Example usage for javax.smartcardio ResponseAPDU getData

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

private BigInteger getGenerator(int pin, int groupID, int genID) {
    if (cachedGenerator.containsKey(groupID + ":" + genID)) {
        BigInteger cached = cachedGenerator.get(groupID + ":" + genID);
        System.out.println("Cached readGenerator: " + groupID + " : " + genID + " : " + cached);
        return cached;
    }/*from w  w w .  jav a 2 s.  c  om*/

    ByteBuffer buf = ByteBuffer.allocate(15);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.readGenerator, 0, 0, 0, 0, 6 });
    buf.put(this.pinToByteArr(pin));
    buf.put(new byte[] { (byte) groupID, (byte) genID, 0, 0 });
    buf.position(0);
    try {
        if (printInput)
            System.out.println("Input for readGenerator: " + groupID + " : " + genID + " : "
                    + Arrays.toString(buf.array()));

        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(readGenerator)", true);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(readGenerator)", false);

        System.out.println("Response from readGenerator: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            BigInteger generator = new BigInteger(1, response.getData());
            System.out.println("Generator - is : " + groupID + " : " + genID + " : " + generator);
            cachedGenerator.put(groupID + ":" + genID, generator);
            return generator;
        }
    } catch (CardException e) {
        e.printStackTrace();
    }
    return null;
}

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

private BigInteger getScopeExclusiveCommitment(int pin, URI scope) {
    byte[] uri = this.uriToByteArr(scope);
    ByteBuffer buf = ByteBuffer.allocate(13 + uri.length);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.getScopeExclusiveCommitment, 0, 0, 0 });
    buf.put(this.intLengthToShortByteArr(4 + uri.length));
    buf.put(this.pinToByteArr(pin));
    buf.put(uri);/* w  ww.  j a v a2s  . c o m*/
    buf.put(new byte[] { 0, 0 });
    buf.position(0);
    try {
        if (printInput)
            System.out.println("Input for getScopeExclusiveCommitment: " + Arrays.toString(buf.array()));

        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getScopeExclusiveCommitment)", true);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getScopeExclusiveCommitment)", false);

        System.out.println("Response from getScopeExclusiveCommitment: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            return new BigInteger(1, response.getData());
        } else {
            throw new RuntimeException("Failed scope exclusive Commitment. Card answered: " + response);
        }
    } catch (CardException e) {
        throw new RuntimeException("getScopeExclusiveCommitment crashed.", e);
    }
}

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

/**
 * // w w w  . j  ava 2  s. c o m
 * @param pin
 * @param groupID
 * @param compType 0: modulus, 1: group order 2: cofactor
 * @return
 */
private BigInteger getGroupComponent(int pin, int groupID, int compType) {
    if (cachedGroupComponent.containsKey(groupID + ":" + compType)) {
        BigInteger cached = cachedGroupComponent.get(groupID + ":" + compType);
        System.out.println("Cached readGroupComponent: " + groupID + " : " + compType + " : " + cached);
        return cached;
    }
    ByteBuffer buf = ByteBuffer.allocate(15);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.readGroupComponent, 0, 0, 0, 0, 6 });
    buf.put(this.pinToByteArr(pin));
    buf.put(new byte[] { (byte) groupID, (byte) compType, 0, 0 });
    buf.position(0);
    try {
        if (printInput)
            System.out.println("Input for readGroupComponent: " + groupID + " : " + compType + " : "
                    + Arrays.toString(buf.array()));

        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(readGroupComponent)", true);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(readGroupComponent)", false);

        System.out.println("Response from readGroupComponent: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            BigInteger groupComponent = new BigInteger(1, response.getData());
            System.out.println("GroupComponent - is : " + groupID + " : " + compType + " : " + groupComponent);

            cachedGroupComponent.put(groupID + ":" + compType, groupComponent);
            return groupComponent;
        }
    } catch (CardException e) {
        e.printStackTrace();
    }
    return null;
}

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

@Override
public BigInteger computeScopeExclusivePseudonym(int pin, URI scope) {
    if (cachedScopeExclusivePseudonym.containsKey(scope)) {
        BigInteger pv = cachedScopeExclusivePseudonym.get(scope);
        System.out.println("Cached from getScopeExclusivePseudonym: " + scope + " : " + pv);
        return pv;
    }//from   ww w.  j  av a 2 s  .  com
    try {
        byte[] scopeBytes = this.uriToByteArr(scope);
        if (scopeBytes.length > 2044) {
            throw new RuntimeException("The inputted scope is too large.");
        }
        byte[] begin = new byte[] { (byte) this.ABC4TRUSTCMD, this.getScopeExclusivePseudonym, 0, 0, 0 };
        ByteBuffer buf = ByteBuffer.allocate(9 + 4 + scopeBytes.length);
        buf.put(begin);
        buf.put(this.intLengthToShortByteArr(4 + scopeBytes.length));
        buf.put(this.pinToByteArr(pin));
        buf.put(scopeBytes);
        buf.put(new byte[] { 0, 0 });
        buf.position(0);

        if (printInput)
            System.out.println("Input for getScopeExclusivePseudonym: " + Arrays.toString(buf.array()));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getScopeExclusivePseudonym)", true);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getScopeExclusivePseudonym)", false);
        System.out.println("Response from getScopeExclusivePseudonym: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            BigInteger pv = new BigInteger(1, response.getData());
            cachedScopeExclusivePseudonym.put(scope, pv);
            return pv;
        }
        return null;
    } catch (CardException e) {
        e.printStackTrace();
        return null;
    }
}

