Examples of javax.crypto.SecretKeyFactory.generateSecret()

javax.crypto.SecretKeyFactory.generateSecret()
Generate a secret key from the specified key specification. @param keySpec the key specification. @return a secret key. @throws InvalidKeySpecException if the specified key specification cannot be used to generate a secret key.

        {
            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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        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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            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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            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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            //
            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);

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            //
            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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        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;
    }


    private Cipher makePBECipherWithoutParam(

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        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;
    }


    public void testPBEHMac(

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        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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        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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