Examples with RSAPublicKey java.security.interfaces.RSAPublicKey used on opensource projects

Example 16 with RSAPublicKey

use of java.security.interfaces.RSAPublicKey in project wycheproof by google.

the class RsaSignatureTest method testBasic.

public void testBasic() throws Exception {
    String algorithm = "SHA256WithRSA";
    String hashAlgorithm = "SHA-256";
    String message = "Hello";
    int keysize = 2048;
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
    keyGen.initialize(keysize);
    KeyPair keyPair = keyGen.generateKeyPair();
    RSAPublicKey pub = (RSAPublicKey) keyPair.getPublic();
    RSAPrivateKey priv = (RSAPrivateKey) keyPair.getPrivate();
    byte[] messageBytes = message.getBytes("UTF-8");
    Signature signer = Signature.getInstance(algorithm);
    Signature verifier = Signature.getInstance(algorithm);
    signer.initSign(priv);
    signer.update(messageBytes);
    byte[] signature = signer.sign();
    verifier.initVerify(pub);
    verifier.update(messageBytes);
    assertTrue(verifier.verify(signature));
    // Extract some parameters.
    byte[] rawHash = MessageDigest.getInstance(hashAlgorithm).digest(messageBytes);
    // Print keys and signature, so that it can be used to generate new test vectors.
    System.out.println("Message:" + message);
    System.out.println("Hash:" + TestUtil.bytesToHex(rawHash));
    System.out.println("Public key:");
    System.out.println("Modulus:" + pub.getModulus().toString());
    System.out.println("E:" + pub.getPublicExponent().toString());
    System.out.println("encoded:" + TestUtil.bytesToHex(pub.getEncoded()));
    System.out.println("Private key:");
    System.out.println("D:" + priv.getPrivateExponent().toString());
    System.out.println("encoded:" + TestUtil.bytesToHex(priv.getEncoded()));
    System.out.println("Signature:" + TestUtil.bytesToHex(signature));
}

Example 17 with RSAPublicKey

use of java.security.interfaces.RSAPublicKey in project XobotOS by xamarin.

the class ServerHandshakeImpl method processClientHello.

