Package org.bouncycastle.crypto

Examples of org.bouncycastle.crypto.Digest

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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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     *
     **/
    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.toASN1Primitive());
        this.certserno = new ASN1Integer(serialNumber);
    }
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        return new SubjectKeyIdentifier(id);
    }

    private static byte[] getDigest(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);
        return resBuf;
    }
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    private void initFromSpec(
        OAEPParameterSpec pSpec)
        throws NoSuchPaddingException
    {
        MGF1ParameterSpec mgfParams = (MGF1ParameterSpec)pSpec.getMGFParameters();
        Digest digest = DigestFactory.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 = DigestFactory.getDigest(spec.getDigestAlgorithm());

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

                MGF1ParameterSpec mgfParams = (MGF1ParameterSpec)spec.getMGFParameters();
                Digest mgfDigest = DigestFactory.getDigest(mgfParams.getDigestAlgorithm());
               
                if (mgfDigest == null)
                {
                    throw new InvalidAlgorithmParameterException("no match on MGF digest algorithm: "+ mgfParams.getDigestAlgorithm());
                }
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        TlsUtils.writeOpaque8(publicBytes, buf);

        byte[] digestInput = buf.toByteArray();

        Digest d = new CombinedHash();
        SecurityParameters securityParameters = context.getSecurityParameters();
        d.update(securityParameters.clientRandom, 0, securityParameters.clientRandom.length);
        d.update(securityParameters.serverRandom, 0, securityParameters.serverRandom.length);
        d.update(digestInput, 0, digestInput.length);

        byte[] hash = new byte[d.getDigestSize()];
        d.doFinal(hash, 0);

        byte[] sigBytes = serverCredentials.generateCertificateSignature(hash);
        /*
         * TODO RFC 5246 4.7. digitally-signed element needs SignatureAndHashAlgorithm prepended
         * from TLS 1.2
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    private void initFromSpec(
        OAEPParameterSpec pSpec)
        throws NoSuchPaddingException
    {
        MGF1ParameterSpec   mgfParams = (MGF1ParameterSpec)pSpec.getMGFParameters();
        Digest              digest = DigestFactory.getDigest(mgfParams.getDigestAlgorithm());
       
        if (digest == null)
        {
            throw new NoSuchPaddingException("no match on OAEP constructor for digest algorithm: "+ mgfParams.getDigestAlgorithm());
        }
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            if (!DigestFactory.isSameDigest(mgfParams.getDigestAlgorithm(), newParamSpec.getDigestAlgorithm()))
            {
                throw new InvalidParameterException("digest algorithm for MGF should be the same as for PSS parameters.");
            }
           
            Digest newDigest = DigestFactory.getDigest(mgfParams.getDigestAlgorithm());
           
            if (newDigest == null)
            {
                throw new InvalidParameterException("no match on MGF digest algorithm: "+ mgfParams.getDigestAlgorithm());
            }
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Related Classes of org.bouncycastle.crypto.Digest

  • com.nimbusds.jose.crypto.ECDSAProvider
  • com.nimbusds.jose.crypto.ECDSASigner
  • com.nimbusds.jose.crypto.ECDSAVerifier
  • org.bouncycastle.asn1.x509.AuthorityKeyIdentifier
  • org.bouncycastle.asn1.x509.SubjectKeyIdentifier
  • org.bouncycastle.crypto.examples.JPAKEExample
  • org.bouncycastle.crypto.generators.DSAParametersGenerator
  • org.bouncycastle.crypto.test.ISO9796Test
  • org.bouncycastle.crypto.test.MD2DigestTest
  • org.bouncycastle.crypto.test.MD4DigestTest
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