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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.4.
package org.bouncycastle.x509;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.URL;
import java.security.GeneralSecurityException;
import java.security.PublicKey;
import java.security.SignatureException;
import java.security.cert.CertPath;
import java.security.cert.CertPathValidatorException;
import java.security.cert.Certificate;
import java.security.cert.CertificateExpiredException;
import java.security.cert.CertificateFactory;
import java.security.cert.CertificateNotYetValidException;
import java.security.cert.PKIXCertPathChecker;
import java.security.cert.PKIXParameters;
import java.security.cert.PolicyNode;
import java.security.cert.TrustAnchor;
import java.security.cert.X509CRL;
import java.security.cert.X509CRLEntry;
import java.security.cert.X509CertSelector;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Vector;
import javax.security.auth.x500.X500Principal;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1Enumerated;
import org.bouncycastle.asn1.ASN1IA5String;
import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.x509.AccessDescription;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.AuthorityInformationAccess;
import org.bouncycastle.asn1.x509.AuthorityKeyIdentifier;
import org.bouncycastle.asn1.x509.BasicConstraints;
import org.bouncycastle.asn1.x509.CRLDistPoint;
import org.bouncycastle.asn1.x509.DistributionPoint;
import org.bouncycastle.asn1.x509.DistributionPointName;
import org.bouncycastle.asn1.x509.Extension;
import org.bouncycastle.asn1.x509.GeneralName;
import org.bouncycastle.asn1.x509.GeneralNames;
import org.bouncycastle.asn1.x509.GeneralSubtree;
import org.bouncycastle.asn1.x509.IssuingDistributionPoint;
import org.bouncycastle.asn1.x509.NameConstraints;
import org.bouncycastle.asn1.x509.PolicyInformation;
import org.bouncycastle.asn1.x509.qualified.Iso4217CurrencyCode;
import org.bouncycastle.asn1.x509.qualified.MonetaryValue;
import org.bouncycastle.asn1.x509.qualified.QCStatement;
import org.bouncycastle.i18n.ErrorBundle;
import org.bouncycastle.i18n.LocaleString;
import org.bouncycastle.i18n.filter.TrustedInput;
import org.bouncycastle.i18n.filter.UntrustedInput;
import org.bouncycastle.i18n.filter.UntrustedUrlInput;
import org.bouncycastle.jce.provider.AnnotatedException;
import org.bouncycastle.jce.provider.PKIXNameConstraintValidator;
import org.bouncycastle.jce.provider.PKIXNameConstraintValidatorException;
import org.bouncycastle.jce.provider.PKIXPolicyNode;
import org.bouncycastle.util.Integers;
import org.bouncycastle.util.Objects;
/**
* PKIXCertPathReviewer
* Validation of X.509 Certificate Paths. Tries to find as much errors in the Path as possible.
*/
public class PKIXCertPathReviewer extends CertPathValidatorUtilities
{
private static final String QC_STATEMENT = Extension.qCStatements.getId();
private static final String CRL_DIST_POINTS = Extension.cRLDistributionPoints.getId();
private static final String AUTH_INFO_ACCESS = Extension.authorityInfoAccess.getId();
private static final String RESOURCE_NAME = "org.bouncycastle.x509.CertPathReviewerMessages";
// input parameters
protected CertPath certPath;
protected PKIXParameters pkixParams;
protected Date currentDate;
protected Date validDate;
// state variables
protected List certs;
protected int n;
// output variables
protected List[] notifications;
protected List[] errors;
protected TrustAnchor trustAnchor;
protected PublicKey subjectPublicKey;
protected PolicyNode policyTree;
private boolean initialized;
/**
* Initializes the PKIXCertPathReviewer with the given {@link CertPath} and {@link PKIXParameters} params
* @param certPath the {@link CertPath} to validate
* @param params the {@link PKIXParameters} to use
* @throws CertPathReviewerException if the certPath is empty
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} is already initialized
*/
public void init(CertPath certPath, PKIXParameters params)
throws CertPathReviewerException
{
if (initialized)
{
throw new IllegalStateException("object is already initialized!");
}
initialized = true;
// check input parameters
if (certPath == null)
{
throw new NullPointerException("certPath was null");
}
List cs = (List )certPath.getCertificates();
if (cs.size() != 1)
{
// check trust anchor not included in certPath as it will
// cause havoc otherwise.
Set tas = new HashSet();
for (Iterator it = params.getTrustAnchors().iterator(); it.hasNext();)
{
TrustAnchor ta = (TrustAnchor)it.next();
tas.add(ta.getTrustedCert());
}
List certs = new ArrayList();
for (int i = 0; i != cs.size(); i++)
{
// don't include the trust anchor
if (!tas.contains(cs.get(i)))
{
certs.add(cs.get(i));
}
}
try
{
CertificateFactory cf = CertificateFactory.getInstance("X.509", "BC");
this.certPath = cf.generateCertPath(certs);
}
catch (GeneralSecurityException e)
{
throw new IllegalStateException("unable to rebuild certpath");
}
this.certs = certs;
}
else
{
this.certPath = certPath;
this.certs = certPath.getCertificates();
}
n = certs.size();
if (certs.isEmpty())
{
throw new CertPathReviewerException(
new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.emptyCertPath"));
}
pkixParams = (PKIXParameters) params.clone();
// 6.1.1 - Inputs
// a) done
// b)
currentDate = new Date();
validDate = getValidityDate(pkixParams, currentDate);
// c) part of pkixParams
// d) done at the beginning of checkSignatures
// e) f) g) part of pkixParams
// initialize output parameters
notifications = null;
errors = null;
trustAnchor = null;
subjectPublicKey = null;
policyTree = null;
}
/**
* Creates a PKIXCertPathReviewer and initializes it with the given {@link CertPath} and {@link PKIXParameters} params
* @param certPath the {@link CertPath} to validate
* @param params the {@link PKIXParameters} to use
* @throws CertPathReviewerException if the certPath is empty
*/
public PKIXCertPathReviewer(CertPath certPath, PKIXParameters params)
throws CertPathReviewerException
{
init(certPath, params);
}
/**
* Creates an empty PKIXCertPathReviewer. Don't forget to call init() to initialize the object.
*/
public PKIXCertPathReviewer()
{
// do nothing
}
/**
*
* @return the CertPath that was validated
*/
public CertPath getCertPath()
{
return certPath;
}
/**
*
* @return the size of the CertPath
*/
public int getCertPathSize()
{
return n;
}
/**
* Returns an Array of Lists which contains a List of global error messages
* and a List of error messages for each certificate in the path.
* The global error List is at index 0. The error lists for each certificate at index 1 to n.
* The error messages are of type.
* @return the Array of Lists which contain the error messages
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} was not initialized
*/
public List[] getErrors()
{
doChecks();
return errors;
}
/**
* Returns an List of error messages for the certificate at the given index in the CertPath.
* If index == -1 then the list of global errors is returned with errors not specific to a certificate.
* @param index the index of the certificate in the CertPath
* @return List of error messages for the certificate
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} was not initialized
*/
public List getErrors(int index)
{
doChecks();
return errors[index + 1];
}
/**
* Returns an Array of Lists which contains a List of global notification messages
* and a List of botification messages for each certificate in the path.
* The global notificatio List is at index 0. The notification lists for each certificate at index 1 to n.
* The error messages are of type.
* @return the Array of Lists which contain the notification messages
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} was not initialized
*/
public List[] getNotifications()
{
doChecks();
return notifications;
}
/**
* Returns an List of notification messages for the certificate at the given index in the CertPath.
