Example usage for java.security.interfaces RSAPublicKey getModulus

Introduction

In this page you can find the example usage for java.security.interfaces RSAPublicKey getModulus.

Prototype

public BigInteger getModulus();

Source Link

Document

Returns the modulus.

Usage

From source file:com.microsoft.azure.management.TestContainerService.java

private String getSshKey() throws Exception {
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
    keyPairGenerator.initialize(2048);//  w  ww  .j av a  2 s.  c om
    KeyPair keyPair = keyPairGenerator.generateKeyPair();
    RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
    ByteArrayOutputStream byteOs = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(byteOs);
    dos.writeInt("ssh-rsa".getBytes().length);
    dos.write("ssh-rsa".getBytes());
    dos.writeInt(publicKey.getPublicExponent().toByteArray().length);
    dos.write(publicKey.getPublicExponent().toByteArray());
    dos.writeInt(publicKey.getModulus().toByteArray().length);
    dos.write(publicKey.getModulus().toByteArray());
    String publicKeyEncoded = new String(Base64.encodeBase64(byteOs.toByteArray()));
    return "ssh-rsa " + publicKeyEncoded + " ";
}

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From source file:org.openbaton.nfvo.core.api.KeyManagement.java

private String encodePublicKey(PublicKey publicKey, String user) throws IOException {
    String publicKeyEncoded;//  w  ww . j  a va  2s . c om
    RSAPublicKey rsaPublicKey = (RSAPublicKey) publicKey;
    ByteArrayOutputStream byteOs = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(byteOs);
    dos.writeInt("ssh-rsa".getBytes().length);
    dos.write("ssh-rsa".getBytes());
    dos.writeInt(rsaPublicKey.getPublicExponent().toByteArray().length);
    dos.write(rsaPublicKey.getPublicExponent().toByteArray());
    dos.writeInt(rsaPublicKey.getModulus().toByteArray().length);
    dos.write(rsaPublicKey.getModulus().toByteArray());
    publicKeyEncoded = new String(encodeBase64(byteOs.toByteArray()));
    return "ssh-rsa " + publicKeyEncoded + " " + user;
}

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From source file:com.thoughtworks.go.server.util.HttpTestUtil.java

private KeyPair generateKeyPair() {
    try {/*  www.  ja v a2  s.c o  m*/
        KeyPair seed = KeyPairGenerator.getInstance("RSA", "BC").generateKeyPair();
        RSAPrivateKey privateSeed = (RSAPrivateKey) seed.getPrivate();
        RSAPublicKey publicSeed = (RSAPublicKey) seed.getPublic();
        KeyFactory fact = KeyFactory.getInstance("RSA", "BC");
        RSAPrivateKeySpec privateKeySpec = new RSAPrivateKeySpec(privateSeed.getModulus(),
                privateSeed.getPrivateExponent());
        RSAPublicKeySpec publicKeySpec = new RSAPublicKeySpec(publicSeed.getModulus(),
                publicSeed.getPublicExponent());
        return new KeyPair(fact.generatePublic(publicKeySpec), fact.generatePrivate(privateKeySpec));
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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From source file:com.kuzumeji.platform.standard.SecurityService.java

/**
 * RSA???/*from  w  ww  . ja  v a 2 s .  c  om*/
 * <dl>
 * <dt>?
 * <dd>RSA????
 * </dl>
 * @param key RSA?
 * @return RSA?
 */
public File savePublicKeyFile(final RSAPublicKey key) {
    try {
        final File file = File.createTempFile("public", ".key");
        try (FileOutputStream fos = new FileOutputStream(file);
                DataOutputStream dos = new DataOutputStream(fos)) {
            final byte[] modulus = key.getModulus().toByteArray();
            dos.writeInt(modulus.length);
            dos.write(modulus);
            final byte[] publicExponent = key.getPublicExponent().toByteArray();
            dos.writeInt(publicExponent.length);
            dos.write(publicExponent);
        }
        return file;
    } catch (final IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:test.integ.be.fedict.trust.Foreigner201305Test.java

@Test
public void testForeigner201305() throws Exception {
    CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
    X509Certificate rootCert = (X509Certificate) certificateFactory
            .generateCertificate(Foreigner201305Test.class.getResourceAsStream("/belgiumrca2.crt"));
    X509Certificate foreigner201304Cert = (X509Certificate) certificateFactory
            .generateCertificate(Foreigner201305Test.class.getResourceAsStream("/foreigner201304.crt"));

    foreigner201304Cert.verify(rootCert.getPublicKey());

