private static void CheckCrl(DistributionPoint dp, IX509AttributeCertificate attrCert, PkixParameters paramsPKIX, DateTime validDate, X509Certificate issuerCert, CertStatus certStatus, ReasonsMask reasonMask, IList certPathCerts)
{
if (attrCert.GetExtensionValue(X509Extensions.NoRevAvail) != null)
{
return;
}
DateTime utcNow = DateTime.UtcNow;
if (validDate.CompareTo(utcNow) > 0)
{
throw new Exception("Validation time is in future.");
}
ISet completeCrls = PkixCertPathValidatorUtilities.GetCompleteCrls(dp, attrCert, utcNow, paramsPKIX);
bool flag = false;
Exception ex = null;
IEnumerator enumerator = completeCrls.GetEnumerator();
while (enumerator.MoveNext() && certStatus.Status == 11 && !reasonMask.IsAllReasons)
{
try
{
X509Crl x509Crl = (X509Crl)enumerator.Current;
ReasonsMask reasonsMask = Rfc3280CertPathUtilities.ProcessCrlD(x509Crl, dp);
if (reasonsMask.HasNewReasons(reasonMask))
{
ISet keys = Rfc3280CertPathUtilities.ProcessCrlF(x509Crl, attrCert, null, null, paramsPKIX, certPathCerts);
AsymmetricKeyParameter key = Rfc3280CertPathUtilities.ProcessCrlG(x509Crl, keys);
X509Crl x509Crl2 = null;
if (paramsPKIX.IsUseDeltasEnabled)
{
ISet deltaCrls = PkixCertPathValidatorUtilities.GetDeltaCrls(utcNow, paramsPKIX, x509Crl);
x509Crl2 = Rfc3280CertPathUtilities.ProcessCrlH(deltaCrls, key);
}
if (paramsPKIX.ValidityModel != 1 && attrCert.NotAfter.CompareTo(x509Crl.ThisUpdate) < 0)
{
throw new Exception("No valid CRL for current time found.");
}
Rfc3280CertPathUtilities.ProcessCrlB1(dp, attrCert, x509Crl);
Rfc3280CertPathUtilities.ProcessCrlB2(dp, attrCert, x509Crl);
Rfc3280CertPathUtilities.ProcessCrlC(x509Crl2, x509Crl, paramsPKIX);
Rfc3280CertPathUtilities.ProcessCrlI(validDate, x509Crl2, attrCert, certStatus, paramsPKIX);
Rfc3280CertPathUtilities.ProcessCrlJ(validDate, x509Crl, attrCert, certStatus);
if (certStatus.Status == 8)
{
certStatus.Status = 11;
}
reasonMask.AddReasons(reasonsMask);
flag = true;
}
}
catch (Exception ex2)
{
ex = ex2;
}
}
if (!flag)
{
throw ex;
}
}
public virtual PkixCertPathValidatorResult Validate(
PkixCertPath certPath,
PkixParameters paramsPkix)
{
if (paramsPkix.GetTrustAnchors() == null)
{
throw new ArgumentException(
"trustAnchors is null, this is not allowed for certification path validation.",
"parameters");
}
//
// 6.1.1 - inputs
//
//
// (a)
//
IList certs = certPath.Certificates;
int n = certs.Count;
if (certs.Count == 0)
{
throw new PkixCertPathValidatorException("Certification path is empty.", null, certPath, 0);
}
//
// (b)
//
// DateTime validDate = PkixCertPathValidatorUtilities.GetValidDate(paramsPkix);
//
// (c)
//
ISet userInitialPolicySet = paramsPkix.GetInitialPolicies();
//
// (d)
//
TrustAnchor trust;
try
{
trust = PkixCertPathValidatorUtilities.FindTrustAnchor(
(X509Certificate)certs[certs.Count - 1],
paramsPkix.GetTrustAnchors());
}
catch (Exception e)
{
throw new PkixCertPathValidatorException(e.Message, e, certPath, certs.Count - 1);
}
if (trust == null)
{
throw new PkixCertPathValidatorException("Trust anchor for certification path not found.", null, certPath, -1);
}
//
// (e), (f), (g) are part of the paramsPkix object.
