Example usage for org.bouncycastle.asn1.x509 DigestInfo getDigest

List of usage examples for org.bouncycastle.asn1.x509 DigestInfo getDigest

  1. HOME
  2. Java
  3. org.bouncycastle
  4. org.bouncycastle.asn1.x509.*
  5. DigestInfo
  6. getDigest

Introduction

In this page you can find the example usage for org.bouncycastle.asn1.x509 DigestInfo getDigest.

Prototype

public byte[] getDigest()

Source Link

Usage

From source file:be.fedict.commons.eid.consumer.BeIDIntegrity.java

License:Open Source License

private boolean __verifyNonRepSignature(final byte[] expectedDigestValue, final byte[] signatureValue,
        final X509Certificate certificate) throws NoSuchAlgorithmException, NoSuchPaddingException,
        InvalidKeyException, IllegalBlockSizeException, BadPaddingException, IOException {
    final PublicKey publicKey = certificate.getPublicKey();

    final Cipher cipher = Cipher.getInstance("RSA");
    cipher.init(Cipher.DECRYPT_MODE, publicKey);
    final byte[] actualSignatureDigestInfoValue = cipher.doFinal(signatureValue);

    final ASN1InputStream asnInputStream = new ASN1InputStream(actualSignatureDigestInfoValue);
    final DigestInfo actualSignatureDigestInfo = new DigestInfo((ASN1Sequence) asnInputStream.readObject());
    asnInputStream.close();/*w ww .  j av  a  2 s  .  c  o m*/

    final byte[] actualDigestValue = actualSignatureDigestInfo.getDigest();
    return Arrays.equals(expectedDigestValue, actualDigestValue);
}

From source file:be.fedict.eid.applet.service.impl.handler.AuthenticationDataMessageHandler.java

License:Open Source License

public Object handleMessage(AuthenticationDataMessage message, Map<String, String> httpHeaders,
        HttpServletRequest request, HttpSession session) throws ServletException {
    LOG.debug("authentication data message received");

    if (null == message.authnCert) {
        /*//from  ww w  .j a v a 2s.  co  m
         * Can be the case for future (Kids) eID cards that have some
         * certificates missing.
         */
        String msg = "authentication certificate not present";
        LOG.warn(msg);
        throw new ServletException(msg);
    }
    byte[] signatureValue = message.signatureValue;
    LOG.debug("authn signing certificate subject: " + message.authnCert.getSubjectX500Principal());
    PublicKey signingKey = message.authnCert.getPublicKey();

    if (this.sessionIdChannelBinding) {
        checkSessionIdChannelBinding(message, request);
        if (null == this.serverCertificate) {
            LOG.warn("adviced to use in combination with server certificate channel binding");
        }
    }

    ChannelBindingService channelBindingService = this.channelBindingServiceLocator.locateService();
    if (null != this.serverCertificate || null != channelBindingService) {
        LOG.debug("using server certificate channel binding");
    }

    if (false == this.sessionIdChannelBinding && null == this.serverCertificate
            && null == channelBindingService) {
        LOG.warn("not using any secure channel binding");
    }

    byte[] challenge;
    try {
        challenge = AuthenticationChallenge.getAuthnChallenge(session, this.maxMaturity);
    } catch (SecurityException e) {
        AuditService auditService = this.auditServiceLocator.locateService();
        if (null != auditService) {
            String remoteAddress = request.getRemoteAddr();
            auditService.authenticationError(remoteAddress, message.authnCert);
        }
        throw new ServletException("security error: " + e.getMessage(), e);
    }

    byte[] serverCertificateClientPOV = null;
    try {
        if (null != message.serverCertificate) {
            serverCertificateClientPOV = message.serverCertificate.getEncoded();
        }
    } catch (CertificateEncodingException e) {
        throw new ServletException("server cert decoding error: " + e.getMessage(), e);
    }
    /*
     * We validate the authentication contract using the client-side
     * communicated server SSL certificate in case of secure channel
     * binding.
     */
    AuthenticationContract authenticationContract = new AuthenticationContract(message.saltValue, this.hostname,
            this.inetAddress, message.sessionId, serverCertificateClientPOV, challenge);
    byte[] toBeSigned;
    try {
        toBeSigned = authenticationContract.calculateToBeSigned();
    } catch (IOException e) {
        throw new ServletException("IO error: " + e.getMessage(), e);
    }

    try {
        Signature signature = Signature.getInstance("SHA1withRSA");
        signature.initVerify(signingKey);
        signature.update(toBeSigned);
        boolean result = signature.verify(signatureValue);
        if (false == result) {
            AuditService auditService = this.auditServiceLocator.locateService();
            if (null != auditService) {
                String remoteAddress = request.getRemoteAddr();
                auditService.authenticationError(remoteAddress, message.authnCert);
            }
            throw new SecurityException("authn signature incorrect");
        }
    } catch (NoSuchAlgorithmException e) {
        throw new SecurityException("algo error");
    } catch (InvalidKeyException e) {
        throw new SecurityException("authn key error");
    } catch (SignatureException e) {
        throw new SecurityException("signature error");
    }

    RequestContext requestContext = new RequestContext(session);
    String transactionMessage = requestContext.getTransactionMessage();
    if (null != transactionMessage) {
        LOG.debug("verifying TransactionMessage signature");
        byte[] transactionMessageSignature = message.transactionMessageSignature;
        if (null == transactionMessageSignature) {
            throw new SecurityException("missing TransactionMessage signature");
        }
        try {
            Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
            cipher.init(Cipher.DECRYPT_MODE, signingKey);
            byte[] signatureDigestInfoValue = cipher.doFinal(transactionMessageSignature);
            ASN1InputStream aIn = new ASN1InputStream(signatureDigestInfoValue);
            DigestInfo signatureDigestInfo = new DigestInfo((ASN1Sequence) aIn.readObject());
            if (false == PLAIN_TEXT_DIGEST_ALGO_OID
                    .equals(signatureDigestInfo.getAlgorithmId().getObjectId().getId())) {
                throw new SecurityException("TransactionMessage signature algo OID incorrect");
            }
            if (false == Arrays.equals(transactionMessage.getBytes(), signatureDigestInfo.getDigest())) {
                throw new SecurityException("signed TransactionMessage incorrect");
            }
            LOG.debug("TransactionMessage signature validated");
        } catch (Exception e) {
            LOG.error("error verifying TransactionMessage signature", e);
            AuditService auditService = this.auditServiceLocator.locateService();
            if (null != auditService) {
                String remoteAddress = request.getRemoteAddr();
                auditService.authenticationError(remoteAddress, message.authnCert);
            }
            throw new SecurityException("error verifying TransactionMessage signature: " + e.getMessage());
        }
    }

