List of usage examples for java.math BigInteger valueOf
private static BigInteger valueOf(int val[])
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); }
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; }
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*/ }
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(); }
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); }
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); }
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; }