCounters: " + Arrays.toString(buf.array()));
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from listCounters: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            List<Byte> counters = new ArrayList<Byte>();
            byte[] counterIDs = response.getData();
            for (byte counterID : counterIDs) {
                counters.add(counterID);
            }
            return counters;
        }
    } catch (CardException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

@Override
public SmartcardBlob getBlob(int pin, URI uri) {
    //this.resetCard();

    uri = URI.create(uri.toString().replaceAll(":", "_"));
    byte[] uriBytes = this.uriToByteArr(uri);
    if (uriBytes.length > 199) {
        throw new RuntimeException("URI is too long. Cannot have been stored on smartcard.");
    }/*from w  w w.jav  a 2s.c om*/

    // BLOB CACHE!
    if (blobCache.containsKey(uri)) {
        SmartcardBlob cached = blobCache.get(uri);
        System.out.println("Cached readBlob: " + uri + " : " + cached.blob.length); // Arrays.toString(cached.blob));
        return cached;
    }
    ByteBuffer buf = ByteBuffer.allocate(9 + 4 + uriBytes.length);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.readBlob, 0, 0, 0 });
    buf.put(this.intLengthToShortByteArr(uriBytes.length + 4));
    buf.put(this.pinToByteArr(pin));
    buf.put(uriBytes);
    buf.put(new byte[] { 0, 0 });
    buf.position(0);
    try {
        if (printInput)
            System.out.println("Input for readBlob: " + Arrays.toString(buf.array()));
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from readBlob: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            SmartcardBlob blob = new SmartcardBlob();
            blob.blob = response.getData();

            // BLOB CACHE!
            blobCache.put(uri, blob);
            return blob;
        } else {
            return null;
        }
    } catch (CardException e) {
        e.printStackTrace();
        return null;
    }
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

public List<Byte> listCredentialIDs(int pin) {
    ByteBuffer buf = ByteBuffer.allocate(10);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.listCredentials, 0, 0, 4 });
    buf.put(this.pinToByteArr(pin));
    buf.put((byte) 0);
    buf.position(0);// www.  ja v  a2  s  .co m
    try {
        if (printInput)
            System.out.println("Input for listCredentials: " + Arrays.toString(buf.array()));
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from listCredentials: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            List<Byte> credentialIDs = new ArrayList<Byte>();
            byte[] creds = response.getData();
            for (byte cred : creds) {
                credentialIDs.add(cred);
            }
            return credentialIDs;
        }
    } catch (CardException e) {
        e.printStackTrace();
        return null;
    }
    return null;
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

@Override
public short getDeviceID(int pin) {
    try {/* w ww.jav  a  2s  .co m*/
        ResponseAPDU response = this.transmitCommand(
                new CommandAPDU(this.ABC4TRUSTCMD, this.getDeviceID, 0, 0, this.pinToByteArr(pin), 2));
        System.out.println("Response from getdeviceID: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            return ByteBuffer.wrap(response.getData()).getShort();
        }
    } catch (CardException e) {
        e.printStackTrace();
    }
    return -1;
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

public String getVersion() {
    try {//ww w  . j  a  v  a 2 s.  c  om
        ResponseAPDU response = this
                .transmitCommand(new CommandAPDU(this.ABC4TRUSTCMD, this.getVersion, 0, 0, 64));
        System.out.println("Response from getVersion: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            String res = "";
            byte[] data = response.getData();
            for (int i = 0; i < 64; i++) {
                res += (char) (data[i] & 0xFF);
            }
            return res;
        }
    } catch (CardException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return null;
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

@Override
public RSAVerificationKey readAuthenticationKey(int pin, int keyID) {
    byte[] data = new byte[5];
    System.arraycopy(this.pinToByteArr(pin), 0, data, 0, 4);
    data[4] = (byte) keyID;
    ByteBuffer buffer = ByteBuffer.allocate(14);
    buffer.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.readAuthenticationKey, 0, 0, 0, 0, 5 });
    buffer.put(data);// ww w.j a  v a  2 s  .  co m
    buffer.put(new byte[] { 0, 0 });
    buffer.position(0);
    try {
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buffer));
        System.out.println("Response from readAuthenticationKey: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            RSAVerificationKey vkey = new RSAVerificationKey();
            vkey.n = new BigInteger(1, response.getData());
            return vkey;
        }
        return null;
    } catch (CardException e) {
        e.printStackTrace();
        return null;
    }
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

