A key-establishment protocol, used to secure
VPN communications. If one
encryption key is compromised only data encrypted by that specific key is
compromised. For perfect forward secrecy (PFS) to
exist the key used to protect transmission of data must
not be used to derive any additional keys.
The Internet Key Exchange - RFC2409 This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements.
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