Example usage for org.bouncycastle.jce.provider BouncyCastleProvider BouncyCastleProvider

Introduction

In this page you can find the example usage for org.bouncycastle.jce.provider BouncyCastleProvider BouncyCastleProvider.

Prototype

public BouncyCastleProvider() 

Source Link

Document

Construct a new provider.

Usage

From source file:cz.muni.ics.remsig.impl.SignerImplIT.java

/**
 * Test of signPKCS7 method, of class SignerImpl.
 *//*from ww w .j a  v  a2  s .co  m*/
@Test
public void testSignPKCS7_4args() throws Exception {
    docInit();
    ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
    SignerImpl signer = new SignerImpl(configuration);
    signer.setJdbcTemplate((JdbcTemplate) ac.getBean("jdbcTemplate"));
    Security.addProvider(new BouncyCastleProvider());
    String data = "data";
    String dataToSign = "ok";
    String profile = "ceskaposta_01";
    try {
        testDocument1 = signer.signPKCS7(null, andersonDefPass, data, profile);
        testDocument2 = signer.signPKCS7(anderson, null, data, profile);
        testDocument3 = signer.signPKCS7(anderson, andersonDefPass, null, profile);
        testDocument4 = signer.signPKCS7(anderson, andersonDefPass, data, null);
        testDocument5 = signer.signPKCS7(null, null, data, profile);
        testDocument6 = signer.signPKCS7(null, andersonDefPass, null, profile);
        testDocument7 = signer.signPKCS7(null, andersonDefPass, data, null);
        testDocument8 = signer.signPKCS7(anderson, null, null, profile);
        testDocument9 = signer.signPKCS7(anderson, null, data, null);
        testDocument10 = signer.signPKCS7(anderson, andersonDefPass, null, null);
        testDocument11 = signer.signPKCS7(null, null, null, profile);
        testDocument12 = signer.signPKCS7(null, null, data, null);
        testDocument13 = signer.signPKCS7(anderson, null, null, null);
        testDocument14 = signer.signPKCS7(null, null, null, null);

    } catch (NullPointerException e) {
        fail("Uncaught NullPointerException");
    }
    Document[] testSubjects = new Document[] { testDocument1, testDocument2, testDocument3, testDocument4,
            testDocument5, testDocument6, testDocument7, testDocument8, testDocument9, testDocument10,
            testDocument11, testDocument12, testDocument13, testDocument14 };

    if (0 != testManager.chceckDocuments(testSubjects, 0, 0)) {
        fail("some documents were signed with null data");
    }

    try {
        testDocument1 = signer.signPKCS7(anderson, bobaFetDefPass, dataToSign, profile);
        testDocument2 = signer.signPKCS7(bobaFet, bobaFetDefPass, dataToSign, profile);
        testDocument3 = signer.signPKCS7(cyril, andersonDefPass, dataToSign, profile);
        testDocument4 = signer.signPKCS7(bobaFet, bobaFetDefPass, dataToSign, "unknown");

        assertNull(testManager.extractElementFromXmlDoc(testDocument1, "pkcs7"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument2, "pkcs7"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument3, "pkcs7"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument4, "pkcs7"));

    } catch (Exception e) {

    }
    try {
        testDocument1 = signer.signPKCS7(anderson, andersonDefPass, dataToSign, "cnb_01");
        testDocument2 = signer.signPKCS7(bobaFet, bobaFetDefPass, dataToSign, "ceskaposta_01");
        testDocument3 = signer.signPKCS7(anderson, cyrilDefPass, dataToSign, "cnb_01");

        String outputAnderson = testManager.extractElementFromXmlDoc(testDocument1, "pkcs7");
        String outputBobaFet = testManager.extractElementFromXmlDoc(testDocument2, "pkcs7");
        String outputCyril = testManager.extractElementFromXmlDoc(testDocument3, "pkcs7");

        assertEquals(defaultSignatureAnderson7, outputAnderson);
        assertEquals(defaultSignatureBobaFet7, outputBobaFet);
        assertEquals(defaultSignatureCyril7, outputCyril);

        assertThat(defaultSignatureAnderson7, not(outputCyril));
        assertThat(defaultSignatureAnderson7, not(outputBobaFet));
        assertThat(defaultSignatureCyril7, not(outputBobaFet));

