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Example 1 with X509CertVersion

use of org.xipki.ca.api.profile.x509.X509CertVersion in project xipki by xipki.

the class X509CertprofileQa method checkCert.

// constructor
public ValidationResult checkCert(byte[] certBytes, X509IssuerInfo issuerInfo, X500Name requestedSubject, SubjectPublicKeyInfo requestedPublicKey, Extensions requestedExtensions) {
    ParamUtil.requireNonNull("certBytes", certBytes);
    ParamUtil.requireNonNull("issuerInfo", issuerInfo);
    ParamUtil.requireNonNull("requestedSubject", requestedSubject);
    ParamUtil.requireNonNull("requestedPublicKey", requestedPublicKey);
    List<ValidationIssue> resultIssues = new LinkedList<ValidationIssue>();
    Certificate bcCert;
    TBSCertificate tbsCert;
    X509Certificate cert;
    ValidationIssue issue;
    // certificate size
    issue = new ValidationIssue("X509.SIZE", "certificate size");
    resultIssues.add(issue);
    Integer maxSize = certProfile.getMaxSize();
    if (maxSize != 0) {
        int size = certBytes.length;
        if (size > maxSize) {
            issue.setFailureMessage(String.format("certificate exceeds the maximal allowed size: %d > %d", size, maxSize));
        }
    }
    // certificate encoding
    issue = new ValidationIssue("X509.ENCODING", "certificate encoding");
    resultIssues.add(issue);
    try {
        bcCert = Certificate.getInstance(certBytes);
        tbsCert = bcCert.getTBSCertificate();
        cert = X509Util.parseCert(certBytes);
    } catch (CertificateException ex) {
        issue.setFailureMessage("certificate is not corrected encoded");
        return new ValidationResult(resultIssues);
    }
    // syntax version
    issue = new ValidationIssue("X509.VERSION", "certificate version");
    resultIssues.add(issue);
    int versionNumber = tbsCert.getVersionNumber();
    X509CertVersion expVersion = certProfile.getVersion();
    if (versionNumber != expVersion.getVersionNumber()) {
        issue.setFailureMessage("is '" + versionNumber + "' but expected '" + expVersion.getVersionNumber() + "'");
    }
    // serialNumber
    issue = new ValidationIssue("X509.serialNumber", "certificate serial number");
    resultIssues.add(issue);
    BigInteger serialNumber = tbsCert.getSerialNumber().getValue();
    if (serialNumber.signum() != 1) {
        issue.setFailureMessage("not positive");
    } else {
        if (serialNumber.bitLength() >= 160) {
            issue.setFailureMessage("serial number has more than 20 octets");
        }
    }
    // signatureAlgorithm
    List<String> signatureAlgorithms = certProfile.getSignatureAlgorithms();
    if (CollectionUtil.isNonEmpty(signatureAlgorithms)) {
        issue = new ValidationIssue("X509.SIGALG", "signature algorithm");
        resultIssues.add(issue);
        AlgorithmIdentifier sigAlgId = bcCert.getSignatureAlgorithm();
        AlgorithmIdentifier tbsSigAlgId = tbsCert.getSignature();
        if (!tbsSigAlgId.equals(sigAlgId)) {
            issue.setFailureMessage("Certificate.tbsCertificate.signature != Certificate.signatureAlgorithm");
        }
        try {
            String sigAlgo = AlgorithmUtil.getSignatureAlgoName(sigAlgId);
            if (!issue.isFailed()) {
                if (!signatureAlgorithms.contains(sigAlgo)) {
                    issue.setFailureMessage("signatureAlgorithm '" + sigAlgo + "' is not allowed");
                }
            }
            // check parameters
            if (!issue.isFailed()) {
                AlgorithmIdentifier expSigAlgId = AlgorithmUtil.getSigAlgId(sigAlgo);
                if (!expSigAlgId.equals(sigAlgId)) {
                    issue.setFailureMessage("invalid parameters");
                }
            }
        } catch (NoSuchAlgorithmException ex) {
            issue.setFailureMessage("unsupported signature algorithm " + sigAlgId.getAlgorithm().getId());
        }
    }
    // notBefore encoding
    issue = new ValidationIssue("X509.NOTBEFORE.ENCODING", "notBefore encoding");
    checkTime(tbsCert.getStartDate(), issue);
    // notAfter encoding
    issue = new ValidationIssue("X509.NOTAFTER.ENCODING", "notAfter encoding");
    checkTime(tbsCert.getStartDate(), issue);
    // notBefore
    if (certProfile.isNotBeforeMidnight()) {
        issue = new ValidationIssue("X509.NOTBEFORE", "notBefore midnight");
        resultIssues.add(issue);
        Calendar cal = Calendar.getInstance(UTC);
        cal.setTime(cert.getNotBefore());
        int hourOfDay = cal.get(Calendar.HOUR_OF_DAY);
        int minute = cal.get(Calendar.MINUTE);
        int second = cal.get(Calendar.SECOND);
        if (hourOfDay != 0 || minute != 0 || second != 0) {
