Examples of java.security.KeyFactory.generatePrivate()

java.security.KeyFactory.generatePrivate()
Generates a private key object from the provided key specification (key material). @param keySpec the specification (key material) of the private key. @return the private key. @exception InvalidKeySpecException if the given key specificationis inappropriate for this key factory to produce a private key.

        KeyFactory          fact = KeyFactory.getInstance("RSA", "BC");
        PrivateKey          caPrivKey  = fact.generatePrivate(caPrivKeySpec);
        PublicKey           caPubKey   = fact.generatePublic(caPubKeySpec);
        PrivateKey          intPrivKey = fact.generatePrivate(intPrivKeySpec);
        PublicKey           intPubKey  = fact.generatePublic(intPubKeySpec);
        PrivateKey          privKey    = fact.generatePrivate(privKeySpec);
        PublicKey           pubKey     = fact.generatePublic(pubKeySpec);
        
        X509Certificate     trustCert       = createTrustCert(caPubKey, caPrivKey);
        ASN1EncodableVector intPolicies     = null;
        Hashtable           map             = null;

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        SecureRandom        rand = new FixedSecureRandom();




        fact = KeyFactory.getInstance("RSA", "BC");


        PrivateKey  privKey = fact.generatePrivate(privKeySpec);
        PublicKey   pubKey = fact.generatePublic(pubKeySpec);
        
        PrivateKey  priv2048Key = fact.generatePrivate(priv2048KeySpec);
        PublicKey   pub2048Key = fact.generatePublic(pub2048KeySpec);

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        fact = KeyFactory.getInstance("RSA", "BC");


        PrivateKey  privKey = fact.generatePrivate(privKeySpec);
        PublicKey   pubKey = fact.generatePublic(pubKeySpec);
        
        PrivateKey  priv2048Key = fact.generatePrivate(priv2048KeySpec);
        PublicKey   pub2048Key = fact.generatePublic(pub2048KeySpec);


        //
        // No Padding
        //

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        //
        // ISO9796-1
        //
        byte[]      isoInput =  Hex.decode("fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210");
        PrivateKey  isoPrivKey = fact.generatePrivate(isoPrivKeySpec);
        PublicKey   isoPubKey = fact.generatePublic(isoPubKeySpec);


        c = Cipher.getInstance("RSA/NONE/ISO9796-1Padding", "BC");


        c.init(Cipher.ENCRYPT_MODE, isoPrivKey);

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        //
        // private key encoding test
        //
        byte[]              privEnc = aKeyPair.getPrivate().getEncoded();
        PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
        DHPrivateKey        privKey = (DHPrivateKey)keyFac.generatePrivate(privPKCS8);


        spec = privKey.getParams();


        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {

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        //
        // private key encoding test
        //
        byte[]              privEnc = aKeyPair.getPrivate().getEncoded();
        PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
        ECPrivateKey        privKey = (ECPrivateKey)keyFac.generatePrivate(privPKCS8);


        if (!privKey.getS().equals(((ECPrivateKey)aKeyPair.getPrivate()).getS()))
        {
            fail(algorithm + " private key encoding (S test) failed");
        }

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    {
        try
        {
            KeyFactory fact = KeyFactory.getInstance("RSA", "BC");


            PrivateKey  privKey = fact.generatePrivate(privKeySpec);
            PublicKey   pubKey = fact.generatePublic(pubKeySpec);


            Signature s = Signature.getInstance("SHA1withRSA/PSS", "BC");


            s.initSign(privKey, new FixedRandom(slt1a));

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                               new ECFieldElement.Fp(mod_p, new BigInteger("17614944419213781543809391949654080031942662045363639260709847859438286763994"))), // y
            spec);


        Signature           sgr = Signature.getInstance("ECGOST3410", "BC");
        KeyFactory          f = KeyFactory.getInstance("ECGOST3410", "BC");
        PrivateKey          sKey = f.generatePrivate(priKey);
        PublicKey           vKey = f.generatePublic(pubKey);


        sgr.initSign(sKey, k);


        byte[] message = new byte[] { (byte)'a', (byte)'b', (byte)'c' };

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        {
            fail("public number not decoded properly");
        }


        PKCS8EncodedKeySpec  pkcs8 = new PKCS8EncodedKeySpec(sKey.getEncoded());
        GOST3410PrivateKey   k2 = (GOST3410PrivateKey)f.generatePrivate(pkcs8);


        if (!k2.getX().equals(((GOST3410PrivateKey)sKey).getX()))
        {
            fail("private number not decoded properly");
        }

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        BigInteger  pub = new BigInteger("03", 16);
        BigInteger  pri = new BigInteger("2aaaaaaa942920e38120ee965168302fd0301d73a4e60c7143ceb0adf0bf30b9352f50e8b9e4ceedd65343b2179005b2f099915e4b0c37e41314bb0821ad8330d23cba7f589e0f129b04c46b67dfce9d", 16);


        KeyFactory  f = KeyFactory.getInstance("RSA", "BC");


        PrivateKey  privKey = f.generatePrivate(new RSAPrivateKeySpec(mod, pri));
        PublicKey   pubKey = f.generatePublic(new RSAPublicKeySpec(mod, pub));
        byte[]      testSig = Hex.decode("5cf9a01854dbacaec83aae8efc563d74538192e95466babacd361d7c86000fe42dcb4581e48e4feb862d04698da9203b1803b262105104d510b365ee9c660857ba1c001aa57abfd1c8de92e47c275cae");


        data = Hex.decode("fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba9876543210");

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