    } catch (Exception e) {
        fail(e.getMessage());
    }

}

---

From source file:cz.muni.ics.remsig.impl.SignerImplIT.java

/**
 * Test of signPdf method, of class SignerImpl.
 *///from w w  w .  ja v  a 2 s . c o m
@Test
public void testSignPdf_4args() throws Exception {
    docInit();
    ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
    SignerImpl signer = new SignerImpl(configuration);
    signer.setJdbcTemplate((JdbcTemplate) ac.getBean("jdbcTemplate"));
    Security.addProvider(new BouncyCastleProvider());

    signer.prepareWaterMark();
    String emptyFileName = "test/testFiles/empty.pdf";
    String testDataFileName = "test/testFiles/testdata.pdf";
    byte[] emptypdf = testManager.loadFileBytes(emptyFileName);
    byte[] testData = testManager.loadFileBytes(testDataFileName);
    byte[] notPdf = testManager.loadFileBytes("test/testFiles/other.pdf");

    try {
        testDocument1 = signer.signPdf(null, andersonDefPass, emptypdf, andersonCerId);
        testDocument2 = signer.signPdf(anderson, null, emptypdf, andersonCerId);
        testDocument3 = signer.signPdf(anderson, andersonDefPass, null, andersonCerId);
        testDocument4 = signer.signPdf(null, null, emptypdf, andersonCerId);
        testDocument5 = signer.signPdf(anderson, null, null, andersonCerId);
        testDocument6 = signer.signPdf(null, null, null, andersonCerId);
    } catch (NullPointerException e) {
        fail("uncaught nullpointerexception was thrown");

    }
    Document[] testSubjects = new Document[] { testDocument1, testDocument2, testDocument3, testDocument4,
            testDocument5, testDocument6 };

    if (0 != testManager.chceckDocuments(testSubjects, 0, 0)) {
        fail("some documents were signed with null data");
    }

    try {
        testDocument1 = signer.signPdf(anderson, bobaFetDefPass, emptypdf, andersonCerId);
        testDocument2 = signer.signPdf(anderson, andersonDefPass, emptypdf, bobaFetCerId);
        testDocument3 = signer.signPdf(bobaFet, andersonDefPass, emptypdf, andersonCerId);
        testDocument4 = signer.signPdf(anderson, bobaFetDefPass, emptypdf, bobaFetCerId);
        testDocument5 = signer.signPdf(anderson, andersonDefPass, notPdf, andersonCerId);
        assertNull(testManager.extractElementFromXmlDoc(testDocument1, "signature"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument2, "signature"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument3, "signature"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument4, "signature"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument5, "signature"));
    } catch (Exception e) {
    }

    testDocument1 = signer.signPdf(anderson, andersonDefPass, testData, andersonCerId);
    String signatureA = testManager.extractElementFromXmlDoc(testDocument1, "signature");

    testDocument2 = signer.signPdf(bobaFet, bobaFetDefPass, emptypdf, bobaFetCerId);
    String signatureB = testManager.extractElementFromXmlDoc(testDocument2, "signature");

    testDocument3 = signer.signPdf(cyril, cyrilDefPass, testData, cyrilCerId);
    String signatureC = testManager.extractElementFromXmlDoc(testDocument2, "signature");

    if (signatureA == null) {
        fail("Signature wasn't created with anderson cer on " + testDataFileName);
    }
    if (signatureB == null) {
        fail("Signature wasn't created with bobaFet cer on " + emptyFileName);
    }
    if (signatureC == null) {
        fail("Signature wasn't created with Cyril cer on " + testDataFileName);
    }

}

---

From source file:cz.muni.ics.remsig.impl.SignerImplIT.java

/**
 * Test of signPdf method, of class SignerImpl.
 *//*from www. j  ava  2s  .co  m*/
@Test
public void testSignPdf_3args() throws Exception {
    docInit();
    ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
    SignerImpl signer = new SignerImpl(configuration);
    signer.setJdbcTemplate((JdbcTemplate) ac.getBean("jdbcTemplate"));
    Security.addProvider(new BouncyCastleProvider());

    signer.prepareWaterMark();