* If index == -1 then the list of global notifications is returned with notifications not specific to a certificate.
* @param index the index of the certificate in the CertPath
* @return List of notification messages for the certificate
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} was not initialized
*/
public List getNotifications(int index)
{
doChecks();
return notifications[index + 1];
}
/**
*
* @return the valid policy tree, null if no valid policy exists.
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} was not initialized
*/
public PolicyNode getPolicyTree()
{
doChecks();
return policyTree;
}
/**
*
* @return the PublicKey if the last certificate in the CertPath
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} was not initialized
*/
public PublicKey getSubjectPublicKey()
{
doChecks();
return subjectPublicKey;
}
/**
*
* @return the TrustAnchor for the CertPath, null if no valid TrustAnchor was found.
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} was not initialized
*/
public TrustAnchor getTrustAnchor()
{
doChecks();
return trustAnchor;
}
/**
*
* @return if the CertPath is valid
* @throws IllegalStateException if the {@link PKIXCertPathReviewer} was not initialized
*/
public boolean isValidCertPath()
{
doChecks();
boolean valid = true;
for (int i = 0; i < errors.length; i++)
{
if (!errors[i].isEmpty())
{
valid = false;
break;
}
}
return valid;
}
protected void addNotification(ErrorBundle msg)
{
notifications[0].add(msg);
}
protected void addNotification(ErrorBundle msg, int index)
{
if (index < -1 || index >= n)
{
throw new IndexOutOfBoundsException();
}
notifications[index + 1].add(msg);
}
protected void addError(ErrorBundle msg)
{
errors[0].add(msg);
}
protected void addError(ErrorBundle msg, int index)
{
if (index < -1 || index >= n)
{
throw new IndexOutOfBoundsException();
}
errors[index + 1].add(msg);
}
protected void doChecks()
{
if (!initialized)
{
throw new IllegalStateException("Object not initialized. Call init() first.");
}
if (notifications == null)
{
// initialize lists
notifications = new List[n+1];
errors = new List[n+1];
for (int i = 0; i < notifications.length; i++)
{
notifications[i] = new ArrayList();
errors[i] = new ArrayList();
}
// check Signatures
checkSignatures();
// check Name Constraints
checkNameConstraints();
// check Path Length
checkPathLength();
// check Policy
checkPolicy();
// check other critical extensions
checkCriticalExtensions();
}
}
private void checkNameConstraints()
{
X509Certificate cert = null;
//
// Setup
//
// (b) and (c)
PKIXNameConstraintValidator nameConstraintValidator = new PKIXNameConstraintValidator();
//
// process each certificate except the last in the path
//
int index;
int i;
try
{
for (index = certs.size()-1; index>0; index--)
{
i = n - index;
//
// certificate processing
//
cert = (X509Certificate) certs.get(index);
// b),c)
if (!isSelfIssued(cert))
{
X500Principal principal = getSubjectPrincipal(cert);
ASN1InputStream aIn = new ASN1InputStream(new ByteArrayInputStream(principal.getEncoded()));
ASN1Sequence dns;
try
{
dns = (ASN1Sequence)aIn.readObject();
}
catch (IOException e)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.ncSubjectNameError",
new Object[] {new UntrustedInput(principal)});
throw new CertPathReviewerException(msg,e,certPath,index);
}
try
{
nameConstraintValidator.checkPermittedDN(dns);
}
catch (PKIXNameConstraintValidatorException cpve)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.notPermittedDN",
new Object[] {new UntrustedInput(principal.getName())});
throw new CertPathReviewerException(msg,cpve,certPath,index);
}
try
{
nameConstraintValidator.checkExcludedDN(dns);
}
catch (PKIXNameConstraintValidatorException cpve)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.excludedDN",
new Object[] {new UntrustedInput(principal.getName())});
throw new CertPathReviewerException(msg,cpve,certPath,index);
}
ASN1Sequence altName;
try
{
altName = (ASN1Sequence)getExtensionValue(cert, SUBJECT_ALTERNATIVE_NAME);
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.subjAltNameExtError");
throw new CertPathReviewerException(msg,ae,certPath,index);
}
if (altName != null)
{
for (int j = 0; j < altName.size(); j++)
{
GeneralName name = GeneralName.getInstance(altName.getObjectAt(j));
try
{
nameConstraintValidator.checkPermitted(name);
nameConstraintValidator.checkExcluded(name);
}
catch (PKIXNameConstraintValidatorException cpve)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.notPermittedEmail",
new Object[] {new UntrustedInput(name)});
throw new CertPathReviewerException(msg,cpve,certPath,index);
}
// switch(o.getTagNo()) TODO - move resources to PKIXNameConstraints
// {
// case 1:
// String email = DERIA5String.getInstance(o, true).getString();
//
// try
// {
// checkPermittedEmail(permittedSubtreesEmail, email);
// }
// catch (CertPathValidatorException cpve)
// {
// ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.notPermittedEmail",
// new Object[] {new UntrustedInput(email)});
// throw new CertPathReviewerException(msg,cpve,certPath,index);
// }
//
// try
// {
// checkExcludedEmail(excludedSubtreesEmail, email);
// }
// catch (CertPathValidatorException cpve)
// {
// ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.excludedEmail",
// new Object[] {new UntrustedInput(email)});
// throw new CertPathReviewerException(msg,cpve,certPath,index);
// }
//
// break;
// case 4:
// ASN1Sequence altDN = ASN1Sequence.getInstance(o, true);
//
// try
// {
// checkPermittedDN(permittedSubtreesDN, altDN);
// }
// catch (CertPathValidatorException cpve)
// {
// X509Name altDNName = new X509Name(altDN);
// ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.notPermittedDN",
// new Object[] {new UntrustedInput(altDNName)});
// throw new CertPathReviewerException(msg,cpve,certPath,index);
// }
//
// try
// {
// checkExcludedDN(excludedSubtreesDN, altDN);
// }
// catch (CertPathValidatorException cpve)
// {
// X509Name altDNName = new X509Name(altDN);
// ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.excludedDN",
// new Object[] {new UntrustedInput(altDNName)});
// throw new CertPathReviewerException(msg,cpve,certPath,index);
// }
//
// break;
// case 7:
// byte[] ip = ASN1OctetString.getInstance(o, true).getOctets();
//
// try
// {
// checkPermittedIP(permittedSubtreesIP, ip);
// }
// catch (CertPathValidatorException cpve)
// {
// ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.notPermittedIP",
// new Object[] {IPtoString(ip)});
// throw new CertPathReviewerException(msg,cpve,certPath,index);
// }
//
// try
// {
// checkExcludedIP(excludedSubtreesIP, ip);
// }
// catch (CertPathValidatorException cpve)
// {
// ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.excludedIP",
// new Object[] {IPtoString(ip)});
// throw new CertPathReviewerException(msg,cpve,certPath,index);
// }
// }
}
}
}
//
// prepare for next certificate
//
//
// (g) handle the name constraints extension
//
ASN1Sequence ncSeq;
try
{
ncSeq = (ASN1Sequence)getExtensionValue(cert, NAME_CONSTRAINTS);
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.ncExtError");
throw new CertPathReviewerException(msg,ae,certPath,index);
}
if (ncSeq != null)
{
NameConstraints nc = NameConstraints.getInstance(ncSeq);
//
// (g) (1) permitted subtrees
//
GeneralSubtree[] permitted = nc.getPermittedSubtrees();