    /*
     * Secure channel binding verification.
     */
    if (null != channelBindingService) {
        X509Certificate serverCertificate = channelBindingService.getServerCertificate();
        if (null == serverCertificate) {
            LOG.warn("could not verify secure channel binding as the server does not know its identity yet");
        } else {
            if (false == serverCertificate.equals(message.serverCertificate)) {
                AuditService auditService = this.auditServiceLocator.locateService();
                if (null != auditService) {
                    String remoteAddress = request.getRemoteAddr();
                    auditService.authenticationError(remoteAddress, message.authnCert);
                }
                throw new SecurityException("secure channel binding identity mismatch");
            }
            LOG.debug("secure channel binding verified");
        }
    } else {
        if (null != this.serverCertificate) {
            if (false == this.serverCertificate.equals(message.serverCertificate)) {
                AuditService auditService = this.auditServiceLocator.locateService();
                if (null != auditService) {
                    String remoteAddress = request.getRemoteAddr();
                    auditService.authenticationError(remoteAddress, message.authnCert);
                }
                throw new SecurityException("secure channel binding identity mismatch");
            }
            LOG.debug("secure channel binding verified");
        }
    }

    AuthenticationService authenticationService = this.authenticationServiceLocator.locateService();
    List<X509Certificate> certificateChain = new LinkedList<X509Certificate>();
    certificateChain.add(message.authnCert);
    certificateChain.add(message.citizenCaCert);
    certificateChain.add(message.rootCaCert);
    try {
        authenticationService.validateCertificateChain(certificateChain);
    } catch (ExpiredCertificateSecurityException e) {
        return new FinishedMessage(ErrorCode.CERTIFICATE_EXPIRED);
    } catch (RevokedCertificateSecurityException e) {
        return new FinishedMessage(ErrorCode.CERTIFICATE_REVOKED);
    } catch (TrustCertificateSecurityException e) {
        return new FinishedMessage(ErrorCode.CERTIFICATE_NOT_TRUSTED);
    } catch (CertificateSecurityException e) {
        return new FinishedMessage(ErrorCode.CERTIFICATE);
    } catch (Exception e) {
        /*
         * We don't want to depend on the full JavaEE profile in this
         * artifact.
         */
        if ("javax.ejb.EJBException".equals(e.getClass().getName())) {
            Exception exception;
            try {
                Method getCausedByExceptionMethod = e.getClass().getMethod("getCausedByException",
                        new Class[] {});
                exception = (Exception) getCausedByExceptionMethod.invoke(e, new Object[] {});
            } catch (Exception e2) {
                LOG.debug("error: " + e.getMessage(), e);
                throw new SecurityException("error retrieving the root cause: " + e2.getMessage());
            }
            if (exception instanceof ExpiredCertificateSecurityException) {
                return new FinishedMessage(ErrorCode.CERTIFICATE_EXPIRED);
            }
            if (exception instanceof RevokedCertificateSecurityException) {
                return new FinishedMessage(ErrorCode.CERTIFICATE_REVOKED);
            }
            if (exception instanceof TrustCertificateSecurityException) {
                return new FinishedMessage(ErrorCode.CERTIFICATE_NOT_TRUSTED);
            }
            if (exception instanceof CertificateSecurityException) {
                return new FinishedMessage(ErrorCode.CERTIFICATE);
            }
        }
        throw new SecurityException("authn service error: " + e.getMessage());
    }

    String userId = UserIdentifierUtil.getUserId(message.authnCert);
    LOG.info("authenticated: " + userId + " @ " + request.getRemoteAddr());
    if (null != this.nrcidSecret) {
        userId = UserIdentifierUtil.getNonReversibleCitizenIdentifier(userId, this.nrcidOrgId, this.nrcidAppId,
                this.nrcidSecret);
    }
    /*
     * Some people state that you cannot use the national register number
     * without hashing. Problem is that hashing introduces hash collision
     * problems. The probability is very low, but what if it's your leg
     * they're cutting of because of a patient mismatch based on the SHA1 of
     * your national register number?
     */

    /*
     * Push authenticated used Id into the HTTP session.
     */
    session.setAttribute(AUTHENTICATED_USER_IDENTIFIER_SESSION_ATTRIBUTE, userId);

    EIdData eidData = (EIdData) session.getAttribute(IdentityDataMessageHandler.EID_SESSION_ATTRIBUTE);
    if (null == eidData) {
        eidData = new EIdData();
        session.setAttribute(IdentityDataMessageHandler.EID_SESSION_ATTRIBUTE, eidData);
    }
    eidData.identifier = userId;

    AuditService auditService = this.auditServiceLocator.locateService();
    if (null != auditService) {
        auditService.authenticated(userId);
    }

    boolean includeIdentity = requestContext.includeIdentity();
    boolean includeAddress = requestContext.includeAddress();
    boolean includeCertificates = requestContext.includeCertificates();
    boolean includePhoto = requestContext.includePhoto();

    /*
     * Also process the identity data in case it was requested.
     */
    if (includeIdentity) {
        if (null == message.identityData) {
            throw new ServletException("identity data not included while requested");
        }
    }
    if (includeAddress) {
        if (null == message.addressData) {
            throw new ServletException("address data not included while requested");
        }
    }
    if (includePhoto) {
        if (null == message.photoData) {
            throw new ServletException("photo data not included while requested");
        }
    }
    IdentityIntegrityService identityIntegrityService = this.identityIntegrityServiceLocator.locateService();
    if (null != identityIntegrityService) {
        if (null == message.rrnCertificate) {
            throw new ServletException("national registry certificate not included while requested");
        }
        List<X509Certificate> rrnCertificateChain = new LinkedList<X509Certificate>();
        rrnCertificateChain.add(message.rrnCertificate);
        rrnCertificateChain.add(message.rootCaCert);

        try {
            identityIntegrityService.checkNationalRegistrationCertificate(rrnCertificateChain);
        } catch (ExpiredCertificateSecurityException e) {
            return new FinishedMessage(ErrorCode.CERTIFICATE_EXPIRED);
        } catch (RevokedCertificateSecurityException e) {
            return new FinishedMessage(ErrorCode.CERTIFICATE_REVOKED);
        } catch (TrustCertificateSecurityException e) {
            return new FinishedMessage(ErrorCode.CERTIFICATE_NOT_TRUSTED);
        } catch (CertificateSecurityException e) {
            return new FinishedMessage(ErrorCode.CERTIFICATE);
        } catch (Exception e) {
            if ("javax.ejb.EJBException".equals(e.getClass().getName())) {
                Exception exception;
                try {
                    Method getCausedByExceptionMethod = e.getClass().getMethod("getCausedByException",
                            new Class[] {});
                    exception = (Exception) getCausedByExceptionMethod.invoke(e, new Object[] {});
                } catch (Exception e2) {
                    LOG.debug("error: " + e.getMessage(), e);
                    throw new SecurityException("error retrieving the root cause: " + e2.getMessage());
                }
                if (exception instanceof ExpiredCertificateSecurityException) {
                    return new FinishedMessage(ErrorCode.CERTIFICATE_EXPIRED);
                }
                if (exception instanceof RevokedCertificateSecurityException) {
                    return new FinishedMessage(ErrorCode.CERTIFICATE_REVOKED);
                }
                if (exception instanceof TrustCertificateSecurityException) {
                    return new FinishedMessage(ErrorCode.CERTIFICATE_NOT_TRUSTED);
                }
                if (exception instanceof CertificateSecurityException) {
                    return new FinishedMessage(ErrorCode.CERTIFICATE);
                }
            }
            throw new SecurityException("error checking the NRN certificate: " + e.getMessage(), e);
        }

