Security Association

from Wikipedia, the free encyclopedia

A Security Association ( SA , dt. Safety connection ) is an agreement between two communicating entities in computer networks . It describes how the two parties use security services in order to be able to communicate securely with one another.

The safety connection is a simplex connection . So it always only transmits exactly one security service. When using several services, several security connections must be established. The security services can be authentication (by AH ) or encryption (by ESP ).

Describes a SA by a security parameter index (dt. Security Parameters Index ), the IP target address and a security protocol identifier that identifies the transmission method to be used (AH, ESP).

See also

literature

  • RFC 2408 - Internet Security Association and Key Management Protocol (ISAKMP)