/**
     *
     * Processes Client Hello message.
     * Server responds to client hello message with server hello
     * and (if necessary) server certificate, server key exchange,
     * certificate request, and server hello done messages.
     */
void processClientHello() {
    CipherSuite cipher_suite;
    // check that clientHello contains CompressionMethod.null
    checkCompression: {
        for (int i = 0; i < clientHello.compression_methods.length; i++) {
            if (clientHello.compression_methods[i] == 0) {
                break checkCompression;
            }
        }
        fatalAlert(AlertProtocol.HANDSHAKE_FAILURE, "HANDSHAKE FAILURE. Incorrect client hello message");
    }
    if (!ProtocolVersion.isSupported(clientHello.client_version)) {
        fatalAlert(AlertProtocol.PROTOCOL_VERSION, "PROTOCOL VERSION. Unsupported client version " + clientHello.client_version[0] + clientHello.client_version[1]);
    }
    isResuming = false;
    FIND: if (clientHello.session_id.length != 0) {
        // client wishes to reuse session
        SSLSessionImpl sessionToResume;
        boolean reuseCurrent = false;
        // reuse current session
        if (session != null && Arrays.equals(session.id, clientHello.session_id)) {
            if (session.isValid()) {
                isResuming = true;
                break FIND;
            }
            reuseCurrent = true;
        }
        // find session in cash
        sessionToResume = findSessionToResume(clientHello.session_id);
        if (sessionToResume == null || !sessionToResume.isValid()) {
            if (!parameters.getEnableSessionCreation()) {
                if (reuseCurrent) {
                    // we can continue current session
                    sendWarningAlert(AlertProtocol.NO_RENEGOTIATION);
                    status = NOT_HANDSHAKING;
                    clearMessages();
                    return;
                }
                // throw AlertException
                fatalAlert(AlertProtocol.HANDSHAKE_FAILURE, "SSL Session may not be created");
            }
            session = null;
        } else {
            session = (SSLSessionImpl) sessionToResume.clone();
            isResuming = true;
        }
    }
    if (isResuming) {
        cipher_suite = session.cipherSuite;
        // clientHello.cipher_suites must include at least cipher_suite from the session
        checkCipherSuite: {
            for (int i = 0; i < clientHello.cipher_suites.length; i++) {
                if (cipher_suite.equals(clientHello.cipher_suites[i])) {
                    break checkCipherSuite;
                }
            }
            fatalAlert(AlertProtocol.HANDSHAKE_FAILURE, "HANDSHAKE FAILURE. Incorrect client hello message");
        }
    } else {
        cipher_suite = selectSuite(clientHello.cipher_suites);
        if (cipher_suite == null) {
            fatalAlert(AlertProtocol.HANDSHAKE_FAILURE, "HANDSHAKE FAILURE. NO COMMON SUITE");
        }
        if (!parameters.getEnableSessionCreation()) {
            fatalAlert(AlertProtocol.HANDSHAKE_FAILURE, "SSL Session may not be created");
        }
        session = new SSLSessionImpl(cipher_suite, parameters.getSecureRandom());
        if (engineOwner != null) {
            session.setPeer(engineOwner.getPeerHost(), engineOwner.getPeerPort());
        } else {
            session.setPeer(socketOwner.getInetAddress().getHostName(), socketOwner.getPort());
        }
    }
    recordProtocol.setVersion(clientHello.client_version);
    session.protocol = ProtocolVersion.getByVersion(clientHello.client_version);
    session.clientRandom = clientHello.random;
    // create server hello message
    serverHello = new ServerHello(parameters.getSecureRandom(), clientHello.client_version, session.getId(), cipher_suite, //CompressionMethod.null
    (byte) 0);
    session.serverRandom = serverHello.random;
    send(serverHello);
    if (isResuming) {
        sendChangeCipherSpec();
        return;
    }
    //    create and send server certificate message if needed
    if (!cipher_suite.isAnonymous()) {
        // need to send server certificate
        X509Certificate[] certs = null;
        String certType = cipher_suite.getServerKeyType();
        if (certType == null) {
            fatalAlert(AlertProtocol.HANDSHAKE_FAILURE, "NO CERT TYPE FOR " + cipher_suite.getName());
        }
        // obtain certificates from key manager
        String alias = null;
        X509KeyManager km = parameters.getKeyManager();
        if (km instanceof X509ExtendedKeyManager) {
            X509ExtendedKeyManager ekm = (X509ExtendedKeyManager) km;
            if (this.socketOwner != null) {
                alias = ekm.chooseServerAlias(certType, null, this.socketOwner);
            } else {
                alias = ekm.chooseEngineServerAlias(certType, null, this.engineOwner);
            }
            if (alias != null) {
                certs = ekm.getCertificateChain(alias);
            }
        } else {
            alias = km.chooseServerAlias(certType, null, this.socketOwner);
            if (alias != null) {
                certs = km.getCertificateChain(alias);
            }
        }
        if (certs == null) {
            fatalAlert(AlertProtocol.HANDSHAKE_FAILURE, "NO SERVER CERTIFICATE FOUND");
            return;
        }
        session.localCertificates = certs;
        serverCert = new CertificateMessage(certs);
        privKey = km.getPrivateKey(alias);
        send(serverCert);
    }