    String emptyFileName = "test/testFiles/empty.pdf";
    String testDataFileName = "test/testFiles/testdata.pdf";
    byte[] emptypdf = testManager.loadFileBytes("test/testFiles/empty.pdf");
    byte[] testData = testManager.loadFileBytes("test/testFiles/testdata.pdf");
    byte[] notPdf = testManager.loadFileBytes("test/testFiles/other.pdf");

    try {
        testDocument1 = signer.signPdf(null, andersonDefPass, emptypdf);
        testDocument2 = signer.signPdf(anderson, null, emptypdf);
        testDocument3 = signer.signPdf(anderson, andersonDefPass, null);
        testDocument4 = signer.signPdf(null, null, emptypdf);
        testDocument5 = signer.signPdf(anderson, null, null);
        testDocument6 = signer.signPdf(null, andersonDefPass, null);
        testDocument7 = signer.signPdf(null, null, null);

    } catch (NullPointerException e) {
        fail("Uncaught nullpointerException");
    }
    Document[] testSubjects = new Document[] { testDocument1, testDocument2, testDocument3, testDocument4,
            testDocument5, testDocument6, testDocument7 };
    if (0 != testManager.chceckDocuments(testSubjects, 0, 0)) {
        fail("some documents were signed with null data");
    }

    try {
        docInit();
        testDocument1 = signer.signPdf(cyril, andersonDefPass, testData);
        testDocument2 = signer.signPdf(anderson, bobaFetDefPass, testData);
        testDocument3 = signer.signPdf(anderson, andersonDefPass, notPdf);
        testDocument4 = signer.signPdf(anderson, bobaFetDefPass, notPdf);
        assertNull(testManager.extractElementFromXmlDoc(testDocument1, "signature"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument2, "signature"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument3, "signature"));
        assertNull(testManager.extractElementFromXmlDoc(testDocument4, "signature"));

    } catch (Exception e) {
    }
    testDocument1 = signer.signPdf(anderson, andersonDefPass, testData);
    String signatureA = testManager.extractElementFromXmlDoc(testDocument1, "signature");

    testDocument2 = signer.signPdf(bobaFet, bobaFetDefPass, emptypdf);
    String signatureB = testManager.extractElementFromXmlDoc(testDocument2, "signature");

    testDocument3 = signer.signPdf(cyril, cyrilDefPass, testData);
    String signatureC = testManager.extractElementFromXmlDoc(testDocument2, "signature");

    if (signatureA == null) {
        fail("Signature wasn't created with anderson cer on " + testDataFileName);
    }
    if (signatureB == null) {
        fail("Signature wasn't created with bobaFet cer on " + emptyFileName);
    }
    if (signatureC == null) {
        fail("Signature wasn't created with Cyril cer on " + testDataFileName);
    }

}

---

From source file:cz.muni.ics.remsig.impl.SignerImplIT.java

/**
 * Test of createSignature method, of class SignerImpl.
 *//*  w ww .  j a v  a  2 s .  co  m*/
@Test
public void testCreateSignature() throws Exception {
    docInit();
    ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
    SignerImpl signer = new SignerImpl(configuration);
    signer.setJdbcTemplate((JdbcTemplate) ac.getBean("jdbcTemplate"));
    Security.addProvider(new BouncyCastleProvider());

    PrivateKey privateKey = testManager.loadPrivateKey("test/testFiles/private_key.der");

    try {
        byte[] sig1 = signer.createSignature(privateKey, null);
        byte[] sig2 = signer.createSignature(null, "something");
        byte[] sig3 = signer.createSignature(null, null);
        if ((sig1 != sig2) != (sig3 != null)) {
            fail("values with null passed");
        }
    } catch (NullPointerException e) {
        fail("Uncaught NullPointerException was thrown");
    }

    byte[] a = signer.createSignature(privateKey, "abcde");
    byte[] b = signer.createSignature(privateKey, "abcde");
    if (a == null || b == null) {
        fail("signature wasnt created");
    }

