Example usage for java.math BigInteger toByteArray

Introduction

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

Prototype

public byte[] toByteArray() 

Source Link

Document

Returns a byte array containing the two's-complement representation of this BigInteger.

Usage

From source file:org.apli.modelbeans.facturacion.cfdi.CFDv32.java

@Override
public void sellar(PrivateKey key, X509Certificate cert) throws Exception {
    cert.checkValidity();//from www.  j  a v a 2 s.  c  o  m
    String signature = getSignature(key);
    document.setSello(signature);
    byte[] bytes = cert.getEncoded();
    Base64 b64 = new Base64(-1);
    String certStr = b64.encodeToString(bytes);
    document.setCertificado(certStr);
    BigInteger bi = cert.getSerialNumber();
    document.setNoCertificado(new String(bi.toByteArray()));
}

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From source file:org.cloudfoundry.identity.uaa.oauth.jwk.RsaJsonWebKeyTests.java

@Test
public void create_key_from_pem_string() {
    Base64 base64 = new Base64(true);
    KeyInfo keyInfo = new KeyInfo();
    keyInfo.setKeyId("id");
    keyInfo.setSigningKey(sampleRsaPrivateKey);
    assertEquals("RSA", keyInfo.getType());
    assertNotNull(keyInfo.getVerifier());
    PublicKey pk = keyInfo.getRsaPublicKey();
    JsonWebKey key = JsonWebKeyHelper.fromPEMPrivateKey(keyInfo.getVerifierKey()).setKid("id");
    assertEquals(RSA, key.getKty());/* ww w.j  av  a2 s . com*/
    assertEquals("RSA", key.getKeyProperties().get("kty"));
    assertEquals("id", key.getKid());
    assertEquals(sig, key.getUse());
    assertEquals("sig", key.getKeyProperties().get("use"));
    assertNotNull(key.getValue());
    BigInteger exponent = ((RSAPublicKey) pk).getPublicExponent();
    BigInteger modulus = ((RSAPublicKey) pk).getModulus();
    assertEquals(base64.encodeAsString(exponent.toByteArray()), key.getKeyProperties().get("e"));
    assertEquals(base64.encodeAsString(modulus.toByteArray()), key.getKeyProperties().get("n"));
}

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From source file:org.cloudfoundry.identity.uaa.oauth.jwk.RsaJsonWebKeyTests.java

@Test
public void create_key_from_public_pem_string() {
    Base64 base64 = new Base64(true);
    KeyInfo keyInfo = new KeyInfo();
    keyInfo.setKeyId("id");
    keyInfo.setSigningKey(sampleRsaPrivateKey);
    assertEquals("RSA", keyInfo.getType());
    assertNotNull(keyInfo.getVerifier());
    PublicKey pk = keyInfo.getRsaPublicKey();
    JsonWebKey key = JsonWebKeyHelper.fromPEMPublicKey(KeyInfo.pemEncodePublicKey(pk)).setKid("id");
    assertEquals(RSA, key.getKty());// www. j  a  v a  2s.  c  om
    assertEquals("RSA", key.getKeyProperties().get("kty"));
    assertEquals("id", key.getKid());
    assertEquals(sig, key.getUse());
    assertEquals("sig", key.getKeyProperties().get("use"));
    assertNotNull(key.getValue());
    BigInteger exponent = ((RSAPublicKey) pk).getPublicExponent();
    BigInteger modulus = ((RSAPublicKey) pk).getModulus();
    assertEquals(base64.encodeAsString(exponent.toByteArray()), key.getKeyProperties().get("e"));
    assertEquals(base64.encodeAsString(modulus.toByteArray()), key.getKeyProperties().get("n"));
}

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From source file:uk.ac.cam.cl.dtg.segue.auth.SegueLocalAuthenticator.java

/**
 * Hash the password using the preconfigured hashing function.
 *
 * @param password/*  ww w  .j  a  v  a2 s . com*/
 *            - password to hash
 * @param salt
 *            - random string to use as a salt.
 * @return the Base64 encoded hashed password
 * @throws NoSuchAlgorithmException
 *             - if the configured algorithm is not valid.
 * @throws InvalidKeySpecException
 *             - if the preconfigured key spec is invalid.
 */
private String hashPassword(final String password, final String salt)
        throws NoSuchAlgorithmException, InvalidKeySpecException {
    BigInteger hashedPassword = new BigInteger(computeHash(password, salt, KEY_LENGTH));

    return new String(Base64.encodeBase64(hashedPassword.toByteArray()));
}

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From source file:com.uit.anonymousidentity.Repository.Nonces.NonceJDBCTemplate.java

@Override
public Nonce find(BigInteger i) throws SQLException {
    String sql = "select * from " + TABLE_NAME + " where " + VALUE + " = ?";
    PreparedStatement pst = dataSource.getConnection().prepareStatement(sql);
    Nonce n = new Nonce();
    pst.setBytes(1, i.toByteArray());
    ResultSet rs = pst.executeQuery();
    if (rs.next()) {
        n.setIssuerSid(rs.getString(SID));
        n.setByteArray(rs.getBytes(VALUE));
        n.setId(rs.getInt(ID));//w  ww .  ja v a2  s. co  m
        return n;
    } else
        return null;
}

