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


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


            key.setTryWrongPKCS12Zero(wrongPKCS12Zero);


            Cipher cipher = Cipher.getInstance(algorithm, bcProvider);
            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(), bcProvider);
        PBEParameterSpec defParams = new PBEParameterSpec(salt, itCount);
        PBEKeySpec pbeSpec = new PBEKeySpec(password);
        BCPBEKey key = (BCPBEKey)keyFact.generateSecret(pbeSpec);
        key.setTryWrongPKCS12Zero(wrongPkcs12Zero);


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

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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 (!Arrays.areEqual(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 (!Arrays.areEqual(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 (!Arrays.areEqual(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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        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[]              out;
        Mac                 mac;


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


            key = fact.generateSecret(new PBEKeySpec("hello".toCharArray(), new byte[20], 100, 160));


            mac = Mac.getInstance("HMAC-SHA1", "BC");
        }
        catch (Exception e)
        {

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                        };
        char[] password = { 'p','a','s','s','w','o','r','d' };


        PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 20);
        PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
        SecretKeyFactory keyFac =
        SecretKeyFactory.getInstance(name);
        SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);
        Cipher pbeEncryptCipher = Cipher.getInstance(name, "BC");


        pbeEncryptCipher.init(Cipher.WRAP_MODE, pbeKey, pbeParamSpec);


        byte[] symKeyBytes = pbeEncryptCipher.wrap(key);

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        throws Exception
    {
        byte[] utf8K = Hex.decode(utf8);
        byte[] ascK = Hex.decode(eightBit);


        SecretKeyFactory f = SecretKeyFactory.getInstance(baseAlg, "BC");
        KeySpec ks1 = new PBEKeySpec("\u0141\u0142".toCharArray(), new byte[20], 4096, 160);
        if (!Arrays.areEqual((defIsUTF8) ? utf8K : ascK, f.generateSecret(ks1).getEncoded()))
        {
            fail(baseAlg + " wrong PBKDF2 k1 key generated, got : " + new String(Hex.encode(f.generateSecret(ks1).getEncoded())));
        }


        KeySpec ks2 = new PBEKeySpec("\u0041\u0042".toCharArray(), new byte[20], 4096, 160);
        if (!Arrays.areEqual(ascK, f.generateSecret(ks2).getEncoded()))
        {
            fail(baseAlg + " wrong PBKDF2 k2 key generated");
        }
        f = SecretKeyFactory.getInstance(baseAlg + "AndUTF8", "BC");
        ks1 = new PBEKeySpec("\u0141\u0142".toCharArray(), new byte[20], 4096, 160);
        if (!Arrays.areEqual(utf8K, f.generateSecret(ks1).getEncoded()))
        {
            fail(baseAlg + " wrong PBKDF2 k1 utf8 key generated");
        }


        ks2 = new PBEKeySpec("\u0041\u0042".toCharArray(), new byte[20], 4096, 160);
        if (!Arrays.areEqual(ascK, f.generateSecret(ks2).getEncoded()))
        {
            fail(baseAlg + " wrong PBKDF2 k2 utf8 key generated");
        }
        f = SecretKeyFactory.getInstance(baseAlg + "And8BIT", "BC");
        ks1 = new PBEKeySpec("\u0141\u0142".toCharArray(), new byte[20], 4096, 160);
        if (!Arrays.areEqual(ascK, f.generateSecret(ks1).getEncoded()))
        {
            fail(baseAlg + " wrong PBKDF2 k1 8bit key generated");
        }


        ks2 = new PBEKeySpec("\u0041\u0042".toCharArray(), new byte[20], 4096, 160);
        if (!Arrays.areEqual(ascK, f.generateSecret(ks2).getEncoded()))
        {
            fail(baseAlg + " wrong PBKDF2 k2 8bit key generated");
        }
    }

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