}

---

From source file:cz.muni.ics.remsig.impl.TestManager.java

/**
 * Setting up database for first use it is expected to have database in this 
 * format 2 different p12 certificates are necessary 
 * @throws RemSigException//from w  ww. j  a v a  2s .com
 * @throws Exception 
 */
public void generateXmlForSetUp() throws RemSigException, Exception {
    ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
    manager = new CertificateManagerImpl(configuration);
    manager.setJdbcTemplate((JdbcTemplate) ac.getBean("jdbcTemplate"));
    Security.addProvider(new BouncyCastleProvider());
    databaseTester.setSetUpOperation(DatabaseOperation.DELETE_ALL);
    databaseTester.onSetup();

    manager.generateRequest(anderson, andersonDefPass);
    manager.generateRequest(bobaFet, bobaFetDefPass);
    manager.generateRequest(cyril, cyrilDefPass);
    manager.generateRequest(daryl, darylDefPass);
    manager.generateRequest(eva, evaDefPass);
    manager.generateRequest(frank, frankDefPass);
    manager.generateRequest(gregor, gregorDefPass);
    manager.generateRequest(helena, helenaDefPass);
    manager.generateRequest(igor, igorDefPass);

    String p12Certificate1 = loadPKCS12("test/testFiles/sub1-cert.p12");
    String p12Certificate2 = loadPKCS12("test/testFiles/sub2-cert.p12");
    String p12Certificate3 = loadPKCS12("test/testFiles/sub3-cert.p12");

    String p12passToCer1 = "123456";
    String p12passToCer2 = "123456";
    String p12passToCer3 = "123456";

    manager.importPKCS12(anderson, p12Certificate1, andersonDefPass, p12passToCer1);
    manager.importPKCS12(bobaFet, p12Certificate2, bobaFetDefPass, p12passToCer2);
    manager.importPKCS12(cyril, p12Certificate1, cyrilDefPass, p12passToCer1);

    try {
        exportsDatabaseIntoXml("NewInitDatabase.xml");
    } catch (Exception ex) {
    }

}

---

From source file:czlab.twisty.SSLTrustMgrFactory.java

License:Open Source License

public static void main(String[] args) {
    try {//w w w.ja v  a 2 s  . c  o m
        Security.addProvider(new BouncyCastleProvider());
        KeyStore s = KeyStore.getInstance("PKCS12", "BC");
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        s.load(null, null);
        try (InputStream inp = new FileInputStream("servercert.pem")) {
            CertificateFactory fac = CertificateFactory.getInstance("X.509");
            Object cp = fac.generateCertificates(inp);
            Object obj = fac.getCertPathEncodings().next();

            //        s.setCertificateEntry("aaa", c);
            //        s.store(baos, "sesame".toCharArray());
            //        //Object e= s.aliases();
            System.out.println(s.toString());
        }
        byte[] out = baos.toByteArray();
        ByteArrayInputStream inp = new ByteArrayInputStream(out);
        s = KeyStore.getInstance("PKCS12", "BC");
        s.load(inp, "sesame".toCharArray());
        Certificate c = s.getCertificate("aaa");
        System.out.println(c.toString());
        out = null;
    } catch (Throwable t) {
        t.printStackTrace();
    }
}

---

From source file:dam.asimetrico.Cert.java

public static void main(String[] args) {

    try {//from   w  ww .  j a  va2  s  . com
        // Anadir provider JCE (provider por defecto no soporta RSA)
        Security.addProvider(new BouncyCastleProvider()); // Cargar el provider BC
        CertAndKeyGen certGen = new CertAndKeyGen("RSA", "SHA256WithRSA", null);
        // generate it with 2048 bits
        certGen.generate(2048);
        // prepare the validity of the certificate
        long validSecs = (long) 365 * 24 * 60 * 60; // valid for one year
        // add the certificate information, currently only valid for one year.