        PublicKey rrnPublicKey = message.rrnCertificate.getPublicKey();
        if (includeIdentity) {
            if (null == message.identitySignatureData) {
                throw new ServletException("identity signature data not included while requested");
            }
            verifySignature(message.rrnCertificate.getSigAlgName(), message.identitySignatureData, rrnPublicKey,
                    request, message.identityData);
        }
        if (includeAddress) {
            if (null == message.addressSignatureData) {
                throw new ServletException("address signature data not included while requested");
            }
            byte[] addressFile = trimRight(message.addressData);
            verifySignature(message.rrnCertificate.getSigAlgName(), message.addressSignatureData, rrnPublicKey,
                    request, addressFile, message.identitySignatureData);
        }
    }
    if (includeIdentity) {
        Identity identity = TlvParser.parse(message.identityData, Identity.class);
        if (false == UserIdentifierUtil.getUserId(message.authnCert).equals(identity.nationalNumber)) {
            throw new ServletException("national number mismatch");
        }
        session.setAttribute(IdentityDataMessageHandler.IDENTITY_SESSION_ATTRIBUTE, identity);
        eidData.identity = identity;
        auditService = this.auditServiceLocator.locateService();
        if (null != auditService) {
            auditService.identified(identity.nationalNumber);
        }
    }
    if (includeAddress) {
        Address address = TlvParser.parse(message.addressData, Address.class);
        session.setAttribute(IdentityDataMessageHandler.ADDRESS_SESSION_ATTRIBUTE, address);
        eidData.address = address;
    }
    if (includePhoto) {
        if (includeIdentity) {
            byte[] expectedPhotoDigest = eidData.identity.photoDigest;
            byte[] actualPhotoDigest = digestPhoto(getDigestAlgo(expectedPhotoDigest.length),
                    message.photoData);
            if (false == Arrays.equals(expectedPhotoDigest, actualPhotoDigest)) {
                throw new ServletException("photo digest incorrect");
            }
        }
        session.setAttribute(IdentityDataMessageHandler.PHOTO_SESSION_ATTRIBUTE, message.photoData);
        eidData.photo = message.photoData;
    }
    if (includeCertificates) {
        if (includeIdentity) {
            eidData.certs = new EIdCertsData();
            eidData.certs.authn = message.authnCert;
            eidData.certs.ca = message.citizenCaCert;
            eidData.certs.root = message.rootCaCert;
            eidData.certs.sign = message.signCert;
        }
        session.setAttribute(IdentityDataMessageHandler.AUTHN_CERT_SESSION_ATTRIBUTE, message.authnCert);
        session.setAttribute(IdentityDataMessageHandler.CA_CERT_SESSION_ATTRIBUTE, message.citizenCaCert);
        session.setAttribute(IdentityDataMessageHandler.ROOT_CERT_SESSION_ATTRIBTUE, message.rootCaCert);
        session.setAttribute(IdentityDataMessageHandler.SIGN_CERT_SESSION_ATTRIBUTE, message.signCert);
    }

    if (this.includeDataFiles) {
        session.setAttribute(IdentityDataMessageHandler.EID_DATA_IDENTITY_SESSION_ATTRIBUTE,
                message.identityData);
        session.setAttribute(IdentityDataMessageHandler.EID_DATA_ADDRESS_SESSION_ATTRIBUTE,
                message.addressData);
    }

    AuthenticationSignatureService authenticationSignatureService = this.authenticationSignatureServiceLocator
            .locateService();
    if (null != authenticationSignatureService) {
        List<X509Certificate> authnCertificateChain;
        if (null != message.authnCert) {
            authnCertificateChain = new LinkedList<X509Certificate>();
            authnCertificateChain.add(message.authnCert);
            authnCertificateChain.add(message.citizenCaCert);
            authnCertificateChain.add(message.rootCaCert);
        } else {
            authnCertificateChain = null;
        }
        AuthenticationSignatureContext authenticationSignatureContext = new AuthenticationSignatureContextImpl(
                session);
        PreSignResult preSignResult = authenticationSignatureService.preSign(authnCertificateChain,
                authenticationSignatureContext);
        if (null == preSignResult) {
            return new FinishedMessage();
        }
        boolean logoff = preSignResult.getLogoff();
        byte[] computedDigestValue = preSignResult.getDigestInfo().digestValue;
        String digestAlgo = preSignResult.getDigestInfo().digestAlgo;
        String authnMessage = preSignResult.getDigestInfo().description;
        AuthSignRequestMessage authSignRequestMessage = new AuthSignRequestMessage(computedDigestValue,
                digestAlgo, authnMessage, logoff);
        return authSignRequestMessage;
    }
    return new FinishedMessage();
}

From source file:eu.europa.esig.dss.cades.signature.CAdESLevelBETSITS101733Test.java

License:Open Source License

@Override
protected void onDocumentSigned(byte[] byteArray) {
    try {//  www .  ja va2s . c  om

        CAdESSignature signature = new CAdESSignature(byteArray);
        assertNotNull(signature.getCmsSignedData());

        ASN1InputStream asn1sInput = new ASN1InputStream(byteArray);
        ASN1Sequence asn1Seq = (ASN1Sequence) asn1sInput.readObject();

        logger.info("SEQ : " + asn1Seq.toString());

        assertEquals(2, asn1Seq.size());

        ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(asn1Seq.getObjectAt(0));
        assertEquals(PKCSObjectIdentifiers.signedData, oid);
        logger.info("OID : " + oid.toString());

        ASN1TaggedObject taggedObj = DERTaggedObject.getInstance(asn1Seq.getObjectAt(1));

        logger.info("TAGGED OBJ : " + taggedObj.toString());

        ASN1Primitive object = taggedObj.getObject();
        logger.info("OBJ : " + object.toString());

        SignedData signedData = SignedData.getInstance(object);
        logger.info("SIGNED DATA : " + signedData.toString());

        ASN1Set digestAlgorithms = signedData.getDigestAlgorithms();
        logger.info("DIGEST ALGOS : " + digestAlgorithms.toString());

        ContentInfo encapContentInfo = signedData.getEncapContentInfo();
        logger.info("ENCAPSULATED CONTENT INFO : " + encapContentInfo.getContentType() + " "
                + encapContentInfo.getContent());

        ASN1Set certificates = signedData.getCertificates();
        logger.info("CERTIFICATES (" + certificates.size() + ") : " + certificates);

        List<X509Certificate> foundCertificates = new ArrayList<X509Certificate>();
        for (int i = 0; i < certificates.size(); i++) {
            ASN1Sequence seqCertif = ASN1Sequence.getInstance(certificates.getObjectAt(i));
            logger.info("SEQ cert " + i + " : " + seqCertif);

            X509CertificateHolder certificateHolder = new X509CertificateHolder(seqCertif.getEncoded());
            CertificateToken certificate = DSSASN1Utils.getCertificate(certificateHolder);
            X509Certificate x509Certificate = certificate.getCertificate();
            x509Certificate.checkValidity();

            logger.info("Cert " + i + " : " + certificate);

            foundCertificates.add(x509Certificate);
        }

        ASN1Set crLs = signedData.getCRLs();
        logger.info("CRLs : " + crLs);

