Package javax.crypto.spec

Examples of javax.crypto.spec.DESKeySpec

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            KeySpec keySpec)
        throws InvalidKeySpecException
        {
            if (keySpec instanceof DESKeySpec)
            {
                DESKeySpec desKeySpec = (DESKeySpec)keySpec;
                return new SecretKeySpec(desKeySpec.getKey(), "DES");
            }

            return super.engineGenerateSecret(keySpec);
        }
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        int len = password.length();
        if (len > 14)
            len = 14;
        System.arraycopy(pwb, 0, pwb1, 0, len); /* Zero padded */

        DESKeySpec dks1 = new DESKeySpec(makeDesKey(pwb1, 0));
        DESKeySpec dks2 = new DESKeySpec(makeDesKey(pwb1, 7));

        SecretKey key1 = fac.generateSecret(dks1);
        SecretKey key2 = fac.generateSecret(dks2);
        cipher.init(Cipher.ENCRYPT_MODE, key1);
        byte[] out1 = cipher.doFinal(magic, 0, 8);
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     * each key and return the three results in a sequential [].
     */
    private byte[] calcResponse(byte[] key, byte[] text)
        throws GeneralSecurityException {
        assert key.length == 21;
        DESKeySpec dks1 = new DESKeySpec(makeDesKey(key, 0));
        DESKeySpec dks2 = new DESKeySpec(makeDesKey(key, 7));
        DESKeySpec dks3 = new DESKeySpec(makeDesKey(key, 14));
        SecretKey key1 = fac.generateSecret(dks1);
        SecretKey key2 = fac.generateSecret(dks2);
        SecretKey key3 = fac.generateSecret(dks3);
        cipher.init(Cipher.ENCRYPT_MODE, key1);
        byte[] out1 = cipher.doFinal(text, 0, 8);
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        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
        Key key = keyFactory.generatePrivate(keySpec);       
        Cipher dcipher = Cipher.getInstance("RSA");       
        dcipher.init(Cipher.DECRYPT_MODE, key);       
        byte[] desKeyData = dcipher.doFinal(desKeyEncryption);
        DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
        SecretKeyFactory desKeyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey desKey = desKeyFactory.generateSecret(desKeySpec);

        // create desEncrypter with decrypted desKey
        DESEncrypter desEncrypter = new DESEncrypter();
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        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
        Key key = keyFactory.generatePrivate(keySpec);       
        Cipher dcipher = Cipher.getInstance("RSA");       
        dcipher.init(Cipher.DECRYPT_MODE, key);       
        byte[] desKeyData = dcipher.doFinal(Base64.decode(input.getDESKey()));
        DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
        SecretKeyFactory desKeyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey desKey = desKeyFactory.generateSecret(desKeySpec);

        // create desEncrypter with decrypted desKey
        DESEncrypter desEncrypter = new DESEncrypter();
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            byte[] keyAsBytes = encryptionKey.getBytes( UNICODE_FORMAT );
           
            if ( encryptionScheme.equals( DESEDE_ENCRYPTION_SCHEME) ) {
                keySpec = new DESedeKeySpec( keyAsBytes );
            } else if ( encryptionScheme.equals( DES_ENCRYPTION_SCHEME ) ) {
                keySpec = new DESKeySpec( keyAsBytes );
            } else {
                throw new IllegalArgumentException( "Encryption scheme not supported: " + encryptionScheme );
            }
           
            keyFactory = SecretKeyFactory.getInstance( encryptionScheme );
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                secKey_ = generatePrivateKey(targetPublicKey);
                SecretKeySpec desKey = new SecretKeySpec(secKey_, "DES");
                key = desKey;
            } else {
                //use this encryption key to initiate a SecretKeySpec object
                DESKeySpec desKey = new DESKeySpec(secKey_);
                if (secretKeyFactory_ == null) {
                    secretKeyFactory_ =
                        SecretKeyFactory.getInstance("DES", providerName);
                }
                key = secretKeyFactory_.generateSecret(desKey);
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                secKey_ = generatePrivateKey(targetPublicKey);
                SecretKeySpec desKey = new SecretKeySpec(secKey_, "DES");
                key = desKey;
            } else {
                //use this encryption key to initiate a SecretKeySpec object
                DESKeySpec desKey = new DESKeySpec(secKey_);
                if (secretKeyFactory_ == null) {
                    secretKeyFactory_ =
                        SecretKeyFactory.getInstance("DES", providerName);
                }
                key = secretKeyFactory_.generateSecret(desKey);
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        int len = password.length();
        if (len > 14)
            len = 14;
        System.arraycopy(pwb, 0, pwb1, 0, len); /* Zero padded */

        DESKeySpec dks1 = new DESKeySpec(makeDesKey(pwb1, 0));
        DESKeySpec dks2 = new DESKeySpec(makeDesKey(pwb1, 7));

        SecretKey key1 = fac.generateSecret(dks1);
        SecretKey key2 = fac.generateSecret(dks2);
        cipher.init(Cipher.ENCRYPT_MODE, key1);
        byte[] out1 = cipher.doFinal(magic, 0, 8);
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     * each key and return the three results in a sequential [].
     */
    private byte[] calcResponse(byte[] key, byte[] text)
        throws GeneralSecurityException {
        assert key.length == 21;
        DESKeySpec dks1 = new DESKeySpec(makeDesKey(key, 0));
        DESKeySpec dks2 = new DESKeySpec(makeDesKey(key, 7));
        DESKeySpec dks3 = new DESKeySpec(makeDesKey(key, 14));
        SecretKey key1 = fac.generateSecret(dks1);
        SecretKey key2 = fac.generateSecret(dks2);
        SecretKey key3 = fac.generateSecret(dks3);
        cipher.init(Cipher.ENCRYPT_MODE, key1);
        byte[] out1 = cipher.doFinal(text, 0, 8);
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