    // create and send server key exchange message if needed
    RSAPublicKey rsakey = null;
    DHPublicKeySpec dhkeySpec = null;
    byte[] hash = null;
    BigInteger p = null;
    BigInteger g = null;
    KeyPairGenerator kpg = null;
    try {
        if (cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_RSA_EXPORT) {
            PublicKey pk = serverCert.certs[0].getPublicKey();
            if (getRSAKeyLength(pk) > 512) {
                // key is longer than 512 bits
                kpg = KeyPairGenerator.getInstance("RSA");
                kpg.initialize(512);
            }
        } else if (cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_DHE_DSS || cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_DHE_DSS_EXPORT || cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_DHE_RSA || cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_DHE_RSA_EXPORT || cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_DH_anon || cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_DH_anon_EXPORT) {
            kpg = KeyPairGenerator.getInstance("DH");
            p = new BigInteger(1, DHParameters.getPrime());
            g = new BigInteger("2");
            DHParameterSpec spec = new DHParameterSpec(p, g);
            kpg.initialize(spec);
        }
    } catch (Exception e) {
        fatalAlert(AlertProtocol.INTERNAL_ERROR, "INTERNAL ERROR", e);
    }
    if (kpg != null) {
        // need to send server key exchange message
        DigitalSignature ds = new DigitalSignature(cipher_suite.authType);
        KeyPair kp = null;
        try {
            kp = kpg.genKeyPair();
            if (cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_RSA_EXPORT) {
                rsakey = (RSAPublicKey) kp.getPublic();
            } else {
                DHPublicKey dhkey = (DHPublicKey) kp.getPublic();
                KeyFactory kf = KeyFactory.getInstance("DH");
                dhkeySpec = kf.getKeySpec(dhkey, DHPublicKeySpec.class);
            }
            if (!cipher_suite.isAnonymous()) {
                // calculate signed_params
                // init by private key which correspond to
                // server certificate
                ds.init(privKey);
                // use emphemeral key for key exchange
                privKey = kp.getPrivate();
                ds.update(clientHello.getRandom());
                ds.update(serverHello.getRandom());
                byte[] tmp;
                byte[] tmpLength = new byte[2];
                //FIXME 1_byte==0x00
                if (cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_RSA_EXPORT) {
                    tmp = ServerKeyExchange.toUnsignedByteArray(rsakey.getModulus());
                    tmpLength[0] = (byte) ((tmp.length & 0xFF00) >>> 8);
                    tmpLength[1] = (byte) (tmp.length & 0xFF);
                    ds.update(tmpLength);
                    ds.update(tmp);
                    tmp = ServerKeyExchange.toUnsignedByteArray(rsakey.getPublicExponent());
                    tmpLength[0] = (byte) ((tmp.length & 0xFF00) >>> 8);
                    tmpLength[1] = (byte) (tmp.length & 0xFF);
                    ds.update(tmpLength);
                    ds.update(tmp);
                } else {
                    tmp = ServerKeyExchange.toUnsignedByteArray(dhkeySpec.getP());
                    tmpLength[0] = (byte) ((tmp.length & 0xFF00) >>> 8);
                    tmpLength[1] = (byte) (tmp.length & 0xFF);
                    ds.update(tmpLength);
                    ds.update(tmp);
                    tmp = ServerKeyExchange.toUnsignedByteArray(dhkeySpec.getG());
                    tmpLength[0] = (byte) ((tmp.length & 0xFF00) >>> 8);
                    tmpLength[1] = (byte) (tmp.length & 0xFF);
                    ds.update(tmpLength);
                    ds.update(tmp);
                    tmp = ServerKeyExchange.toUnsignedByteArray(dhkeySpec.getY());
                    tmpLength[0] = (byte) ((tmp.length & 0xFF00) >>> 8);
                    tmpLength[1] = (byte) (tmp.length & 0xFF);
                    ds.update(tmpLength);
                    ds.update(tmp);
                }
                hash = ds.sign();
            } else {
                // use emphemeral key for key exchange
                privKey = kp.getPrivate();
            }
        } catch (Exception e) {
            fatalAlert(AlertProtocol.INTERNAL_ERROR, "INTERNAL ERROR", e);
        }
        if (cipher_suite.keyExchange == CipherSuite.KEY_EXCHANGE_RSA_EXPORT) {
            serverKeyExchange = new ServerKeyExchange(rsakey.getModulus(), rsakey.getPublicExponent(), null, hash);
        } else {
            serverKeyExchange = new ServerKeyExchange(p, g, dhkeySpec.getY(), hash);
        }
        send(serverKeyExchange);
    }
    // CERTIFICATE_REQUEST
    certRequest: if (parameters.getWantClientAuth() || parameters.getNeedClientAuth()) {
        X509Certificate[] accepted;
        try {
            X509TrustManager tm = parameters.getTrustManager();
            accepted = tm.getAcceptedIssuers();
        } catch (ClassCastException e) {
            // don't send certificateRequest
            break certRequest;
        }
        byte[] requestedClientCertTypes = { CipherSuite.TLS_CT_RSA_SIGN, CipherSuite.TLS_CT_DSS_SIGN };
        certificateRequest = new CertificateRequest(requestedClientCertTypes, accepted);
        send(certificateRequest);
    }
    // SERVER_HELLO_DONE
    serverHelloDone = new ServerHelloDone();
    send(serverHelloDone);
    status = NEED_UNWRAP;
}

