Examples of DHPublicKey

Examples of javax.crypto.interfaces.DHPublicKey

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        PublicKey    key)
        throws InvalidKeyException
    {
        if (key instanceof DHPublicKey)
        {
            DHPublicKey    k = (DHPublicKey)key;

            return new DHPublicKeyParameters(k.getY(),
                new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
        }

        throw new InvalidKeyException("can't identify DH public key.");
    }
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Examples of javax.crypto.interfaces.DHPublicKey

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            return new ElGamalPublicKeyParameters(k.getY(),
                new ElGamalParameters(k.getParameters().getP(), k.getParameters().getG()));
        }
        else if (key instanceof DHPublicKey)
        {
            DHPublicKey    k = (DHPublicKey)key;

            return new ElGamalPublicKeyParameters(k.getY(),
                new ElGamalParameters(k.getParams().getP(), k.getParams().getG()));
        }

        throw new InvalidKeyException("can't identify public key for El Gamal.");
    }
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Examples of javax.crypto.interfaces.DHPublicKey

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        if (!(key instanceof DHPublicKey))
        {
            throw new InvalidKeyException("DHKeyAgreement doPhase requires DHPublicKey");
        }
        DHPublicKey pubKey = (DHPublicKey)key;

        if (!pubKey.getParams().getG().equals(g) || !pubKey.getParams().getP().equals(p))
        {
            throw new InvalidKeyException("DHPublicKey not for this KeyAgreement!");
        }

        if (lastPhase)
        {
            result = ((DHPublicKey)key).getY().modPow(x, p);
            return null;
        }
        else
        {
            result = ((DHPublicKey)key).getY().modPow(x, p);
        }

        return new JCEDHPublicKey(result, pubKey.getParams());
    }
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Examples of javax.crypto.interfaces.DHPublicKey

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        // public key encoding test
        //
        byte[]                  pubEnc = keyPair.getPublic().getEncoded();
        KeyFactory              keyFac = KeyFactory.getInstance("ElGamal", "BC");
        X509EncodedKeySpec      pubX509 = new X509EncodedKeySpec(pubEnc);
        DHPublicKey             pubKey = (DHPublicKey)keyFac.generatePublic(pubX509);
        DHParameterSpec         spec = pubKey.getParams();

        if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
        {
            fail(size + " bit public key encoding/decoding test failed on parameters");
        }

        if (!((DHPublicKey)keyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key encoding/decoding test failed on y value");
        }

        //
        // public key serialisation test
        //
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
        ObjectOutputStream      oOut = new ObjectOutputStream(bOut);

        oOut.writeObject(keyPair.getPublic());

        ByteArrayInputStream   bIn = new ByteArrayInputStream(bOut.toByteArray());
        ObjectInputStream      oIn = new ObjectInputStream(bIn);

        pubKey = (DHPublicKey)oIn.readObject();
        spec = pubKey.getParams();

        if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
        {
            fail(size + " bit public key serialisation test failed on parameters");
        }

        if (!((DHPublicKey)keyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key serialisation test failed on y value");
        }

        //
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Examples of javax.crypto.interfaces.DHPublicKey

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            // public key encoding test
            //
            byte[]              pubEnc = aKeyPair.getPublic().getEncoded();
            KeyFactory          keyFac = KeyFactory.getInstance("DH", "BC");
            X509EncodedKeySpec  pubX509 = new X509EncodedKeySpec(pubEnc);
            DHPublicKey         pubKey = (DHPublicKey)keyFac.generatePublic(pubX509);
            DHParameterSpec     spec = pubKey.getParams();

            if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
            {
                return new SimpleTestResult(false, size + " bit public key encoding/decoding test failed on parameters");
            }

            if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
            {
                return new SimpleTestResult(false, size + " bit public key encoding/decoding test failed on y value");
            }

            //
            // public key serialisation test
            //
            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
            ObjectOutputStream      oOut = new ObjectOutputStream(bOut);

            oOut.writeObject(aKeyPair.getPublic());