//
IEnumerator certIter;
int index = 0;
int i;
// Certificate for each interation of the validation loop
// Signature information for each iteration of the validation loop
//
// 6.1.2 - setup
//
//
// (a)
//
IList[] policyNodes = new IList[n + 1];
for (int j = 0; j < policyNodes.Length; j++)
{
policyNodes[j] = Platform.CreateArrayList();
}
ISet policySet = new HashSet();
policySet.Add(Rfc3280CertPathUtilities.ANY_POLICY);
PkixPolicyNode validPolicyTree = new PkixPolicyNode(Platform.CreateArrayList(), 0, policySet, null, new HashSet(),
Rfc3280CertPathUtilities.ANY_POLICY, false);
policyNodes[0].Add(validPolicyTree);
//
// (b) and (c)
//
PkixNameConstraintValidator nameConstraintValidator = new PkixNameConstraintValidator();
// (d)
//
int explicitPolicy;
ISet acceptablePolicies = new HashSet();
if (paramsPkix.IsExplicitPolicyRequired)
{
explicitPolicy = 0;
}
else
{
explicitPolicy = n + 1;
}
//
// (e)
//
int inhibitAnyPolicy;
if (paramsPkix.IsAnyPolicyInhibited)
{
inhibitAnyPolicy = 0;
}
else
{
inhibitAnyPolicy = n + 1;
}
//
// (f)
//
int policyMapping;
if (paramsPkix.IsPolicyMappingInhibited)
{
policyMapping = 0;
}
else
{
policyMapping = n + 1;
}
//
// (g), (h), (i), (j)
//
AsymmetricKeyParameter workingPublicKey;
X509Name workingIssuerName;
X509Certificate sign = trust.TrustedCert;
try
{
if (sign != null)
{
workingIssuerName = sign.SubjectDN;
workingPublicKey = sign.GetPublicKey();
}
else
{
workingIssuerName = new X509Name(trust.CAName);
workingPublicKey = trust.CAPublicKey;
}
}
catch (ArgumentException ex)
{
throw new PkixCertPathValidatorException("Subject of trust anchor could not be (re)encoded.", ex, certPath,
-1);
}
AlgorithmIdentifier workingAlgId = null;
try
{
workingAlgId = PkixCertPathValidatorUtilities.GetAlgorithmIdentifier(workingPublicKey);
}
catch (PkixCertPathValidatorException e)
{
throw new PkixCertPathValidatorException(
"Algorithm identifier of public key of trust anchor could not be read.", e, certPath, -1);
}
// DerObjectIdentifier workingPublicKeyAlgorithm = workingAlgId.ObjectID;
// Asn1Encodable workingPublicKeyParameters = workingAlgId.Parameters;
//
// (k)
//
int maxPathLength = n;
//
// 6.1.3
//
X509CertStoreSelector certConstraints = paramsPkix.GetTargetCertConstraints();
if (certConstraints != null && !certConstraints.Match((X509Certificate)certs[0]))
{
throw new PkixCertPathValidatorException(
"Target certificate in certification path does not match targetConstraints.", null, certPath, 0);
}
//
// initialize CertPathChecker's
//
IList pathCheckers = paramsPkix.GetCertPathCheckers();
certIter = pathCheckers.GetEnumerator();
while (certIter.MoveNext())
{
((PkixCertPathChecker)certIter.Current).Init(false);
}
X509Certificate cert = null;
for (index = certs.Count - 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[index];
//
// 6.1.3
//
Rfc3280CertPathUtilities.ProcessCertA(certPath, paramsPkix, index, workingPublicKey,
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.Version == 1)
{
throw new PkixCertPathValidatorException(
"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);
ISet criticalExtensions1 = cert.GetCriticalExtensionOids();
if (criticalExtensions1 != null)
{
criticalExtensions1 = new HashSet(criticalExtensions1);
// these extensions are handled by the algorithm
criticalExtensions1.Remove(X509Extensions.KeyUsage.Id);
criticalExtensions1.Remove(X509Extensions.CertificatePolicies.Id);
criticalExtensions1.Remove(X509Extensions.PolicyMappings.Id);
criticalExtensions1.Remove(X509Extensions.InhibitAnyPolicy.Id);
criticalExtensions1.Remove(X509Extensions.IssuingDistributionPoint.Id);
criticalExtensions1.Remove(X509Extensions.DeltaCrlIndicator.Id);
criticalExtensions1.Remove(X509Extensions.PolicyConstraints.Id);
criticalExtensions1.Remove(X509Extensions.BasicConstraints.Id);
criticalExtensions1.Remove(X509Extensions.SubjectAlternativeName.Id);
criticalExtensions1.Remove(X509Extensions.NameConstraints.Id);
}
else
{
criticalExtensions1 = new HashSet();
}
// (o)
Rfc3280CertPathUtilities.PrepareNextCertO(certPath, index, criticalExtensions1, pathCheckers);
// set signing certificate for next round
sign = cert;
// (c)
workingIssuerName = sign.SubjectDN;
// (d)
try
{
workingPublicKey = PkixCertPathValidatorUtilities.GetNextWorkingKey(certPath.Certificates, index);
