internal static PkixPolicyNode WrapupCertG(
PkixCertPath certPath,
PkixParameters paramsPKIX,
ISet userInitialPolicySet,
int index,
IList[] policyNodes,
PkixPolicyNode validPolicyTree,
ISet acceptablePolicies)
{
int n = certPath.Certificates.Count;
//
// (g)
//
PkixPolicyNode intersection;
//
// (g) (i)
//
if (validPolicyTree == null)
{
if (paramsPKIX.IsExplicitPolicyRequired)
{
throw new PkixCertPathValidatorException(
"Explicit policy requested but none available.", null, certPath, index);
}
intersection = null;
}
else if (PkixCertPathValidatorUtilities.IsAnyPolicy(userInitialPolicySet)) // (g)
// (ii)
{
if (paramsPKIX.IsExplicitPolicyRequired)
{
if (acceptablePolicies.IsEmpty)
{
throw new PkixCertPathValidatorException(
"Explicit policy requested but none available.", null, certPath, index);
}
else
{
ISet _validPolicyNodeSet = new HashSet();
for (int j = 0; j < policyNodes.Length; j++)
{
IList _nodeDepth = policyNodes[j];
for (int k = 0; k < _nodeDepth.Count; k++)
{
PkixPolicyNode _node = (PkixPolicyNode)_nodeDepth[k];
if (Rfc3280CertPathUtilities.ANY_POLICY.Equals(_node.ValidPolicy))
{
foreach (object o in _node.Children)
{
_validPolicyNodeSet.Add(o);
}
}
}
}
foreach (PkixPolicyNode _node in _validPolicyNodeSet)
{
string _validPolicy = _node.ValidPolicy;
if (!acceptablePolicies.Contains(_validPolicy))
{
// TODO?
// validPolicyTree =
// removePolicyNode(validPolicyTree, policyNodes,
// _node);
}
}
if (validPolicyTree != null)
{
for (int j = (n - 1); j >= 0; j--)
{
IList nodes = policyNodes[j];
for (int k = 0; k < nodes.Count; k++)
{
PkixPolicyNode node = (PkixPolicyNode)nodes[k];
if (!node.HasChildren)
{
validPolicyTree = PkixCertPathValidatorUtilities.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
//
ISet _validPolicyNodeSet = new HashSet();
for (int j = 0; j < policyNodes.Length; j++)
{
IList _nodeDepth = policyNodes[j];
for (int k = 0; k < _nodeDepth.Count; k++)
{
PkixPolicyNode _node = (PkixPolicyNode)_nodeDepth[k];
if (Rfc3280CertPathUtilities.ANY_POLICY.Equals(_node.ValidPolicy))
{
foreach (PkixPolicyNode _c_node in _node.Children)
{
if (!Rfc3280CertPathUtilities.ANY_POLICY.Equals(_c_node.ValidPolicy))
{
_validPolicyNodeSet.Add(_c_node);
}
}
}
}
}
//
// (g) (iii) 2
//
IEnumerator _vpnsIter = _validPolicyNodeSet.GetEnumerator();
while (_vpnsIter.MoveNext())
{
PkixPolicyNode _node = (PkixPolicyNode)_vpnsIter.Current;
string _validPolicy = _node.ValidPolicy;
if (!userInitialPolicySet.Contains(_validPolicy))
{
validPolicyTree = PkixCertPathValidatorUtilities.RemovePolicyNode(validPolicyTree, policyNodes, _node);
}
}
//
// (g) (iii) 4
//
if (validPolicyTree != null)
{
for (int j = (n - 1); j >= 0; j--)
{
IList nodes = policyNodes[j];
for (int k = 0; k < nodes.Count; k++)
{
PkixPolicyNode node = (PkixPolicyNode)nodes[k];
if (!node.HasChildren)
{
validPolicyTree = PkixCertPathValidatorUtilities.RemovePolicyNode(validPolicyTree, policyNodes,
node);
}
}
}
}
intersection = validPolicyTree;
}
return intersection;
}
internal static PkixPolicyNode PrepareCertB(
PkixCertPath certPath,
int index,
IList[] policyNodes,
PkixPolicyNode validPolicyTree,
int policyMapping)
//throws CertPathValidatorException
{
IList certs = certPath.Certificates;
X509Certificate cert = (X509Certificate)certs[index];
int n = certs.Count;
// i as defined in the algorithm description
int i = n - index;
// (b)
//
Asn1Sequence pm = null;
