Package org.bouncycastle2.crypto

Examples of org.bouncycastle2.crypto.Digest

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            this(256);
        }

        public KeyGen(int keySize)
        {
            super("Camellia", keySize, new CipherKeyGenerator());
        }
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    public static class KeyGen
        extends JCEKeyGenerator
    {
        public KeyGen()
        {
            super("Grainv1", 80, new CipherKeyGenerator());
        }
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        Key                     key,
        AlgorithmParameterSpec  params,
        SecureRandom            random)
    throws InvalidKeyException, InvalidAlgorithmParameterException
    {
        CipherParameters        param;

        //
        // a note on iv's - if ivLength is zero the IV gets ignored (we don't use it).
        //
        if (key instanceof JCEPBEKey)
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    private void initFromSpec(
        OAEPParameterSpec pSpec)
        throws NoSuchPaddingException
    {
        MGF1ParameterSpec   mgfParams = (MGF1ParameterSpec)pSpec.getMGFParameters();
        Digest              digest = JCEDigestUtil.getDigest(mgfParams.getDigestAlgorithm());
       
        if (digest == null)
        {
            throw new NoSuchPaddingException("no match on OAEP constructor for digest algorithm: "+ mgfParams.getDigestAlgorithm());
        }
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                if (!(spec.getMGFParameters() instanceof MGF1ParameterSpec))
                {
                    throw new InvalidAlgorithmParameterException("unkown MGF parameters");
                }
   
                Digest digest = JCEDigestUtil.getDigest(spec.getDigestAlgorithm());

                if (digest == null)
                {
                    throw new InvalidAlgorithmParameterException("no match on digest algorithm: "+ spec.getDigestAlgorithm());
                }

                MGF1ParameterSpec mgfParams = (MGF1ParameterSpec)spec.getMGFParameters();
                Digest mgfDigest = JCEDigestUtil.getDigest(mgfParams.getDigestAlgorithm());
               
                if (mgfDigest == null)
                {
                    throw new InvalidAlgorithmParameterException("no match on MGF digest algorithm: "+ mgfParams.getDigestAlgorithm());
                }
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    private void initFromSpec(
        OAEPParameterSpec pSpec)
        throws NoSuchPaddingException
    {
        MGF1ParameterSpec   mgfParams = (MGF1ParameterSpec)pSpec.getMGFParameters();
        Digest              digest = JCEDigestUtil.getDigest(mgfParams.getDigestAlgorithm());
       
        if (digest == null)
        {
            throw new NoSuchPaddingException("no match on OAEP constructor for digest algorithm: "+ mgfParams.getDigestAlgorithm());
        }
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     *
     **/
    public AuthorityKeyIdentifier(
        SubjectPublicKeyInfo    spki)
    {
        Digest  digest = new SHA1Digest();
        byte[]  resBuf = new byte[digest.getDigestSize()];

        byte[] bytes = spki.getPublicKeyData().getBytes();
        digest.update(bytes, 0, bytes.length);
        digest.doFinal(resBuf, 0);
        this.keyidentifier = new DEROctetString(resBuf);
    }
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    public AuthorityKeyIdentifier(
        SubjectPublicKeyInfo    spki,
        GeneralNames            name,
        BigInteger              serialNumber)
    {
        Digest  digest = new SHA1Digest();
        byte[]  resBuf = new byte[digest.getDigestSize()];

        byte[] bytes = spki.getPublicKeyData().getBytes();
        digest.update(bytes, 0, bytes.length);
        digest.doFinal(resBuf, 0);

        this.keyidentifier = new DEROctetString(resBuf);
        this.certissuer = GeneralNames.getInstance(name.toASN1Object());
        this.certserno = new DERInteger(serialNumber);
    }
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            if (!JCEDigestUtil.isSameDigest(mgfParams.getDigestAlgorithm(), newParamSpec.getDigestAlgorithm()))
            {
                throw new InvalidParameterException("digest algorithm for MGF should be the same as for PSS parameters.");
            }
           
            Digest newDigest = JCEDigestUtil.getDigest(mgfParams.getDigestAlgorithm());
           
            if (newDigest == null)
            {
                throw new InvalidParameterException("no match on MGF digest algorithm: "+ mgfParams.getDigestAlgorithm());
            }
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            }

            Cipher cipher = this.makePBECipher(cipherAlg, Cipher.DECRYPT_MODE, password, salt, iterationCount);
            CipherInputStream cIn = new CipherInputStream(dIn, cipher);

            Digest dig = new SHA1Digest();
            DigestInputStream  dgIn = new DigestInputStream(cIn, dig);
   
            this.loadStore(dgIn);

            // Finalise our digest calculation
            byte[] hash = new byte[dig.getDigestSize()];
            dig.doFinal(hash, 0);

            // TODO Should this actually be reading the remainder of the stream?
            // Read the original digest from the stream
            byte[] oldHash = new byte[dig.getDigestSize()];
            Streams.readFully(cIn, oldHash);

            if (!Arrays.constantTimeAreEqual(hash, oldHash))
            {
                table.clear();
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Related Classes of org.bouncycastle2.crypto.Digest

  • 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.AuthorityKeyIdentifier
  • org.bouncycastle2.asn1.x509.RSAPublicKeyStructure
  • org.bouncycastle2.bcpg.sig.PreferredAlgorithms
  • org.bouncycastle2.crypto.BufferedBlockCipher
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