        ASN1Set signerInfosAsn1 = signedData.getSignerInfos();
        logger.info("SIGNER INFO ASN1 : " + signerInfosAsn1.toString());
        assertEquals(1, signerInfosAsn1.size());

        ASN1Sequence seqSignedInfo = ASN1Sequence.getInstance(signerInfosAsn1.getObjectAt(0));

        SignerInfo signedInfo = SignerInfo.getInstance(seqSignedInfo);
        logger.info("SIGNER INFO : " + signedInfo.toString());

        SignerIdentifier sid = signedInfo.getSID();
        logger.info("SIGNER IDENTIFIER : " + sid.getId());

        IssuerAndSerialNumber issuerAndSerialNumber = IssuerAndSerialNumber.getInstance(signedInfo.getSID());
        logger.info("ISSUER AND SN : " + issuerAndSerialNumber.toString());

        BigInteger serial = issuerAndSerialNumber.getSerialNumber().getValue();

        X509Certificate signerCertificate = null;
        for (X509Certificate x509Certificate : foundCertificates) {
            // TODO check issuer name
            if (serial.equals(x509Certificate.getSerialNumber())) {
                signerCertificate = x509Certificate;
            }
        }
        assertNotNull(signerCertificate);

        ASN1OctetString encryptedDigest = signedInfo.getEncryptedDigest();
        logger.info("ENCRYPT DIGEST : " + encryptedDigest.toString());

        ASN1Sequence seq = ASN1Sequence.getInstance(object);

        ASN1Integer version = ASN1Integer.getInstance(seq.getObjectAt(0));
        logger.info("VERSION : " + version.toString());

        ASN1Set digestManualSet = ASN1Set.getInstance(seq.getObjectAt(1));
        logger.info("DIGEST SET : " + digestManualSet.toString());
        assertEquals(digestAlgorithms, digestManualSet);

        ASN1Sequence seqDigest = ASN1Sequence.getInstance(digestManualSet.getObjectAt(0));
        // assertEquals(1, seqDigest.size());

        ASN1ObjectIdentifier oidDigestAlgo = ASN1ObjectIdentifier.getInstance(seqDigest.getObjectAt(0));
        assertEquals(new ASN1ObjectIdentifier(DigestAlgorithm.SHA256.getOid()), oidDigestAlgo);

        ASN1Sequence seqEncapsulatedInfo = ASN1Sequence.getInstance(seq.getObjectAt(2));
        logger.info("ENCAPSULATED INFO : " + seqEncapsulatedInfo.toString());

        ASN1ObjectIdentifier oidContentType = ASN1ObjectIdentifier
                .getInstance(seqEncapsulatedInfo.getObjectAt(0));
        logger.info("OID CONTENT TYPE : " + oidContentType.toString());

        ASN1TaggedObject taggedContent = DERTaggedObject.getInstance(seqEncapsulatedInfo.getObjectAt(1));

        ASN1OctetString contentOctetString = ASN1OctetString.getInstance(taggedContent.getObject());
        String content = new String(contentOctetString.getOctets());
        assertEquals(HELLO_WORLD, content);
        logger.info("CONTENT : " + content);

        byte[] digest = DSSUtils.digest(DigestAlgorithm.SHA256, HELLO_WORLD.getBytes());
        String encodeHexDigest = Hex.toHexString(digest);
        logger.info("CONTENT DIGEST COMPUTED : " + encodeHexDigest);

        ASN1Set authenticatedAttributes = signedInfo.getAuthenticatedAttributes();
        logger.info("AUTHENTICATED ATTRIBUTES : " + authenticatedAttributes.toString());

        // ASN1Sequence seqAuthAttrib = ASN1Sequence.getInstance(authenticatedAttributes.getObjectAt(0));

        logger.info("Nb Auth Attributes : " + authenticatedAttributes.size());

        String embeddedDigest = "";
        for (int i = 0; i < authenticatedAttributes.size(); i++) {
            ASN1Sequence authAttrSeq = ASN1Sequence.getInstance(authenticatedAttributes.getObjectAt(i));
            logger.info(authAttrSeq.toString());
            ASN1ObjectIdentifier attrOid = ASN1ObjectIdentifier.getInstance(authAttrSeq.getObjectAt(0));
            if (PKCSObjectIdentifiers.pkcs_9_at_messageDigest.equals(attrOid)) {
                ASN1Set setMessageDigest = ASN1Set.getInstance(authAttrSeq.getObjectAt(1));
                ASN1OctetString asn1ObjString = ASN1OctetString.getInstance(setMessageDigest.getObjectAt(0));
                embeddedDigest = Hex.toHexString(asn1ObjString.getOctets());
            }
        }
        assertEquals(encodeHexDigest, embeddedDigest);

        ASN1OctetString encryptedInfoOctedString = signedInfo.getEncryptedDigest();
        String signatureValue = Hex.toHexString(encryptedInfoOctedString.getOctets());

        logger.info("SIGNATURE VALUE : " + signatureValue);

        Cipher cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.DECRYPT_MODE, signerCertificate);
        byte[] decrypted = cipher.doFinal(encryptedInfoOctedString.getOctets());

        ASN1InputStream inputDecrypted = new ASN1InputStream(decrypted);

        ASN1Sequence seqDecrypt = (ASN1Sequence) inputDecrypted.readObject();
        logger.info("Decrypted : " + seqDecrypt);

        DigestInfo digestInfo = new DigestInfo(seqDecrypt);
        assertEquals(oidDigestAlgo, digestInfo.getAlgorithmId().getAlgorithm());

        String decryptedDigestEncodeBase64 = Utils.toBase64(digestInfo.getDigest());
        logger.info("Decrypted Base64 : " + decryptedDigestEncodeBase64);

        byte[] encoded = signedInfo.getAuthenticatedAttributes().getEncoded();
        MessageDigest messageDigest = MessageDigest.getInstance(DigestAlgorithm.SHA256.getName());
        byte[] digestOfAuthenticatedAttributes = messageDigest.digest(encoded);

        String computedDigestEncodeBase64 = Utils.toBase64(digestOfAuthenticatedAttributes);
        logger.info("Computed Base64 : " + computedDigestEncodeBase64);

        assertEquals(decryptedDigestEncodeBase64, computedDigestEncodeBase64);

        Utils.closeQuietly(asn1sInput);
        Utils.closeQuietly(inputDecrypted);
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        fail(e.getMessage());
    }
}

From source file:eu.europa.esig.dss.cades.signature.CAdESLevelBTest.java

License:Open Source License

@Override
protected void onDocumentSigned(byte[] byteArray) {
    try {/*  w  ww  . j  a  v a 2  s .c om*/

        CAdESSignature signature = new CAdESSignature(byteArray);
        assertNotNull(signature.getCmsSignedData());

        ASN1InputStream asn1sInput = new ASN1InputStream(byteArray);
        ASN1Sequence asn1Seq = (ASN1Sequence) asn1sInput.readObject();

        logger.info("SEQ : " + asn1Seq.toString());

        assertEquals(2, asn1Seq.size());

        ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(asn1Seq.getObjectAt(0));
        assertEquals(PKCSObjectIdentifiers.signedData, oid);
        logger.info("OID : " + oid.toString());

        ASN1TaggedObject taggedObj = DERTaggedObject.getInstance(asn1Seq.getObjectAt(1));

        logger.info("TAGGED OBJ : " + taggedObj.toString());

        ASN1Primitive object = taggedObj.getObject();
        logger.info("OBJ : " + object.toString());

        SignedData signedData = SignedData.getInstance(object);
        logger.info("SIGNED DATA : " + signedData.toString());

        ASN1Set digestAlgorithms = signedData.getDigestAlgorithms();
        logger.info("DIGEST ALGOS : " + digestAlgorithms.toString());

        ContentInfo encapContentInfo = signedData.getEncapContentInfo();
        logger.info("ENCAPSULATED CONTENT INFO : " + encapContentInfo.getContentType() + " "
                + encapContentInfo.getContent());

        ASN1Set certificates = signedData.getCertificates();
        logger.info("CERTIFICATES (" + certificates.size() + ") : " + certificates);

        List<X509Certificate> foundCertificates = new ArrayList<X509Certificate>();
        for (int i = 0; i < certificates.size(); i++) {
            ASN1Sequence seqCertif = ASN1Sequence.getInstance(certificates.getObjectAt(i));
            logger.info("SEQ cert " + i + " : " + seqCertif);

            X509CertificateHolder certificateHolder = new X509CertificateHolder(seqCertif.getEncoded());
            X509Certificate certificate = new JcaX509CertificateConverter()
                    .setProvider(BouncyCastleProvider.PROVIDER_NAME).getCertificate(certificateHolder);

            certificate.checkValidity();

            logger.info("Cert " + i + " : " + certificate);

            foundCertificates.add(certificate);
        }

        ASN1Set crLs = signedData.getCRLs();
        logger.info("CRLs : " + crLs);

        ASN1Set signerInfosAsn1 = signedData.getSignerInfos();
        logger.info("SIGNER INFO ASN1 : " + signerInfosAsn1.toString());
        assertEquals(1, signerInfosAsn1.size());

        ASN1Sequence seqSignedInfo = ASN1Sequence.getInstance(signerInfosAsn1.getObjectAt(0));

        SignerInfo signedInfo = SignerInfo.getInstance(seqSignedInfo);
        logger.info("SIGNER INFO : " + signedInfo.toString());

        SignerIdentifier sid = signedInfo.getSID();
        logger.info("SIGNER IDENTIFIER : " + sid.getId());

        IssuerAndSerialNumber issuerAndSerialNumber = IssuerAndSerialNumber.getInstance(signedInfo.getSID());
        logger.info("ISSUER AND SN : " + issuerAndSerialNumber.toString());

        BigInteger serial = issuerAndSerialNumber.getSerialNumber().getValue();

        X509Certificate signerCertificate = null;
        for (X509Certificate x509Certificate : foundCertificates) {
            // TODO check issuer name
            if (serial.equals(x509Certificate.getSerialNumber())) {
                signerCertificate = x509Certificate;
            }
        }
        assertNotNull(signerCertificate);

        ASN1OctetString encryptedDigest = signedInfo.getEncryptedDigest();
        logger.info("ENCRYPT DIGEST : " + encryptedDigest.toString());

        ASN1Sequence seq = ASN1Sequence.getInstance(object);

        ASN1Integer version = ASN1Integer.getInstance(seq.getObjectAt(0));
        logger.info("VERSION : " + version.toString());

        ASN1Set digestManualSet = ASN1Set.getInstance(seq.getObjectAt(1));
        logger.info("DIGEST SET : " + digestManualSet.toString());
        assertEquals(digestAlgorithms, digestManualSet);

        ASN1Sequence seqDigest = ASN1Sequence.getInstance(digestManualSet.getObjectAt(0));
        // assertEquals(1, seqDigest.size());

        ASN1ObjectIdentifier oidDigestAlgo = ASN1ObjectIdentifier.getInstance(seqDigest.getObjectAt(0));
        assertEquals(new ASN1ObjectIdentifier(DigestAlgorithm.SHA256.getOid()), oidDigestAlgo);

        ASN1Sequence seqEncapsulatedInfo = ASN1Sequence.getInstance(seq.getObjectAt(2));
        logger.info("ENCAPSULATED INFO : " + seqEncapsulatedInfo.toString());

        ASN1ObjectIdentifier oidContentType = ASN1ObjectIdentifier
                .getInstance(seqEncapsulatedInfo.getObjectAt(0));
        logger.info("OID CONTENT TYPE : " + oidContentType.toString());

        ASN1TaggedObject taggedContent = DERTaggedObject.getInstance(seqEncapsulatedInfo.getObjectAt(1));

        ASN1OctetString contentOctetString = ASN1OctetString.getInstance(taggedContent.getObject());
        String content = new String(contentOctetString.getOctets());
        assertEquals(HELLO_WORLD, content);
        logger.info("CONTENT : " + content);

        byte[] digest = DSSUtils.digest(DigestAlgorithm.SHA256, HELLO_WORLD.getBytes());
        String encodeHexDigest = Hex.toHexString(digest);
        logger.info("CONTENT DIGEST COMPUTED : " + encodeHexDigest);

        ASN1Set authenticatedAttributes = signedInfo.getAuthenticatedAttributes();
        logger.info("AUTHENTICATED ATTRIBUTES : " + authenticatedAttributes.toString());

        // ASN1Sequence seqAuthAttrib = ASN1Sequence.getInstance(authenticatedAttributes.getObjectAt(0));

        logger.info("Nb Auth Attributes : " + authenticatedAttributes.size());

        String embeddedDigest = StringUtils.EMPTY;
        for (int i = 0; i < authenticatedAttributes.size(); i++) {
            ASN1Sequence authAttrSeq = ASN1Sequence.getInstance(authenticatedAttributes.getObjectAt(i));
            logger.info(authAttrSeq.toString());
            ASN1ObjectIdentifier attrOid = ASN1ObjectIdentifier.getInstance(authAttrSeq.getObjectAt(0));
            if (PKCSObjectIdentifiers.pkcs_9_at_messageDigest.equals(attrOid)) {
                ASN1Set setMessageDigest = ASN1Set.getInstance(authAttrSeq.getObjectAt(1));
                ASN1OctetString asn1ObjString = ASN1OctetString.getInstance(setMessageDigest.getObjectAt(0));
                embeddedDigest = Hex.toHexString(asn1ObjString.getOctets());
            }
        }
        assertEquals(encodeHexDigest, embeddedDigest);

        ASN1OctetString encryptedInfoOctedString = signedInfo.getEncryptedDigest();
        String signatureValue = Hex.toHexString(encryptedInfoOctedString.getOctets());

        logger.info("SIGNATURE VALUE : " + signatureValue);

        Cipher cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.DECRYPT_MODE, signerCertificate);
        byte[] decrypted = cipher.doFinal(encryptedInfoOctedString.getOctets());

        ASN1InputStream inputDecrypted = new ASN1InputStream(decrypted);

