/**
* Fetches delta CRLs according to RFC 3280 section 5.2.4.
*
* @param currentDate The date for which the delta CRLs must be valid.
* @param paramsPKIX The extended PKIX parameters.
* @param completeCRL The complete CRL the delta CRL is for.
* @return A <code>Set</code> of <code>X509CRL</code>s with delta CRLs.
* @throws AnnotatedException if an exception occurs while picking the delta CRLs.
*/
protected static Set getDeltaCRLs(
Date currentDate, ExtendedPKIXParameters paramsPKIX, X509CRL completeCRL)
throws AnnotatedException {
X509CRLStoreSelector deltaSelect = new X509CRLStoreSelector();
// 5.2.4 (a)
try {
deltaSelect.addIssuerName(
CertPathValidatorUtilities.getIssuerPrincipal(completeCRL).getEncoded());
} catch (IOException e) {
throw new AnnotatedException("Cannot extract issuer from CRL.", e);
}
BigInteger completeCRLNumber = null;
try {
ASN1Primitive derObject =
CertPathValidatorUtilities.getExtensionValue(completeCRL, CRL_NUMBER);
if (derObject != null) {
completeCRLNumber = ASN1Integer.getInstance(derObject).getPositiveValue();
}
} catch (Exception e) {
throw new AnnotatedException("CRL number extension could not be extracted from CRL.", e);
}
// 5.2.4 (b)
byte[] idp = null;
try {
idp = completeCRL.getExtensionValue(ISSUING_DISTRIBUTION_POINT);
} catch (Exception e) {
throw new AnnotatedException(
"Issuing distribution point extension value could not be read.", e);
}
// 5.2.4 (d)
deltaSelect.setMinCRLNumber(
completeCRLNumber == null ? null : completeCRLNumber.add(BigInteger.valueOf(1)));
deltaSelect.setIssuingDistributionPoint(idp);
deltaSelect.setIssuingDistributionPointEnabled(true);
// 5.2.4 (c)
deltaSelect.setMaxBaseCRLNumber(completeCRLNumber);
// find delta CRLs
Set temp = CRL_UTIL.findCRLs(deltaSelect, paramsPKIX, currentDate);
Set result = new HashSet();
for (Iterator it = temp.iterator(); it.hasNext(); ) {
X509CRL crl = (X509CRL) it.next();
if (isDeltaCRL(crl)) {
result.add(crl);
}
}
return result;
}
/**
* Fetches complete CRLs according to RFC 3280.
*
* @param dp The distribution point for which the complete CRL
* @param cert The <code>X509Certificate</code> or {@link
* org.bouncycastle.x509.X509AttributeCertificate} for which the CRL should be searched.
* @param currentDate The date for which the delta CRLs must be valid.
* @param paramsPKIX The extended PKIX parameters.
* @return A <code>Set</code> of <code>X509CRL</code>s with complete CRLs.
* @throws AnnotatedException if an exception occurs while picking the CRLs or no CRLs are found.
*/
protected static Set getCompleteCRLs(
DistributionPoint dp, Object cert, Date currentDate, ExtendedPKIXParameters paramsPKIX)
throws AnnotatedException {
X509CRLStoreSelector crlselect = new X509CRLStoreSelector();
try {
Set issuers = new HashSet();
if (cert instanceof X509AttributeCertificate) {
issuers.add(((X509AttributeCertificate) cert).getIssuer().getPrincipals()[0]);
} else {
issuers.add(getEncodedIssuerPrincipal(cert));
}
CertPathValidatorUtilities.getCRLIssuersFromDistributionPoint(
dp, issuers, crlselect, paramsPKIX);
} catch (AnnotatedException e) {
throw new AnnotatedException("Could not get issuer information from distribution point.", e);
}
if (cert instanceof X509Certificate) {
crlselect.setCertificateChecking((X509Certificate) cert);
} else if (cert instanceof X509AttributeCertificate) {
crlselect.setAttrCertificateChecking((X509AttributeCertificate) cert);
}
crlselect.setCompleteCRLEnabled(true);
Set crls = CRL_UTIL.findCRLs(crlselect, paramsPKIX, currentDate);
if (crls.isEmpty()) {
if (cert instanceof X509AttributeCertificate) {
X509AttributeCertificate aCert = (X509AttributeCertificate) cert;
throw new AnnotatedException(
"No CRLs found for issuer \"" + aCert.getIssuer().getPrincipals()[0] + "\"");
} else {
X509Certificate xCert = (X509Certificate) cert;
throw new AnnotatedException(
"No CRLs found for issuer \"" + xCert.getIssuerX500Principal() + "\"");
}
}
return crls;
}
