Package org.bouncycastle.crypto.params

Examples of org.bouncycastle.crypto.params.ParametersWithIV


        params = new KeyParameter(keyBytes);

        if (iv.readableBytes() > 0) {
            byte[] ivBytes = new byte[iv.readableBytes()];
            iv.readBytes(ivBytes);
            params = new ParametersWithIV(params, ivBytes);
        }

        this.cipher.init(encipher, params);
    }
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        pGen.init(
                PBEParametersGenerator.PKCS12PasswordToBytes(p),
                getSalt(),
                iCount);
       
        final ParametersWithIV params = (ParametersWithIV)pGen.generateDerivedParameters(192, 128);
        final SecretKeySpec   encKey = new SecretKeySpec(((KeyParameter)params.getParameters()).getKey(), "AES");
        final Cipher          c;
        c = Cipher.getInstance("AES/CBC/PKCS7Padding", "BC");
        c.init(Cipher.ENCRYPT_MODE, encKey, new IvParameterSpec(params.getIV()));
       
        final byte[]          enc = c.doFinal(in.getBytes("UTF-8"));
       
        final byte[] hex = Hex.encode(enc);
        return new String(hex);
View Full Code Here

    public AESCipher(boolean forEncryption, byte[] key, byte[] iv) {
        BlockCipher aes = new AESFastEngine();
        BlockCipher cbc = new CBCBlockCipher(aes);
        bp = new PaddedBufferedBlockCipher(cbc);
        KeyParameter kp = new KeyParameter(key);
        ParametersWithIV piv = new ParametersWithIV(kp, iv);
        bp.init(forEncryption, piv);
    }
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    {
        this.forEncryption = forEncryption;
    
        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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    {
        this.encrypting = true;
       
        if (params instanceof ParametersWithIV)
        {
                ParametersWithIV ivParam = (ParametersWithIV)params;
                byte[]      iv = ivParam.getIV();

                if (iv.length < IV.length)
                {
                    System.arraycopy(iv, 0, IV, IV.length - iv.length, iv.length);
                }
                else
                {
                    System.arraycopy(iv, 0, IV, 0, IV.length);
                }

                reset();

                cipher.init(true, ivParam.getParameters());
        }
        else
        {
                reset();
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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;
View Full Code Here

      }

      // 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++)
      {
View Full Code Here

      }
      */

      // Decrypt the cipher text with TRIPLedeS in CBC mode using the KEK
      // and an initialization vector (IV) of 0x4adda22c79e82105. Call the output TEMP3.
      ParametersWithIV param2 = new ParametersWithIV(this.param, IV2);

      this.engine.init(false, param2);

      byte TEMP3[] = new byte[inLen];

      System.arraycopy(in, inOff, TEMP3, 0, inLen);

      for (int i = 0; i < (TEMP3.length / engine.getBlockSize()); i++)
      {
         int currentBytePos = i * engine.getBlockSize();

         engine.processBlock(TEMP3, currentBytePos, TEMP3, currentBytePos);
      }

      // Reverse the order of the octets in TEMP3 and call the result TEMP2.
      byte[] TEMP2 = new byte[TEMP3.length];

      for (int i = 0; i < TEMP3.length; i++)
      {
         TEMP2[i] = TEMP3[TEMP3.length - (i + 1)];
      }

      // Decompose TEMP2 into IV, the first 8 octets, and TEMP1, the remaining octets.
      this.iv = new byte[8];

      byte[] TEMP1 = new byte[TEMP2.length - 8];

      System.arraycopy(TEMP2, 0, this.iv, 0, 8);
      System.arraycopy(TEMP2, 8, TEMP1, 0, TEMP2.length - 8);

      // Decrypt TEMP1 using TRIPLedeS in CBC mode using the KEK and the IV
      // found in the previous step. Call the result WKCKS.
      this.paramPlusIV = new ParametersWithIV(this.param, this.iv);

      this.engine.init(false, this.paramPlusIV);

      byte[] WKCKS = new byte[TEMP1.length];

View Full Code Here

    {
        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();
View Full Code Here

    {
        this.encrypting = forEncryption;

        if (params instanceof ParametersWithIV)
        {
          ParametersWithIV ivParam = (ParametersWithIV)params;
          byte[]           iv      = ivParam.getIV();
          System.arraycopy(iv, 0, IV, 0, IV.length);

          reset();
          cipher.init(true, ivParam.getParameters());
        }
    }
View Full Code Here

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