Cookie name encryption

Question

Hi friends

 

I am working enterprice application , application size is very big we are not ready to any chages on code level .

 

problem statemet is :- in asp.net is there any way to set cookie key name in encrypted format.

 

like instead of username , cookie key should be username_sdbdnfdnf 

 

required answer in configuration or server settings level not code level.