        ASN1Sequence seqDecrypt = (ASN1Sequence) inputDecrypted.readObject();
        logger.info("Decrypted : " + seqDecrypt);

        DigestInfo digestInfo = new DigestInfo(seqDecrypt);
        assertEquals(oidDigestAlgo, digestInfo.getAlgorithmId().getAlgorithm());

        String decryptedDigestEncodeBase64 = Base64.encodeBase64String(digestInfo.getDigest());
        logger.info("Decrypted Base64 : " + decryptedDigestEncodeBase64);

        byte[] encoded = signedInfo.getAuthenticatedAttributes().getEncoded();
        MessageDigest messageDigest = MessageDigest.getInstance(DigestAlgorithm.SHA256.getName());
        byte[] digestOfAuthenticatedAttributes = messageDigest.digest(encoded);

        String computedDigestEncodeBase64 = Base64.encodeBase64String(digestOfAuthenticatedAttributes);
        logger.info("Computed Base64 : " + computedDigestEncodeBase64);

        assertEquals(decryptedDigestEncodeBase64, computedDigestEncodeBase64);

        IOUtils.closeQuietly(asn1sInput);
        IOUtils.closeQuietly(inputDecrypted);
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        fail(e.getMessage());
    }
}

From source file:eu.europa.esig.dss.pades.InfiniteLoopDSS621Test.java

License:Open Source License

/**
 * These signatures are invalid because of non ordered signed attributes
 *//* w  w w  . j a v  a2s  .  co m*/
@Test
public void manualTest() throws Exception {

    File pdfFile = new File(FILE_PATH);

    FileInputStream fis = new FileInputStream(pdfFile);
    byte[] pdfBytes = IOUtils.toByteArray(fis);

    PDDocument document = PDDocument.load(pdfFile);
    List<PDSignature> signatures = document.getSignatureDictionaries();
    assertEquals(6, signatures.size());

    int idx = 0;
    for (PDSignature pdSignature : signatures) {
        byte[] contents = pdSignature.getContents(pdfBytes);
        byte[] signedContent = pdSignature.getSignedContent(pdfBytes);

        logger.info("Byte range : " + Arrays.toString(pdSignature.getByteRange()));

        IOUtils.write(contents, new FileOutputStream("target/sig" + (idx++) + ".p7s"));

        ASN1InputStream asn1sInput = new ASN1InputStream(contents);
        ASN1Sequence asn1Seq = (ASN1Sequence) asn1sInput.readObject();

        logger.info("SEQ : " + asn1Seq.toString());

        ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(asn1Seq.getObjectAt(0));
        assertEquals(PKCSObjectIdentifiers.signedData, oid);

        SignedData signedData = SignedData
                .getInstance(DERTaggedObject.getInstance(asn1Seq.getObjectAt(1)).getObject());

        ASN1Set digestAlgorithmSet = signedData.getDigestAlgorithms();
        ASN1ObjectIdentifier oidDigestAlgo = ASN1ObjectIdentifier
                .getInstance(ASN1Sequence.getInstance(digestAlgorithmSet.getObjectAt(0)).getObjectAt(0));
        DigestAlgorithm digestAlgorithm = DigestAlgorithm.forOID(oidDigestAlgo.getId());
        logger.info("DIGEST ALGO : " + digestAlgorithm);

        ContentInfo encapContentInfo = signedData.getEncapContentInfo();
        ASN1ObjectIdentifier contentTypeOID = encapContentInfo.getContentType();
        logger.info("ENCAPSULATED CONTENT INFO TYPE : " + contentTypeOID);

        if (!PKCSObjectIdentifiers.id_ct_TSTInfo.equals(contentTypeOID)) { // If not timestamp
            assertEquals(PKCSObjectIdentifiers.data, contentTypeOID);

            ASN1Encodable content = encapContentInfo.getContent();
            logger.info("ENCAPSULATED CONTENT INFO CONTENT : " + content);
            assertNull(content);

            List<X509Certificate> certificates = extractCertificates(signedData);

            ASN1Set signerInfosAsn1 = signedData.getSignerInfos();
            logger.info("SIGNER INFO ASN1 : " + signerInfosAsn1.toString());
            SignerInfo signedInfo = SignerInfo
                    .getInstance(ASN1Sequence.getInstance(signerInfosAsn1.getObjectAt(0)));

            ASN1Set authenticatedAttributeSet = signedInfo.getAuthenticatedAttributes();
            logger.info("AUTHENTICATED ATTR : " + authenticatedAttributeSet);

            Attribute attributeDigest = null;
            for (int i = 0; i < authenticatedAttributeSet.size(); i++) {
                Attribute attribute = Attribute.getInstance(authenticatedAttributeSet.getObjectAt(i));
                if (PKCSObjectIdentifiers.pkcs_9_at_messageDigest.equals(attribute.getAttrType())) {
                    attributeDigest = attribute;
                    break;
                }
            }

            assertNotNull(attributeDigest);

            ASN1OctetString asn1ObjString = ASN1OctetString
                    .getInstance(attributeDigest.getAttrValues().getObjectAt(0));
            String embeddedDigest = Base64.encodeBase64String(asn1ObjString.getOctets());
            logger.info("MESSAGE DIGEST : " + embeddedDigest);

            byte[] digestSignedContent = DSSUtils.digest(digestAlgorithm, signedContent);
            String computedDigestSignedContentEncodeBase64 = Base64.encodeBase64String(digestSignedContent);
            logger.info("COMPUTED DIGEST SIGNED CONTENT BASE64 : " + computedDigestSignedContentEncodeBase64);
            assertEquals(embeddedDigest, computedDigestSignedContentEncodeBase64);

            SignerIdentifier sid = signedInfo.getSID();
            logger.info("SIGNER IDENTIFIER : " + sid.getId());

            IssuerAndSerialNumber issuerAndSerialNumber = IssuerAndSerialNumber
                    .getInstance(signedInfo.getSID());
            ASN1Integer signerSerialNumber = issuerAndSerialNumber.getSerialNumber();
            logger.info("ISSUER AND SN : " + issuerAndSerialNumber.getName() + " " + signerSerialNumber);

            BigInteger serial = issuerAndSerialNumber.getSerialNumber().getValue();
            X509Certificate signerCertificate = null;
            for (X509Certificate x509Certificate : certificates) {
                if (serial.equals(x509Certificate.getSerialNumber())) {
                    signerCertificate = x509Certificate;
                }
            }
            assertNotNull(signerCertificate);

            String algorithm = signerCertificate.getPublicKey().getAlgorithm();
            EncryptionAlgorithm encryptionAlgorithm = EncryptionAlgorithm.forName(algorithm);

            ASN1OctetString encryptedInfoOctedString = signedInfo.getEncryptedDigest();
            String signatureValue = Hex.toHexString(encryptedInfoOctedString.getOctets());

            logger.info("SIGNATURE VALUE : " + signatureValue);

            Cipher cipher = Cipher.getInstance(encryptionAlgorithm.getName());
            cipher.init(Cipher.DECRYPT_MODE, signerCertificate);
            byte[] decrypted = cipher.doFinal(encryptedInfoOctedString.getOctets());