        X509Certificate cert = certGen.getSelfCertificate(
                // enter your details according to your application
                new X500Name("CN=Pedro Salazar,O=My Organisation,L=My City,C=DE"), validSecs);

        PrivateKey pk = certGen.getPrivateKey();
        PublicKey publicKey = certGen.getPublicKeyAnyway();
        System.out.println(cert.getIssuerX500Principal());

        String dn = cert.getSubjectX500Principal().getName();
        LdapName ldapDN = new LdapName(dn);
        for (Rdn rdn : ldapDN.getRdns()) {
            if (rdn.getType().equals("CN")) {
                System.out.println(rdn.getValue());
            }
        }

        //KeyPairGenerator generadorRSA = KeyPairGenerator.getInstance("RSA", "BC"); // Hace uso del provider BC
        //generadorRSA.initialize(1024);
        KeyPair clavesRSA = null;
        PrivateKey clavePrivada = null;
        PublicKey clavePublica = null;

        KeyStore ks = KeyStore.getInstance("PKCS12", "BC");
        char[] password = "abc".toCharArray();
        ks.load(null, null);
        ks.setCertificateEntry("publica", cert);
        ks.setKeyEntry("privada", pk, null, new Certificate[] { cert });
        FileOutputStream fos = new FileOutputStream("keystore.pfx");
        ks.store(fos, password);
        fos.close();

        //leer fichero
        KeyStore ksLoad = KeyStore.getInstance("PKCS12", "BC");
        ksLoad.load(new FileInputStream("keystore.pfx"), password);

        X509Certificate certLoad = (X509Certificate) ksLoad.getCertificate("publica");
        KeyStore.PasswordProtection pt = new KeyStore.PasswordProtection(password);
        PrivateKeyEntry privateKeyEntry = (PrivateKeyEntry) ksLoad.getEntry("privada", pt);
        RSAPrivateKey keyLoad = (RSAPrivateKey) privateKeyEntry.getPrivateKey();

        System.out.println(cert.getIssuerX500Principal());
        System.out.println(cert.getSubjectX500Principal());
        //certLoad.verify(clavePublica);

        dn = certLoad.getSubjectX500Principal().getName();
        ldapDN = new LdapName(dn);
        for (Rdn rdn : ldapDN.getRdns()) {
            if (rdn.getType().equals("CN")) {
                System.out.println(rdn.getValue());
            }
        }

        clavesRSA = new KeyPair(certLoad.getPublicKey(), keyLoad);

        Cipher cifrador = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");
        cifrador.init(Cipher.ENCRYPT_MODE, clavesRSA.getPrivate());
        cifrador.doFinal("hola".getBytes());

        Signature sign = Signature.getInstance("SHA256WithRSA");

        sign.initSign(clavesRSA.getPrivate());

        MessageDigest hash = MessageDigest.getInstance("SHA512");

        sign.update(hash.digest("hola".getBytes()));
        byte[] firma = sign.sign();

        sign.initVerify(certLoad.getPublicKey());
        sign.update(hash.digest("hola".getBytes()));
        System.out.println(sign.verify(firma));

        try {
            CertificateFactory cf = CertificateFactory.getInstance("X.509");
            Certificate cert2 = cf.generateCertificate(new ByteArrayInputStream(certLoad.getEncoded()));

            System.out.println(cert2);
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        KeyStore ksMX = KeyStore.getInstance("WINDOWS-MY", "SunMSCAPI");
        ksLoad.load(null, null);

    } catch (Exception ex) {
        Logger.getLogger(Cert.class.getName()).log(Level.SEVERE, null, ex);
    }

}

---

From source file:dam.asimetrico.CifrarRSAFicheros.java

public static void main(String[] args) throws FileNotFoundException {

    String nombre = "albertoastudillo";
    try {//from w ww.ja  v a 2 s.  c o m
        // Anadir provider JCE (provider por defecto no soporta RSA)
        Security.addProvider(new BouncyCastleProvider()); // Cargar el provider BC
        //Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
        Cipher cifrador = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");

        // Crear KeyFactory (depende del provider) usado para las transformaciones de claves*/
        KeyFactory keyFactoryRSA = KeyFactory.getInstance("RSA", "BC"); // Hace uso del provider BC
        //*** 4 Recuperar clave PUBLICA del fichero */
        // 4.1 Leer datos binarios x809
        byte[] bufferPub = new byte[5000];
        FileInputStream in = new FileInputStream(nombre + ".publica");
        DataInputStream d = new DataInputStream(in);

        int charsPub = in.read(bufferPub, 0, 5000);
        in.close();

        byte[] bufferPub2 = new byte[charsPub];
        System.arraycopy(bufferPub, 0, bufferPub2, 0, charsPub);

