{
throw new ExtCertPathValidatorException("Subject of trust anchor could not be (re)encoded.", ex, certPath,
-1);
}
AlgorithmIdentifier workingAlgId = null;
try
{
workingAlgId = CertPathValidatorUtilities.getAlgorithmIdentifier(workingPublicKey);
}
catch (CertPathValidatorException e)
{
throw new ExtCertPathValidatorException(
"Algorithm identifier of public key of trust anchor could not be read.", e, certPath, -1);
}
DERObjectIdentifier workingPublicKeyAlgorithm = workingAlgId.getObjectId();
DEREncodable workingPublicKeyParameters = workingAlgId.getParameters();
//
// (k)
//
int maxPathLength = n;
//
// 6.1.3
//
if (paramsPKIX.getTargetConstraints() != null
&& !paramsPKIX.getTargetConstraints().match((X509Certificate) certs.get(0)))
{
throw new ExtCertPathValidatorException(
"Target certificate in certification path does not match targetConstraints.", null, certPath, 0);
}
//
// initialize CertPathChecker's
//
List pathCheckers = paramsPKIX.getCertPathCheckers();
certIter = pathCheckers.iterator();
while (certIter.hasNext())
{
((PKIXCertPathChecker) certIter.next()).init(false);
}
X509Certificate cert = null;
for (index = certs.size() - 1; index >= 0; index--)
{
// try
// {
//
// i as defined in the algorithm description
//
i = n - index;
//
// set certificate to be checked in this round
// sign and workingPublicKey and workingIssuerName are set
// at the end of the for loop and initialized the
// first time from the TrustAnchor
//
cert = (X509Certificate) certs.get(index);
boolean verificationAlreadyPerformed = (index == certs.size() - 1);
//
// 6.1.3
//
RFC3280CertPathUtilities.processCertA(certPath, paramsPKIX, index, workingPublicKey,
verificationAlreadyPerformed, workingIssuerName, sign);
RFC3280CertPathUtilities.processCertBC(certPath, index, nameConstraintValidator);
validPolicyTree = RFC3280CertPathUtilities.processCertD(certPath, index, acceptablePolicies,
validPolicyTree, policyNodes, inhibitAnyPolicy);
validPolicyTree = RFC3280CertPathUtilities.processCertE(certPath, index, validPolicyTree);
RFC3280CertPathUtilities.processCertF(certPath, index, validPolicyTree, explicitPolicy);
//
// 6.1.4
//
if (i != n)
{
if (cert != null && cert.getVersion() == 1)
{
throw new CertPathValidatorException("Version 1 certificates can't be used as CA ones.", null,
certPath, index);
}
RFC3280CertPathUtilities.prepareNextCertA(certPath, index);
validPolicyTree = RFC3280CertPathUtilities.prepareCertB(certPath, index, policyNodes, validPolicyTree,
policyMapping);
RFC3280CertPathUtilities.prepareNextCertG(certPath, index, nameConstraintValidator);
// (h)
explicitPolicy = RFC3280CertPathUtilities.prepareNextCertH1(certPath, index, explicitPolicy);
policyMapping = RFC3280CertPathUtilities.prepareNextCertH2(certPath, index, policyMapping);
inhibitAnyPolicy = RFC3280CertPathUtilities.prepareNextCertH3(certPath, index, inhibitAnyPolicy);
//
// (i)
//
explicitPolicy = RFC3280CertPathUtilities.prepareNextCertI1(certPath, index, explicitPolicy);
policyMapping = RFC3280CertPathUtilities.prepareNextCertI2(certPath, index, policyMapping);
// (j)
inhibitAnyPolicy = RFC3280CertPathUtilities.prepareNextCertJ(certPath, index, inhibitAnyPolicy);
// (k)
RFC3280CertPathUtilities.prepareNextCertK(certPath, index);
// (l)
maxPathLength = RFC3280CertPathUtilities.prepareNextCertL(certPath, index, maxPathLength);
// (m)
maxPathLength = RFC3280CertPathUtilities.prepareNextCertM(certPath, index, maxPathLength);
// (n)
RFC3280CertPathUtilities.prepareNextCertN(certPath, index);
Set criticalExtensions = cert.getCriticalExtensionOIDs();
if (criticalExtensions != null)
{
criticalExtensions = new HashSet(criticalExtensions);
// these extensions are handled by the algorithm
criticalExtensions.remove(RFC3280CertPathUtilities.KEY_USAGE);
criticalExtensions.remove(RFC3280CertPathUtilities.CERTIFICATE_POLICIES);
criticalExtensions.remove(RFC3280CertPathUtilities.POLICY_MAPPINGS);
criticalExtensions.remove(RFC3280CertPathUtilities.INHIBIT_ANY_POLICY);
criticalExtensions.remove(RFC3280CertPathUtilities.ISSUING_DISTRIBUTION_POINT);
criticalExtensions.remove(RFC3280CertPathUtilities.DELTA_CRL_INDICATOR);
criticalExtensions.remove(RFC3280CertPathUtilities.POLICY_CONSTRAINTS);
criticalExtensions.remove(RFC3280CertPathUtilities.BASIC_CONSTRAINTS);
criticalExtensions.remove(RFC3280CertPathUtilities.SUBJECT_ALTERNATIVE_NAME);
criticalExtensions.remove(RFC3280CertPathUtilities.NAME_CONSTRAINTS);
}
else
{
criticalExtensions = new HashSet();
}
// (o)
RFC3280CertPathUtilities.prepareNextCertO(certPath, index, criticalExtensions, pathCheckers);
// set signing certificate for next round
sign = cert;
// (c)
workingIssuerName = CertPathValidatorUtilities.getSubjectPrincipal(sign);
// (d)
try
{
workingPublicKey = CertPathValidatorUtilities.getNextWorkingKey(certPath.getCertificates(), index);
}
catch (CertPathValidatorException e)
{
throw new CertPathValidatorException("Next working key could not be retrieved.", e, certPath, index);
}
workingAlgId = CertPathValidatorUtilities.getAlgorithmIdentifier(workingPublicKey);
// (f)
workingPublicKeyAlgorithm = workingAlgId.getObjectId();
// (e)
workingPublicKeyParameters = workingAlgId.getParameters();
}
}
//
// 6.1.5 Wrap-up procedure