Enterprise Library Test Guide - Willy .Net

Testing the Security Application Block 109
Code test case Implemented? Feature that is implemented
Verify that
the security
cache provider
encrypts the
data stored in
the cache.
Yes
The CachingStoreProvider class derives from the SecurityCacheProvider
class. This class uses a CacheManager
instance to add, remove, and retrieve an identity from the
cache. In the following example, the CacheManager instance
adds the identity to the caching store. The Caching Application
Block’s database cache encrypts the data stored in the cache.
public class CachingStoreProvider : Security-
CacheProvider
{
private CacheManager securityCacheManager;
public override void SaveIdentity(IIdentity identity,
IToken token)
{
GetSecurityCacheItem(token, true).Identity = identity;
}
private SecurityCacheItem GetSecurityCacheItem(ITok
en token, bool createIfNull)
{
…
securityCacheManager.Add(token.Value, item, CacheItemPriority.Normal,
null, GetCacheExpirations());
…
}
}
The following code demonstrates how the DatabaseBacking-
Store object encrypts the data before adding it to the database.
public class DatabaseBackingStore : BaseBacking-
Store
{
protected override void AddNewItem(int storageKey,
CacheItem newItem)
{
…
this.encryptionProvider.Encrypt(valueBytes);
…
}
}
Similarly, the Caching Application Block’s IsolatedStorage-
CacheProvider class also encrypts the data stored in the
cache.
continued