if (permitted != null)
{
nameConstraintValidator.intersectPermittedSubtree(permitted);
}
//
// (g) (2) excluded subtrees
//
GeneralSubtree[] excluded = nc.getExcludedSubtrees();
if (excluded != null)
{
for (int c = 0; c != excluded.length; c++)
{
nameConstraintValidator.addExcludedSubtree(excluded[c]);
}
}
}
} // for
}
catch (CertPathReviewerException cpre)
{
addError(cpre.getErrorMessage(),cpre.getIndex());
}
}
/*
* checks: - path length constraints and reports - total path length
*/
private void checkPathLength()
{
// init
int maxPathLength = n;
int totalPathLength = 0;
X509Certificate cert = null;
int i;
for (int index = certs.size() - 1; index > 0; index--)
{
i = n - index;
cert = (X509Certificate) certs.get(index);
// l)
if (!isSelfIssued(cert))
{
if (maxPathLength <= 0)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.pathLengthExtended");
addError(msg);
}
maxPathLength--;
totalPathLength++;
}
// m)
BasicConstraints bc;
try
{
bc = BasicConstraints.getInstance(getExtensionValue(cert,
BASIC_CONSTRAINTS));
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.processLengthConstError");
addError(msg,index);
bc = null;
}
if (bc != null)
{
BigInteger _pathLengthConstraint = bc.getPathLenConstraint();
if (_pathLengthConstraint != null)
{
int _plc = _pathLengthConstraint.intValue();
if (_plc < maxPathLength)
{
maxPathLength = _plc;
}
}
}
}
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.totalPathLength",
new Object[]{Integers.valueOf(totalPathLength)});
addNotification(msg);
}
/*
* checks: - signatures - name chaining - validity of certificates - todo:
* if certificate revoked (if specified in the parameters)
*/
private void checkSignatures()
{
// 1.6.1 - Inputs
// d)
TrustAnchor trust = null;
X500Principal trustPrincipal = null;
// validation date
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.certPathValidDate",
new Object[] {new TrustedInput(validDate), new TrustedInput(currentDate)});
addNotification(msg);
}
// find trust anchors
try
{
X509Certificate cert = (X509Certificate) certs.get(certs.size() - 1);
Collection trustColl = getTrustAnchors(cert,pkixParams.getTrustAnchors());
if (trustColl.size() > 1)
{
// conflicting trust anchors
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
"CertPathReviewer.conflictingTrustAnchors",
new Object[]{Integers.valueOf(trustColl.size()),
new UntrustedInput(cert.getIssuerX500Principal())});
addError(msg);
}
else if (trustColl.isEmpty())
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
"CertPathReviewer.noTrustAnchorFound",
new Object[]{new UntrustedInput(cert.getIssuerX500Principal()),
Integers.valueOf(pkixParams.getTrustAnchors().size())});
addError(msg);
}
else
{
PublicKey trustPublicKey;
trust = (TrustAnchor) trustColl.iterator().next();
if (trust.getTrustedCert() != null)
{
trustPublicKey = trust.getTrustedCert().getPublicKey();
}
else
{
trustPublicKey = trust.getCAPublicKey();
}
try
{
CertPathValidatorUtilities.verifyX509Certificate(cert, trustPublicKey,
pkixParams.getSigProvider());
}
catch (SignatureException e)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.trustButInvalidCert");
addError(msg);
}
catch (Exception e)
{
// do nothing, error occurs again later
}
}
}
catch (CertPathReviewerException cpre)
{
addError(cpre.getErrorMessage());
}
catch (Throwable t)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
"CertPathReviewer.unknown",
new Object[] {new UntrustedInput(t.getMessage()), new UntrustedInput(t)});
addError(msg);
}
if (trust != null)
{
// get the name of the trustAnchor
X509Certificate sign = trust.getTrustedCert();
try
{
if (sign != null)
{
trustPrincipal = getSubjectPrincipal(sign);
}
else
{
trustPrincipal = new X500Principal(trust.getCAName());
}
}
catch (IllegalArgumentException ex)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.trustDNInvalid",
new Object[] {new UntrustedInput(trust.getCAName())});
addError(msg);
}
// test key usages of the trust anchor
if (sign != null)
{
boolean[] ku = sign.getKeyUsage();
if (ku != null && (ku.length <= 5 || !ku[5]))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.trustKeyUsage");
addNotification(msg);
}
}
}
// 1.6.2 - Initialization
PublicKey workingPublicKey = null;
X500Principal workingIssuerName = trustPrincipal;
X509Certificate sign = null;
AlgorithmIdentifier workingAlgId = null;
ASN1ObjectIdentifier workingPublicKeyAlgorithm = null;
ASN1Encodable workingPublicKeyParameters = null;
if (trust != null)
{
sign = trust.getTrustedCert();
if (sign != null)
{
workingPublicKey = sign.getPublicKey();
}
else
{
workingPublicKey = trust.getCAPublicKey();
}
try
{
workingAlgId = getAlgorithmIdentifier(workingPublicKey);
workingPublicKeyAlgorithm = workingAlgId.getAlgorithm();
workingPublicKeyParameters = workingAlgId.getParameters();
}
catch (CertPathValidatorException ex)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.trustPubKeyError");
addError(msg);
workingAlgId = null;
}
}
// Basic cert checks
X509Certificate cert = null;
int i;
for (int index = certs.size() - 1; index >= 0; index--)
{
//
// 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 initialied the
// first time from the TrustAnchor
//
cert = (X509Certificate) certs.get(index);
// verify signature
if (workingPublicKey != null)
{
try
{
CertPathValidatorUtilities.verifyX509Certificate(cert, workingPublicKey,
pkixParams.getSigProvider());
}
catch (GeneralSecurityException ex)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.signatureNotVerified",
new Object[] {ex.getMessage(),ex,ex.getClass().getName()});
addError(msg,index);
}
}
else if (isSelfIssued(cert))
{
try
{
CertPathValidatorUtilities.verifyX509Certificate(cert, cert.getPublicKey(),
pkixParams.getSigProvider());
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.rootKeyIsValidButNotATrustAnchor");
addError(msg, index);
}
catch (GeneralSecurityException ex)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.signatureNotVerified",
new Object[] {ex.getMessage(),ex,ex.getClass().getName()});
addError(msg,index);
}
}
else
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.NoIssuerPublicKey");
// if there is an authority key extension add the serial and issuer of the missing certificate
byte[] akiBytes = cert.getExtensionValue(Extension.authorityKeyIdentifier.getId());
if (akiBytes != null)
{
AuthorityKeyIdentifier aki = AuthorityKeyIdentifier.getInstance(
DEROctetString.getInstance(akiBytes).getOctets());
GeneralNames issuerNames = aki.getAuthorityCertIssuer();
if (issuerNames != null)
{
GeneralName name = issuerNames.getNames()[0];
BigInteger serial = aki.getAuthorityCertSerialNumber();
if (serial != null)
{
Object[] extraArgs = {new LocaleString(RESOURCE_NAME, "missingIssuer"), " \"", name ,
"\" ", new LocaleString(RESOURCE_NAME, "missingSerial") , " ", serial};
msg.setExtraArguments(extraArgs);
}
}
}
addError(msg,index);
}
// certificate valid?
try
{
cert.checkValidity(validDate);
}
catch (CertificateNotYetValidException cnve)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.certificateNotYetValid",
new Object[] {new TrustedInput(cert.getNotBefore())});
addError(msg,index);
}
catch (CertificateExpiredException cee)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.certificateExpired",
new Object[] {new TrustedInput(cert.getNotAfter())});
addError(msg,index);
}
// certificate revoked?
