Package org.bouncycastle2.crypto.params

Examples of org.bouncycastle2.crypto.params.KeyParameter

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            throw new IllegalArgumentException(
                "VMPC-MAC Init parameters must include an IV");
        }

        ParametersWithIV ivParams = (ParametersWithIV) params;
        KeyParameter key = (KeyParameter) ivParams.getParameters();

        if (!(ivParams.getParameters() instanceof KeyParameter))
        {
            throw new IllegalArgumentException(
                "VMPC-MAC Init parameters must include a key");
        }

        this.workingIV = ivParams.getIV();

        if (workingIV == null || workingIV.length < 1 || workingIV.length > 768)
        {
            throw new IllegalArgumentException(
                "VMPC-MAC requires 1 to 768 bytes of IV");
        }

        this.workingKey = key.getKey();

        reset();

    }
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    }

    //Encrypt function, ECB mode
    private void E(byte[] key, byte[] s, int sOff, byte[] in, int inOff)
    {
        cipher.init(true, new KeyParameter(key));
       
        cipher.processBlock(in, inOff, s, sOff);
    }
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    {
        keySize = keySize / 8;

        byte[]  dKey = generateDerivedKey(keySize);

        return new KeyParameter(dKey, 0, keySize);
    }
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        keySize = keySize / 8;
        ivSize = ivSize / 8;

        byte[]  dKey = generateDerivedKey(keySize + ivSize);

        return new ParametersWithIV(new KeyParameter(dKey, 0, keySize), dKey, keySize, ivSize);
    }
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        byte[]  iBuf,
        byte[]  out,
        int     outOff)
    {
        byte[]              state = new byte[hMac.getMacSize()];
        CipherParameters    param = new KeyParameter(P);

        hMac.init(param);

        if (S != null)
        {
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    {
        keySize = keySize / 8;

        byte[]  dKey = generateDerivedKey(keySize);

        return new KeyParameter(dKey, 0, keySize);
    }
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        keySize = keySize / 8;
        ivSize = ivSize / 8;

        byte[]  dKey = generateDerivedKey(keySize + ivSize);

        return new ParametersWithIV(new KeyParameter(dKey, 0, keySize), dKey, keySize, ivSize);
    }
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        // KeyParameter must contain a double or triple length DES key,
        // however the underlying cipher is a single DES. The middle and
        // right key are used only in the final step.

        KeyParameter kp = (KeyParameter)params;
        KeyParameter key1;
        byte[] keyvalue = kp.getKey();

        if (keyvalue.length == 16)
        { // Double length DES key
            key1 = new KeyParameter(keyvalue, 0, 8);
            this.lastKey2 = new KeyParameter(keyvalue, 8, 8);
            this.lastKey3 = key1;
        }
        else if (keyvalue.length == 24)
        { // Triple length DES key
            key1 = new KeyParameter(keyvalue, 0, 8);
            this.lastKey2 = new KeyParameter(keyvalue, 8, 8);
            this.lastKey3 = new KeyParameter(keyvalue, 16, 8);
        }
        else
        {
            throw new IllegalArgumentException(
                    "Key must be either 112 or 168 bit long");
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    {
        OpenSSLPBEParametersGenerator   pGen = new OpenSSLPBEParametersGenerator();

        pGen.init(PBEParametersGenerator.PKCS5PasswordToBytes(password), salt);

        KeyParameter keyParam;
        keyParam = (KeyParameter) pGen.generateDerivedParameters(keyLength * 8);
        byte[] key = keyParam.getKey();
        if (des2 && key.length >= 24)
        {
            // For DES2, we must copy first 8 bytes into the last 8 bytes.
            System.arraycopy(key, 0, key, 16, 8);
        }
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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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Related Classes of org.bouncycastle2.crypto.params.KeyParameter

  • org.bouncycastle2.asn1.ASN1InputStream
  • org.bouncycastle2.asn1.ASN1Sequence
  • org.bouncycastle2.asn1.ASN1TaggedObject
  • org.bouncycastle2.asn1.cryptopro.GOST3410PublicKeyAlgParameters
  • org.bouncycastle2.asn1.DERObject
  • org.bouncycastle2.asn1.DERObjectIdentifier
  • org.bouncycastle2.asn1.DEROctetString
  • org.bouncycastle2.asn1.pkcs.RSAPrivateKeyStructure
  • org.bouncycastle2.asn1.x509.RSAPublicKeyStructure
  • org.bouncycastle2.bcpg.sig.PreferredAlgorithms
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