Example usage for java.math BigInteger valueOf

Introduction

In this page you can find the example usage for java.math BigInteger valueOf.

Prototype

private static BigInteger valueOf(int val[]) 

Source Link

Document

Returns a BigInteger with the given two's complement representation.

Usage

From source file:eu.dety.burp.joseph.attacks.bleichenbacher_pkcs1.BleichenbacherPkcs1DecryptionAttackExecutor.java

private void stepTwoA() throws Exception {
    byte[] send;//from   w w  w  .  j  av a 2s  .  com
    BigInteger n = this.pubKey.getModulus();

    loggerInstance.log(getClass(), "Step 2a: Starting the search", Logger.LogLevel.INFO);

    // si = ceil(n/(3B))
    BigInteger tmp[] = n.divideAndRemainder(BigInteger.valueOf(3).multiply(bigB));
    if (BigInteger.ZERO.compareTo(tmp[1]) != 0) {
        this.si = tmp[0].add(BigInteger.ONE);
    } else {
        this.si = tmp[0];
    }

    // correction will be done in do while
    this.si = this.si.subtract(BigInteger.ONE);

    IHttpRequestResponse response;
    byte[] request;

    do {
        // Check if user has cancelled the worker
        if (isCancelled()) {
            loggerInstance.log(getClass(), "Decryption Attack Executor Worker cancelled by user",
                    Logger.LogLevel.INFO);
            return;
        }

        this.si = this.si.add(BigInteger.ONE);
        send = prepareMsg(this.c0, this.si);

        request = this.requestResponse.getRequest();
        String[] components = Decoder.getComponents(this.parameter.getJoseValue());
        components[1] = Decoder.base64UrlEncode(send);

        String newComponentsConcatenated = Decoder.concatComponents(components);

        request = JoseParameter.updateRequest(request, this.parameter, helpers, newComponentsConcatenated);

        response = callbacks.makeHttpRequest(this.httpService, request);
        updateAmountRequest();

    } while (oracle.getResult(response.getResponse()) != BleichenbacherPkcs1Oracle.Result.VALID);
    loggerInstance.log(getClass(), "Matching response: " + helpers.bytesToString(response.getResponse()),
            Logger.LogLevel.DEBUG);
}

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From source file:com.vmware.demo.SamlUtils.java

/**
 * Generate a public x509 cert, based on a key.
 *
 * @param key KeyPair used to generate public Cert, private key in KeyPair not exposed.
 * @param issuer If generating an SSL Cert, issuer needs to match hostname
 * @return/*w ww  . j  ava 2 s.  c o m*/
 * @throws SamlException
 */
public static X509Certificate generateCert(KeyPair key, String issuer) throws SamlException {
    X509Certificate binCert;
    try {
        X509V3CertificateGenerator v3CertGen = new X509V3CertificateGenerator();

        // create the certificate - version 3
        v3CertGen.reset();
        v3CertGen.setSerialNumber(BigInteger.valueOf(1));
        v3CertGen.setIssuerDN(new X509Principal(issuer));
        v3CertGen.setNotBefore(new Date(System.currentTimeMillis()));
        v3CertGen.setNotAfter(new Date(System.currentTimeMillis() + (1000L * 60 * 60 * 24 * 365 * 10))); //10 years
        v3CertGen.setSubjectDN(new X509Principal(issuer));
        v3CertGen.setPublicKey(key.getPublic());
        v3CertGen.setSignatureAlgorithm("SHA1WithRSAEncryption");

        // add the extensions
        v3CertGen.addExtension(org.bouncycastle.asn1.x509.X509Extensions.BasicConstraints, false,
                new BasicConstraints(true));

        // generate the actual cert
        binCert = v3CertGen.generate(key.getPrivate());

        // check the cert
        binCert.checkValidity(new Date());
        binCert.verify(key.getPublic());
    } catch (Exception e) {
        throw new SamlException("Failed to generate certificate.", e);
    }

    return binCert;
}

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From source file:co.rsk.remasc.Remasc.java

private void payIncludedSiblings(List<Sibling> siblings, BigInteger topReward) {
    long perLateBlockPunishmentDivisor = remascConstants.getLateUncleInclusionPunishmentDivisor();
    for (Sibling sibling : siblings) {
        long processingBlockNumber = executionBlock.getNumber() - remascConstants.getMaturity();
        long numberOfBlocksLate = sibling.getIncludedHeight() - processingBlockNumber - 1L;
        BigInteger lateInclusionPunishment = topReward.multiply(BigInteger.valueOf(numberOfBlocksLate))
                .divide(BigInteger.valueOf(perLateBlockPunishmentDivisor));
        transfer(sibling.getCoinbase(), topReward.subtract(lateInclusionPunishment));
        provider.addToBurnBalance(lateInclusionPunishment);
    }/*  w ww.  j a v a  2s.  c  om*/
}

