CSCI 4541 Lecture Notes - Lecture 8: Email, Security Association, Ipsec
11 Apr 2017
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Document Summary
04/03/2017 - chapter 20 (cont"d) & chapter 19: electronic mail security. ** table 20. 1 dictates tunnel mode and transport mode functionality ** Size (these top 3 are necessary for differentiation) ** figure 20. 2 displays the ipsec architecture ** Security policy database that says when you see traffic that associates. A one-way logical connection between a sender and a receiver that affords security services to the traffic carried on it. In any ip packet, the sa is uniquely identified by the destination address in the. Ipv4 or ipv6 header and the spi in the enclosed extension header (ah or esp) A 32-bit unsigned integer assigned to this sa and having logical significance only. Indicates whether the association is an ah or esp security association. Address of the destination endpoint of the sa, which may be an end-user system or a network system such as a firewall or router. Defines the parameters associated with each sa.