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From source file:com.archivas.clienttools.arcutils.utils.net.SSLCertChain.java

public String getSerialNumberString() {
    X509Certificate cert = getCertificateList().get(0);
    BigInteger sn = cert.getSerialNumber();
    return byteArrayToColonSeparatedHexString(sn.toByteArray(), ":");
}

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From source file:uk.org.ukfederation.mda.validate.X509RSAOpenSSLBlacklistValidator.java

/**
 * Computes the OpenSSL digest value for the given modulus.
 * // ww  w  .  j a va2  s .co  m
 * @param modulus RSA public modulus to be digested
 * @return value to be compared against the blacklist
 * @throws StageProcessingException if SHA1 digester can not be acquired, or for internal
 *      errors related to {@link ByteArrayOutputStream}
 */
@Nonnull
private String openSSLDigest(@Nonnull final BigInteger modulus) throws StageProcessingException {
    try {
        // Acquire a representation of the modulus
        byte[] modulusBytes = modulus.toByteArray();
        if (modulusBytes[0] == 0) {
            // drop first 00 byte of modulus representation
            modulusBytes = Arrays.copyOfRange(modulusBytes, 1, modulusBytes.length);
        }

        // Encode the modulus into upper-case hex characters
        final char[] encodedModulus = Hex.encodeHex(modulusBytes, false);

        // Now construct the thing we want to hash
        ByteArrayOutputStream bb = new ByteArrayOutputStream();
        try {
            bb.write(openSSLprefix);
            for (char c : encodedModulus) {
                bb.write((byte) c);
            }
            bb.write('\n');
        } catch (IOException e) {
            throw new StageProcessingException("internal error writing to ByteArrayStream", e);
        }
        //System.out.println("To be digested: " + bb.toString());

        // Make the digest
        final MessageDigest digest = MessageDigest.getInstance("SHA1");
        digest.update(bb.toByteArray());
        final byte[] bytes = digest.digest();

        // Convert the digest to a lower-case hex string
        char[] encodedDigest = Hex.encodeHex(bytes, true);
        final String strValue = String.valueOf(encodedDigest);
        final String trimmed = strValue.substring(20);
        //System.out.println("Digest: " + strValue + " trimmed " + trimmed);
        return trimmed;
    } catch (NoSuchAlgorithmException e) {
        throw new StageProcessingException("could not create message digester", e);
    }
}

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From source file:com.dulion.astatium.mesh.shredder.ContextManager.java

private void logTree() {
    String space = Strings.repeat("  ", 40);

    Context[] array = new Context[contextMap.size()];
    contextMap.values().toArray(array);//from w  w  w  .  j a va  2 s  .  c  o  m
    sort(array, Context.byContext());

    int maxSize = 0;
    for (Context context : array) {
        Location location = context.getRange().getLower();
        BigInteger numerator = ((RationalLocation) location).getNumerator();

        String num = Base64.getEncoder().encodeToString(numerator.toByteArray());
        int numSize = numerator.bitLength() / 8 + 1;
        if (numSize > maxSize) {
            maxSize = numSize;
        }

        BigInteger denominator = ((RationalLocation) location).getDenominator();
        String den = Base64.getEncoder().encodeToString(denominator.toByteArray());
        int denSize = denominator.bitLength() / 8 + 1;
        if (denSize > maxSize) {
            maxSize = denSize;
        }

        int depth = context.getDepth() - 1;
        String indent = space.substring(0, depth << 1);
        LOG.info(String.format("[%15s|%15s]%s", num, den, indent + context.getName()));
    }

    LOG.info("Max byte size: {}", maxSize);
}

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From source file:Main.java

public static byte[] decodeBase58(String input) {
    if (input == null) {
        return null;
    }/*from w w w. ja v a 2  s  .c om*/
    input = input.trim();
    if (input.length() == 0) {
        return new byte[0];
    }
    BigInteger resultNum = BigInteger.ZERO;
    int nLeadingZeros = 0;
    while (nLeadingZeros < input.length() && input.charAt(nLeadingZeros) == BASE58[0]) {
        nLeadingZeros++;
    }
    long acc = 0;
    int nDigits = 0;
    int p = nLeadingZeros;
    while (p < input.length()) {
        int v = BASE58_VALUES[input.charAt(p) & 0xff];
        if (v >= 0) {
            acc *= 58;
            acc += v;
            nDigits++;
            if (nDigits == BASE58_CHUNK_DIGITS) {
                resultNum = resultNum.multiply(BASE58_CHUNK_MOD).add(BigInteger.valueOf(acc));
                acc = 0;
                nDigits = 0;
            }
            p++;
        } else {
            break;
        }
    }
    if (nDigits > 0) {
        long mul = 58;
        while (--nDigits > 0) {
            mul *= 58;
        }
        resultNum = resultNum.multiply(BigInteger.valueOf(mul)).add(BigInteger.valueOf(acc));
    }
    final int BASE58_SPACE = -2;
    while (p < input.length() && BASE58_VALUES[input.charAt(p) & 0xff] == BASE58_SPACE) {
        p++;
    }
    if (p < input.length()) {
        return null;
    }
    byte[] plainNumber = resultNum.toByteArray();
    int plainNumbersOffs = plainNumber[0] == 0 ? 1 : 0;
    byte[] result = new byte[nLeadingZeros + plainNumber.length - plainNumbersOffs];
    System.arraycopy(plainNumber, plainNumbersOffs, result, nLeadingZeros,
            plainNumber.length - plainNumbersOffs);
    return result;
}

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