| (I) access control usage: A synonym for "capability" or "ticket"
in an access control system.
(I) IPsec usage: Data exchanged by ISAKMP to prevent certain
denial-of-service attacks during the establishment of a security
association.
(I) HTTP usage: Data exchanged between an HTTP server and a
browser (a client of the server) to store state information on the
client side and retrieve it later for server use.
(C) An HTTP server, when sending data to a client, may send along
a cookie, which the client retains after the HTTP connection
closes. A server can use this mechanism to maintain persistent
client-side state information for HTTP-based applications,
retrieving the state information in later connections. A cookie
may include a description of the range of URLs for which the state
is valid. Future requests made by the client in that range will
also send the current value of the cookie to the server. Cookies
can be used to generate profiles of web usage habits, and thus may
infringe on personal privacy.
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