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From source file:de.jfachwert.post.Postfach.java

/**
 * Liefert die Postfach-Nummer als formattierte Zahl. Dies macht natuerlich
 * nur Sinn, wenn diese Nummer gesetzt ist. Daher wird eine
 * {@link IllegalStateException} geworfen, wenn dies nicht der Fall ist.
 *
 * @return z.B. "8 15"//from w  ww.  j a  v a 2  s.  co  m
 */
@SuppressWarnings("squid:S3655")
public String getNummerFormatted() {
    if (!this.getNummer().isPresent()) {
        throw new IllegalStateException("no number present");
    }
    BigInteger hundert = BigInteger.valueOf(100);
    StringBuilder formatted = new StringBuilder();
    for (BigInteger i = this.getNummer().get(); i.compareTo(BigInteger.ONE) > 0; i = i.divide(hundert)) {
        formatted.insert(0, " " + i.remainder(hundert));
    }
    return formatted.toString().trim();
}

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From source file:Peer.java

@Override
public boolean insert(String word, String def, Level logLevel) throws Exception {
    lg.log(Level.FINEST, "insert Entry");

    // Max key value
    Key max = new Key(BigInteger.valueOf((int) Math.pow(2, hasher.getBitSize()))).pred();

    // Get key hash 
    Key key = hasher.getHash(word);

    lg.log(Level.FINER, " Hashed word " + word + " with definition " + def + " has key " + key);

    // If this peer knows the which peer that key belongs to ...
    if (//from  w w  w  .  jav  a 2 s  .c o  m
    // Normal ascending rande
    pred == null || (key.compare(pred) > 0 && key.compare(nodeid) <= 0)
    // Modulo range 
            || (pred.compare(nodeid) > 0 && (key.compare(pred) > 0 && key.compare(max) <= 0)
                    || (key.compare(nodeid) <= 0))) {
        lg.log(logLevel,
                "(insert)Peer " + nodeid + " should have word " + word + "(" + def + ") with key " + key);
        dict.put(word, def);
        lg.log(Level.FINEST, "insert Exit");
        return true;
    }

    // ... else find the successor through the finer table
    Key closestNode = ft.getClosestSuccessor(key);

    lg.log(logLevel, "(insert)Peer " + nodeid + " should NOT have word " + word + "(" + def + ") with key "
            + key + " ... calling insert on the best finger table match " + closestNode);

    PeerInterface peer = getPeer(closestNode);
    lg.log(Level.FINEST, "insert Exit");
    return peer.insert(word, def, logLevel);
}

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From source file:com.cognitect.transit.TransitTest.java

public void testReadRatio() throws IOException {

    Ratio r = (Ratio) reader("{\"~#ratio\": [\"~n1\",\"~n2\"]}").read();

    assertEquals(BigInteger.valueOf(1), r.getNumerator());
    assertEquals(BigInteger.valueOf(2), r.getDenominator());
    assertEquals(0.5d, r.getValue().doubleValue(), 0.01d);
}

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From source file:com.peterphi.std.crypto.keygen.CaHelper.java

/**
 * @param kp//  w w w.  j  a  va 2 s  .  com
 * @param issuer
 * @param subject
 *
 * @return
 */
public static X509Certificate generateCaCertificate(final String friendlyName, final KeyPair kp,
        final BigInteger serial, final X509Name issuer, final X509Name subject) throws Exception {

    X509Certificate cert = null;