}
catch (PkixCertPathValidatorException e)
{
throw new PkixCertPathValidatorException("Next working key could not be retrieved.", e, certPath, index);
}
workingAlgId = PkixCertPathValidatorUtilities.GetAlgorithmIdentifier(workingPublicKey);
// (f)
// workingPublicKeyAlgorithm = workingAlgId.ObjectID;
// (e)
// workingPublicKeyParameters = workingAlgId.Parameters;
}
}
//
// 6.1.5 Wrap-up procedure
//
explicitPolicy = Rfc3280CertPathUtilities.WrapupCertA(explicitPolicy, cert);
explicitPolicy = Rfc3280CertPathUtilities.WrapupCertB(certPath, index + 1, explicitPolicy);
//
// (c) (d) and (e) are already done
//
//
// (f)
//
ISet criticalExtensions = cert.GetCriticalExtensionOids();
if (criticalExtensions != null)
{
criticalExtensions = new HashSet(criticalExtensions);
// Requires .Id
// these extensions are handled by the algorithm
criticalExtensions.Remove(X509Extensions.KeyUsage.Id);
criticalExtensions.Remove(X509Extensions.CertificatePolicies.Id);
criticalExtensions.Remove(X509Extensions.PolicyMappings.Id);
criticalExtensions.Remove(X509Extensions.InhibitAnyPolicy.Id);
criticalExtensions.Remove(X509Extensions.IssuingDistributionPoint.Id);
criticalExtensions.Remove(X509Extensions.DeltaCrlIndicator.Id);
criticalExtensions.Remove(X509Extensions.PolicyConstraints.Id);
criticalExtensions.Remove(X509Extensions.BasicConstraints.Id);
criticalExtensions.Remove(X509Extensions.SubjectAlternativeName.Id);
criticalExtensions.Remove(X509Extensions.NameConstraints.Id);
criticalExtensions.Remove(X509Extensions.CrlDistributionPoints.Id);
}
else
{
criticalExtensions = new HashSet();
}
Rfc3280CertPathUtilities.WrapupCertF(certPath, index + 1, pathCheckers, criticalExtensions);
PkixPolicyNode intersection = Rfc3280CertPathUtilities.WrapupCertG(certPath, paramsPkix, userInitialPolicySet,
index + 1, policyNodes, validPolicyTree, acceptablePolicies);
if ((explicitPolicy > 0) || (intersection != null))
{
return(new PkixCertPathValidatorResult(trust, intersection, cert.GetPublicKey()));
}
throw new PkixCertPathValidatorException("Path processing failed on policy.", null, certPath, index);
}
/**
*
* Checks a distribution point for revocation information for the
* certificate <code>attrCert</code>.
*
* @param dp The distribution point to consider.
* @param attrCert The attribute certificate which should be checked.
* @param paramsPKIX PKIX parameters.
* @param validDate The date when the certificate revocation status should
* be checked.
* @param issuerCert Certificate to check if it is revoked.
* @param reasonMask The reasons mask which is already checked.
* @param certPathCerts The certificates of the certification path to be
* checked.
* @throws Exception if the certificate is revoked or the status
* cannot be checked or some error occurs.
*/
private static void CheckCrl(
DistributionPoint dp,
IX509AttributeCertificate attrCert,
PkixParameters paramsPKIX,
DateTime validDate,
X509Certificate issuerCert,
CertStatus certStatus,
ReasonsMask reasonMask,
IList certPathCerts)
{
/*
* 4.3.6 No Revocation Available
*
* The noRevAvail extension, defined in [X.509-2000], allows an AC
* issuer to indicate that no revocation information will be made
* available for this AC.
*/
if (attrCert.GetExtensionValue(X509Extensions.NoRevAvail) != null)
{
return;
}
DateTime currentDate = DateTime.UtcNow;
if (validDate.CompareTo(currentDate) > 0)
{
throw new Exception("Validation time is in future.");
}
// (a)
/*
* We always get timely valid CRLs, so there is no step (a) (1).
* "locally cached" CRLs are assumed to be in getStore(), additional
* CRLs must be enabled in the ExtendedPkixParameters and are in
* getAdditionalStore()
*/
ISet crls = PkixCertPathValidatorUtilities.GetCompleteCrls(dp, attrCert,
currentDate, paramsPKIX);
bool validCrlFound = false;
Exception lastException = null;
IEnumerator crl_iter = crls.GetEnumerator();
while (crl_iter.MoveNext() &&
certStatus.Status == CertStatus.Unrevoked &&
!reasonMask.IsAllReasons)
{
try
{
X509Crl crl = (X509Crl)crl_iter.Current;
// (d)
ReasonsMask interimReasonsMask = Rfc3280CertPathUtilities.ProcessCrlD(crl, dp);
// (e)
/*
* The reasons mask is updated at the end, so only valid CRLs
* can update it. If this CRL does not contain new reasons it
* must be ignored.