if (pkixParams.isRevocationEnabled())
{
// read crl distribution points extension
CRLDistPoint crlDistPoints = null;
try
{
ASN1Primitive crl_dp = getExtensionValue(cert,CRL_DIST_POINTS);
if (crl_dp != null)
{
crlDistPoints = CRLDistPoint.getInstance(crl_dp);
}
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlDistPtExtError");
addError(msg,index);
}
// read authority information access extension
AuthorityInformationAccess authInfoAcc = null;
try
{
ASN1Primitive auth_info_acc = getExtensionValue(cert,AUTH_INFO_ACCESS);
if (auth_info_acc != null)
{
authInfoAcc = AuthorityInformationAccess.getInstance(auth_info_acc);
}
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlAuthInfoAccError");
addError(msg,index);
}
Vector crlDistPointUrls = getCRLDistUrls(crlDistPoints);
Vector ocspUrls = getOCSPUrls(authInfoAcc);
// add notifications with the crl distribution points
// output crl distribution points
Iterator urlIt = crlDistPointUrls.iterator();
while (urlIt.hasNext())
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlDistPoint",
new Object[] {new UntrustedUrlInput(urlIt.next())});
addNotification(msg,index);
}
// output ocsp urls
urlIt = ocspUrls.iterator();
while (urlIt.hasNext())
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.ocspLocation",
new Object[] {new UntrustedUrlInput(urlIt.next())});
addNotification(msg,index);
}
// TODO also support Netscapes revocation-url and/or OCSP instead of CRLs for revocation checking
// check CRLs
try
{
checkRevocation(pkixParams, cert, validDate, sign, workingPublicKey, crlDistPointUrls, ocspUrls, index);
}
catch (CertPathReviewerException cpre)
{
addError(cpre.getErrorMessage(),index);
}
}
// certificate issuer correct
if (workingIssuerName != null && !cert.getIssuerX500Principal().equals(workingIssuerName))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.certWrongIssuer",
new Object[] {workingIssuerName.getName(),
cert.getIssuerX500Principal().getName()});
addError(msg,index);
}
//
// prepare for next certificate
//
if (i != n)
{
if (cert != null && cert.getVersion() == 1)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.noCACert");
addError(msg,index);
}
// k)
BasicConstraints bc;
try
{
bc = BasicConstraints.getInstance(getExtensionValue(cert,
BASIC_CONSTRAINTS));
if (bc != null)
{
if (!bc.isCA())
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.noCACert");
addError(msg,index);
}
}
else
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.noBasicConstraints");
addError(msg,index);
}
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.errorProcesingBC");
addError(msg,index);
}
// n)
boolean[] keyUsage = cert.getKeyUsage();
if (keyUsage != null && (keyUsage.length <= KEY_CERT_SIGN || !keyUsage[KEY_CERT_SIGN]))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.noCertSign");
addError(msg,index);
}
} // if
// set signing certificate for next round
sign = cert;
// c)
workingIssuerName = cert.getSubjectX500Principal();
// d) e) f)
try
{
workingPublicKey = getNextWorkingKey(certs, index);
workingAlgId = getAlgorithmIdentifier(workingPublicKey);
workingPublicKeyAlgorithm = workingAlgId.getAlgorithm();
workingPublicKeyParameters = workingAlgId.getParameters();
}
catch (CertPathValidatorException ex)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.pubKeyError");
addError(msg,index);
workingAlgId = null;
workingPublicKeyAlgorithm = null;
workingPublicKeyParameters = null;
}
} // for
trustAnchor = trust;
subjectPublicKey = workingPublicKey;
}
private void checkPolicy()
{
//
// 6.1.1 Inputs
//
// c) Initial Policy Set
Set userInitialPolicySet = pkixParams.getInitialPolicies();
// e) f) g) are part of pkixParams
//
// 6.1.2 Initialization
//
// a) valid policy tree
List[] policyNodes = new ArrayList[n + 1];
for (int j = 0; j < policyNodes.length; j++)
{
policyNodes[j] = new ArrayList();
}
Set policySet = new HashSet();
policySet.add(ANY_POLICY);
PKIXPolicyNode validPolicyTree = new PKIXPolicyNode(new ArrayList(), 0,
policySet, null, new HashSet(), ANY_POLICY, false);
policyNodes[0].add(validPolicyTree);
// d) explicit policy
int explicitPolicy;
if (pkixParams.isExplicitPolicyRequired())
{
explicitPolicy = 0;
}
else
{
explicitPolicy = n + 1;
}
// e) inhibit any policy
int inhibitAnyPolicy;
if (pkixParams.isAnyPolicyInhibited())
{
inhibitAnyPolicy = 0;
}
else
{
inhibitAnyPolicy = n + 1;
}
// f) policy mapping
int policyMapping;
if (pkixParams.isPolicyMappingInhibited())
{
policyMapping = 0;
}
else
{
policyMapping = n + 1;
}
Set acceptablePolicies = null;
//
// 6.1.3 Basic Certificate processing
//
X509Certificate cert = null;
int index;
int i;
try
{
for (index = certs.size() - 1; index >= 0; index--)
{
// i as defined in the algorithm description
i = n - index;
// set certificate to be checked in this round
cert = (X509Certificate) certs.get(index);
// d) process policy information
ASN1Sequence certPolicies;
try
{
certPolicies = (ASN1Sequence) getExtensionValue(
cert, CERTIFICATE_POLICIES);
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyExtError");
throw new CertPathReviewerException(msg,ae,certPath,index);
}
if (certPolicies != null && validPolicyTree != null)
{
// d) 1)
Enumeration e = certPolicies.getObjects();
Set pols = new HashSet();
while (e.hasMoreElements())
{
PolicyInformation pInfo = PolicyInformation.getInstance(e.nextElement());
ASN1ObjectIdentifier pOid = pInfo.getPolicyIdentifier();
pols.add(pOid.getId());
if (!ANY_POLICY.equals(pOid.getId()))
{
Set pq;
try
{
pq = getQualifierSet(pInfo.getPolicyQualifiers());
}
catch (CertPathValidatorException cpve)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyQualifierError");
throw new CertPathReviewerException(msg,cpve,certPath,index);
}
boolean match = processCertD1i(i, policyNodes, pOid, pq);
if (!match)
{
processCertD1ii(i, policyNodes, pOid, pq);
}
}
}
if (acceptablePolicies == null || acceptablePolicies.contains(ANY_POLICY))
{
acceptablePolicies = pols;
}
else
{
Iterator it = acceptablePolicies.iterator();
Set t1 = new HashSet();
while (it.hasNext())
{
Object o = it.next();
if (pols.contains(o))
{
t1.add(o);
}
}
acceptablePolicies = t1;
}
// d) 2)
if ((inhibitAnyPolicy > 0) || ((i < n) && isSelfIssued(cert)))
{
e = certPolicies.getObjects();
while (e.hasMoreElements())
{
PolicyInformation pInfo = PolicyInformation.getInstance(e.nextElement());
if (ANY_POLICY.equals(pInfo.getPolicyIdentifier().getId()))
{
Set _apq;
try
{
_apq = getQualifierSet(pInfo.getPolicyQualifiers());
}
catch (CertPathValidatorException cpve)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyQualifierError");
throw new CertPathReviewerException(msg,cpve,certPath,index);
}
List _nodes = policyNodes[i - 1];
for (int k = 0; k < _nodes.size(); k++)
{
PKIXPolicyNode _node = (PKIXPolicyNode) _nodes.get(k);
Iterator _policySetIter = _node.getExpectedPolicies().iterator();
while (_policySetIter.hasNext())
{
Object _tmp = _policySetIter.next();
String _policy;
if (_tmp instanceof String)
{
_policy = (String) _tmp;
}
else if (_tmp instanceof ASN1ObjectIdentifier)
{
_policy = ((ASN1ObjectIdentifier) _tmp).getId();
}
else
{
continue;
}
boolean _found = false;
Iterator _childrenIter = _node
.getChildren();
while (_childrenIter.hasNext())
{
PKIXPolicyNode _child = (PKIXPolicyNode) _childrenIter.next();
