Example usage for javax.smartcardio CommandAPDU CommandAPDU

Introduction

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

Prototype

public CommandAPDU(ByteBuffer apdu) 

Source Link

Document

Creates a CommandAPDU from the ByteBuffer containing the complete APDU contents (header and body).

Usage

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

/**
 * //from   w  w w  . ja v a 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

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  ww  w .j  a v a 2 s. co  m

    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

@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;
    }//  w w  w.  j  a  v  a2  s  . c om
    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;
    }
}

---

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);//from   w w w  .  j a va  2 s  .c  o  m
    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 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 ww. j  av a  2  s  .  com*/
    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;
    }
}

---

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

/**
  * //from   w w w  . ja va  2s  .  c om
  * @param pin
  * @param credentialID
  * @return byte array containing: issuerID || size(v) [2 bytes] || size(kv) [2 bytes] || status || prescount
  */
private byte[] readCredential(int pin, int credentialID) {
    byte[] data = new byte[5];
    System.arraycopy(this.pinToByteArr(pin), 0, data, 0, 4);
    data[4] = (byte) credentialID;
    ByteBuffer buf = ByteBuffer.allocate(11);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.readCredential, 0, 0, 5 });
    buf.put(data);
    buf.put((byte) 7);
    buf.position(0);
    try {
        if (printInput)
            System.out.println("Input for readCredential: " + Arrays.toString(buf.array()));
        System.out.println("Reading the on-board credential with ID=" + credentialID);
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from readCredential: " + response);
        System.out.println("With the data: " + Arrays.toString(response.getData()));
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            return response.getData();
        }
    } catch (CardException e) {
        e.printStackTrace();
    }
    return null;
}

---

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

/**
 * @param pin//from   ww  w . j a  v  a 2s.  c o m
 * @param issuerID
 * @return byte array containing: groupID || genID1 || genID2 || numpres || counterID
 */
private byte[] readIssuer(int pin, int issuerID) {
    if (cachedIssuerByteArray.containsKey(issuerID)) {
        byte[] cached = cachedIssuerByteArray.get(issuerID);
        System.out.println("ReadIssuer - use cached : " + (cached == null ? null : Arrays.toString(cached)));
        return cached;
    }

    byte[] data = new byte[5];
    System.arraycopy(this.pinToByteArr(pin), 0, data, 0, 4);
    data[4] = (byte) issuerID;
    ByteBuffer buf = ByteBuffer.allocate(11);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.readIssuer, 0, 0, 5 });
    buf.put(data);
    buf.put((byte) 5);
    buf.position(0);
    try {
        if (printInput)
            System.out.println("Input for readIssuer: " + Arrays.toString(buf.array()));
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from readIssuer: " + response);
        System.out.println("With the data: " + Arrays.toString(response.getData()));
        if (this.evaluateStatus(response) == SmartcardStatusCode.OK) {
            cachedIssuerByteArray.put(issuerID, response.getData());
            return response.getData();
        }
    } catch (CardException e) {
        e.printStackTrace();
    }
    cachedIssuerByteArray.put(issuerID, null);
    return null;
}

---

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);/*from   w w w.  java 2  s .  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

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);/*from  w ww . ja va  2 s .  c  om*/
    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);
    }
}

---

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

@Override
public ZkProofResponse finalizeZkProof(int pin, byte[] challengeHashPreimage, Set<URI> credentialIDs,
        Set<URI> scopeExclusivePseudonyms, byte[] nonceCommitment) {
    byte[] data = new byte[4 + 1 + 1 + 16 + challengeHashPreimage.length]; //pin, prooverID, d which is the number of proofs, proofsession and h
    System.arraycopy(this.pinToByteArr(pin), 0, data, 0, 4);
    data[4] = 1; //TODO: ProoverID - Hardcoded for now
    data[5] = 1; //number of proofs - hardcoded to 1 for pilot.
    System.out.println("nonce length: " + nonceCommitment.length);
    System.out.println("data length: " + data.length);
    System.arraycopy(nonceCommitment, 0, data, 6, 16);
    System.arraycopy(challengeHashPreimage, 0, data, 4 + 1 + 1 + 16, challengeHashPreimage.length);

    ByteBuffer buf = ByteBuffer.allocate(7 + data.length);
    buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, this.startResponses, 0, 0, 0 });
    buf.put(this.intLengthToShortByteArr(data.length));
    buf.put(data);//from  w w w .  j ava2s.c om
    buf.position(0);
    if (printInput)
        System.out.println("Input for startResponses: " + Arrays.toString(buf.array()));
    try {
        ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
        System.out.println("Response from startResponses: " + response);
        System.out.println("And this is the output: " + Arrays.toString(response.getData()));
        if (this.evaluateStatus(response) != SmartcardStatusCode.OK) {
            return null;
        }
    } catch (CardException e) {
        e.printStackTrace();
        return null;
    }

    ZkProofResponse zkpr = new ZkProofResponse();

    zkpr.responseForDeviceSecret = this.computeDevicePublicKeyResponse(pin);

    //For Get issuance response
    for (URI uri : credentialIDs) {
        byte credID = this.getCredentialIDFromUri(pin, uri);
        byte[] credInfo = readCredential(pin, credID);
        byte status = credInfo[5];
        String command = "getIssuanceResponse";
        byte issueOrPresent = this.getIssuanceResponse;
        if (status >= 2) {
            System.out.println("Presentation. Status: " + status);
            //credential has already been issued, so we want to present response.
            command = "getPresentationResponse";
            issueOrPresent = this.getPresentationResponse;
        }
        buf = ByteBuffer.allocate(14);
        buf.put(new byte[] { (byte) this.ABC4TRUSTCMD, issueOrPresent, 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()));
            ResponseAPDU response = this.transmitCommand(new CommandAPDU(buf));
            System.out.println("Response from " + command + ": " + response);
            if (this.evaluateStatus(response) != SmartcardStatusCode.OK) {
                return null;
            }
            System.out.println("data returned: size: " + response.getData().length + " value: "
                    + Arrays.toString(response.getData()));
            byte[] zx = new byte[response.getNr() / 2];
            byte[] zv = new byte[response.getNr() / 2];
            System.arraycopy(response.getData(), 0, zx, 0, zx.length);
            System.arraycopy(response.getData(), zx.length, zv, 0, zv.length);
            System.out.println("zx: " + Arrays.toString(zx));
            System.out.println("zv: " + Arrays.toString(zv));
            zkpr.responseForCourses.put(uri, new BigInteger(1, zv));
            zkpr.responseForDeviceSecret = new BigInteger(1, zx);
        } catch (CardException e) {
            e.printStackTrace();
            return null;
        }
    }

    return zkpr;
}

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