    X509Certificate foreigner201305Cert = (X509Certificate) certificateFactory
            .generateCertificate(Foreigner201305Test.class.getResourceAsStream("/foreigner201305.crt"));

    foreigner201305Cert.verify(rootCert.getPublicKey());

    byte[] foreigner201304SignatureValue = foreigner201304Cert.getSignature();
    byte[] foreigner201305SignatureValue = foreigner201305Cert.getSignature();
    LOG.debug("201304 signature size: " + foreigner201304SignatureValue.length);
    LOG.debug("201305 signature size: " + foreigner201305SignatureValue.length);

    RSAPublicKey rootPublicKey = (RSAPublicKey) rootCert.getPublicKey();

    BigInteger foreigner201304Signature = new BigInteger(foreigner201304SignatureValue);
    BigInteger foreigner201305Signature = new BigInteger(foreigner201305SignatureValue);

    LOG.debug("201305 signature size: " + foreigner201305Signature.toByteArray().length);

    BigInteger foreigner201304PaddedMessage = foreigner201304Signature.modPow(rootPublicKey.getPublicExponent(),
            rootPublicKey.getModulus());
    BigInteger foreigner201305PaddedMessage = foreigner201305Signature.modPow(rootPublicKey.getPublicExponent(),
            rootPublicKey.getModulus());

    LOG.debug(/*from w  ww  .  j  ava  2s  . c om*/
            "201304 padded message: " + new String(Hex.encodeHex(foreigner201304PaddedMessage.toByteArray())));
    LOG.debug(
            "201305 padded message: " + new String(Hex.encodeHex(foreigner201305PaddedMessage.toByteArray())));

    LOG.debug("201304 modulus size: "
            + ((RSAPublicKey) foreigner201304Cert.getPublicKey()).getModulus().toByteArray().length);
    LOG.debug("201305 modulus size: "
            + ((RSAPublicKey) foreigner201305Cert.getPublicKey()).getModulus().toByteArray().length);
    LOG.debug("201304 modulus: " + new String(
            Hex.encodeHex(((RSAPublicKey) foreigner201304Cert.getPublicKey()).getModulus().toByteArray())));
    LOG.debug("201305 modulus: " + new String(
            Hex.encodeHex(((RSAPublicKey) foreigner201305Cert.getPublicKey()).getModulus().toByteArray())));
}

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From source file:com.xinferin.licensing.LicenceGenerator.java

/**
 * Gets an RSA Public key as an xml document
 * /*from w w  w .  java 2s  .  c  om*/
 * @param key
 * @return
 * @throws ParserConfigurationException
 * @throws UnsupportedEncodingException
 */
private Document getRSAPublicKeyAsXML(RSAPublicKey key)
        throws ParserConfigurationException, UnsupportedEncodingException {

    Document result = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
    Element rsaKeyValue = result.createElement("RSAKeyValue");
    result.appendChild(rsaKeyValue);

    Element modulus = result.createElement("Modulus");
    rsaKeyValue.appendChild(modulus);

    byte[] modulusBytes = key.getModulus().toByteArray();
    modulusBytes = stripLeadingZeros(modulusBytes);
    modulus.appendChild(result.createTextNode(new String(Base64.encodeBase64(modulusBytes))));

    Element exponent = result.createElement("Exponent");
    rsaKeyValue.appendChild(exponent);

    byte[] exponentBytes = key.getPublicExponent().toByteArray();
    exponent.appendChild(result.createTextNode(new String(Base64.encodeBase64(exponentBytes))));

    return result;
}

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From source file:org.openbaton.nfvo.core.api.KeyManagement.java

private String encodePublicKey(RSAPublicKey key, String keyname) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    /* encode the "ssh-rsa" string */
    byte[] sshrsa = new byte[] { 0, 0, 0, 7, 's', 's', 'h', '-', 'r', 's', 'a' };
    out.write(sshrsa);/*from w  ww .j a v  a 2  s .co m*/
    /* Encode the public exponent */
    BigInteger e = key.getPublicExponent();
    byte[] data = e.toByteArray();
    encodeUInt32(data.length, out);
    out.write(data);
    /* Encode the modulus */
    BigInteger m = key.getModulus();
    data = m.toByteArray();
    encodeUInt32(data.length, out);
    out.write(data);
    return "ssh-rsa " + Base64.encodeBase64String(out.toByteArray()) + " " + keyname;
}

