internal static CRYPT_OID_INFO[] EnumerateOidInformation(OidGroup group)
{
// This list is passed through to the callbacks as a GCHandle, so if the type of this object is
// changed, the type expected in OidEnumerationCallback must also be changed.
List<CRYPT_OID_INFO> oidInformation = new List<CRYPT_OID_INFO>();
GCHandle oidInformationHandle = new GCHandle();
RuntimeHelpers.PrepareConstrainedRegions();
try
{
// Get a handle to the OID information list so that we can pass it into the callback function
oidInformationHandle = GCHandle.Alloc(oidInformation, GCHandleType.Normal);
if (!UseWin2k3OidStructures)
{
CryptEnumOidInfoCallback callback = new CryptEnumOidInfoCallback(OidEnumerationCallback);
UnsafeNativeMethods.CryptEnumOIDInfo(group,
0,
GCHandle.ToIntPtr(oidInformationHandle),
callback);
// Make sure we don't GC the callback delegate before we're done enumerating
GC.KeepAlive(callback);
}
else
{
CryptEnumOidInfoCallbackWin2k3 callback = new CryptEnumOidInfoCallbackWin2k3(OidEnumerationCallbackWin2k3);
UnsafeNativeMethods.CryptEnumOIDInfoWin2k3(group,
0,
GCHandle.ToIntPtr(oidInformationHandle),
callback);
// Make sure we don't GC the callback delegate before we're done enumerating
GC.KeepAlive(callback);
}
}
finally
{
if (oidInformationHandle.IsAllocated)
{
oidInformationHandle.Free();
}
}
return oidInformation.ToArray();
}
internal static extern bool CryptEnumOIDInfoWin2k3(OidGroup dwGroupId,
int dwFlags,
IntPtr pvArg,
CryptEnumOidInfoCallbackWin2k3 pfnEnumOIDInfo);
internal static extern bool CryptEnumOIDInfoWin2k3(OidGroup dwGroupId,
int dwFlags,
IntPtr pvArg,
CryptEnumOidInfoCallbackWin2k3 pfnEnumOIDInfo);
internal static CRYPT_OID_INFO[] EnumerateOidInformation(OidGroup group)
{
// This list is passed through to the callbacks as a GCHandle, so if the type of this object is
// changed, the type expected in OidEnumerationCallback must also be changed.
List<CRYPT_OID_INFO> oidInformation = new List<CRYPT_OID_INFO>();
GCHandle oidInformationHandle = new GCHandle();
RuntimeHelpers.PrepareConstrainedRegions();
try
{
// Get a handle to the OID information list so that we can pass it into the callback function
oidInformationHandle = GCHandle.Alloc(oidInformation, GCHandleType.Normal);
if (!UseWin2k3OidStructures)
{
CryptEnumOidInfoCallback callback = new CryptEnumOidInfoCallback(OidEnumerationCallback);
UnsafeNativeMethods.CryptEnumOIDInfo(group,
0,
GCHandle.ToIntPtr(oidInformationHandle),
callback);
// Make sure we don't GC the callback delegate before we're done enumerating
GC.KeepAlive(callback);
}
else
{
CryptEnumOidInfoCallbackWin2k3 callback = new CryptEnumOidInfoCallbackWin2k3(OidEnumerationCallbackWin2k3);
UnsafeNativeMethods.CryptEnumOIDInfoWin2k3(group,
0,
GCHandle.ToIntPtr(oidInformationHandle),
callback);
// Make sure we don't GC the callback delegate before we're done enumerating
GC.KeepAlive(callback);
}
}
finally
{
if (oidInformationHandle.IsAllocated)
{
oidInformationHandle.Free();
}
}
return oidInformation.ToArray();
}