if (_policy.equals(_child.getValidPolicy()))
{
_found = true;
}
}
if (!_found)
{
Set _newChildExpectedPolicies = new HashSet();
_newChildExpectedPolicies.add(_policy);
PKIXPolicyNode _newChild = new PKIXPolicyNode(
new ArrayList(), i,
_newChildExpectedPolicies,
_node, _apq, _policy, false);
_node.addChild(_newChild);
policyNodes[i].add(_newChild);
}
}
}
break;
}
}
}
//
// (d) (3)
//
for (int j = (i - 1); j >= 0; j--)
{
List nodes = policyNodes[j];
for (int k = 0; k < nodes.size(); k++)
{
PKIXPolicyNode node = (PKIXPolicyNode) nodes.get(k);
if (!node.hasChildren())
{
validPolicyTree = removePolicyNode(
validPolicyTree, policyNodes, node);
if (validPolicyTree == null)
{
break;
}
}
}
}
//
// d (4)
//
Set criticalExtensionOids = cert.getCriticalExtensionOIDs();
if (criticalExtensionOids != null)
{
boolean critical = criticalExtensionOids.contains(CERTIFICATE_POLICIES);
List nodes = policyNodes[i];
for (int j = 0; j < nodes.size(); j++)
{
PKIXPolicyNode node = (PKIXPolicyNode) nodes.get(j);
node.setCritical(critical);
}
}
}
// e)
if (certPolicies == null)
{
validPolicyTree = null;
}
// f)
if (explicitPolicy <= 0 && validPolicyTree == null)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.noValidPolicyTree");
throw new CertPathReviewerException(msg);
}
//
// 6.1.4 preparation for next Certificate
//
if (i != n)
{
// a)
ASN1Primitive pm;
try
{
pm = getExtensionValue(cert, POLICY_MAPPINGS);
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyMapExtError");
throw new CertPathReviewerException(msg,ae,certPath,index);
}
if (pm != null)
{
ASN1Sequence mappings = (ASN1Sequence) pm;
for (int j = 0; j < mappings.size(); j++)
{
ASN1Sequence mapping = (ASN1Sequence) mappings.getObjectAt(j);
ASN1ObjectIdentifier ip_id = (ASN1ObjectIdentifier) mapping.getObjectAt(0);
ASN1ObjectIdentifier sp_id = (ASN1ObjectIdentifier) mapping.getObjectAt(1);
if (ANY_POLICY.equals(ip_id.getId()))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.invalidPolicyMapping");
throw new CertPathReviewerException(msg,certPath,index);
}
if (ANY_POLICY.equals(sp_id.getId()))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.invalidPolicyMapping");
throw new CertPathReviewerException(msg,certPath,index);
}
}
}
// b)
if (pm != null)
{
ASN1Sequence mappings = (ASN1Sequence)pm;
Map m_idp = new HashMap();
Set s_idp = new HashSet();
for (int j = 0; j < mappings.size(); j++)
{
ASN1Sequence mapping = (ASN1Sequence)mappings.getObjectAt(j);
String id_p = ((ASN1ObjectIdentifier)mapping.getObjectAt(0)).getId();
String sd_p = ((ASN1ObjectIdentifier)mapping.getObjectAt(1)).getId();
Set tmp;
if (!m_idp.containsKey(id_p))
{
tmp = new HashSet();
tmp.add(sd_p);
m_idp.put(id_p, tmp);
s_idp.add(id_p);
}
else
{
tmp = (Set)m_idp.get(id_p);
tmp.add(sd_p);
}
}
Iterator it_idp = s_idp.iterator();
while (it_idp.hasNext())
{
String id_p = (String)it_idp.next();
//
// (1)
//
if (policyMapping > 0)
{
try
{
prepareNextCertB1(i,policyNodes,id_p,m_idp,cert);
}
catch (AnnotatedException ae)
{
// error processing certificate policies extension
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyExtError");
throw new CertPathReviewerException(msg,ae,certPath,index);
}
catch (CertPathValidatorException cpve)
{
// error building qualifier set
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyQualifierError");
throw new CertPathReviewerException(msg,cpve,certPath,index);
}
//
// (2)
//
}
else if (policyMapping <= 0)
{
validPolicyTree = prepareNextCertB2(i,policyNodes,id_p,validPolicyTree);
}
}
}
//
// h)
//
if (!isSelfIssued(cert))
{
// (1)
if (explicitPolicy != 0)
{
explicitPolicy--;
}
// (2)
if (policyMapping != 0)
{
policyMapping--;
}
// (3)
if (inhibitAnyPolicy != 0)
{
inhibitAnyPolicy--;
}
}
//
// i)
//
try
{
ASN1Sequence pc = (ASN1Sequence) getExtensionValue(cert,POLICY_CONSTRAINTS);
if (pc != null)
{
Enumeration policyConstraints = pc.getObjects();
while (policyConstraints.hasMoreElements())
{
ASN1TaggedObject constraint = (ASN1TaggedObject) policyConstraints.nextElement();
int tmpInt;
switch (constraint.getTagNo())
{
case 0:
tmpInt = ASN1Integer.getInstance(constraint, false).intValueExact();
if (tmpInt < explicitPolicy)
{
explicitPolicy = tmpInt;
}
break;
case 1:
tmpInt = ASN1Integer.getInstance(constraint, false).intValueExact();
if (tmpInt < policyMapping)
{
policyMapping = tmpInt;
}
break;
}
}
}
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyConstExtError");
throw new CertPathReviewerException(msg,certPath,index);
}
//
// j)
//
try
{
ASN1Integer iap = (ASN1Integer)getExtensionValue(cert, INHIBIT_ANY_POLICY);
if (iap != null)
{
int _inhibitAnyPolicy = iap.intValueExact();
if (_inhibitAnyPolicy < inhibitAnyPolicy)
{
inhibitAnyPolicy = _inhibitAnyPolicy;
}
}
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyInhibitExtError");
throw new CertPathReviewerException(msg,certPath,index);
}
}
}
//
// 6.1.5 Wrap up
//
//
// a)
//
if (!isSelfIssued(cert) && explicitPolicy > 0)
{
explicitPolicy--;
}
//
// b)
//
try
{
ASN1Sequence pc = (ASN1Sequence) getExtensionValue(cert, POLICY_CONSTRAINTS);
if (pc != null)
{
Enumeration policyConstraints = pc.getObjects();
while (policyConstraints.hasMoreElements())
{
ASN1TaggedObject constraint = (ASN1TaggedObject)policyConstraints.nextElement();
switch (constraint.getTagNo())
{
case 0:
int tmpInt = ASN1Integer.getInstance(constraint, false).intValueExact();
if (tmpInt == 0)
{
explicitPolicy = 0;
}
break;
}
}
}
}
catch (AnnotatedException e)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.policyConstExtError");
throw new CertPathReviewerException(msg,certPath,index);
}
//
// (g)
//
PKIXPolicyNode intersection;
//
// (g) (i)
//
if (validPolicyTree == null)
{
if (pkixParams.isExplicitPolicyRequired())
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.explicitPolicy");
throw new CertPathReviewerException(msg,certPath,index);
}
intersection = null;
}
else if (isAnyPolicy(userInitialPolicySet)) // (g) (ii)
{
if (pkixParams.isExplicitPolicyRequired())
{
if (acceptablePolicies.isEmpty())
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.explicitPolicy");
throw new CertPathReviewerException(msg,certPath,index);
}
else
{
Set _validPolicyNodeSet = new HashSet();
for (int j = 0; j < policyNodes.length; j++)
{
List _nodeDepth = policyNodes[j];
for (int k = 0; k < _nodeDepth.size(); k++)
{
PKIXPolicyNode _node = (PKIXPolicyNode)_nodeDepth.get(k);
if (ANY_POLICY.equals(_node.getValidPolicy()))
{
Iterator _iter = _node.getChildren();
while (_iter.hasNext())
{
_validPolicyNodeSet.add(_iter.next());
}
}
}
}
Iterator _vpnsIter = _validPolicyNodeSet.iterator();
while (_vpnsIter.hasNext())
{
PKIXPolicyNode _node = (PKIXPolicyNode)_vpnsIter.next();
String _validPolicy = _node.getValidPolicy();
if (!acceptablePolicies.contains(_validPolicy))
{
//validPolicyTree = removePolicyNode(validPolicyTree, policyNodes, _node);
}
}
if (validPolicyTree != null)
{
for (int j = (n - 1); j >= 0; j--)
{
List nodes = policyNodes[j];
for (int k = 0; k < nodes.size(); k++)
{
PKIXPolicyNode node = (PKIXPolicyNode)nodes.get(k);
if (!node.hasChildren())
{
validPolicyTree = removePolicyNode(validPolicyTree, policyNodes, node);
}
}
}
}
}
}
intersection = validPolicyTree;
}
else
{
//
// (g) (iii)
//
// This implementation is not exactly same as the one described in RFC3280.