*/
if (!interimReasonsMask.HasNewReasons(reasonMask))
{
continue;
}
// (f)
ISet keys = Rfc3280CertPathUtilities.ProcessCrlF(crl, attrCert,
null, null, paramsPKIX, certPathCerts);
// (g)
AsymmetricKeyParameter pubKey = Rfc3280CertPathUtilities.ProcessCrlG(crl, keys);
X509Crl deltaCRL = null;
if (paramsPKIX.IsUseDeltasEnabled)
{
// get delta CRLs
ISet deltaCRLs = PkixCertPathValidatorUtilities.GetDeltaCrls(
currentDate, paramsPKIX, crl);
// we only want one valid delta CRL
// (h)
deltaCRL = Rfc3280CertPathUtilities.ProcessCrlH(deltaCRLs, pubKey);
}
/*
* CRL must be be valid at the current time, not the validation
* time. If a certificate is revoked with reason keyCompromise,
* cACompromise, it can be used for forgery, also for the past.
* This reason may not be contained in older CRLs.
*/
/*
* in the chain model signatures stay valid also after the
* certificate has been expired, so they do not have to be in
* the CRL vality time
*/
if (paramsPKIX.ValidityModel != PkixParameters.ChainValidityModel)
{
/*
* if a certificate has expired, but was revoked, it is not
* more in the CRL, so it would be regarded as valid if the
* first check is not done
*/
if (attrCert.NotAfter.CompareTo(crl.ThisUpdate) < 0)
{
throw new Exception(
"No valid CRL for current time found.");
}
}
Rfc3280CertPathUtilities.ProcessCrlB1(dp, attrCert, crl);
// (b) (2)
Rfc3280CertPathUtilities.ProcessCrlB2(dp, attrCert, crl);
// (c)
Rfc3280CertPathUtilities.ProcessCrlC(deltaCRL, crl, paramsPKIX);
// (i)
Rfc3280CertPathUtilities.ProcessCrlI(validDate, deltaCRL,
attrCert, certStatus, paramsPKIX);
// (j)
Rfc3280CertPathUtilities.ProcessCrlJ(validDate, crl, attrCert,
certStatus);
// (k)
if (certStatus.Status == CrlReason.RemoveFromCrl)
{
certStatus.Status = CertStatus.Unrevoked;
}
// update reasons mask
reasonMask.AddReasons(interimReasonsMask);
validCrlFound = true;
}
catch (Exception e)
{
lastException = e;
}
}
if (!validCrlFound)
{
throw lastException;
}
}
public virtual PkixCertPathValidatorResult Validate(PkixCertPath certPath, PkixParameters paramsPkix)
{
if (paramsPkix.GetTrustAnchors() == null)
{
throw new ArgumentException("trustAnchors is null, this is not allowed for certification path validation.", "parameters");
}
IList certificates = certPath.Certificates;
int count = certificates.Count;
if (certificates.Count == 0)
{
throw new PkixCertPathValidatorException("Certification path is empty.", null, certPath, 0);
}
ISet initialPolicies = paramsPkix.GetInitialPolicies();
TrustAnchor trustAnchor;
try
{
trustAnchor = PkixCertPathValidatorUtilities.FindTrustAnchor((X509Certificate)certificates[certificates.Count - 1], paramsPkix.GetTrustAnchors());
}
catch (Exception ex)
{
throw new PkixCertPathValidatorException(ex.Message, ex, certPath, certificates.Count - 1);
}
if (trustAnchor == null)
{
throw new PkixCertPathValidatorException("Trust anchor for certification path not found.", null, certPath, -1);
}
int i = 0;
IList[] array = new IList[count + 1];
for (int j = 0; j < array.Length; j++)
{
array[j] = Platform.CreateArrayList();
}
ISet set = new HashSet();
set.Add(Rfc3280CertPathUtilities.ANY_POLICY);
PkixPolicyNode pkixPolicyNode = new PkixPolicyNode(Platform.CreateArrayList(), 0, set, null, new HashSet(), Rfc3280CertPathUtilities.ANY_POLICY, false);
array[0].Add(pkixPolicyNode);
PkixNameConstraintValidator nameConstraintValidator = new PkixNameConstraintValidator();
ISet acceptablePolicies = new HashSet();
int num;
if (paramsPkix.IsExplicitPolicyRequired)
{
num = 0;
}
else
{
num = count + 1;
}
int inhibitAnyPolicy;
if (paramsPkix.IsAnyPolicyInhibited)
{
inhibitAnyPolicy = 0;
}
else
{
inhibitAnyPolicy = count + 1;
}
int policyMapping;