        // 4.2 Recuperar clave publica desde datos codificados en formato X509
        X509EncodedKeySpec clavePublicaSpec = new X509EncodedKeySpec(bufferPub2);
        PublicKey clavePublica2 = keyFactoryRSA.generatePublic(clavePublicaSpec);

        // PASO 3a: Poner cifrador en modo CIFRADO
        cifrador.init(Cipher.ENCRYPT_MODE, clavePublica2); // Cifra con la clave publica

        System.out.println("3a. Cifrar con clave publica");

        String sinCifrar = "123456";

        System.out.println(sinCifrar.getBytes("UTF-8").length);

        byte[] bufferCifrado = null;
        byte[] bufferCode64 = null;
        byte[] buffer = sinCifrar.getBytes("UTF-8");
        System.out.println("TEXTO CIFRADO" + buffer.length);

        bufferCifrado = cifrador.doFinal(buffer);

        System.out.println("TEXTO CIFRADO" + bufferCifrado.length);
        mostrarBytes(bufferCifrado);
        bufferCode64 = Base64.encodeBase64(bufferCifrado);
        System.out.println("\n------------CODE 64 --------- ");
        mostrarBytes(bufferCode64);

        // PASO 3b: Poner cifrador en modo DESCIFRADO
        // 2 Recuperar clave Privada del fichero */
        // 2.1 Leer datos binarios PKCS8
        byte[] bufferPriv = new byte[5000];
        in = new FileInputStream(nombre + ".privada");
        int chars = in.read(bufferPriv, 0, 5000);
        in.close();

        byte[] bufferPriv2 = new byte[chars];
        System.arraycopy(bufferPriv, 0, bufferPriv2, 0, chars);

        // 2.2 Recuperar clave privada desde datos codificados en formato PKCS8
        PKCS8EncodedKeySpec clavePrivadaSpec = new PKCS8EncodedKeySpec(bufferPriv2);

        PrivateKey clavePrivada2 = keyFactoryRSA.generatePrivate(clavePrivadaSpec);

        cifrador.init(Cipher.DECRYPT_MODE, clavePrivada2); // Descrifra con la clave privada

        System.out.println("3b. Descifrar con clave privada");
        byte[] bufferPlano2 = cifrador.doFinal(bufferCifrado);

        System.out.println("TEXTO DESCIFRADO");
        mostrarBytes(bufferPlano2);
        System.out.println("TEXTO DESCIFRADO despues de codificar");
        mostrarBytes(cifrador.doFinal(Base64.decodeBase64(bufferCode64)));

        System.out.println("\n-------------------------------");
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(CifrarRSAFicheros.class.getName()).log(Level.SEVERE, null, ex);
    } catch (NoSuchPaddingException ex) {
        Logger.getLogger(CifrarRSAFicheros.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(CifrarRSAFicheros.class.getName()).log(Level.SEVERE, null, ex);
    } catch (InvalidKeyException ex) {
        Logger.getLogger(CifrarRSAFicheros.class.getName()).log(Level.SEVERE, null, ex);
    } catch (InvalidKeySpecException ex) {
        Logger.getLogger(CifrarRSAFicheros.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IllegalBlockSizeException ex) {
        Logger.getLogger(CifrarRSAFicheros.class.getName()).log(Level.SEVERE, null, ex);
    } catch (BadPaddingException ex) {
        Logger.getLogger(CifrarRSAFicheros.class.getName()).log(Level.SEVERE, null, ex);
    } catch (NoSuchProviderException ex) {
        Logger.getLogger(CifrarRSAFicheros.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:dam.asimetrico.ClienteWeb.java

public static void main(String[] args) {
    CloseableHttpClient httpclient;//from  ww  w .  j  a v a2s .co m
    httpclient = HttpClients.createDefault();
    //pedir clave publica
    try {
        HttpPost httpPost = new HttpPost("http://localhost:8080/encriptacionServidor/rsa");
        List<NameValuePair> nvps = new ArrayList<NameValuePair>();

        nvps.add(new BasicNameValuePair("op", "PUBLICA"));
        httpPost.setEntity(new UrlEncodedFormEntity(nvps));
        CloseableHttpResponse response2 = httpclient.execute(httpPost);
        HttpEntity entity = response2.getEntity();

        String base64Publica = EntityUtils.toString(entity, "UTF-8");

