úÎE‡<Automatic encrypting and decrypting of client session data. CUsing the clientsession package, this middleware handles automatic G encryption, decryption, checking, expiration and renewal of whichever E cookies you ask it to. For example, if you tell it to deal with the  cookie " IDENTIFIER", it will do the following:  When you specify an " IDENTIFIER" value in your  , it will C encrypt the value, along with the session expiration date and the I REMOTE_HOST of the user. It will then be set as a cookie on the client.  When there is an incoming " IDENTIFIER" cookie from the user, it will G decrypt it and check both the expiration date and the REMOTE_HOST. If ( everything matches up, it will set the " IDENTIFIER" value in   .  If the client sent an " IDENTIFIER"" and the application does not set H a new value, this will reset the cookie to a new expiration date. This < way, you do not have sessions timing out every 20 minutes. GAs far as security: clientsesion itself handles hashing and encrypting I the data to make sure that the user can neither see not tamper with it. list of cookies to intercept encryption key expiration time formatted expiration time  remote host key  current time remote host field  cookie pair       #hack-middleware-clientsession-0.0.1Hack.Middleware.ClientSession Crypto-4.2.0Data.LargeWordWord256clientsession-0.0.1Web.ClientSessiongetKey getDefaultKeydefaultKeyFile clientsessionCookiehack-2009.10.30HackResponse hackHeaders takeJusts setCookie decodeCookiemread