try
{
pm = (Asn1Sequence)Asn1Sequence.GetInstance(PkixCertPathValidatorUtilities.GetExtensionValue(cert, X509Extensions.PolicyMappings));
}
catch (Exception ex)
{
throw new PkixCertPathValidatorException(
"Policy mappings extension could not be decoded.", ex, certPath, index);
}
PkixPolicyNode _validPolicyTree = validPolicyTree;
if (pm != null)
{
Asn1Sequence mappings = (Asn1Sequence)pm;
IDictionary m_idp = Platform.CreateHashtable();
ISet s_idp = new HashSet();
for (int j = 0; j < mappings.Count; j++)
{
Asn1Sequence mapping = (Asn1Sequence) mappings[j];
string id_p = ((DerObjectIdentifier) mapping[0]).Id;
string sd_p = ((DerObjectIdentifier) mapping[1]).Id;
ISet tmp;
if (!m_idp.Contains(id_p))
{
tmp = new HashSet();
tmp.Add(sd_p);
m_idp[id_p] = tmp;
s_idp.Add(id_p);
}
else
{
tmp = (ISet)m_idp[id_p];
tmp.Add(sd_p);
}
}
IEnumerator it_idp = s_idp.GetEnumerator();
while (it_idp.MoveNext())
{
string id_p = (string)it_idp.Current;
//
// (1)
//
if (policyMapping > 0)
{
bool idp_found = false;
IEnumerator nodes_i = policyNodes[i].GetEnumerator();
while (nodes_i.MoveNext())
{
PkixPolicyNode node = (PkixPolicyNode)nodes_i.Current;
if (node.ValidPolicy.Equals(id_p))
{
idp_found = true;
node.ExpectedPolicies = (ISet)m_idp[id_p];
break;
}
}
if (!idp_found)
{
nodes_i = policyNodes[i].GetEnumerator();
while (nodes_i.MoveNext())
{
PkixPolicyNode node = (PkixPolicyNode)nodes_i.Current;
if (Rfc3280CertPathUtilities.ANY_POLICY.Equals(node.ValidPolicy))
{
ISet pq = null;
Asn1Sequence policies = null;
try
{
policies = (Asn1Sequence)PkixCertPathValidatorUtilities.GetExtensionValue(cert,
X509Extensions.CertificatePolicies);
}
catch (Exception e)
{
throw new PkixCertPathValidatorException(
"Certificate policies extension could not be decoded.", e, certPath, index);
}
foreach (Asn1Encodable ae in policies)
{
PolicyInformation pinfo = null;
try
{
pinfo = PolicyInformation.GetInstance(ae.ToAsn1Object());
}
catch (Exception ex)
{
throw new PkixCertPathValidatorException(
"Policy information could not be decoded.", ex, certPath, index);
}
if (Rfc3280CertPathUtilities.ANY_POLICY.Equals(pinfo.PolicyIdentifier.Id))
{
try
{
pq = PkixCertPathValidatorUtilities
.GetQualifierSet(pinfo.PolicyQualifiers);
}
catch (PkixCertPathValidatorException ex)
{
throw new PkixCertPathValidatorException(
"Policy qualifier info set could not be decoded.", ex, certPath,
index);
}
break;
}
}
bool ci = false;
ISet critExtOids = cert.GetCriticalExtensionOids();
if (critExtOids != null)
{
ci = critExtOids.Contains(X509Extensions.CertificatePolicies.Id);
}
PkixPolicyNode p_node = (PkixPolicyNode)node.Parent;
if (Rfc3280CertPathUtilities.ANY_POLICY.Equals(p_node.ValidPolicy))
{
PkixPolicyNode c_node = new PkixPolicyNode(Platform.CreateArrayList(), i,
(ISet)m_idp[id_p], p_node, pq, id_p, ci);
p_node.AddChild(c_node);
policyNodes[i].Add(c_node);
}
break;
}
}
}
//
// (2)
//
}
else if (policyMapping <= 0)
{
foreach (PkixPolicyNode node in Platform.CreateArrayList(policyNodes[i]))
{
if (node.ValidPolicy.Equals(id_p))
{
node.Parent.RemoveChild(node);
for (int k = i - 1; k >= 0; k--)
{
foreach (PkixPolicyNode node2 in Platform.CreateArrayList(policyNodes[k]))
{
if (!node2.HasChildren)
{
_validPolicyTree = PkixCertPathValidatorUtilities.RemovePolicyNode(
_validPolicyTree, policyNodes, node2);
if (_validPolicyTree == null)
break;
}
}
}
}
}
}
}
}
return _validPolicyTree;
}