        // Anadir provider JCE (provider por defecto no soporta RSA)
        Security.addProvider(new BouncyCastleProvider()); // Cargar el provider BC
        //Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
        Cipher cifrador = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");

        // Crear KeyFactory (depende del provider) usado para las transformaciones de claves*/
        KeyFactory keyFactoryRSA = KeyFactory.getInstance("RSA", "BC"); // Hace uso del provider BC

        // 4.2 Recuperar clave publica desde datos codificados en formato X509
        X509EncodedKeySpec clavePublicaSpec = new X509EncodedKeySpec(Base64.decode(base64Publica));
        PublicKey clavePublica2 = keyFactoryRSA.generatePublic(clavePublicaSpec);

        //descifrar mensaje
        httpPost = new HttpPost("http://localhost:8080/encriptacionServidor/rsa");
        nvps = new ArrayList<NameValuePair>();

        nvps.add(new BasicNameValuePair("op", "CIFRADO"));
        httpPost.setEntity(new UrlEncodedFormEntity(nvps));
        response2 = httpclient.execute(httpPost);
        entity = response2.getEntity();

        base64Publica = EntityUtils.toString(entity, "UTF-8");

        cifrador.init(Cipher.DECRYPT_MODE, clavePublica2); // Cifra con la clave publica

        System.out.println(new String(cifrador.doFinal(Base64.decode(base64Publica))));

    } catch (Exception ex) {
        Logger.getLogger(ClienteWeb.class.getName()).log(Level.SEVERE, null, ex);
    }

}

---

From source file:dam.asimetrico.ClienteWebCert.java

public static void main(String[] args) {
    CloseableHttpClient httpclient;/*from  w  ww .j a v a 2 s.  com*/
    httpclient = HttpClients.createDefault();
    //pedir clave publica
    try {
        HttpPost httpPost = new HttpPost("http://localhost:8080/encriptacionServidor/pfx");
        List<NameValuePair> nvps = new ArrayList<NameValuePair>();

        nvps.add(new BasicNameValuePair("op", "NUEVO"));
        httpPost.setEntity(new UrlEncodedFormEntity(nvps));
        CloseableHttpResponse response2 = httpclient.execute(httpPost);
        HttpEntity entity = response2.getEntity();

        String base64Publica = EntityUtils.toString(entity, "UTF-8");

        Security.addProvider(new BouncyCastleProvider()); // Cargar el provider BC
        char[] password = "abc".toCharArray();
        ByteArrayInputStream input = new ByteArrayInputStream(Base64.decode(base64Publica));
        KeyStore ksLoad = KeyStore.getInstance("PKCS12", "BC");
        ksLoad.load(input, password);

        X509Certificate certLoad = (X509Certificate) ksLoad.getCertificate("publica");
        KeyStore.PasswordProtection pt = new KeyStore.PasswordProtection(password);
        KeyStore.PrivateKeyEntry privateKeyEntry = (KeyStore.PrivateKeyEntry) ksLoad.getEntry("privada", pt);
        RSAPrivateKey keyLoad = (RSAPrivateKey) privateKeyEntry.getPrivateKey();

        System.out.println(certLoad.getIssuerX500Principal());

        //descifrar mensaje
        httpPost = new HttpPost("http://localhost:8080/encriptacionServidor/pfx");
        nvps = new ArrayList<NameValuePair>();

        nvps.add(new BasicNameValuePair("op", "MANDAR"));
        //mandar certificado
        nvps.add(new BasicNameValuePair("cert", Base64.encode(certLoad.getEncoded())));

        //mandar texto
        nvps.add(new BasicNameValuePair("texto", "firmado"));

        //mandar firma
        Signature sign = Signature.getInstance("SHA256WithRSA");
        sign.initSign(keyLoad);
        sign.update("firmado".getBytes());
        byte[] firma = sign.sign();
        nvps.add(new BasicNameValuePair("firma", Base64.encode(firma)));

        httpPost.setEntity(new UrlEncodedFormEntity(nvps));
        response2 = httpclient.execute(httpPost);
        entity = response2.getEntity();

    } catch (Exception ex) {
        Logger.getLogger(ClienteWebCert.class.getName()).log(Level.SEVERE, null, ex);
    }

}

---

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