if (paramsPkix.IsPolicyMappingInhibited)
{
policyMapping = 0;
}
else
{
policyMapping = count + 1;
}
X509Certificate x509Certificate = trustAnchor.TrustedCert;
X509Name workingIssuerName;
AsymmetricKeyParameter asymmetricKeyParameter;
try
{
if (x509Certificate != null)
{
workingIssuerName = x509Certificate.SubjectDN;
asymmetricKeyParameter = x509Certificate.GetPublicKey();
}
else
{
workingIssuerName = new X509Name(trustAnchor.CAName);
asymmetricKeyParameter = trustAnchor.CAPublicKey;
}
}
catch (ArgumentException cause)
{
throw new PkixCertPathValidatorException("Subject of trust anchor could not be (re)encoded.", cause, certPath, -1);
}
try
{
PkixCertPathValidatorUtilities.GetAlgorithmIdentifier(asymmetricKeyParameter);
}
catch (PkixCertPathValidatorException cause2)
{
throw new PkixCertPathValidatorException("Algorithm identifier of public key of trust anchor could not be read.", cause2, certPath, -1);
}
int maxPathLength = count;
X509CertStoreSelector targetCertConstraints = paramsPkix.GetTargetCertConstraints();
if (targetCertConstraints != null && !targetCertConstraints.Match((X509Certificate)certificates[0]))
{
throw new PkixCertPathValidatorException("Target certificate in certification path does not match targetConstraints.", null, certPath, 0);
}
IList certPathCheckers = paramsPkix.GetCertPathCheckers();
IEnumerator enumerator = certPathCheckers.GetEnumerator();
while (enumerator.MoveNext())
{
((PkixCertPathChecker)enumerator.Current).Init(false);
}
X509Certificate x509Certificate2 = null;
for (i = certificates.Count - 1; i >= 0; i--)
{
int num2 = count - i;
x509Certificate2 = (X509Certificate)certificates[i];
Rfc3280CertPathUtilities.ProcessCertA(certPath, paramsPkix, i, asymmetricKeyParameter, workingIssuerName, x509Certificate);
Rfc3280CertPathUtilities.ProcessCertBC(certPath, i, nameConstraintValidator);
pkixPolicyNode = Rfc3280CertPathUtilities.ProcessCertD(certPath, i, acceptablePolicies, pkixPolicyNode, array, inhibitAnyPolicy);
pkixPolicyNode = Rfc3280CertPathUtilities.ProcessCertE(certPath, i, pkixPolicyNode);
Rfc3280CertPathUtilities.ProcessCertF(certPath, i, pkixPolicyNode, num);
if (num2 != count)
{
if (x509Certificate2 != null && x509Certificate2.Version == 1)
{
throw new PkixCertPathValidatorException("Version 1 certificates can't be used as CA ones.", null, certPath, i);
}
Rfc3280CertPathUtilities.PrepareNextCertA(certPath, i);
pkixPolicyNode = Rfc3280CertPathUtilities.PrepareCertB(certPath, i, array, pkixPolicyNode, policyMapping);
Rfc3280CertPathUtilities.PrepareNextCertG(certPath, i, nameConstraintValidator);
num = Rfc3280CertPathUtilities.PrepareNextCertH1(certPath, i, num);
policyMapping = Rfc3280CertPathUtilities.PrepareNextCertH2(certPath, i, policyMapping);
inhibitAnyPolicy = Rfc3280CertPathUtilities.PrepareNextCertH3(certPath, i, inhibitAnyPolicy);
num = Rfc3280CertPathUtilities.PrepareNextCertI1(certPath, i, num);
policyMapping = Rfc3280CertPathUtilities.PrepareNextCertI2(certPath, i, policyMapping);
inhibitAnyPolicy = Rfc3280CertPathUtilities.PrepareNextCertJ(certPath, i, inhibitAnyPolicy);
Rfc3280CertPathUtilities.PrepareNextCertK(certPath, i);
maxPathLength = Rfc3280CertPathUtilities.PrepareNextCertL(certPath, i, maxPathLength);
maxPathLength = Rfc3280CertPathUtilities.PrepareNextCertM(certPath, i, maxPathLength);
Rfc3280CertPathUtilities.PrepareNextCertN(certPath, i);
ISet set2 = x509Certificate2.GetCriticalExtensionOids();
if (set2 != null)
{
set2 = new HashSet(set2);
set2.Remove(X509Extensions.KeyUsage.Id);
set2.Remove(X509Extensions.CertificatePolicies.Id);
set2.Remove(X509Extensions.PolicyMappings.Id);
set2.Remove(X509Extensions.InhibitAnyPolicy.Id);
