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.


        // load the private key
        KeyFactory keyFactory = KeyFactory.getInstance("DH");
        BigInteger privateKeyInt = new BigInteger(privateKeyBytes);
        DHPrivateKeySpec dhPrivateSpec = new DHPrivateKeySpec(privateKeyInt, dhParamSpec.getP(), dhParamSpec.getG());
        PrivateKey privateKey = keyFactory.generatePrivate(dhPrivateSpec);


        return privateKey;
    }


    /**

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        PublicKey publicKeyKF = kf.generatePublic(pubKeySpec);


        assertEquals(pubKey, publicKeyKF);
        assertEquals(pubKey.hashCode(), publicKeyKF.hashCode());


        PrivateKey privKeyKF = kf.generatePrivate(privKeySpec);


        assertEquals(privKey, privKeyKF);
        assertEquals(privKey.hashCode(), privKeyKF.hashCode());
    }

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    private PrivateKey getPrivateKeyFromDer(byte[] privateKeyObject)
            throws GeneralSecurityException {
        KeyFactory fac = KeyFactory.getInstance("RSA");
        EncodedKeySpec privKeySpec = new PKCS8EncodedKeySpec(privateKeyObject);
        return fac.generatePrivate(privKeySpec);
    }


    private PrivateKey getPrivateKeyFromPem(String pem)
    throws GeneralSecurityException, IOException {

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            throw new IOException("Invalid PEM file: Unknown marker " +
                    "for private key " + reader.getBeginMarker());
        }


        KeyFactory fac = KeyFactory.getInstance("RSA");
        return fac.generatePrivate(keySpec);
    }


    @Override
    protected String getSignature(String baseString) throws OAuthException {
        try {

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        ECPublicKey vKey = (ECPublicKey)p.getPublic();


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


        vKey = (ECPublicKey)fact.generatePublic(new ECPublicKeySpec(vKey.getQ(), null));
        sKey = (ECPrivateKey)fact.generatePrivate(new ECPrivateKeySpec(sKey.getD(), null));
        
        testECDSA(sKey, vKey);


        testBCParamsAndQ(sKey, vKey);
        testEC5Params(sKey, vKey);

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        testEC5Params(sKey, vKey);


        testEncoding(sKey, vKey);


        ECPublicKey vKey2 = (ECPublicKey)fact.generatePublic(new ECPublicKeySpec(vKey.getQ(), ecSpec));
        ECPrivateKey sKey2 = (ECPrivateKey)fact.generatePrivate(new ECPrivateKeySpec(sKey.getD(), ecSpec));


        if (!vKey.equals(vKey2) || vKey.hashCode() != vKey2.hashCode())
        {
            fail("private equals/hashCode failed");
        }

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        if (!sInfo.getAlgorithmId().getParameters().equals(DERNull.INSTANCE))
        {
            fail("private key parameters wrong");
        }


        ECPrivateKey sKey = (ECPrivateKey)kFact.generatePrivate(new PKCS8EncodedKeySpec(bytes));


        if (!sKey.equals(privKey))
        {
            fail("private equals failed");
        }

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        BigInteger r, 
        BigInteger s)
        throws Exception
    {
        KeyFactory          f = KeyFactory.getInstance("ECDSA", "BC");
        PrivateKey          sKey = f.generatePrivate(priKey);
        PublicKey           vKey = f.generatePublic(pubKey);


        sgr.initSign(sKey, k);


        sgr.update(message);

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        //
        // set up the keys
        //
        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);

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        // set up the keys
        //
        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);

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