            ASN1InputStream inputDecrypted = new ASN1InputStream(decrypted);

            ASN1Sequence seqDecrypt = (ASN1Sequence) inputDecrypted.readObject();
            logger.info("DECRYPTED : " + seqDecrypt);

            DigestInfo digestInfo = new DigestInfo(seqDecrypt);
            assertEquals(oidDigestAlgo, digestInfo.getAlgorithmId().getAlgorithm());

            String decryptedDigestEncodeBase64 = Base64.encodeBase64String(digestInfo.getDigest());
            logger.info("DECRYPTED BASE64 : " + decryptedDigestEncodeBase64);

            byte[] encoded = authenticatedAttributeSet.getEncoded();
            byte[] digest = DSSUtils.digest(digestAlgorithm, encoded);
            String computedDigestFromSignatureEncodeBase64 = Base64.encodeBase64String(digest);
            logger.info("COMPUTED DIGEST FROM SIGNATURE BASE64 : " + computedDigestFromSignatureEncodeBase64);

            assertEquals(decryptedDigestEncodeBase64, computedDigestFromSignatureEncodeBase64);

            IOUtils.closeQuietly(inputDecrypted);

        }

        IOUtils.closeQuietly(asn1sInput);
    }

    IOUtils.closeQuietly(fis);
    document.close();
}

From source file:eu.europa.esig.dss.pades.signature.PAdESLevelBTest.java

License:Open Source License

@Override
protected void onDocumentSigned(byte[] byteArray) {

    try {/*from   w w w . jav  a 2  s . c o  m*/
        InputStream inputStream = new ByteArrayInputStream(byteArray);

        PDDocument document = PDDocument.load(inputStream);
        List<PDSignature> signatures = document.getSignatureDictionaries();
        assertEquals(1, signatures.size());

        for (PDSignature pdSignature : signatures) {
            byte[] contents = pdSignature.getContents(byteArray);
            byte[] signedContent = pdSignature.getSignedContent(byteArray);

            logger.info("Byte range : " + Arrays.toString(pdSignature.getByteRange()));

            // IOUtils.write(contents, new FileOutputStream("sig.p7s"));

            ASN1InputStream asn1sInput = new ASN1InputStream(contents);
            ASN1Sequence asn1Seq = (ASN1Sequence) asn1sInput.readObject();

            logger.info("SEQ : " + asn1Seq.toString());

            ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(asn1Seq.getObjectAt(0));
            assertEquals(PKCSObjectIdentifiers.signedData, oid);

            SignedData signedData = SignedData
                    .getInstance(DERTaggedObject.getInstance(asn1Seq.getObjectAt(1)).getObject());

            ASN1Set digestAlgorithmSet = signedData.getDigestAlgorithms();
            ASN1ObjectIdentifier oidDigestAlgo = ASN1ObjectIdentifier
                    .getInstance(ASN1Sequence.getInstance(digestAlgorithmSet.getObjectAt(0)).getObjectAt(0));
            DigestAlgorithm digestAlgorithm = DigestAlgorithm.forOID(oidDigestAlgo.getId());
            logger.info("DIGEST ALGO : " + digestAlgorithm);

            ContentInfo encapContentInfo = signedData.getEncapContentInfo();
            ASN1ObjectIdentifier contentTypeOID = encapContentInfo.getContentType();
            logger.info("ENCAPSULATED CONTENT INFO TYPE : " + contentTypeOID);
            assertEquals(PKCSObjectIdentifiers.data, contentTypeOID);

            ASN1Encodable content = encapContentInfo.getContent();
            logger.info("ENCAPSULATED CONTENT INFO CONTENT : " + content);
            assertNull(content);

            List<X509Certificate> certificates = extractCertificates(signedData);

            ASN1Set signerInfosAsn1 = signedData.getSignerInfos();
            logger.info("SIGNER INFO ASN1 : " + signerInfosAsn1.toString());
            SignerInfo signedInfo = SignerInfo
                    .getInstance(ASN1Sequence.getInstance(signerInfosAsn1.getObjectAt(0)));

            ASN1Set authenticatedAttributeSet = signedInfo.getAuthenticatedAttributes();
            logger.info("AUTHENTICATED ATTR : " + authenticatedAttributeSet);

            List<ASN1ObjectIdentifier> attributeOids = new ArrayList<ASN1ObjectIdentifier>();
            int previousSize = 0;
            for (int i = 0; i < authenticatedAttributeSet.size(); i++) {
                Attribute attribute = Attribute.getInstance(authenticatedAttributeSet.getObjectAt(i));
                ASN1ObjectIdentifier attrTypeOid = attribute.getAttrType();
                attributeOids.add(attrTypeOid);
                int size = attrTypeOid.getEncoded().length + attribute.getEncoded().length;
                assertTrue(size >= previousSize);

                previousSize = size;
            }
            logger.info("List of OID for Auth Attrb : " + attributeOids);

            Attribute attributeDigest = Attribute.getInstance(authenticatedAttributeSet.getObjectAt(1));
            assertEquals(PKCSObjectIdentifiers.pkcs_9_at_messageDigest, attributeDigest.getAttrType());

            ASN1OctetString asn1ObjString = ASN1OctetString
                    .getInstance(attributeDigest.getAttrValues().getObjectAt(0));
            String embeddedDigest = Base64.encodeBase64String(asn1ObjString.getOctets());
            logger.info("MESSAGE DIGEST : " + embeddedDigest);

            byte[] digestSignedContent = DSSUtils.digest(digestAlgorithm, signedContent);
            String computedDigestSignedContentEncodeBase64 = Base64.encodeBase64String(digestSignedContent);
            logger.info("COMPUTED DIGEST SIGNED CONTENT BASE64 : " + computedDigestSignedContentEncodeBase64);
            assertEquals(embeddedDigest, computedDigestSignedContentEncodeBase64);

            SignerIdentifier sid = signedInfo.getSID();
            logger.info("SIGNER IDENTIFIER : " + sid.getId());

            IssuerAndSerialNumber issuerAndSerialNumber = IssuerAndSerialNumber
                    .getInstance(signedInfo.getSID());
            ASN1Integer signerSerialNumber = issuerAndSerialNumber.getSerialNumber();
            logger.info("ISSUER AND SN : " + issuerAndSerialNumber.getName() + " " + signerSerialNumber);

            BigInteger serial = issuerAndSerialNumber.getSerialNumber().getValue();
            X509Certificate signerCertificate = null;
            for (X509Certificate x509Certificate : certificates) {
                if (serial.equals(x509Certificate.getSerialNumber())) {
                    signerCertificate = x509Certificate;
                }
            }
            assertNotNull(signerCertificate);

            String algorithm = signerCertificate.getPublicKey().getAlgorithm();
            EncryptionAlgorithm encryptionAlgorithm = EncryptionAlgorithm.forName(algorithm);

            ASN1OctetString encryptedInfoOctedString = signedInfo.getEncryptedDigest();
            String signatureValue = Hex.toHexString(encryptedInfoOctedString.getOctets());

            logger.info("SIGNATURE VALUE : " + signatureValue);