Example 18 with RSAPublicKey

use of java.security.interfaces.RSAPublicKey in project android_frameworks_base by DirtyUnicorns.

the class AndroidKeyPairGeneratorTest method assertKeyPairCorrect.

private void assertKeyPairCorrect(KeyPair pair, String alias, String keyType, int keySize, AlgorithmParameterSpec spec, X500Principal dn, BigInteger serial, Date start, Date end) throws Exception {
    final PublicKey pubKey = pair.getPublic();
    assertNotNull("The PublicKey for the KeyPair should be not null", pubKey);
    assertEquals(keyType, pubKey.getAlgorithm());
    if ("EC".equalsIgnoreCase(keyType)) {
        assertEquals("Curve should be what was specified during initialization", keySize, ((ECPublicKey) pubKey).getParams().getCurve().getField().getFieldSize());
    } else if ("RSA".equalsIgnoreCase(keyType)) {
        RSAPublicKey rsaPubKey = (RSAPublicKey) pubKey;
        assertEquals("Modulus size should be what is specified during initialization", (keySize + 7) & ~7, (rsaPubKey.getModulus().bitLength() + 7) & ~7);
        if (spec != null) {
            RSAKeyGenParameterSpec params = (RSAKeyGenParameterSpec) spec;
            assertEquals((keySize + 7) & ~7, (params.getKeysize() + 7) & ~7);
            assertEquals(params.getPublicExponent(), rsaPubKey.getPublicExponent());
        }
    }
    final PrivateKey privKey = pair.getPrivate();
    assertNotNull("The PrivateKey for the KeyPair should be not null", privKey);
    assertEquals(keyType, privKey.getAlgorithm());
    if ("EC".equalsIgnoreCase(keyType)) {
        assertTrue("EC private key must be instanceof ECKey: " + privKey.getClass().getName(), privKey instanceof ECKey);
        assertEquals("Private and public key must have the same EC parameters", ((ECKey) pubKey).getParams(), ((ECKey) privKey).getParams());
    } else if ("RSA".equalsIgnoreCase(keyType)) {
        assertTrue("RSA private key must be instance of RSAKey: " + privKey.getClass().getName(), privKey instanceof RSAKey);
        assertEquals("Private and public key must have the same RSA modulus", ((RSAKey) pubKey).getModulus(), ((RSAKey) privKey).getModulus());
    }
    final byte[] userCertBytes = mAndroidKeyStore.get(Credentials.USER_CERTIFICATE + alias);
    assertNotNull("The user certificate should exist for the generated entry", userCertBytes);
    final CertificateFactory cf = CertificateFactory.getInstance("X.509");
    final Certificate userCert = cf.generateCertificate(new ByteArrayInputStream(userCertBytes));
    assertTrue("Certificate should be in X.509 format", userCert instanceof X509Certificate);
    final X509Certificate x509userCert = (X509Certificate) userCert;
    assertEquals("Public key used to sign certificate should have the same algorithm as in KeyPair", pubKey.getAlgorithm(), x509userCert.getPublicKey().getAlgorithm());
    assertEquals("PublicKey used to sign certificate should match one returned in KeyPair", pubKey, AndroidKeyStoreProvider.getAndroidKeyStorePublicKey(Credentials.USER_PRIVATE_KEY + alias, KeyStore.UID_SELF, x509userCert.getPublicKey().getAlgorithm(), x509userCert.getPublicKey().getEncoded()));
    assertEquals("The Subject DN should be the one passed into the params", dn, x509userCert.getSubjectDN());
    assertEquals("The Issuer DN should be the same as the Subject DN", dn, x509userCert.getIssuerDN());
    assertEquals("The Serial should be the one passed into the params", serial, x509userCert.getSerialNumber());
    assertDateEquals("The notBefore date should be the one passed into the params", start, x509userCert.getNotBefore());
    assertDateEquals("The notAfter date should be the one passed into the params", end, x509userCert.getNotAfter());
    // Assert that the cert's signature verifies using the public key from generated KeyPair
    x509userCert.verify(pubKey);
    // Assert that the cert's signature verifies using the public key from the cert itself.
    x509userCert.verify(x509userCert.getPublicKey());
    final byte[] caCerts = mAndroidKeyStore.get(Credentials.CA_CERTIFICATE + alias);
    assertNull("A list of CA certificates should not exist for the generated entry", caCerts);
    ExportResult exportResult = mAndroidKeyStore.exportKey(Credentials.USER_PRIVATE_KEY + alias, KeymasterDefs.KM_KEY_FORMAT_X509, null, null);
    assertEquals(KeyStore.NO_ERROR, exportResult.resultCode);
    final byte[] pubKeyBytes = exportResult.exportData;
    assertNotNull("The keystore should return the public key for the generated key", pubKeyBytes);
    assertTrue("Public key X.509 format should be as expected", Arrays.equals(pubKey.getEncoded(), pubKeyBytes));
}

