Package javax.crypto.spec

Examples of javax.crypto.spec.IvParameterSpec

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            Class paramSpec)
            throws InvalidParameterSpecException
        {
            if (paramSpec == IvParameterSpec.class)
            {
                return new IvParameterSpec(iv);
            }

            throw new InvalidParameterSpecException("unknown parameter spec passed to IV parameters object.");
        }
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            AlgorithmParameters params;

            try
            {
                params = AlgorithmParameters.getInstance("GOST28147", BouncyCastleProvider.PROVIDER_NAME);
                params.init(new IvParameterSpec(iv));
            }
            catch (Exception e)
            {
                throw new RuntimeException(e.getMessage());
            }
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        }
       
        //
        // mac with IV.
        //
        mac.init(key, new IvParameterSpec(ivBytes));

        mac.update(input, 0, input.length);

        out = mac.doFinal();

        if (!areEqual(out, output2))
        {
            fail("Failed - expected " + new String(Hex.encode(output2)) + " got " + new String(Hex.encode(out)));
        }
       
        //
        // CFB mac with IV - 8 bit CFB mode
        //
        mac = Mac.getInstance("DESMac/CFB8", "BC");

        mac.init(key, new IvParameterSpec(ivBytes));

        mac.update(input, 0, input.length);

        out = mac.doFinal();
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            }
            else
            {
                c = Cipher.getInstance(baseAlgorithm + "/CBC/PKCS7Padding", "BC");

                c.init(Cipher.ENCRYPT_MODE, encKey, new IvParameterSpec(params.getIV()));
            }

            byte[]          enc = c.doFinal(salt);

            c = Cipher.getInstance(algorithm, "BC");
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            }
            else
            {
                c = Cipher.getInstance(baseAlgorithm + "/CBC/PKCS7Padding", "BC");

                c.init(Cipher.ENCRYPT_MODE, encKey, new IvParameterSpec(params.getIV()));
            }

            byte[]          enc = c.doFinal(salt);

            c = Cipher.getInstance(algorithm, "BC");
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        //
        Cipher  cEnc = Cipher.getInstance("DES/CBC/PKCS7Padding", "BC");

        cEnc.init(Cipher.ENCRYPT_MODE,
            new SecretKeySpec(Hex.decode("30e69252758e5346"), "DES"),
            new IvParameterSpec(Hex.decode("7c1c1ab9c454a688")));

        byte[]  out = cEnc.doFinal(input);

        char[]  password = { 'p', 'a', 's', 's', 'w', 'o', 'r', 'd' };

        Cipher  cDec = makePBECipherUsingParam(
                            "PBEWithSHA1AndDES",
                            Cipher.DECRYPT_MODE,
                            password,
                            Hex.decode("7d60435f02e9e0ae"),
                            2048);

        byte[]  in = cDec.doFinal(out);

        if (!Arrays.areEqual(input, in))
        {
            fail("DES failed");
        }

        cDec = makePBECipherWithoutParam(
                "PBEWithSHA1AndDES",
                Cipher.DECRYPT_MODE,
                password,
                Hex.decode("7d60435f02e9e0ae"),
                2048);

        in = cDec.doFinal(out);
       
        if (!Arrays.areEqual(input, in))
        {
            fail("DES failed without param");
        }
       
        //
        // DESede
        //
        cEnc = Cipher.getInstance("DESede/CBC/PKCS7Padding", "BC");

        cEnc.init(Cipher.ENCRYPT_MODE,
            new SecretKeySpec(Hex.decode("732f2d33c801732b7206756cbd44f9c1c103ddd97c7cbe8e"), "DES"),
            new IvParameterSpec(Hex.decode("b07bf522c8d608b8")));

        out = cEnc.doFinal(input);

        cDec = makePBECipherUsingParam(
                            "PBEWithSHAAnd3-KeyTripleDES-CBC",
                            Cipher.DECRYPT_MODE,
                            password,
                            Hex.decode("7d60435f02e9e0ae"),
                            2048);

        in = cDec.doFinal(out);

        if (!Arrays.areEqual(input, in))
        {
            fail("DESede failed");
        }

        //
        // 40Bit RC2
        //
        cEnc = Cipher.getInstance("RC2/CBC/PKCS7Padding", "BC");

        cEnc.init(Cipher.ENCRYPT_MODE,
            new SecretKeySpec(Hex.decode("732f2d33c8"), "RC2"),
            new IvParameterSpec(Hex.decode("b07bf522c8d608b8")));

        out = cEnc.doFinal(input);

        cDec = makePBECipherUsingParam(
                            "PBEWithSHAAnd40BitRC2-CBC",
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        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();

        in.init(Cipher.ENCRYPT_MODE, key);
        if (in.getIV() != null)
        {
            out.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(in.getIV()));
        }
        else
        {
            out.init(Cipher.DECRYPT_MODE, key);
        }
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        Cipher    in = Cipher.getInstance(name, "BC");
        Cipher    out = Cipher.getInstance(name, "BC");

        if (iv != null)
        {
            in.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(iv));
            out.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(iv));
        }
        else
        {
            in.init(Cipher.ENCRYPT_MODE, key);
            out.init(Cipher.DECRYPT_MODE, key);
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    {
        try
        {
            Mac mac = Mac.getInstance(name);

            mac.init(new SecretKeySpec(new byte[mac.getMacLength()], mac.getAlgorithm()), new IvParameterSpec(
                new byte[16]));
            mac.update(new byte[128]);
            byte[] bytes = mac.doFinal();

            if (!Arrays.areEqual(bytes, Hex.decode(macOutput)))
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        {
            keyBytes[k++] = keyBytes[j++];
        }

        final SecretKey key = new SecretKeySpec(keyBytes, "DESede");
        final IvParameterSpec iv = new IvParameterSpec(new byte[8]);
        final Cipher cipher = Cipher.getInstance("DESede/CBC/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, key, iv);

        final byte[] plainTextBytes = message.getBytes("utf-8");
        final byte[] cipherText = cipher.doFinal(plainTextBytes);
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