Example usage for java.math BigInteger BigInteger

Introduction

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

Prototype

private BigInteger(byte[] magnitude, int signum)

Source Link

Document

This private constructor is for internal use and assumes that its arguments are correct.

Usage

From source file:org.runway.utils.TextUtils.java

/**
 * Generates MD5 for the text passed/*  w w w. j  a  v  a 2  s .c  om*/
 * @param text
 * @return
 */
public static String genMD5(String text) {
    MessageDigest m;
    try {
        m = MessageDigest.getInstance("MD5");
        m.update(text.getBytes(), 0, text.length());
        return new BigInteger(1, m.digest()).toString(16);
    } catch (NoSuchAlgorithmException e) {// return same text if there was
        // an error
        e.printStackTrace();
        return text;
    }
}

From source file:services.SecurityService.java

public String hashPassword(String UserPassword) throws NoSuchAlgorithmException {
    String password = UserPassword + this.RANDOM_SALT;
    MessageDigest m = MessageDigest.getInstance("MD5");
    m.update(password.getBytes(), 0, password.length());
    return new BigInteger(1, m.digest()).toString(16);
}

From source file:org.cloudfoundry.community.servicebroker.postgresql.service.Role.java

public String bindRoleToDatabase(String dbInstanceId) throws SQLException {
    Utils.checkValidUUID(dbInstanceId);//from   w  w  w .java  2 s  . c  o  m

    SecureRandom random = new SecureRandom();
    String passwd = new BigInteger(130, random).toString(32);

    PostgreSQLDatabase.executeUpdate("ALTER ROLE \"" + dbInstanceId + "\" LOGIN password '" + passwd + "'");
    return passwd;
}

From source file:au.gov.dto.dibp.appointments.security.csrf.CookieBasedCsrfTokenRepository.java

@Override
public CsrfToken generateToken(HttpServletRequest request) {
    String tokenValue = new BigInteger(130, secureRandom).toString(32); // http://stackoverflow.com/a/41156
    return new DefaultCsrfToken(CSRF_HEADER_NAME, CSRF_COOKIE_AND_PARAMETER_NAME, tokenValue);
}

From source file:io.mapzone.controller.um.repository.AuthToken.java

private AuthToken() {
    // http://stackoverflow.com/questions/41107/how-to-generate-a-random-alpha-numeric-string
    data = new BigInteger(130, random.get());
}

From source file:net.peterkuterna.appengine.apps.devoxxsched.util.Md5Calculator.java

public String calculateMd5() {
    final byte[] response = getResponse(requestUri);
    if (response != null) {
        try {//ww  w.j  av  a  2  s  .  c o  m
            MessageDigest mdEnc = MessageDigest.getInstance("MD5");
            mdEnc.update(response);
            return new BigInteger(1, mdEnc.digest()).toString(16);
        } catch (NoSuchAlgorithmException e) {
        }
    }
    return null;
}

From source file:ezbake.warehaus.WarehausUtils.java

public static Text getKey(String uri) {
    try {/*from   w w  w  .  j a va2 s  .c  o m*/
        MessageDigest messageDigest = MessageDigest.getInstance("SHA-256");
        messageDigest.update(uri.getBytes());
        byte[] hash = messageDigest.digest();
        BigInteger bigInt = new BigInteger(1, hash);
        String hashtext = bigInt.toString(16);
        return new Text(hashtext + ":" + uri);
    } catch (NoSuchAlgorithmException e) {
        // We hopefully should never end up here
        logger.error("NoSuchAlgorithmException thrown while attempting " + "to hash key.", e);
        throw new RuntimeException(e);
    }
}

From source file:com.github.tell.arithmetic.integer.gmp.MPZBenchmarking.java

@SuppressWarnings("UnusedAssignment")
private static StopWatch mulWithBigInteger(final int length) {
    final BigInteger x1 = new BigInteger(length, secureRandom);
    final BigInteger x2 = new BigInteger(length, secureRandom);

    @SuppressWarnings("unused")
    BigInteger x3 = BigInteger.valueOf(0);
    final StopWatch timer = new StopWatch();
    timer.start();/*w w w  .j a v  a 2 s .  c  om*/
    for (int j = 0; j < numOfLoop; j++) {
        x3 = x1.multiply(x2);
    }
    timer.stop();

    printout(timer, length, "BigInteger");

    return timer;
}

From source file:com.github.horrorho.inflatabledonkey.cloudkitty.CloudKitty.java

public static CloudKitty backupd(CKInit ckInit, String cloudKitToken) {

    String container = "com.apple.backup.ios";
    String bundle = "com.apple.backupd";

    String cloudKitUserId = ckInit.cloudKitUserId();
    String baseUrl = ckInit.production().url();

    String deviceID = UUID.randomUUID().toString();
    String deviceHardwareID = new BigInteger(256, ThreadLocalRandom.current()).toString(16)
            .toUpperCase(Locale.US);

    RequestOperationFactory factory = new RequestOperationFactory(cloudKitUserId, container, bundle,
            deviceHardwareID, deviceID);

    InputStreamResponseHandler<List<CloudKit.ResponseOperation>> responseHandler = new InputStreamResponseHandler<>(
            new RawProtoDecoderLogger(null));

    return new CloudKitty(factory, container, bundle, cloudKitUserId, cloudKitToken, baseUrl, responseHandler);
}

From source file:com.baran.file.FileOperator.java

public static String uniqueNameGenerator(String inputFile) {
    // randomization
    SecureRandom random = new SecureRandom();
    BigInteger bi = new BigInteger(130, random);
    String uniqueEncFile = String.valueOf((BigInteger) bi);

    // commons-io-2.4.jar
    String fileNameWithOutExt = FilenameUtils.removeExtension(inputFile);

    String randomFileName = System.getProperty("user.dir") + "\\" + fileNameWithOutExt + "_" + uniqueEncFile
            + ".enc";

    return randomFileName;
}