// However, as far as the validation result is concerned, both produce
// adequate result. The only difference is whether AnyPolicy is remain
// in the policy tree or not.
//
// (g) (iii) 1
//
Set _validPolicyNodeSet = new HashSet();
for (int j = 0; j < policyNodes.length; j++)
{
List _nodeDepth = policyNodes[j];
for (int k = 0; k < _nodeDepth.size(); k++)
{
PKIXPolicyNode _node = (PKIXPolicyNode)_nodeDepth.get(k);
if (ANY_POLICY.equals(_node.getValidPolicy()))
{
Iterator _iter = _node.getChildren();
while (_iter.hasNext())
{
PKIXPolicyNode _c_node = (PKIXPolicyNode)_iter.next();
if (!ANY_POLICY.equals(_c_node.getValidPolicy()))
{
_validPolicyNodeSet.add(_c_node);
}
}
}
}
}
//
// (g) (iii) 2
//
Iterator _vpnsIter = _validPolicyNodeSet.iterator();
while (_vpnsIter.hasNext())
{
PKIXPolicyNode _node = (PKIXPolicyNode)_vpnsIter.next();
String _validPolicy = _node.getValidPolicy();
if (!userInitialPolicySet.contains(_validPolicy))
{
validPolicyTree = removePolicyNode(validPolicyTree, policyNodes, _node);
}
}
//
// (g) (iii) 4
//
if (validPolicyTree != null)
{
for (int j = (n - 1); j >= 0; j--)
{
List nodes = policyNodes[j];
for (int k = 0; k < nodes.size(); k++)
{
PKIXPolicyNode node = (PKIXPolicyNode)nodes.get(k);
if (!node.hasChildren())
{
validPolicyTree = removePolicyNode(validPolicyTree, policyNodes, node);
}
}
}
}
intersection = validPolicyTree;
}
if ((explicitPolicy <= 0) && (intersection == null))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.invalidPolicy");
throw new CertPathReviewerException(msg);
}
validPolicyTree = intersection;
}
catch (CertPathReviewerException cpre)
{
addError(cpre.getErrorMessage(),cpre.getIndex());
validPolicyTree = null;
}
}
private void checkCriticalExtensions()
{
//
// initialise CertPathChecker's
//
List pathCheckers = pkixParams.getCertPathCheckers();
Iterator certIter = pathCheckers.iterator();
try
{
try
{
while (certIter.hasNext())
{
((PKIXCertPathChecker)certIter.next()).init(false);
}
}
catch (CertPathValidatorException cpve)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.certPathCheckerError",
new Object[] {cpve.getMessage(),cpve,cpve.getClass().getName()});
throw new CertPathReviewerException(msg,cpve);
}
//
// process critical extensions for each certificate
//
X509Certificate cert = null;
int index;
for (index = certs.size()-1; index >= 0; index--)
{
cert = (X509Certificate) certs.get(index);
Set criticalExtensions = cert.getCriticalExtensionOIDs();
if (criticalExtensions == null || criticalExtensions.isEmpty())
{
continue;
}
// remove already processed extensions
criticalExtensions.remove(KEY_USAGE);
criticalExtensions.remove(CERTIFICATE_POLICIES);
criticalExtensions.remove(POLICY_MAPPINGS);
criticalExtensions.remove(INHIBIT_ANY_POLICY);
criticalExtensions.remove(ISSUING_DISTRIBUTION_POINT);
criticalExtensions.remove(DELTA_CRL_INDICATOR);
criticalExtensions.remove(POLICY_CONSTRAINTS);
criticalExtensions.remove(BASIC_CONSTRAINTS);
criticalExtensions.remove(SUBJECT_ALTERNATIVE_NAME);
criticalExtensions.remove(NAME_CONSTRAINTS);
if (index == 0) // EE certificate
{
criticalExtensions.remove(Extension.extendedKeyUsage.getId());
}
// process qcStatements extension
if (criticalExtensions.contains(QC_STATEMENT))
{
if (processQcStatements(cert,index))
{
criticalExtensions.remove(QC_STATEMENT);
}
}
Iterator tmpIter = pathCheckers.iterator();
while (tmpIter.hasNext())
{
try
{
((PKIXCertPathChecker)tmpIter.next()).check(cert, criticalExtensions);
}
catch (CertPathValidatorException e)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.criticalExtensionError",
new Object[] {e.getMessage(),e,e.getClass().getName()});
throw new CertPathReviewerException(msg,e.getCause(),certPath,index);
}
}
if (!criticalExtensions.isEmpty())
{
ErrorBundle msg;
Iterator it = criticalExtensions.iterator();
while (it.hasNext())
{
msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.unknownCriticalExt",
new Object[] {new ASN1ObjectIdentifier((String) it.next())});
addError(msg, index);
}
}
}
}
catch (CertPathReviewerException cpre)
{
addError(cpre.getErrorMessage(),cpre.getIndex());
}
}
private boolean processQcStatements(
X509Certificate cert,
int index)
{
try
{
boolean unknownStatement = false;
ASN1Sequence qcSt = (ASN1Sequence) getExtensionValue(cert,QC_STATEMENT);
for (int j = 0; j < qcSt.size(); j++)
{
QCStatement stmt = QCStatement.getInstance(qcSt.getObjectAt(j));
if (QCStatement.id_etsi_qcs_QcCompliance.equals(stmt.getStatementId()))
{
// process statement - just write a notification that the certificate contains this statement
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.QcEuCompliance");
addNotification(msg,index);
}
else if (QCStatement.id_qcs_pkixQCSyntax_v1.equals(stmt.getStatementId()))
{
// process statement - just recognize the statement
}
else if (QCStatement.id_etsi_qcs_QcSSCD.equals(stmt.getStatementId()))
{
// process statement - just write a notification that the certificate contains this statement
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.QcSSCD");
addNotification(msg,index);
}
else if (QCStatement.id_etsi_qcs_LimiteValue.equals(stmt.getStatementId()))
{
// process statement - write a notification containing the limit value
MonetaryValue limit = MonetaryValue.getInstance(stmt.getStatementInfo());
Iso4217CurrencyCode currency = limit.getCurrency();
double value = limit.getAmount().doubleValue() * Math.pow(10,limit.getExponent().doubleValue());
ErrorBundle msg;
if (limit.getCurrency().isAlphabetic())
{
msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.QcLimitValueAlpha",
new Object[] {limit.getCurrency().getAlphabetic(),
new TrustedInput(new Double(value)),
limit});
}
else
{
msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.QcLimitValueNum",
new Object[]{Integers.valueOf(limit.getCurrency().getNumeric()),
new TrustedInput(new Double(value)),
limit});
}
addNotification(msg,index);
}
else
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.QcUnknownStatement",
new Object[] {stmt.getStatementId(),new UntrustedInput(stmt)});
addNotification(msg,index);
unknownStatement = true;
}
}
return !unknownStatement;
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.QcStatementExtError");
addError(msg,index);
}
return false;
}
private String IPtoString(byte[] ip)
{
String result;
try
{
result = InetAddress.getByAddress(ip).getHostAddress();
}
catch (Exception e)
{