            ByteArrayInputStream   bIn = new ByteArrayInputStream(bOut.toByteArray());
            ObjectInputStream      oIn = new ObjectInputStream(bIn);

            pubKey = (DHPublicKey)oIn.readObject();
            spec = pubKey.getParams();

            if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
            {
                return new SimpleTestResult(false, size + " bit public key serialisation test failed on parameters");
            }

            if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
            {
                return new SimpleTestResult(false, size + " bit public key serialisation test failed on y value");
            }

            //
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Examples of javax.crypto.interfaces.DHPublicKey

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           return new DHPrivateKeySpec(k.getX(), k.getParams().getP(), k.getParams().getG());
       }
       else if (spec.isAssignableFrom(DHPublicKeySpec.class) && key instanceof DHPublicKey)
       {
           DHPublicKey k = (DHPublicKey)key;

           return new DHPublicKeySpec(k.getY(), k.getParams().getP(), k.getParams().getG());
       }

        throw new RuntimeException("not implemented yet " + key + " " + spec);
    }
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Examples of javax.crypto.interfaces.DHPublicKey

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            throw new IllegalStateException("Unable to create 128 byte keys in 100 tries");
        }

        // place holder for the keys
        DHPrivateKey privateKey = null;
        DHPublicKey publicKey = null;

        if (!kekOnly) {
            KeyPair keyPair = null;
            try {
                keyPair = this.createKeys();
            } catch (NoSuchAlgorithmException e) {
                Debug.logError(e, module);
            } catch (InvalidAlgorithmParameterException e) {
                Debug.logError(e, module);
            } catch (InvalidKeySpecException e) {
                Debug.logError(e, module);
            }

            if (keyPair != null) {
                publicKey = (DHPublicKey) keyPair.getPublic();
                privateKey = (DHPrivateKey) keyPair.getPrivate();

                if (publicKey == null || publicKey.getY().toByteArray().length != 128) {
                    // run again until we get a 128 byte public key for VL
                    return this.outputKeyCreation(loop, kekOnly, kekTest);
                }
            } else {
                Debug.logInfo("Returned a null KeyPair", module);
                return this.outputKeyCreation(loop, kekOnly, kekTest);
            }
        } else {
            // use our existing private key to generate a KEK
            try {
                privateKey = (DHPrivateKey) this.getPrivateKey();
            } catch (Exception e) {
                Debug.logError(e, module);
            }
        }

        // the KEK
        byte[] kekBytes = null;
        try {
            kekBytes = this.generateKek(privateKey);
        } catch (NoSuchAlgorithmException e) {
            Debug.logError(e, module);
        } catch (InvalidKeySpecException e) {
            Debug.logError(e, module);
        } catch (InvalidKeyException e) {
            Debug.logError(e, module);
        }

        // the 3DES KEK value
        SecretKey loadedKek = this.getDesEdeKey(kekBytes);
        byte[] loadKekBytes = loadedKek.getEncoded();

        // test the KEK
        Cipher cipher = this.getCipher(this.getKekKey(), Cipher.ENCRYPT_MODE);
        byte[] kekTestB = { 0, 0, 0, 0, 0, 0, 0, 0 };
        byte[] kekTestC = new byte[0];
        if (kekTest != null) {
            kekTestB = StringUtil.fromHexString(kekTest);
        }

        // encrypt the test bytes
        try {
            kekTestC = cipher.doFinal(kekTestB);
        } catch (Exception e) {
            Debug.logError(e, module);
        }

        if (!kekOnly) {
            // public key (just Y)
            BigInteger y = publicKey.getY();
            byte[] yBytes = y.toByteArray();
            String yHex = StringUtil.toHexString(yBytes);
            buf.append("======== Begin Public Key (Y @ ").append(yBytes.length).append(" / ").append(yHex.length()).append(") ========\n");
            buf.append(yHex).append("\n");
            buf.append("======== End Public Key ========\n\n");
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Examples of javax.crypto.interfaces.DHPublicKey

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     * @throws NoSuchAlgorithmException
     * @throws InvalidAlgorithmParameterException
     */
    public KeyPair createKeys() throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, InvalidKeySpecException {
        // initialize the parameter spec
        DHPublicKey publicKey = (DHPublicKey) this.getValueLinkPublicKey();
        DHParameterSpec dhParamSpec = publicKey.getParams();
        //Debug.logInfo(dhParamSpec.getP().toString() + " / " + dhParamSpec.getG().toString(), module);