    X509V3CertificateGenerator gen = new X509V3CertificateGenerator();
    gen.setIssuerDN(issuer);
    setNotBeforeNotAfter(gen, 20); // The CA certificate is valid for 20 years
    gen.setSubjectDN(subject);
    gen.setPublicKey(kp.getPublic());
    gen.setSignatureAlgorithm(getSignatureAlgorithm());

    if (serial != null)
        gen.setSerialNumber(serial);
    else
        gen.setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));

    gen = addCaExtensions(gen, kp.getPublic());
    // gen.addExtension(X509Extensions.SubjectKeyIdentifier, false,
    // new SubjectKeyIdentifierStructure(kp.getPublic()));
    cert = gen.generate(kp.getPrivate(), "BC");

    cert.checkValidity();
    cert.verify(kp.getPublic(), "BC");

    if (friendlyName != null) {
        PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) cert;
        bagAttr.setBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_friendlyName, new DERBMPString(friendlyName));
    }

    return cert;
}

---

From source file:org.archive.bdb.BdbModule.java

protected void setup(File f, boolean create) throws DatabaseException, IOException {
    EnvironmentConfig config = new EnvironmentConfig();
    config.setAllowCreate(create);//from  w  w  w.  j a  va 2  s.  c o  m
    config.setLockTimeout(75, TimeUnit.MINUTES); // set to max

    if (getCacheSize() > 0) {
        config.setCacheSize(getCacheSize());
        if (getCachePercent() > 0) {
            LOGGER.warning("cachePercent and cacheSize are both set. Only cacheSize will be used.");
        }
    } else if (getCachePercent() > 0) {
        config.setCachePercent(getCachePercent());
    }

    config.setSharedCache(getUseSharedCache());

    // we take the advice literally from...
    // http://www.oracle.com/technology/products/berkeley-db/faq/je_faq.html#33
    long nLockTables = getExpectedConcurrency() - 1;
    while (!BigInteger.valueOf(nLockTables).isProbablePrime(Integer.MAX_VALUE)) {
        nLockTables--;
    }
    config.setConfigParam("je.lock.nLockTables", Long.toString(nLockTables));

    // triple this value to 6K because stats show many faults
    config.setConfigParam("je.log.faultReadSize", "6144");

    if (!getUseHardLinkCheckpoints()) {
        // to support checkpoints by textual manifest only, 
        // prevent BDB's cleaner from deleting log files
        config.setConfigParam("je.cleaner.expunge", "false");
    } // else leave whatever other setting was already in place

    org.archive.util.FileUtils.ensureWriteableDirectory(f);
    this.bdbEnvironment = new EnhancedEnvironment(f, config);
    this.classCatalog = this.bdbEnvironment.getClassCatalog();
    if (!create) {
        // freeze last log file -- so that originating checkpoint isn't fouled
        DbBackup dbBackup = new DbBackup(bdbEnvironment);
        dbBackup.startBackup();
        dbBackup.endBackup();
    }
}

---

From source file:com.aqnote.shared.cryptology.cert.gen.CertGenerator.java

public X509Certificate signCert(PKCS10CertificationRequest pkcs10CSR, X500Name issuer, KeyPair pKeyPair)
        throws Exception {
    SubjectPublicKeyInfo pkInfo = pkcs10CSR.getSubjectPublicKeyInfo();
    RSAKeyParameters rsa = (RSAKeyParameters) PublicKeyFactory.createKey(pkInfo);
    RSAPublicKeySpec rsaSpec = new RSAPublicKeySpec(rsa.getModulus(), rsa.getExponent());
    KeyFactory kf = KeyFactory.getInstance(ALG_RSA);
    PublicKey publicKey = kf.generatePublic(rsaSpec);

    SubjectPublicKeyInfo keyInfo = new SubjectPublicKeyInfo(ASN1Sequence.getInstance(publicKey.getEncoded()));
    X509v3CertificateBuilder certBuilder = new X509v3CertificateBuilder(issuer,
            BigInteger.valueOf(System.currentTimeMillis()),
            new Date(System.currentTimeMillis() - DateConstant.ONE_DAY),
            new Date(System.currentTimeMillis() + DateConstant.ONE_YEAR), pkcs10CSR.getSubject(), keyInfo);

    ContentSigner signer = new JcaContentSignerBuilder(ALG_SIG_SHA256_RSA).setProvider(JCE_PROVIDER)
            .build(pKeyPair.getPrivate());
    X509Certificate signedCert = new JcaX509CertificateConverter().setProvider(JCE_PROVIDER)
            .getCertificate(certBuilder.build(signer));
    signedCert.verify(pKeyPair.getPublic());

    return signedCert;
}

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