set2.Remove(X509Extensions.IssuingDistributionPoint.Id);
set2.Remove(X509Extensions.DeltaCrlIndicator.Id);
set2.Remove(X509Extensions.PolicyConstraints.Id);
set2.Remove(X509Extensions.BasicConstraints.Id);
set2.Remove(X509Extensions.SubjectAlternativeName.Id);
set2.Remove(X509Extensions.NameConstraints.Id);
}
else
{
set2 = new HashSet();
}
Rfc3280CertPathUtilities.PrepareNextCertO(certPath, i, set2, certPathCheckers);
x509Certificate = x509Certificate2;
workingIssuerName = x509Certificate.SubjectDN;
try
{
asymmetricKeyParameter = PkixCertPathValidatorUtilities.GetNextWorkingKey(certPath.Certificates, i);
}
catch (PkixCertPathValidatorException cause3)
{
throw new PkixCertPathValidatorException("Next working key could not be retrieved.", cause3, certPath, i);
}
PkixCertPathValidatorUtilities.GetAlgorithmIdentifier(asymmetricKeyParameter);
}
}
num = Rfc3280CertPathUtilities.WrapupCertA(num, x509Certificate2);
num = Rfc3280CertPathUtilities.WrapupCertB(certPath, i + 1, num);
ISet set3 = x509Certificate2.GetCriticalExtensionOids();
if (set3 != null)
{
set3 = new HashSet(set3);
set3.Remove(X509Extensions.KeyUsage.Id);
set3.Remove(X509Extensions.CertificatePolicies.Id);
set3.Remove(X509Extensions.PolicyMappings.Id);
set3.Remove(X509Extensions.InhibitAnyPolicy.Id);
set3.Remove(X509Extensions.IssuingDistributionPoint.Id);
set3.Remove(X509Extensions.DeltaCrlIndicator.Id);
set3.Remove(X509Extensions.PolicyConstraints.Id);
set3.Remove(X509Extensions.BasicConstraints.Id);
set3.Remove(X509Extensions.SubjectAlternativeName.Id);
set3.Remove(X509Extensions.NameConstraints.Id);
set3.Remove(X509Extensions.CrlDistributionPoints.Id);
}
else
{
set3 = new HashSet();
}
Rfc3280CertPathUtilities.WrapupCertF(certPath, i + 1, certPathCheckers, set3);
PkixPolicyNode pkixPolicyNode2 = Rfc3280CertPathUtilities.WrapupCertG(certPath, paramsPkix, initialPolicies, i + 1, array, pkixPolicyNode, acceptablePolicies);
if (num > 0 || pkixPolicyNode2 != null)
{
return(new PkixCertPathValidatorResult(trustAnchor, pkixPolicyNode2, x509Certificate2.GetPublicKey()));
}
throw new PkixCertPathValidatorException("Path processing failed on policy.", null, certPath, i);
}
public virtual PkixCertPathValidatorResult Validate(PkixCertPath certPath, PkixParameters paramsPkix)
{
//IL_0012: Unknown result type (might be due to invalid IL or missing references)
//IL_0170: Expected O, but got Unknown
if (paramsPkix.GetTrustAnchors() == null)
{
throw new ArgumentException("trustAnchors is null, this is not allowed for certification path validation.", "parameters");
}
global::System.Collections.IList certificates = certPath.Certificates;
int count = ((global::System.Collections.ICollection)certificates).get_Count();
if (((global::System.Collections.ICollection)certificates).get_Count() == 0)
{
throw new PkixCertPathValidatorException("Certification path is empty.", null, certPath, 0);
}
ISet initialPolicies = paramsPkix.GetInitialPolicies();
TrustAnchor trustAnchor;
try
{
trustAnchor = PkixCertPathValidatorUtilities.FindTrustAnchor((X509Certificate)certificates.get_Item(((global::System.Collections.ICollection)certificates).get_Count() - 1), paramsPkix.GetTrustAnchors());
}
catch (global::System.Exception ex)
{
throw new PkixCertPathValidatorException(ex.get_Message(), ex, certPath, ((global::System.Collections.ICollection)certificates).get_Count() - 1);
}
if (trustAnchor == null)
{
throw new PkixCertPathValidatorException("Trust anchor for certification path not found.", null, certPath, -1);
}
int num = 0;
global::System.Collections.IList[] array = new global::System.Collections.IList[count + 1];
for (int i = 0; i < array.Length; i++)
{
array[i] = Platform.CreateArrayList();
}
