how to use Security Caching and how to manage token in it

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C#3.0

C#

I am using Enterprise Library 5.0 I have configured web config to use security caching.

My code block is given below.

if (((CustomIdentity)Context.User.Identity).IsAuthenticated)
{
  ISecurityCacheProvider cacheProvider = EnterpriseLibraryContainer.Current.GetInstance<ISecurityCacheProvider>();
  token = cacheProvider.SaveIdentity(((CustomIdentity)Context.User.Identity));
  CustomPrincipal principle = (CustomPrincipal)Thread.CurrentPrincipal;
  cacheProvider.SavePrincipal(principle, token);
}

Please tell me where to store token variable so that I can use it to get values whenever I required through the application.

I am using it by.

ISecurityCacheProvider cacheProvider = EnterpriseLibraryContainer.Current.GetInstance<ISecurityCacheProvider>();
CustomIdentity identity = (CustomIdentity)cacheProvider.GetIdentity(token);

Please tell me where to store token.

Pravin