StringBuffer b = new StringBuffer();
for (int i = 0; i != ip.length; i++)
{
b.append(Integer.toHexString(ip[i] & 0xff));
b.append(' ');
}
result = b.toString();
}
return result;
}
protected void checkRevocation(PKIXParameters paramsPKIX,
X509Certificate cert,
Date validDate,
X509Certificate sign,
PublicKey workingPublicKey,
Vector crlDistPointUrls,
Vector ocspUrls,
int index)
throws CertPathReviewerException
{
checkCRLs(paramsPKIX, cert, validDate, sign, workingPublicKey, crlDistPointUrls, index);
}
protected void checkCRLs(
PKIXParameters paramsPKIX,
X509Certificate cert,
Date validDate,
X509Certificate sign,
PublicKey workingPublicKey,
Vector crlDistPointUrls,
int index)
throws CertPathReviewerException
{
X509CRLStoreSelector crlselect;
crlselect = new X509CRLStoreSelector();
try
{
crlselect.addIssuerName(getEncodedIssuerPrincipal(cert).getEncoded());
}
catch (IOException e)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlIssuerException");
throw new CertPathReviewerException(msg,e);
}
crlselect.setCertificateChecking(cert);
Iterator crl_iter;
try
{
Collection crl_coll = PKIXCRLUtil.findCRLs(crlselect, paramsPKIX);
crl_iter = crl_coll.iterator();
if (crl_coll.isEmpty())
{
// notification - no local crls found
crl_coll = PKIXCRLUtil.findCRLs(new X509CRLStoreSelector(),paramsPKIX);
Iterator it = crl_coll.iterator();
List nonMatchingCrlNames = new ArrayList();
while (it.hasNext())
{
nonMatchingCrlNames.add(((X509CRL) it.next()).getIssuerX500Principal());
}
int numbOfCrls = nonMatchingCrlNames.size();
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
"CertPathReviewer.noCrlInCertstore",
new Object[]{new UntrustedInput(crlselect.getIssuerNames()),
new UntrustedInput(nonMatchingCrlNames),
Integers.valueOf(numbOfCrls)});
addNotification(msg,index);
}
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlExtractionError",
new Object[] {ae.getCause().getMessage(),ae.getCause(),ae.getCause().getClass().getName()});
addError(msg,index);
crl_iter = new ArrayList().iterator();
}
boolean validCrlFound = false;
X509CRL crl = null;
while (crl_iter.hasNext())
{
crl = (X509CRL)crl_iter.next();
Date thisUpdate = crl.getThisUpdate();
Date nextUpdate = crl.getNextUpdate();
Object[] arguments = new Object[]{ new TrustedInput(thisUpdate), new TrustedInput(nextUpdate) };
if (nextUpdate == null || validDate.before(nextUpdate))
{
validCrlFound = true;
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.localValidCRL", arguments);
addNotification(msg,index);
break;
}
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.localInvalidCRL", arguments);
addNotification(msg,index);
}
// if no valid crl was found in the CertStores try to get one from a
// crl distribution point
if (!validCrlFound)
{
X500Principal certIssuer = cert.getIssuerX500Principal();
X509CRL onlineCRL = null;
Iterator urlIt = crlDistPointUrls.iterator();
while (urlIt.hasNext())
{
try
{
String location = (String) urlIt.next();
onlineCRL = getCRL(location);
if (onlineCRL != null)
{
X500Principal crlIssuer = onlineCRL.getIssuerX500Principal();
// check if crl issuer is correct
if (!certIssuer.equals(crlIssuer))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.onlineCRLWrongCA",
new Object[]{ new UntrustedInput(crlIssuer.getName()), new UntrustedInput(certIssuer.getName()),
new UntrustedUrlInput(location) });
addNotification(msg,index);
continue;
}
Date thisUpdate = onlineCRL.getThisUpdate();
Date nextUpdate = onlineCRL.getNextUpdate();
Object[] arguments = new Object[]{ new TrustedInput(thisUpdate), new TrustedInput(nextUpdate),
new UntrustedUrlInput(location) };
if (nextUpdate == null || validDate.before(nextUpdate))
{
validCrlFound = true;
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.onlineValidCRL",
arguments);
addNotification(msg, index);
crl = onlineCRL;
break;
}
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.onlineInvalidCRL",
arguments);
addNotification(msg, index);
}
}
catch (CertPathReviewerException cpre)
{
addNotification(cpre.getErrorMessage(),index);
}
}
}
// check the crl
X509CRLEntry crl_entry;
if (crl != null)
{
if (sign != null)
{
boolean[] keyUsage = sign.getKeyUsage();
if (keyUsage != null && (keyUsage.length <= CRL_SIGN || !keyUsage[CRL_SIGN]))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.noCrlSigningPermited");
throw new CertPathReviewerException(msg);
}
}
if (workingPublicKey != null)
{
try
{
crl.verify(workingPublicKey, "BC");
}
catch (Exception e)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlVerifyFailed");
throw new CertPathReviewerException(msg,e);
}
}
else // issuer public key not known
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlNoIssuerPublicKey");
throw new CertPathReviewerException(msg);
}
crl_entry = crl.getRevokedCertificate(cert.getSerialNumber());
if (crl_entry != null)
{
String reason = null;
if (crl_entry.hasExtensions())
{
ASN1Enumerated reasonCode;
try
{
reasonCode = ASN1Enumerated.getInstance(getExtensionValue(crl_entry, Extension.reasonCode.getId()));
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlReasonExtError");
throw new CertPathReviewerException(msg,ae);
}
if (reasonCode != null)
{
reason = crlReasons[reasonCode.intValueExact()];
}
}
if (reason == null)
{
reason = crlReasons[7]; // unknown
}
// i18n reason
LocaleString ls = new LocaleString(RESOURCE_NAME, reason);
if (!validDate.before(crl_entry.getRevocationDate()))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.certRevoked",
new Object[] {new TrustedInput(crl_entry.getRevocationDate()),ls});
throw new CertPathReviewerException(msg);
}
else // cert was revoked after validation date
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.revokedAfterValidation",
new Object[] {new TrustedInput(crl_entry.getRevocationDate()),ls});
addNotification(msg,index);
}
}
else // cert is not revoked
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.notRevoked");
addNotification(msg,index);
}
//
// warn if a new crl is available
//
Date nextUpdate = crl.getNextUpdate();
if (!(nextUpdate == null || validDate.before(nextUpdate)))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.crlUpdateAvailable",
new Object[]{ new TrustedInput(nextUpdate) });
addNotification(msg, index);
}
//
// check the DeltaCRL indicator, base point and the issuing distribution point
//
ASN1Primitive idp;
try
{
idp = getExtensionValue(crl, ISSUING_DISTRIBUTION_POINT);
