GFI Forums: Kerio Control » Why Kerio Control IPSEC uses the AES-CBC mode?

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Sun, 11 May 2014 23:45

maa1
Messages: 90
Registered: April 2005

http://kb.kerio.com/product/kerio-control/vpn/configuring-ip sec-vpn-tunnel-kerio-control-and-another%09device-1390.html

Why Kerio Control IPSEC uses the AES-CBC mode, rather than AES-GCM mode?
http://en.wikipedia.org/wiki/GCM_mode
GCM can take full advantage of parallel processing, and an implementation can make efficient use of an instruction pipeline or a hardware pipeline. In contrast, the CBC mode of operation incurs significant pipeline stalls that hamper its efficiency and performance.

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