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CSS 40/128 bit SSL recognition

dobner
Level 1
Level 1

Is it possible for a CSS (11501 SSL) to detect the browser version of an incoming client to see if he is able to do 128 bit SSL or only 40 bit SSL? Is that in the HTTP header, if so, where / which string / ...?

Thanks for any helpful comment,

Uli

1 Reply 1

Gilles Dufour
Cisco Employee
Cisco Employee

the CSS in general can detect the browser type with the command 'header-field-group' and the 'header-field user-agent ...'

Otherwise, when you define your ssl-server, you need to specify the cipher mode accepted by the module.

You can list 40 bits cypher modes and 128 bits cipher modes.

The SSL protocol will negotiate the best one.

Gilles