        // create the public/private key pair using parameters defined by valuelink
        KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DH");
        keyGen.initialize(dhParamSpec);
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Examples of javax.crypto.interfaces.DHPublicKey

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        // public key encoding test
        //
        byte[]              pubEnc = aKeyPair.getPublic().getEncoded();
        KeyFactory          keyFac = KeyFactory.getInstance("DH", "BC");
        X509EncodedKeySpec  pubX509 = new X509EncodedKeySpec(pubEnc);
        DHPublicKey         pubKey = (DHPublicKey)keyFac.generatePublic(pubX509);
        DHParameterSpec     spec = pubKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit public key encoding/decoding test failed on parameters");
        }

        if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key encoding/decoding test failed on y value");
        }

        //
        // public key serialisation test
        //
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
        ObjectOutputStream      oOut = new ObjectOutputStream(bOut);

        oOut.writeObject(aKeyPair.getPublic());

        ByteArrayInputStream   bIn = new ByteArrayInputStream(bOut.toByteArray());
        ObjectInputStream      oIn = new ObjectInputStream(bIn);

        pubKey = (DHPublicKey)oIn.readObject();
        spec = pubKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit public key serialisation test failed on parameters");
        }

        if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key serialisation test failed on y value");
        }

        //
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Examples of javax.crypto.interfaces.DHPublicKey

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            throw new IllegalStateException("Unable to create 128 byte keys in 100 tries");
        }

        // place holder for the keys
        DHPrivateKey privateKey = null;
        DHPublicKey publicKey = null;

        if (!kekOnly) {
            KeyPair keyPair = null;
            try {
                keyPair = this.createKeys();
            } catch (NoSuchAlgorithmException e) {
                Debug.logError(e, module);
            } catch (InvalidAlgorithmParameterException e) {
                Debug.logError(e, module);
            } catch (InvalidKeySpecException e) {
                Debug.logError(e, module);
            }

            if (keyPair != null) {
                publicKey = (DHPublicKey) keyPair.getPublic();
                privateKey = (DHPrivateKey) keyPair.getPrivate();

                if (publicKey == null || publicKey.getY().toByteArray().length != 128) {
                    // run again until we get a 128 byte public key for VL
                    return this.outputKeyCreation(loop, kekOnly, kekTest);
                }
            } else {
                Debug.log("Returned a null KeyPair", module);
                return this.outputKeyCreation(loop, kekOnly, kekTest);
            }
        } else {
            // use our existing private key to generate a KEK
            try {
                privateKey = (DHPrivateKey) this.getPrivateKey();
            } catch (Exception e) {
                Debug.logError(e, module);
            }
        }

        // the KEK
        byte[] kekBytes = null;
        try {
            kekBytes = this.generateKek(privateKey);
        } catch (NoSuchAlgorithmException e) {
            Debug.logError(e, module);
        } catch (InvalidKeySpecException e) {
            Debug.logError(e, module);
        } catch (InvalidKeyException e) {
            Debug.logError(e, module);
        }

        // the 3DES KEK value
        SecretKey loadedKek = this.getDesEdeKey(kekBytes);
        byte[] loadKekBytes = loadedKek.getEncoded();

        // test the KEK
        Cipher cipher = this.getCipher(this.getKekKey(), Cipher.ENCRYPT_MODE);
        byte[] kekTestB = { 0, 0, 0, 0, 0, 0, 0, 0 };
        byte[] kekTestC = new byte[0];
        if (kekTest != null) {
            kekTestB = StringUtil.fromHexString(kekTest);
        }

        // encrypt the test bytes
        try {
            kekTestC = cipher.doFinal(kekTestB);
        } catch (Exception e) {
            Debug.logError(e, module);
        }

        if (!kekOnly) {
            // public key (just Y)
            BigInteger y = publicKey.getY();
            byte[] yBytes = y.toByteArray();
            String yHex = StringUtil.toHexString(yBytes);
            buf.append("======== Begin Public Key (Y @ ").append(yBytes.length).append(" / ").append(yHex.length()).append(") ========\n");
            buf.append(yHex).append("\n");
            buf.append("======== End Public Key ========\n\n");
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