Example 19 with RSAPublicKey

use of java.security.interfaces.RSAPublicKey in project jdk8u_jdk by JetBrains.

the class NewSize7 method main.

public static void main(String[] args) throws Exception {
    String FILE = "newsize7-ks";
    new File(FILE).delete();
    sun.security.tools.keytool.Main.main(("-debug -genkeypair -keystore " + FILE + " -alias a -dname cn=c -storepass changeit" + " -keypass changeit -keyalg rsa").split(" "));
    KeyStore ks = KeyStore.getInstance("JKS");
    try (FileInputStream fin = new FileInputStream(FILE)) {
        ks.load(fin, null);
    }
    Files.delete(Paths.get(FILE));
    RSAPublicKey r = (RSAPublicKey) ks.getCertificate("a").getPublicKey();
    if (r.getModulus().bitLength() != 2048) {
        throw new Exception("Bad keysize");
    }
    X509Certificate x = (X509Certificate) ks.getCertificate("a");
    if (!x.getSigAlgName().equals("SHA256withRSA")) {
        throw new Exception("Bad sigalg");
    }
}

Example 20 with RSAPublicKey

use of java.security.interfaces.RSAPublicKey in project jdk8u_jdk by JetBrains.

the class SpecTest method specTest.

/**
     *
     * @param kpair test key pair
     * @param pubExponent expected public exponent.
     * @return true if test passed. false if test failed.
     */
private static boolean specTest(KeyPair kpair, BigInteger pubExponent) {
    boolean passed = true;
    RSAPrivateKey priv = (RSAPrivateKey) kpair.getPrivate();
    RSAPublicKey pub = (RSAPublicKey) kpair.getPublic();
    // test the getModulus method
    if ((priv instanceof RSAKey) && (pub instanceof RSAKey)) {
        if (!priv.getModulus().equals(pub.getModulus())) {
            System.err.println("priv.getModulus() = " + priv.getModulus());
            System.err.println("pub.getModulus() = " + pub.getModulus());
            passed = false;
        }
        if (!pubExponent.equals(pub.getPublicExponent())) {
            System.err.println("pubExponent = " + pubExponent);
            System.err.println("pub.getPublicExponent() = " + pub.getPublicExponent());
            passed = false;
        }
    }
    return passed;
}