Package org.bouncycastle2.crypto.params

Examples of org.bouncycastle2.crypto.params.ParametersWithSBox

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        }
        else if (params instanceof IvParameterSpec)
        {
            if (ivLength != 0)
            {
                param = new ParametersWithIV(new KeyParameter(key.getEncoded()), ((IvParameterSpec)params).getIV());
                ivParam = (ParametersWithIV)param;
            }
            else
            {
                param = new KeyParameter(key.getEncoded());
            }
        }
        else if (params instanceof RC2ParameterSpec)
        {
            RC2ParameterSpec    rc2Param = (RC2ParameterSpec)params;

            param = new RC2Parameters(key.getEncoded(), ((RC2ParameterSpec)params).getEffectiveKeyBits());

            if (rc2Param.getIV() != null && ivLength != 0)
            {
                param = new ParametersWithIV(param, rc2Param.getIV());
                ivParam = (ParametersWithIV)param;
            }
        }
        else if (params instanceof RC5ParameterSpec)
        {
            RC5ParameterSpec    rc5Param = (RC5ParameterSpec)params;

            param = new RC5Parameters(key.getEncoded(), ((RC5ParameterSpec)params).getRounds());
            if (rc5Param.getWordSize() != 32)
            {
                throw new IllegalArgumentException("can only accept RC5 word size 32 (at the moment...)");
            }
            if ((rc5Param.getIV() != null) && (ivLength != 0))
            {
                param = new ParametersWithIV(param, rc5Param.getIV());
                ivParam = (ParametersWithIV)param;
            }
        }
        else
        {
            throw new InvalidAlgorithmParameterException("unknown parameter type.");
        }

        if ((ivLength != 0) && !(param instanceof ParametersWithIV))
        {
            if (random == null)
            {
                random = new SecureRandom();
            }

            if ((opmode == Cipher.ENCRYPT_MODE) || (opmode == Cipher.WRAP_MODE))
            {
                byte[]  iv = new byte[ivLength];

                random.nextBytes(iv);
                param = new ParametersWithIV(param, iv);
                ivParam = (ParametersWithIV)param;
            }
            else
            {
                throw new InvalidAlgorithmParameterException("no IV set when one expected");
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        }
        else if (params instanceof GOST28147ParameterSpec)
        {
            GOST28147ParameterSpec    gost28147Param = (GOST28147ParameterSpec)params;

            param = new ParametersWithSBox(
                       new KeyParameter(key.getEncoded()), ((GOST28147ParameterSpec)params).getSbox());

            if (gost28147Param.getIV() != null && ivLength != 0)
            {
                param = new ParametersWithIV(param, gost28147Param.getIV());
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        boolean           forEncryption,
        CipherParameters  params)
    {
        if (params instanceof ParametersWithSBox)
        {
            ParametersWithSBox   param = (ParametersWithSBox)params;

            //
            // Set the S-Box
            //
            System.arraycopy(param.getSBox(), 0, this.S, 0, param.getSBox().length);
           
            //
            // set key if there is one
            //
            if (param.getParameters() != null)
            {
                workingKey = generateWorkingKey(forEncryption,
                        ((KeyParameter)param.getParameters()).getKey());
            }
        }
        else if (params instanceof KeyParameter)
        {
            workingKey = generateWorkingKey(forEncryption,
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    /**
     * Standard constructor
     */
    public GOST3411Digest()
    {
        cipher.init(true, new ParametersWithSBox(null, GOST28147Engine.getSBox("D-A")));
       
        reset();
    }
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     * Copy constructor.  This will copy the state of the provided
     * message digest.
     */
    public GOST3411Digest(GOST3411Digest t)
    {
        cipher.init(true, new ParametersWithSBox(null, GOST28147Engine.getSBox("D-A")));
       
        reset();

        System.arraycopy(t.H, 0, this.H, 0, t.H.length);
        System.arraycopy(t.L, 0, this.L, 0, t.L.length);
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    {
        reset();
        buf = new byte[blockSize];
        if (params instanceof ParametersWithSBox)
        {
            ParametersWithSBox   param = (ParametersWithSBox)params;

            //
            // Set the S-Box
            //
            System.arraycopy(param.getSBox(), 0, this.S, 0, param.getSBox().length);

            //
            // set key if there is one
            //
            if (param.getParameters() != null)
            {
                workingKey = generateWorkingKey(((KeyParameter)param.getParameters()).getKey());
            }
        }
        else if (params instanceof KeyParameter)
        {
            workingKey = generateWorkingKey(((KeyParameter)params).getKey());
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        }
        else if (params instanceof RC2ParameterSpec)
        {
            RC2ParameterSpec    rc2Param = (RC2ParameterSpec)params;

            param = new RC2Parameters(key.getEncoded(), ((RC2ParameterSpec)params).getEffectiveKeyBits());

            if (rc2Param.getIV() != null && ivLength != 0)
            {
                param = new ParametersWithIV(param, rc2Param.getIV());
                ivParam = (ParametersWithIV)param;
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        }
        else if (params instanceof RC5ParameterSpec)
        {
            RC5ParameterSpec    rc5Param = (RC5ParameterSpec)params;

            param = new RC5Parameters(key.getEncoded(), ((RC5ParameterSpec)params).getRounds());
            if (rc5Param.getWordSize() != 32)
            {
                throw new IllegalArgumentException("can only accept RC5 word size 32 (at the moment...)");
            }
            if ((rc5Param.getIV() != null) && (ivLength != 0))
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    }
   
    static RSAKeyParameters generatePublicKeyParameter(
        RSAPublicKey    key)
    {
        return new RSAKeyParameters(false, key.getModulus(), key.getPublicExponent());

    }
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        }
        else
        {
            RSAPrivateKey    k = key;

            return new RSAKeyParameters(true, k.getModulus(), k.getPrivateExponent());
        }
    }
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Related Classes of org.bouncycastle2.crypto.params.ParametersWithSBox

  • org.bouncycastle2.asn1.ASN1InputStream
  • org.bouncycastle2.asn1.ASN1Sequence
  • org.bouncycastle2.asn1.cryptopro.GOST3410PublicKeyAlgParameters
  • org.bouncycastle2.asn1.DERObjectIdentifier
  • org.bouncycastle2.asn1.DEROctetString
  • org.bouncycastle2.asn1.pkcs.RSAPrivateKeyStructure
  • org.bouncycastle2.asn1.x509.RSAPublicKeyStructure
  • org.bouncycastle2.bcpg.sig.PreferredAlgorithms
  • org.bouncycastle2.crypto.BufferedBlockCipher
  • org.bouncycastle2.crypto.CipherParameters
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