ISet set = new HashSet();
set.Add(Rfc3280CertPathUtilities.ANY_POLICY);
PkixPolicyNode pkixPolicyNode = new PkixPolicyNode(Platform.CreateArrayList(), 0, set, null, new HashSet(), Rfc3280CertPathUtilities.ANY_POLICY, critical: false);
array[0].Add((object)pkixPolicyNode);
PkixNameConstraintValidator nameConstraintValidator = new PkixNameConstraintValidator();
ISet acceptablePolicies = new HashSet();
int explicitPolicy = ((!paramsPkix.IsExplicitPolicyRequired) ? (count + 1) : 0);
int inhibitAnyPolicy = ((!paramsPkix.IsAnyPolicyInhibited) ? (count + 1) : 0);
int policyMapping = ((!paramsPkix.IsPolicyMappingInhibited) ? (count + 1) : 0);
X509Certificate x509Certificate = trustAnchor.TrustedCert;
X509Name workingIssuerName;
AsymmetricKeyParameter asymmetricKeyParameter;
try
{
if (x509Certificate != null)
{
workingIssuerName = x509Certificate.SubjectDN;
asymmetricKeyParameter = x509Certificate.GetPublicKey();
}
else
{
workingIssuerName = new X509Name(trustAnchor.CAName);
asymmetricKeyParameter = trustAnchor.CAPublicKey;
}
}
catch (ArgumentException val)
{
ArgumentException cause = val;
throw new PkixCertPathValidatorException("Subject of trust anchor could not be (re)encoded.", (global::System.Exception)(object) cause, certPath, -1);
}
try
{
PkixCertPathValidatorUtilities.GetAlgorithmIdentifier(asymmetricKeyParameter);
}
catch (PkixCertPathValidatorException cause2)
{
throw new PkixCertPathValidatorException("Algorithm identifier of public key of trust anchor could not be read.", cause2, certPath, -1);
}
int maxPathLength = count;
X509CertStoreSelector targetCertConstraints = paramsPkix.GetTargetCertConstraints();
if (targetCertConstraints != null && !targetCertConstraints.Match((X509Certificate)certificates.get_Item(0)))
{
throw new PkixCertPathValidatorException("Target certificate in certification path does not match targetConstraints.", null, certPath, 0);
}
global::System.Collections.IList certPathCheckers = paramsPkix.GetCertPathCheckers();
global::System.Collections.IEnumerator enumerator = ((global::System.Collections.IEnumerable)certPathCheckers).GetEnumerator();
while (enumerator.MoveNext())
{
((PkixCertPathChecker)enumerator.get_Current()).Init(forward: false);
}
X509Certificate x509Certificate2 = null;
for (num = ((global::System.Collections.ICollection)certificates).get_Count() - 1; num >= 0; num--)
{
int num2 = count - num;
x509Certificate2 = (X509Certificate)certificates.get_Item(num);
Rfc3280CertPathUtilities.ProcessCertA(certPath, paramsPkix, num, asymmetricKeyParameter, workingIssuerName, x509Certificate);
Rfc3280CertPathUtilities.ProcessCertBC(certPath, num, nameConstraintValidator);
pkixPolicyNode = Rfc3280CertPathUtilities.ProcessCertD(certPath, num, acceptablePolicies, pkixPolicyNode, array, inhibitAnyPolicy);
pkixPolicyNode = Rfc3280CertPathUtilities.ProcessCertE(certPath, num, pkixPolicyNode);
Rfc3280CertPathUtilities.ProcessCertF(certPath, num, pkixPolicyNode, explicitPolicy);
if (num2 != count)
{
if (x509Certificate2 != null && x509Certificate2.Version == 1)
{
throw new PkixCertPathValidatorException("Version 1 certificates can't be used as CA ones.", null, certPath, num);
}
Rfc3280CertPathUtilities.PrepareNextCertA(certPath, num);
pkixPolicyNode = Rfc3280CertPathUtilities.PrepareCertB(certPath, num, array, pkixPolicyNode, policyMapping);
Rfc3280CertPathUtilities.PrepareNextCertG(certPath, num, nameConstraintValidator);
explicitPolicy = Rfc3280CertPathUtilities.PrepareNextCertH1(certPath, num, explicitPolicy);
policyMapping = Rfc3280CertPathUtilities.PrepareNextCertH2(certPath, num, policyMapping);
inhibitAnyPolicy = Rfc3280CertPathUtilities.PrepareNextCertH3(certPath, num, inhibitAnyPolicy);