            issue.setFailureMessage(" '" + cert.getNotBefore() + "' is not midnight time (UTC)");
        }
    }
    // validity
    issue = new ValidationIssue("X509.VALIDITY", "cert validity");
    resultIssues.add(issue);
    if (cert.getNotAfter().before(cert.getNotBefore())) {
        issue.setFailureMessage("notAfter must not be before notBefore");
    } else if (cert.getNotBefore().before(issuerInfo.getCaNotBefore())) {
        issue.setFailureMessage("notBefore must not be before CA's notBefore");
    } else {
        CertValidity validity = certProfile.getValidity();
        Date expectedNotAfter = validity.add(cert.getNotBefore());
        if (expectedNotAfter.getTime() > MAX_CERT_TIME_MS) {
            expectedNotAfter = new Date(MAX_CERT_TIME_MS);
        }
        if (issuerInfo.isCutoffNotAfter() && expectedNotAfter.after(issuerInfo.getCaNotAfter())) {
            expectedNotAfter = issuerInfo.getCaNotAfter();
        }
        if (Math.abs(expectedNotAfter.getTime() - cert.getNotAfter().getTime()) > 60 * SECOND) {
            issue.setFailureMessage("cert validity is not within " + validity.toString());
        }
    }
    // subjectPublicKeyInfo
    resultIssues.addAll(publicKeyChecker.checkPublicKey(bcCert.getSubjectPublicKeyInfo(), requestedPublicKey));
    // Signature
    issue = new ValidationIssue("X509.SIG", "whether certificate is signed by CA");
    resultIssues.add(issue);
    try {
        cert.verify(issuerInfo.getCert().getPublicKey(), "BC");
    } catch (Exception ex) {
        issue.setFailureMessage("invalid signature");
    }
    // issuer
    issue = new ValidationIssue("X509.ISSUER", "certificate issuer");
    resultIssues.add(issue);
    if (!cert.getIssuerX500Principal().equals(issuerInfo.getCert().getSubjectX500Principal())) {
        issue.setFailureMessage("issue in certificate does not equal the subject of CA certificate");
    }
    // subject
    resultIssues.addAll(subjectChecker.checkSubject(bcCert.getSubject(), requestedSubject));
    // issuerUniqueID
    issue = new ValidationIssue("X509.IssuerUniqueID", "issuerUniqueID");
    resultIssues.add(issue);
    if (tbsCert.getIssuerUniqueId() != null) {
        issue.setFailureMessage("is present but not permitted");
    }
    // subjectUniqueID
    issue = new ValidationIssue("X509.SubjectUniqueID", "subjectUniqueID");
    resultIssues.add(issue);
    if (tbsCert.getSubjectUniqueId() != null) {
        issue.setFailureMessage("is present but not permitted");
    }
    // extensions
    issue = new ValidationIssue("X509.GrantedSubject", "grantedSubject");
    resultIssues.add(issue);
    resultIssues.addAll(extensionsChecker.checkExtensions(bcCert, issuerInfo, requestedExtensions, requestedSubject));
    return new ValidationResult(resultIssues);
}
Also used : CertValidity(org.xipki.ca.api.profile.CertValidity) Calendar(java.util.Calendar) CertificateException(java.security.cert.CertificateException) NoSuchAlgorithmException(java.security.NoSuchAlgorithmException) ValidationResult(org.xipki.common.qa.ValidationResult) ValidationIssue(org.xipki.common.qa.ValidationIssue) LinkedList(java.util.LinkedList) X509Certificate(java.security.cert.X509Certificate) Date(java.util.Date) CertprofileException(org.xipki.ca.api.profile.CertprofileException) NoSuchAlgorithmException(java.security.NoSuchAlgorithmException) IOException(java.io.IOException) CertificateException(java.security.cert.CertificateException) AlgorithmIdentifier(org.bouncycastle.asn1.x509.AlgorithmIdentifier) BigInteger(java.math.BigInteger) X509CertVersion(org.xipki.ca.api.profile.x509.X509CertVersion) BigInteger(java.math.BigInteger) TBSCertificate(org.bouncycastle.asn1.x509.TBSCertificate) X509Certificate(java.security.cert.X509Certificate) Certificate(org.bouncycastle.asn1.x509.Certificate) TBSCertificate(org.bouncycastle.asn1.x509.TBSCertificate)

Aggregations

IOException (java.io.IOException)1 BigInteger (java.math.BigInteger)1 NoSuchAlgorithmException (java.security.NoSuchAlgorithmException)1 CertificateException (java.security.cert.CertificateException)1 X509Certificate (java.security.cert.X509Certificate)1 Calendar (java.util.Calendar)1 Date (java.util.Date)1 LinkedList (java.util.LinkedList)1 AlgorithmIdentifier (org.bouncycastle.asn1.x509.AlgorithmIdentifier)1 Certificate (org.bouncycastle.asn1.x509.Certificate)1 TBSCertificate (org.bouncycastle.asn1.x509.TBSCertificate)1 CertValidity (org.xipki.ca.api.profile.CertValidity)1 CertprofileException (org.xipki.ca.api.profile.CertprofileException)1 X509CertVersion (org.xipki.ca.api.profile.x509.X509CertVersion)1 ValidationIssue (org.xipki.common.qa.ValidationIssue)1 ValidationResult (org.xipki.common.qa.ValidationResult)1