@Override
public BigInteger computeDevicePublicKey(int pin) {
    ByteBuffer buf = ByteBuffer.allocate(13);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.getDevicePublicKey, 0, 0, 0, 0, 4 });
    buf.put(this.pinToByteArr(pin));
    buf.put(new byte[] { 0, 0 });
    buf.position(0);/*  w  w w  .ja  v  a 2  s .com*/
    try {
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getDevicePublicKey)", true);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getDevicePublicKey)", false);
        System.out.println("Response from getDevicePublicKey: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            return new BigInteger(1, response.getData());
        }
    } catch (CardException e) {
        e.printStackTrace();
        return null;
    }
    return null;
}

From source file:eu.abc4trust.smartcard.HardwareSmartcard.java

@Override
public SmartcardBackup backupAttendanceData(int pin, String password) {
    SmartcardBackup backup = new SmartcardBackup();

    ByteBuffer buf = ByteBuffer.allocate(21);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.backupDevice, 0, 0, 0, 0, 0x0C });
    buf.put(this.pinToByteArr(pin));
    byte[] password_bytes = Utils.passwordToByteArr(password);
    if (password_bytes == null) {
        return null;
    }/*from   w w w . j  av a 2s .co  m*/
    buf.put(password_bytes);
    buf.put(new byte[] { 0, 0 });
    buf.position(0);

    try {
        //First we backup the device-specific stuff. pin, puk and deviceSecret is encrypted and
        //deviceID and deviceURI is stored in plain text
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from backupDevice: " + response);
        if (this.evaluateStatus(response) != SmartcardStatusCode.OK) {
            return null;
        }
        backup.macDevice = response.getData();
        backup.deviceID = this.getDeviceID(pin);
        backup.deviceUri = this.getDeviceURI(pin);

        //Then we backup the counters. counterID, index and cursor is encrypted, but
        //the threshold and keyID is hidden. Thus we need to save those along with the counterID
        //in cleartext. We assume that the key is put on the card in the initialization phase.
        //            buf = ByteBuffer.allocate(18);
        //            buf.put(new byte[]{(byte)this.ABC4TRUSTCMD, this.backupCounters, 0, 0, 0x0C});
        //            buf.put(this.pinToByteArr(pin));
        //            buf.put(password_bytes);
        //            buf.put((byte)0);
        //            buf.position(0);
        //            response = this.transmitCommand(new CommandAPDU(buf));
        //            System.out.println("Response from backupCounters: " + response);
        //            if(this.evaluateStatus(response) == SmartcardStatusCode.OK){
        //               backup.macCounters = response.getData();
        //            }else{
        //               backup.macCounters = null;
        //            }
        //
        //            List<Byte> credentials = this.listCredentialIDs(pin);
        //            for(Byte credID : credentials){
        //               byte[] credInfo = this.readCredential(pin, credID);
        //               byte status = credInfo[5];
        //               System.out.println("backing up credential: "+this.getCredentialUriFromID(pin, credID)+" with status: " + status);
        //               if(status != 2){
        //                  //Credential is either just created, and thus not backed up, 
        //                  //OR done presenting (limited amount of presentations), thus not backupable.
        //                  continue;
        //               }
        //                buf = ByteBuffer.allocate(22);
        //                buf.put(new byte[]{(byte)this.ABC4TRUSTCMD, (byte) this.backupCredential, 0, 0, 0, 0, 0x0D});
        //                buf.put(this.pinToByteArr(pin));
        //                buf.put(password_bytes);
        //                buf.put(credID);
        //                buf.put(new byte[]{0, 0});
        //                buf.position(0);
        //                response = this.transmitCommand(new CommandAPDU(buf));
        //                System.out.println("Response from backupCredentials: " + response);
        //                if(this.evaluateStatus(response) != SmartcardStatusCode.OK){
        //                    return null;
        //                }
        //                backup.macCredentials.put(credID, response.getData());
        //            }

        //Create AES key using the PIN and Password of the user
        final byte[] IV = new byte[16];
        new SecureRandom().nextBytes(IV);
        Cipher cipher = getAESKey(salt, password, IV, true);
        backup.IV = IV;
        //finally we backup the blobstore
        Map<URI, SmartcardBlob> blobs = this.getBlobs(pin);
        Map<URI, byte[]> encBlobs = new HashMap<URI, byte[]>();
        try {
            for (URI uri : blobs.keySet()) {
                String uriString = uri.toString();
                if (uriString.startsWith(IdemixCryptoEngineUserImpl.IdmxCredential)
                        || uriString.startsWith(UProveCryptoEngineUserImpl.UProveCredential)) {
                    continue;
                }
                byte[] blob = blobs.get(uri).blob;
                encBlobs.put(uri, cipher.doFinal(blob));
            }
        } catch (Exception e) {
            throw new RuntimeException("Could not encrypt blobstore", e);
        }
        backup.blobstore = encBlobs;

    } catch (CardException e) {
        e.printStackTrace();
        return null;
    }

    return backup;
}