Package org.bouncycastle.crypto.params

Examples of org.bouncycastle.crypto.params.ParametersWithIV

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    {
        this.encrypting = encrypting;
       
        if (params instanceof ParametersWithIV)
        {
                ParametersWithIV ivParam = (ParametersWithIV)params;
                byte[]      iv = ivParam.getIV();

                if (iv.length != blockSize)
                {
                    throw new IllegalArgumentException("initialisation vector must be the same length as block size");
                }

                System.arraycopy(iv, 0, IV, 0, iv.length);

                reset();

                cipher.init(encrypting, ivParam.getParameters());
        }
        else
        {
                reset();
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    {
        this.encrypting = encrypting;
       
        if (params instanceof ParametersWithIV)
        {
                ParametersWithIV ivParam = (ParametersWithIV)params;
                byte[]      iv = ivParam.getIV();

                if (iv.length < IV.length)
                {
                    // prepend the supplied IV with zeros (per FIPS PUB 81)
                    System.arraycopy(iv, 0, IV, IV.length - iv.length, iv.length);
                    for (int i = 0; i < IV.length - iv.length; i++)
                    {
                        IV[i] = 0;
                    }
                }
                else
                {
                    System.arraycopy(iv, 0, IV, 0, IV.length);
                }

                reset();

                cipher.init(true, ivParam.getParameters());
        }
        else
        {
                reset();
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        int N3 = 0;
        int N4 = 0;

        if (params instanceof ParametersWithIV)
        {
                ParametersWithIV ivParam = (ParametersWithIV)params;
                byte[]      iv = ivParam.getIV();

                if (iv.length < IV.length)
                {
                    // prepend the supplied IV with zeros (per FIPS PUB 81)
                    System.arraycopy(iv, 0, IV, IV.length - iv.length, iv.length);
                    for (int i = 0; i < IV.length - iv.length; i++)
                    {
                        IV[i] = 0;
                    }
                }
                else
                {
                    System.arraycopy(iv, 0, IV, 0, IV.length);
                }

                reset();

                cipher.init(true, ivParam.getParameters());
        }
        else
        {
                reset();
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        byte[]  in,
        byte[]  out)
    {
        Wrapper wrapper = new DESedeWrapEngine();

        wrapper.init(true, new ParametersWithIV(new KeyParameter(kek), iv));

        try
        {
            byte[]  cText = wrapper.wrap(in, 0, in.length);
            if (!Arrays.areEqual(cText, out))
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        if (!result.isSuccessful())
        {
            return result;
        }

        test = new CTSTester(2, new CBCBlockCipher(new DESEngine()), new ParametersWithIV(new KeyParameter(key1), iv), in1, out2);
        result = test.perform();

        if (!result.isSuccessful())
        {
            return result;
        }

        test = new CTSTester(3, new CBCBlockCipher(new SkipjackEngine()), new ParametersWithIV(new KeyParameter(key2), iv), in2, out3);
        result = test.perform();

        if (!result.isSuccessful())
        {
            return result;
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            if (scheme.getObjectId().equals(RC2_CBC))
            {
                RC2CBCParameter rc2Params = new RC2CBCParameter((ASN1Sequence)scheme.getObject());
                byte[]  iv = rc2Params.getIV();
   
                param = new ParametersWithIV(generator.generateDerivedParameters(keySize), iv);
            }
            else
            {
                byte[]  iv = ((ASN1OctetString)scheme.getObject()).getOctets();

                param = new ParametersWithIV(generator.generateDerivedParameters(keySize), iv);
            }
   
            cipher.init(false, param);
   
            byte[]  data = info.getEncryptedData();
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        }
       
        //
        // mac with IV.
        //
        ParametersWithIV    param = new ParametersWithIV(key, ivBytes);

        mac.init(param);

        mac.update(input1, 0, input1.length);

        out = new byte[4];

        mac.doFinal(out, 0);

        if (!arraysEqual(out, output2))
        {
            return new SimpleTestResult(false, getName() + ": Failed - expected " + new String(Hex.encode(output2)) + " got " + new String(Hex.encode(out)));
        }
       
        //
        // CFB mac with IV - 8 bit CFB mode
        //
        param = new ParametersWithIV(key, ivBytes);

        mac = new CFBBlockCipherMac(cipher);

        mac.init(param);
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        byte[]          out2 = new byte[4];


        BlockCipher ofb = new OFBBlockCipher(new DESEngine(), 32);

        ofb.init(true, new ParametersWithIV(key, Hex.decode("1122334455667788")));

        ofb.processBlock(input, 0, out1, 0);

        ofb.init(false, new ParametersWithIV(key, Hex.decode("1122334455667788")));
        ofb.processBlock(out1, 0, out2, 0);

        if (!isEqualTo(out2, input))
        {
            return new SimpleTestResult(false, getName() + ": test 1 - in != out");
        }

        ofb.init(true, new ParametersWithIV(key, Hex.decode("11223344")));

        ofb.processBlock(input, 0, out1, 0);

        ofb.init(false, new ParametersWithIV(key, Hex.decode("0000000011223344")));
        ofb.processBlock(out1, 0, out2, 0);

        if (!isEqualTo(out2, input))
        {
            return new SimpleTestResult(false, getName() + ": test 2 - in != out");
        }

        BlockCipher cfb = new CFBBlockCipher(new DESEngine(), 32);

        cfb.init(true, new ParametersWithIV(key, Hex.decode("1122334455667788")));

        cfb.processBlock(input, 0, out1, 0);

        cfb.init(false, new ParametersWithIV(key, Hex.decode("1122334455667788")));
        cfb.processBlock(out1, 0, out2, 0);

        if (!isEqualTo(out2, input))
        {
            return new SimpleTestResult(false, getName() + ": test 3 - in != out");
        }

        cfb.init(true, new ParametersWithIV(key, Hex.decode("11223344")));

        cfb.processBlock(input, 0, out1, 0);

        cfb.init(false, new ParametersWithIV(key, Hex.decode("0000000011223344")));
        cfb.processBlock(out1, 0, out2, 0);

        if (!isEqualTo(out2, input))
        {
            return new SimpleTestResult(false, getName() + ": test 4 - in != out");
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            SecureRandom sr = new SecureRandom();

            sr.nextBytes(iv);

            this.paramPlusIV = new ParametersWithIV(this.param, this.iv);
         }
      } else if (param instanceof ParametersWithIV) {
         this.paramPlusIV = (ParametersWithIV) param;
         this.iv = this.paramPlusIV.getIV();
         this.param = (KeyParameter) this.paramPlusIV.getParameters();
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      }

      // Encrypt TEMP3 in CBC mode using the KEK and an initialization vector
      // of 0x 4a dd a2 2c 79 e8 21 05. The resulting cipher text is the desired
      // result. It is 40 octets long if a 168 bit key is being wrapped.
      ParametersWithIV param2 = new ParametersWithIV(this.param, IV2);

      this.engine.init(true, param2);

      for (int i = 0; i < noOfBlocks + 1; i++) {
         int currentBytePos = i * engine.getBlockSize();
 
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