            Cipher cipher = Cipher.getInstance(encryptionAlgorithm.getName());
            cipher.init(Cipher.DECRYPT_MODE, signerCertificate);
            byte[] decrypted = cipher.doFinal(encryptedInfoOctedString.getOctets());

            ASN1InputStream inputDecrypted = new ASN1InputStream(decrypted);

            ASN1Sequence seqDecrypt = (ASN1Sequence) inputDecrypted.readObject();
            logger.info("DECRYPTED : " + seqDecrypt);

            DigestInfo digestInfo = new DigestInfo(seqDecrypt);
            assertEquals(oidDigestAlgo, digestInfo.getAlgorithmId().getAlgorithm());

            String decryptedDigestEncodeBase64 = Base64.encodeBase64String(digestInfo.getDigest());
            logger.info("DECRYPTED BASE64 : " + decryptedDigestEncodeBase64);

            byte[] encoded = authenticatedAttributeSet.getEncoded();
            byte[] digest = DSSUtils.digest(digestAlgorithm, encoded);
            String computedDigestFromSignatureEncodeBase64 = Base64.encodeBase64String(digest);
            logger.info("COMPUTED DIGEST FROM SIGNATURE BASE64 : " + computedDigestFromSignatureEncodeBase64);

            assertEquals(decryptedDigestEncodeBase64, computedDigestFromSignatureEncodeBase64);

            IOUtils.closeQuietly(inputDecrypted);
            IOUtils.closeQuietly(asn1sInput);
        }

        IOUtils.closeQuietly(inputStream);
        document.close();
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        fail(e.getMessage());
    }
}

From source file:org.ccnx.ccn.protocol.Signature.java

License:Open Source License

/**
 * Compute the content proxy for a given node. This should likely move somewhere else
 * @param nodeContent the content stored at this node
 * @param isDigest is the content already digested
 * @return the proxy digest (for example, the computed root of the Merkle hash tree) for this node
 * @throws CertificateEncodingException if we cannot decode the witness
 *//*from  ww  w  .j av a  2  s.  c o  m*/
public byte[] computeProxy(byte[] nodeContent, boolean isDigest) throws CertificateEncodingException {
    if (null == witness())
        return null;

    DigestInfo info = CCNDigestHelper.digestDecoder(witness());

    byte[] proxy = null;

    if (MerklePath.isMerklePath(info)) {
        MerklePath mp = new MerklePath(info.getDigest());
        proxy = mp.root(nodeContent, isDigest);
    } else {
        Log.warning("Unexpected witness type: " + info.getAlgorithmId().toString());
    }
    return proxy;
}

From source file:org.ccnx.ccn.security.crypto.MerkleTreeTest.java

License:Open Source License

public static void testTree(byte[][] content, int count, boolean digest) {
    // Generate a merkle tree. Verify each path for the content.
    MerkleTree tree = new MerkleTree(content, digest, count, 0,
            ((count - 1) >= 0) && ((count - 1) < content.length) ? content[count - 1].length : 0);

    MerklePath[] paths = new MerklePath[count];
    for (int i = 0; i < count; ++i) {
        paths[i] = tree.path(i);// ww  w  .j ava  2 s.c om
        //checkPath(tree, paths[i]);
        byte[] root = paths[i].root(content[i], digest);
        boolean result = Arrays.equals(root, tree.root());
        if (!result) {
            System.out.println("Constructed tree of " + count + " blocks (of " + content.length
                    + "), numleaves: " + tree.numLeaves() + " max pathlength: " + tree.maxDepth());
            System.out.println("Path " + i + " verified for leaf " + paths[i].leafNodeIndex() + "? " + result);
        }
        Assert.assertTrue("Path " + i + " failed to verify.", result);

        try {
            byte[] encodedPath = paths[i].derEncodedPath();
            DigestInfo info = CCNDigestHelper.digestDecoder(encodedPath);
            MerklePath decoded = new MerklePath(info.getDigest());
            if (!decoded.equals(paths[i])) {
                System.out.println("Path " + i + " failed to encode and decode.");
                Assert.fail("Path " + i + " failed to encode and decode.");
            }
        } catch (Exception e) {
            System.out.println(
                    "Exception encoding path " + i + " :" + e.getClass().getName() + ": " + e.getMessage());
            e.printStackTrace();
            Assert.fail("Exception encoding path " + i + " :" + e.getClass().getName() + ": " + e.getMessage());
        }
    }
}

From source file:org.ndnx.ndn.protocol.Signature.java

License:Open Source License

/**
 * Compute the content proxy for a given node. This should likely move somewhere else
 * @param nodeContent the content stored at this node
 * @param isDigest is the content already digested
 * @return the proxy digest (for example, the computed root of the Merkle hash tree) for this node
 * @throws CertificateEncodingException if we cannot decode the witness
 *//*from www .ja v  a 2s . c  om*/
public byte[] computeProxy(byte[] nodeContent, boolean isDigest) throws CertificateEncodingException {
    if (null == witness())
        return null;

    DigestInfo info = NDNDigestHelper.digestDecoder(witness());

    byte[] proxy = null;

    if (MerklePath.isMerklePath(info)) {
        MerklePath mp = new MerklePath(info.getDigest());
        proxy = mp.root(nodeContent, isDigest);
    } else {
        Log.warning("Unexpected witness type: " + info.getAlgorithmId().toString());
    }
    return proxy;
}

From source file:org.ndnx.ndn.security.crypto.MerkleTreeTest.java

License:Open Source License

public static void testTree(byte[][] content, int count, boolean digest) {
    // Generate a merkle tree. Verify each path for the content.
    MerkleTree tree = new MerkleTree(content, digest, count, 0,
            ((count - 1) >= 0) && ((count - 1) < content.length) ? content[count - 1].length : 0);

    MerklePath[] paths = new MerklePath[count];
    for (int i = 0; i < count; ++i) {
        paths[i] = tree.path(i);//w ww  .j  a  va  2s  .c o m
        //checkPath(tree, paths[i]);
        byte[] root = paths[i].root(content[i], digest);
        boolean result = Arrays.equals(root, tree.root());
        if (!result) {
            System.out.println("Constructed tree of " + count + " blocks (of " + content.length
                    + "), numleaves: " + tree.numLeaves() + " max pathlength: " + tree.maxDepth());
            System.out.println("Path " + i + " verified for leaf " + paths[i].leafNodeIndex() + "? " + result);
        }
        Assert.assertTrue("Path " + i + " failed to verify.", result);

        try {
            byte[] encodedPath = paths[i].derEncodedPath();
            DigestInfo info = NDNDigestHelper.digestDecoder(encodedPath);
            MerklePath decoded = new MerklePath(info.getDigest());
            if (!decoded.equals(paths[i])) {
                System.out.println("Path " + i + " failed to encode and decode.");
                Assert.fail("Path " + i + " failed to encode and decode.");
            }
        } catch (Exception e) {
            System.out.println(
                    "Exception encoding path " + i + " :" + e.getClass().getName() + ": " + e.getMessage());
            e.printStackTrace();
            Assert.fail("Exception encoding path " + i + " :" + e.getClass().getName() + ": " + e.getMessage());
        }
    }
}