explicitPolicy = Rfc3280CertPathUtilities.PrepareNextCertI1(certPath, num, explicitPolicy);
policyMapping = Rfc3280CertPathUtilities.PrepareNextCertI2(certPath, num, policyMapping);
inhibitAnyPolicy = Rfc3280CertPathUtilities.PrepareNextCertJ(certPath, num, inhibitAnyPolicy);
Rfc3280CertPathUtilities.PrepareNextCertK(certPath, num);
maxPathLength = Rfc3280CertPathUtilities.PrepareNextCertL(certPath, num, maxPathLength);
maxPathLength = Rfc3280CertPathUtilities.PrepareNextCertM(certPath, num, maxPathLength);
Rfc3280CertPathUtilities.PrepareNextCertN(certPath, num);
ISet criticalExtensionOids = x509Certificate2.GetCriticalExtensionOids();
if (criticalExtensionOids != null)
{
criticalExtensionOids = new HashSet(criticalExtensionOids);
criticalExtensionOids.Remove(X509Extensions.KeyUsage.Id);
criticalExtensionOids.Remove(X509Extensions.CertificatePolicies.Id);
criticalExtensionOids.Remove(X509Extensions.PolicyMappings.Id);
criticalExtensionOids.Remove(X509Extensions.InhibitAnyPolicy.Id);
criticalExtensionOids.Remove(X509Extensions.IssuingDistributionPoint.Id);
criticalExtensionOids.Remove(X509Extensions.DeltaCrlIndicator.Id);
criticalExtensionOids.Remove(X509Extensions.PolicyConstraints.Id);
criticalExtensionOids.Remove(X509Extensions.BasicConstraints.Id);
criticalExtensionOids.Remove(X509Extensions.SubjectAlternativeName.Id);
criticalExtensionOids.Remove(X509Extensions.NameConstraints.Id);
}
else
{
criticalExtensionOids = new HashSet();
}
Rfc3280CertPathUtilities.PrepareNextCertO(certPath, num, criticalExtensionOids, certPathCheckers);
x509Certificate = x509Certificate2;
workingIssuerName = x509Certificate.SubjectDN;
try
{
asymmetricKeyParameter = PkixCertPathValidatorUtilities.GetNextWorkingKey(certPath.Certificates, num);
}
catch (PkixCertPathValidatorException cause3)
{
throw new PkixCertPathValidatorException("Next working key could not be retrieved.", cause3, certPath, num);
}
PkixCertPathValidatorUtilities.GetAlgorithmIdentifier(asymmetricKeyParameter);
}
}
explicitPolicy = Rfc3280CertPathUtilities.WrapupCertA(explicitPolicy, x509Certificate2);
explicitPolicy = Rfc3280CertPathUtilities.WrapupCertB(certPath, num + 1, explicitPolicy);
ISet criticalExtensionOids2 = x509Certificate2.GetCriticalExtensionOids();
if (criticalExtensionOids2 != null)
{
criticalExtensionOids2 = new HashSet(criticalExtensionOids2);
criticalExtensionOids2.Remove(X509Extensions.KeyUsage.Id);
criticalExtensionOids2.Remove(X509Extensions.CertificatePolicies.Id);
criticalExtensionOids2.Remove(X509Extensions.PolicyMappings.Id);
criticalExtensionOids2.Remove(X509Extensions.InhibitAnyPolicy.Id);
criticalExtensionOids2.Remove(X509Extensions.IssuingDistributionPoint.Id);
criticalExtensionOids2.Remove(X509Extensions.DeltaCrlIndicator.Id);
criticalExtensionOids2.Remove(X509Extensions.PolicyConstraints.Id);
criticalExtensionOids2.Remove(X509Extensions.BasicConstraints.Id);
criticalExtensionOids2.Remove(X509Extensions.SubjectAlternativeName.Id);
criticalExtensionOids2.Remove(X509Extensions.NameConstraints.Id);
criticalExtensionOids2.Remove(X509Extensions.CrlDistributionPoints.Id);
}
else
{
criticalExtensionOids2 = new HashSet();
}
Rfc3280CertPathUtilities.WrapupCertF(certPath, num + 1, certPathCheckers, criticalExtensionOids2);
PkixPolicyNode pkixPolicyNode2 = Rfc3280CertPathUtilities.WrapupCertG(certPath, paramsPkix, initialPolicies, num + 1, array, pkixPolicyNode, acceptablePolicies);
if (explicitPolicy > 0 || pkixPolicyNode2 != null)
{
return(new PkixCertPathValidatorResult(trustAnchor, pkixPolicyNode2, x509Certificate2.GetPublicKey()));
}
throw new PkixCertPathValidatorException("Path processing failed on policy.", null, certPath, num);
}