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.distrPtExtError");
throw new CertPathReviewerException(msg);
}
ASN1Primitive dci;
try
{
dci = getExtensionValue(crl, DELTA_CRL_INDICATOR);
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.deltaCrlExtError");
throw new CertPathReviewerException(msg);
}
if (dci != null)
{
X509CRLStoreSelector baseSelect = new X509CRLStoreSelector();
try
{
baseSelect.addIssuerName(getIssuerPrincipal(crl).getEncoded());
}
catch (IOException e)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlIssuerException");
throw new CertPathReviewerException(msg,e);
}
baseSelect.setMinCRLNumber(((ASN1Integer)dci).getPositiveValue());
try
{
baseSelect.setMaxCRLNumber(((ASN1Integer)getExtensionValue(crl, CRL_NUMBER)).getPositiveValue().subtract(BigInteger.valueOf(1)));
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlNbrExtError");
throw new CertPathReviewerException(msg,ae);
}
boolean foundBase = false;
Iterator it;
try
{
it = PKIXCRLUtil.findCRLs(baseSelect, paramsPKIX).iterator();
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlExtractionError");
throw new CertPathReviewerException(msg,ae);
}
while (it.hasNext())
{
X509CRL base = (X509CRL)it.next();
ASN1Primitive baseIdp;
try
{
baseIdp = getExtensionValue(base, ISSUING_DISTRIBUTION_POINT);
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.distrPtExtError");
throw new CertPathReviewerException(msg,ae);
}
if (Objects.areEqual(idp, baseIdp))
{
foundBase = true;
break;
}
}
if (!foundBase)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.noBaseCRL");
throw new CertPathReviewerException(msg);
}
}
if (idp != null)
{
IssuingDistributionPoint p = IssuingDistributionPoint.getInstance(idp);
BasicConstraints bc = null;
try
{
bc = BasicConstraints.getInstance(getExtensionValue(cert, BASIC_CONSTRAINTS));
}
catch (AnnotatedException ae)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlBCExtError");
throw new CertPathReviewerException(msg,ae);
}
if (p.onlyContainsUserCerts() && (bc != null && bc.isCA()))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlOnlyUserCert");
throw new CertPathReviewerException(msg);
}
if (p.onlyContainsCACerts() && (bc == null || !bc.isCA()))
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlOnlyCaCert");
throw new CertPathReviewerException(msg);
}
if (p.onlyContainsAttributeCerts())
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.crlOnlyAttrCert");
throw new CertPathReviewerException(msg);
}
}
}
if (!validCrlFound)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.noValidCrlFound");
throw new CertPathReviewerException(msg);
}
}
protected Vector getCRLDistUrls(CRLDistPoint crlDistPoints)
{
Vector urls = new Vector();
if (crlDistPoints != null)
{
DistributionPoint[] distPoints = crlDistPoints.getDistributionPoints();
for (int i = 0; i < distPoints.length; i++)
{
DistributionPointName dp_name = distPoints[i].getDistributionPoint();
if (dp_name.getType() == DistributionPointName.FULL_NAME)
{
GeneralName[] generalNames = GeneralNames.getInstance(dp_name.getName()).getNames();
for (int j = 0; j < generalNames.length; j++)
{
if (generalNames[j].getTagNo() == GeneralName.uniformResourceIdentifier)
{
String url = ((ASN1IA5String)generalNames[j].getName()).getString();
urls.add(url);
}
}
}
}
}
return urls;
}
protected Vector getOCSPUrls(AuthorityInformationAccess authInfoAccess)
{
Vector urls = new Vector();
if (authInfoAccess != null)
{
AccessDescription[] ads = authInfoAccess.getAccessDescriptions();
for (int i = 0; i < ads.length; i++)
{
if (ads[i].getAccessMethod().equals(AccessDescription.id_ad_ocsp))
{
GeneralName name = ads[i].getAccessLocation();
if (name.getTagNo() == GeneralName.uniformResourceIdentifier)
{
String url = ((ASN1IA5String)name.getName()).getString();
urls.add(url);
}
}
}
}
return urls;
}
private X509CRL getCRL(String location) throws CertPathReviewerException
{
X509CRL result = null;
try
{
URL url = new URL(location);
if (url.getProtocol().equals("http") || url.getProtocol().equals("https"))
{
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setUseCaches(false);
//conn.setConnectTimeout(2000);
conn.setDoInput(true);
conn.connect();
if (conn.getResponseCode() == HttpURLConnection.HTTP_OK)
{
CertificateFactory cf = CertificateFactory.getInstance("X.509","BC");
result = (X509CRL) cf.generateCRL(conn.getInputStream());
}
else
{
throw new Exception(conn.getResponseMessage());
}
}
}
catch (Exception e)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
"CertPathReviewer.loadCrlDistPointError",
new Object[] {new UntrustedInput(location),
e.getMessage(),e,e.getClass().getName()});
throw new CertPathReviewerException(msg);
}
return result;
}
protected Collection getTrustAnchors(X509Certificate cert, Set trustanchors) throws CertPathReviewerException
{
Collection trustColl = new ArrayList();
Iterator it = trustanchors.iterator();
X509CertSelector certSelectX509 = new X509CertSelector();
try
{
certSelectX509.setSubject(getEncodedIssuerPrincipal(cert).getEncoded());
byte[] ext = cert.getExtensionValue(Extension.authorityKeyIdentifier.getId());
if (ext != null)
{
ASN1OctetString oct = (ASN1OctetString)ASN1Primitive.fromByteArray(ext);
AuthorityKeyIdentifier authID = AuthorityKeyIdentifier.getInstance(ASN1Primitive.fromByteArray(oct.getOctets()));
// we ignore key identifier as if set, selector expects parent to have subjectKeyID
BigInteger serial = authID.getAuthorityCertSerialNumber();
if (serial != null)
{
certSelectX509.setSerialNumber(authID.getAuthorityCertSerialNumber());
}
else
{
byte[] keyID = authID.getKeyIdentifier();
if (keyID != null)
{
certSelectX509.setSubjectKeyIdentifier(new DEROctetString(keyID).getEncoded());
}
}
}
}
catch (IOException ex)
{
ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,"CertPathReviewer.trustAnchorIssuerError");
throw new CertPathReviewerException(msg);
}
while (it.hasNext())
{
TrustAnchor trust = (TrustAnchor) it.next();
if (trust.getTrustedCert() != null)
{
if (certSelectX509.match(trust.getTrustedCert()))
{
trustColl.add(trust);
}
}
else if (trust.getCAName() != null && trust.getCAPublicKey() != null)
{
X500Principal certIssuer = getEncodedIssuerPrincipal(cert);
X500Principal caName = new X500Principal(trust.getCAName());
if (certIssuer.equals(caName))
{
trustColl.add(trust);
}
}
}
return trustColl;
}
}
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