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

private BigInteger computeDevicePublicKeyCommitment(int pin) {
    ByteBuffer buf = ByteBuffer.allocate(13);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.getDeviceCommitment, 0, 0, 0, 0, 4 });
    buf.put(this.pinToByteArr(pin));
    buf.put(new byte[] { 0, 0 });
    buf.position(0);/* w  w w  .  j av  a  2s  . c  om*/
    try {
        if (printInput)
            System.out.println("Input for getDeviceCommitment: " + Arrays.toString(buf.array()));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getDeviceCommitment)", true);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getDeviceCommitment)", false);
        System.out.println("Response from getDeviceCommitment: " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            System.out.println("And this is the output: " + Arrays.toString(response.getData()));
            System.out.println("Or this bigInt: " + new BigInteger(1, response.getData()));
            return new BigInteger(1, response.getData());
        }
    } catch (CardException e) {
        e.printStackTrace();
    }
    return null;
}

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

@Override
public ZkProofCommitment prepareZkProof(int pin, Set<URI> credentialIds, Set<URI> scopeExclusivePseudonyms,
        boolean includeDevicePublicKeyProof) {
    TimingsLogger.logTiming("HardwareSmartcard.prepareZkProof", true);

    ZkProofCommitment comm = new ZkProofCommitment();

    SystemParameters params = this.getSystemParameters(pin);
    comm.spec = new ZkProofSpecification(params);
    comm.spec.parametersForPseudonyms = params;
    comm.spec.credentialBases = new HashMap<URI, GroupParameters>();
    comm.spec.credFragment = new HashMap<URI, BigInteger>();
    for (URI courseId : credentialIds) {
        byte credID = this.getCredentialIDFromUri(pin, courseId);
        byte[] cred = this.readCredential(pin, credID);
        byte issuerID = cred[0];
        GroupParameters groupParams = this.getGroupParameters(pin, issuerID);
        comm.spec.credentialBases.put(courseId, groupParams);
        comm.spec.credFragment.put(courseId, this.computeCredentialFragment(pin, courseId));
    }//from w w  w  . ja  v  a  2s.co  m
    comm.spec.scopeExclusivePseudonymValues = new HashMap<URI, BigInteger>();

    byte[] data = new byte[5];
    System.arraycopy(this.pinToByteArr(pin), 0, data, 0, 4);
    data[4] = 1; //ProverID - TODO: hardcoded to 1 as of now. Assuming there can be only 1 for the pilot
    byte[] proofSession = null;
    ByteBuffer buf = ByteBuffer.allocate(11);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.startCommitments, 0, 0, 5 });
    buf.put(data);
    buf.put((byte) 16);
    buf.position(0);
    try {
        if (printInput)
            System.out.println("Input for startCommitments: " + Arrays.toString(buf.array()));

        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(startCommitments)", true);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(startCommitments)", false);

        System.out.println("Response from startCommitments: " + response);
        System.out.println("And this is the output: " + Arrays.toString(response.getData()));
        if (this.evaluateStatus(response) != SmartcardStatusCode.OK) {
            return null;
        }
        proofSession = response.getData();
    } catch (CardException e) {
        throw new RuntimeException("PrepareZkProof crashed.", e);
    }
    //ProofStatus set to 1        
    comm.nonceCommitment = proofSession;

    if (includeDevicePublicKeyProof) {
        comm.spec.devicePublicKey = this.computeDevicePublicKey(pin);
        comm.commitmentForDevicePublicKey = this.computeDevicePublicKeyCommitment(pin);
    }

    boolean notEnoughAttendance = false;
    for (URI uri : credentialIds) {
        byte credID = this.getCredentialIDFromUri(pin, uri);
        byte[] credInfo = readCredential(pin, credID);
        //byte issuerID = credInfo[0];
        //byte counterID = this.readIssuer(pin, issuerID)[4];
        byte status = credInfo[5];
        byte presentOrIssuance = this.getIssuanceCommitment;
        String command = "getIssuanceCommitment";
        //System.out.println("\nStatus of credential before commitments are made: " + status);
        if (status == 2) {
            //credential has already been issued. So we assume we want to present it.
            command = "getPresentationCommitment";
            presentOrIssuance = this.getPresentationCommitment;
        }
        /*
        if(counterID != 0){
           //Counter active. We must know if the attendance is high enough.
           byte[] counterInfo = readCounter(pin, counterID);
           int index = counterInfo[1];
           int threshold = counterInfo[2];
           if(index < threshold && presentOrIssuance == this.getPresentationCommitment){
          //Not enough attendance. aborting at the end; Done because of timing attacks.
          notEnoughAttendance = true;
           }
        } 
        */

        buf = ByteBuffer.allocate(14);
        buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, presentOrIssuance, 0, 0, 0, 0, 5 });
        buf.put(this.pinToByteArr(pin));
        buf.put(credID);
        buf.put(new byte[] { 0, 0 });
        buf.position(0);
        try {
            if (printInput)
                System.out.println("Input for " + command + ": " + Arrays.toString(buf.array()));

            TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(" + command + ")", true);
            ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
            TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(" + command + ")", false);

            System.out.println("Response from " + command + ": " + response);
            if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
                comm.commitmentForCreds.put(uri, new BigInteger(1, response.getData()));
            } else {
                return null;
            }
        } catch (CardException e) {
            throw new RuntimeException("PrepareZkProof crashed.", e);
        }
    }

    for (URI scope : scopeExclusivePseudonyms) {
        BigInteger pseudonymCommitment = this.getScopeExclusiveCommitment(pin, scope);
        comm.commitmentForScopeExclusivePseudonyms.put(scope, pseudonymCommitment);
        comm.spec.scopeExclusivePseudonymValues.put(scope, this.computeScopeExclusivePseudonym(pin, scope));
    }
    if (notEnoughAttendance) {
        System.out.println("Because of not enough attendance?");
        TimingsLogger.logTiming("HardwareSmartcard.prepareZkProof", false);
        return null;
    } else {
        TimingsLogger.logTiming("HardwareSmartcard.prepareZkProof", false);
        return comm;
    }
}

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

@Override
public BigInteger computeCredentialFragment(int pin, URI credentialId) {
    //fragment is equal to the public key of a credential
    if (cachedCredentialFragment.containsKey(credentialId)) {
        BigInteger cached = cachedCredentialFragment.get(credentialId);
        System.out.println("Cached getCredentialPublicKey: " + credentialId + " - " + cached);
        return cached;
    }//ww  w  .j av a 2  s . c o m
    int credID = this.getCredentialIDFromUri(pin, credentialId);
    ByteBuffer buf = ByteBuffer.allocate(14);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.getCredentialPublicKey, 0, 0, 0, 0, 5 });
    buf.put(this.pinToByteArr(pin));
    buf.put((byte) credID);
    buf.put(new byte[] { 0, 0 });
    buf.position(0);
    try {
        if (printInput)
            System.out.println(
                    "Input for getCredentialPublicKey: " + credentialId + " : " + Arrays.toString(buf.array()));

        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getCredentialPublicKey)", true);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        TimingsLogger.logTiming("HardwareSmartcard.transmitCommand(getCredentialPublicKey)", false);

        System.out.println("Response from getCredentialPublicKey (fragment): " + response);
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            System.out.println("And this is the output: " + Arrays.toString(response.getData()));
            BigInteger credentialFragment = new BigInteger(1, response.getData());
            System.out.println("which gives this BigInteger:  " + credentialFragment);
            cachedCredentialFragment.put(credentialId, credentialFragment);
            return credentialFragment;
        }
    } catch (CardException e) {
        e.printStackTrace();
    }
    return null;
}

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From source file:org.opensc.pkcs15.token.impl.CardOSToken.java

@Override
public InputStream readEFData() throws IOException {

    if (this.currentFile == null)
        throw new IOException("No current EF selected.");

    // READ BINARY, P1=0x00, P2=0x00, ID -> read current EF from position 0.
    CommandAPDU cmd = new CommandAPDU(0x00, 0xB0, 0x00, 0x00, DEFAULT_EXTENDED_LE);

    try {//from  w  ww. ja v a 2  s  .c o  m
        ResponseAPDU resp = this.channel.transmit(cmd);

        return new ByteArrayInputStream(resp.getData());

    } catch (CardException e) {
        throw new PKCS15Exception("Error sending READ BINARY", e);
    }
}

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From source file:org.opensc.pkcs15.token.impl.CardOSToken.java

private DataInputStream getSelectFileData(ResponseAPDU resp) throws IOException {
    if (resp.getSW() != PKCS15Exception.ERROR_OK)
        throw new PKCS15Exception("Card error in response to SELECT FILE", resp.getSW());

    if (resp.getNr() < 2)
        throw new IOException("response to SELECT FILE contains less than 2 bytes.");

    int b = resp.getData()[0];

    if (b != 0x6f)
        throw new IOException("response to SELECT FILE contains no FCI data.");

    int n = ((int) resp.getData()[1]) & 0xff;

    if (n != resp.getNr() - 2)
        throw new IOException("FCI dat in response to SELECT FILE contains invalid length.");

    return new DataInputStream(new ByteArrayInputStream(resp.getData(), 2, n));

}

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From source file:src.eidreader.EstEIDUtil.java

public static byte[] sendCommand(CardChannel channel, CommandAPDU command) throws CardException {
    ResponseAPDU responseAPDU = channel.transmit(command);
    int responseStatus = responseAPDU.getSW();

    if (!isResponseOk(responseStatus)) {
        throw new RuntimeException("Error code: " + responseStatus);
    }/*  ww w .  j  a  v  a 2s  .  c  om*/

    return responseAPDU.getData();
}

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