Examples with DigestAlgorithmIdentifierFinder org.bouncycastle.operator.DigestAlgorithmIdentifierFinder used on opensource projects

Example 1 with DigestAlgorithmIdentifierFinder

use of org.bouncycastle.operator.DigestAlgorithmIdentifierFinder in project xipki by xipki.

the class CmpCaClient method getContentVerifierProvider.

// method verifyProtection
public static ContentVerifierProvider getContentVerifierProvider(PublicKey publicKey) throws InvalidKeyException {
    SdkUtil.requireNonNull("publicKey", publicKey);
    String keyAlg = publicKey.getAlgorithm().toUpperCase();
    DigestAlgorithmIdentifierFinder digAlgFinder = new DefaultDigestAlgorithmIdentifierFinder();
    BcContentVerifierProviderBuilder builder;
    if ("RSA".equals(keyAlg)) {
        builder = new BcRSAContentVerifierProviderBuilder(digAlgFinder);
    } else if ("DSA".equals(keyAlg)) {
        builder = new BcDSAContentVerifierProviderBuilder(digAlgFinder);
    } else if ("EC".equals(keyAlg) || "ECDSA".equals(keyAlg)) {
        builder = new BcECContentVerifierProviderBuilder(digAlgFinder);
    } else {
        throw new InvalidKeyException("unknown key algorithm of the public key " + keyAlg);
    }
    AsymmetricKeyParameter keyParam;
    if (publicKey instanceof RSAPublicKey) {
        RSAPublicKey rsaKey = (RSAPublicKey) publicKey;
        keyParam = new RSAKeyParameters(false, rsaKey.getModulus(), rsaKey.getPublicExponent());
    } else if (publicKey instanceof ECPublicKey) {
        keyParam = ECUtil.generatePublicKeyParameter(publicKey);
    } else if (publicKey instanceof DSAPublicKey) {
        keyParam = DSAUtil.generatePublicKeyParameter(publicKey);
    } else {
        throw new InvalidKeyException("unknown key " + publicKey.getClass().getName());
    }
    try {
        return builder.build(keyParam);
    } catch (OperatorCreationException ex) {
        throw new InvalidKeyException("could not build ContentVerifierProvider: " + ex.getMessage(), ex);
    }
}

Example 2 with DigestAlgorithmIdentifierFinder

use of org.bouncycastle.operator.DigestAlgorithmIdentifierFinder in project jruby-openssl by jruby.

the class SecurityHelper method verify.

static boolean verify(final X509CRL crl, final PublicKey publicKey, final boolean silent) throws NoSuchAlgorithmException, CRLException, InvalidKeyException, SignatureException {
    if (crl instanceof X509CRLObject) {
        final CertificateList crlList = (CertificateList) getCertificateList(crl);
        final AlgorithmIdentifier tbsSignatureId = crlList.getTBSCertList().getSignature();
        if (!crlList.getSignatureAlgorithm().equals(tbsSignatureId)) {
            if (silent)
                return false;
            throw new CRLException("Signature algorithm on CertificateList does not match TBSCertList.");
        }
        final Signature signature = getSignature(crl.getSigAlgName(), securityProvider);
        signature.initVerify(publicKey);
        signature.update(crl.getTBSCertList());
        if (!signature.verify(crl.getSignature())) {
            if (silent)
                return false;
            throw new SignatureException("CRL does not verify with supplied public key.");
        }
        return true;
    } else {
        try {
            final DigestAlgorithmIdentifierFinder digestAlgFinder = new DefaultDigestAlgorithmIdentifierFinder();
            final ContentVerifierProvider verifierProvider;
            if ("DSA".equalsIgnoreCase(publicKey.getAlgorithm())) {
                BigInteger y = ((DSAPublicKey) publicKey).getY();
                DSAParams params = ((DSAPublicKey) publicKey).getParams();
                DSAParameters parameters = new DSAParameters(params.getP(), params.getQ(), params.getG());
                AsymmetricKeyParameter dsaKey = new DSAPublicKeyParameters(y, parameters);
                verifierProvider = new BcDSAContentVerifierProviderBuilder(digestAlgFinder).build(dsaKey);
            } else {
                BigInteger mod = ((RSAPublicKey) publicKey).getModulus();
                BigInteger exp = ((RSAPublicKey) publicKey).getPublicExponent();
                AsymmetricKeyParameter rsaKey = new RSAKeyParameters(false, mod, exp);
                verifierProvider = new BcRSAContentVerifierProviderBuilder(digestAlgFinder).build(rsaKey);
            }
            return new X509CRLHolder(crl.getEncoded()).isSignatureValid(verifierProvider);
        } catch (OperatorException e) {
            throw new SignatureException(e);
        } catch (CertException e) {
            throw new SignatureException(e);
        }// can happen if the input is DER but does not match expected strucure
         catch (ClassCastException e) {
            throw new SignatureException(e);
        } catch (IOException e) {
            throw new SignatureException(e);
        }
    }
}