Examples of javax.crypto.SecretKeyFactory

javax.crypto.SecretKeyFactory
The public API for {@code SecretKeyFactory} implementations.
Secret key factories provide the following functionality:
- convert {@link SecretKey} objects to and from {@link KeySpec} objects
- translate {@link SecretKey} objects from one provider implementation toanother
Which key specifications are supported by the {@link #generateSecret} and{@link #getKeySpec} is provider dependent.

        PKCS12PBEParams pbeParams = new PKCS12PBEParams((ASN1Sequence)algId.getParameters());
        PBEKeySpec      pbeSpec = new PBEKeySpec(password);


        try
        {
            SecretKeyFactory keyFact = SecretKeyFactory.getInstance(algorithm, "BC");
            PBEParameterSpec defParams = new PBEParameterSpec(
                pbeParams.getIV(),
                pbeParams.getIterations().intValue());
            JCEPBEKey        key = (JCEPBEKey) keyFact.generateSecret(pbeSpec);


            key.setTryWrongPKCS12Zero(wrongPKCS12Zero);


            Cipher cipher = Cipher.getInstance(algorithm, "BC");
            int mode = forEncryption ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE;

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        char[]              password,
        boolean             wrongPkcs12Zero,
        byte[]              data)
        throws Exception
    {
        SecretKeyFactory    keyFact = SecretKeyFactory.getInstance(oid.getId(), "BC");
        PBEParameterSpec    defParams = new PBEParameterSpec(salt, itCount);
        PBEKeySpec          pbeSpec = new PBEKeySpec(password);
        JCEPBEKey           key = (JCEPBEKey) keyFact.generateSecret(pbeSpec);
        key.setTryWrongPKCS12Zero(wrongPkcs12Zero);


        Mac mac = Mac.getInstance(oid.getId(), "BC");
        mac.init(key, defParams);
        mac.update(data);

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        byte[]  salt,
        int     iterationCount)
        throws Exception
    {
        PBEKeySpec          pbeSpec = new PBEKeySpec(password);
        SecretKeyFactory    keyFact = SecretKeyFactory.getInstance(algorithm, "BC");
        PBEParameterSpec    defParams = new PBEParameterSpec(salt, iterationCount);


        Cipher cipher = Cipher.getInstance(algorithm, "BC");


        cipher.init(mode, keyFact.generateSecret(pbeSpec), defParams);


        return cipher;
    }

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        byte[]  salt,
        int     iterationCount)
        throws Exception
    {
        PBEKeySpec          pbeSpec = new PBEKeySpec(password, salt, iterationCount);
        SecretKeyFactory    keyFact = SecretKeyFactory.getInstance(algorithm, "BC");


        Cipher cipher = Cipher.getInstance(algorithm, "BC");


        cipher.init(mode, keyFact.generateSecret(pbeSpec));


        return cipher;
    }

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        byte[]              out;
        Mac                 mac;


        try
        {
            SecretKeyFactory    fact = SecretKeyFactory.getInstance(hmacName, "BC");


            key = fact.generateSecret(new PBEKeySpec("hello".toCharArray()));
            
            mac = Mac.getInstance(hmacName, "BC");
        }
        catch (Exception e)
        {

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            byte[]          enc = c.doFinal(salt);


            c = Cipher.getInstance(algorithm, "BC");


            PBEKeySpec          keySpec = new PBEKeySpec(password, salt, iCount);
            SecretKeyFactory    fact = SecretKeyFactory.getInstance(algorithm, "BC");


            c.init(Cipher.DECRYPT_MODE, fact.generateSecret(keySpec));


            byte[]          dec = c.doFinal(enc);


            if (!arrayEquals(salt, dec))
            {

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            byte[]          enc = c.doFinal(salt);


            c = Cipher.getInstance(algorithm, "BC");


            PBEKeySpec          keySpec = new PBEKeySpec(password, salt, iCount);
            SecretKeyFactory    fact = SecretKeyFactory.getInstance(algorithm, "BC");


            c.init(Cipher.DECRYPT_MODE, fact.generateSecret(keySpec));


            byte[]          dec = c.doFinal(enc);


            if (!arrayEquals(salt, dec))
            {
                fail("" + algorithm + "failed encryption/decryption test");
            }


            //
            // get the parameters
            //
            AlgorithmParameters param = checkParameters(c, salt, iCount);


            //
            // try using parameters
            //
            c = Cipher.getInstance(algorithm, "BC");


            keySpec = new PBEKeySpec(password);


            c.init(Cipher.DECRYPT_MODE, fact.generateSecret(keySpec), param);


            checkParameters(c, salt, iCount);


            dec = c.doFinal(enc);


            if (!arrayEquals(salt, dec))
            {
                fail("" + algorithm + "failed encryption/decryption test");
            }


            //
            // try using PBESpec
            //
            c = Cipher.getInstance(algorithm, "BC");


            keySpec = new PBEKeySpec(password);


            c.init(Cipher.DECRYPT_MODE, fact.generateSecret(keySpec), param.getParameterSpec(PBEParameterSpec.class));


            checkParameters(c, salt, iCount);


            dec = c.doFinal(enc);

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        throws IOException
    {
        try
        {
            PBEKeySpec          pbeSpec = new PBEKeySpec(password);
            SecretKeyFactory    keyFact = SecretKeyFactory.getInstance(algorithm, "BC");
            PBEParameterSpec    defParams = new PBEParameterSpec(salt, iterationCount);


            Cipher cipher = Cipher.getInstance(algorithm, "BC");


            cipher.init(mode, keyFact.generateSecret(pbeSpec), defParams);


            return cipher;
        }
        catch (Exception e)
        {

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        iterationCount = Integer.parseInt(ic);


        String algo = "PBEwithMD5andDES";


        // Create the PBE secret key
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBEwithMD5andDES");


        char[] password = "somearbitrarycrazystringthatdoesnotmatter".toCharArray();
        PBEParameterSpec cipherSpec = new PBEParameterSpec(salt.getBytes(), iterationCount);
        PBEKeySpec keySpec = new PBEKeySpec(password);
        SecretKey cipherKey = factory.generateSecret(keySpec);


        String maskedPass = PBEUtils.encode64(passwd.getBytes(), algo, cipherKey, cipherSpec);


        return new String(PicketBoxSecurityVault.PASS_MASK_PREFIX) + maskedPass;
    }

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        if (!DEFSupported) {
            fail(NotSupportMsg);
            return;
        }
        SecretKeyFactorySpi spi = new MySecretKeyFactorySpi();
        SecretKeyFactory secKF = new mySecretKeyFactory(spi, defaultProvider,
                defaultAlgorithm);
        assertEquals("Incorrect algorithm", secKF.getAlgorithm(),
                defaultAlgorithm);
        assertEquals("Incorrect provider", secKF.getProvider(), defaultProvider);
        assertNull("Incorrect result", secKF.generateSecret(null));
        assertNull("Incorrect result", secKF.getKeySpec(null, null));
        assertNull("Incorrect result", secKF.translateKey(null));
        secKF = new mySecretKeyFactory(null, null, null);
        assertNull("Algorithm must be null", secKF.getAlgorithm());
        assertNull("Provider must be null", secKF.getProvider());
        try {
            secKF.translateKey(null);
            fail("NullPointerException must be thrown");
        } catch (NullPointerException e) {            
        }
    }

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