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From source file:net.sf.keystore_explorer.crypto.csr.spkac.Spkac.java

private byte[] encodeRsaPublicKeyAsBitString(RSAPublicKey rsaPublicKey) throws SpkacException {
    try {/*from   w w w  . j av a  2  s  .  c  om*/
        ASN1EncodableVector vec = new ASN1EncodableVector();
        vec.add(new ASN1Integer(rsaPublicKey.getModulus()));
        vec.add(new ASN1Integer(rsaPublicKey.getPublicExponent()));
        DERSequence derSequence = new DERSequence(vec);
        return derSequence.getEncoded(ASN1Encoding.DER);
    } catch (Exception ex) {
        throw new SpkacException(res.getString("NoEncodeRsaPublicKey.exception.message"), ex);
    }
}

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From source file:org.ejbca.ui.web.pub.CertRequestHttpTest.java

/**
 * Tests request for a pkcs12/*  ww  w  .j av a 2 s.com*/
 * 
 * @throws Exception error
 */
@Test
public void test01RequestPKCS12() throws Exception {
    log.trace(">test01RequestPKCS12()");

    // find a CA (TestCA?) create a user
    // Send certificate request for a server generated PKCS12
    setupUser(SecConst.TOKEN_SOFT_P12);
    setupUserStatus(EndEntityConstants.STATUS_NEW);

    // POST the OCSP request
    URL url = new URL(httpReqPath + '/' + resourceReq);
    HttpURLConnection con = (HttpURLConnection) url.openConnection();
    // we are going to do a POST
    con.setDoOutput(true);
    con.setRequestMethod("POST");

    // POST it
    con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    OutputStream os = con.getOutputStream();
    os.write(("user=" + TEST_USERNAME + "&password=foo123&keylength=2048").getBytes("UTF-8"));
    os.close();
    assertEquals("Response code", 200, con.getResponseCode());
    // Some appserver (Weblogic) responds with
    // "application/x-pkcs12; charset=UTF-8"
    String contentType = con.getContentType();
    boolean contentTypeIsPkcs12 = contentType.startsWith("application/x-pkcs12");
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    // This works for small requests, and PKCS12 requests are small
    InputStream in = con.getInputStream();
    int b = in.read();
    while (b != -1) {
        baos.write(b);
        b = in.read();
    }
    baos.flush();
    in.close();
    byte[] respBytes = baos.toByteArray();
    assertTrue(respBytes.length > 0);
    if (!contentTypeIsPkcs12 && log.isDebugEnabled()) {
        // If the content-type isn't application/x-pkcs12 we like to know what we got back..
        log.debug(new String(respBytes));
    }
    assertTrue("contentType was " + contentType, contentTypeIsPkcs12);

    KeyStore store = KeyStore.getInstance("PKCS12", "BC");
    ByteArrayInputStream is = new ByteArrayInputStream(respBytes);
    store.load(is, "foo123".toCharArray());
    assertTrue(store.containsAlias("ReqTest"));
    X509Certificate cert = (X509Certificate) store.getCertificate("ReqTest");
    PublicKey pk = cert.getPublicKey();
    if (pk instanceof RSAPublicKey) {
        RSAPublicKey rsapk = (RSAPublicKey) pk;
        assertEquals(rsapk.getAlgorithm(), "RSA");
        assertEquals(2048, rsapk.getModulus().bitLength());
    } else {
        assertTrue("Public key is not RSA", false);
    }

    log.trace("<test01RequestPKCS12()");
}

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From source file:test.integ.be.fedict.commons.eid.client.JCATest.java

private void verifySignatureAlgorithm(final String signatureAlgorithm, final PrivateKey privateKey,
        final PublicKey publicKey) throws Exception {
    Signature signature = Signature.getInstance(signatureAlgorithm);
    signature.initSign(privateKey);//w  w w. j av  a 2 s  .  c o m
    assertTrue(signature.getProvider() instanceof BeIDProvider);

    final byte[] toBeSigned = "hello world".getBytes();
    signature.update(toBeSigned);
    final byte[] signatureValue = signature.sign();
    assertNotNull(signatureValue);

    signature.initVerify(publicKey);
    signature.update(toBeSigned);
    final boolean beIDResult = signature.verify(signatureValue);
    assertTrue(beIDResult);

    signature = Signature.getInstance(signatureAlgorithm);
    signature.initVerify(publicKey);
    signature.update(toBeSigned);
    final boolean result = signature.verify(signatureValue);
    assertTrue(result);

    RSAPublicKey rsaPublicKey = (RSAPublicKey) publicKey;
    BigInteger signatureValueBigInteger = new BigInteger(signatureValue);
    BigInteger messageBigInteger = signatureValueBigInteger.modPow(rsaPublicKey.getPublicExponent(),
            rsaPublicKey.getModulus());
    LOG.debug("Padded DigestInfo: " + new String(Hex.encodeHex(messageBigInteger.toByteArray())));
}

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