ERP5 has been designed to be as much cookie technology independent as possible.
In addition, cookies have many hidden limitations. For example, big size cookies are
sometimes "scrambled" by Apache or Squid front ends. This means that a system
based on the exchange of big size cookies can not be reliable (rfc2109 specifies
a limit of 4096 bytes for a cookie). The right solution is, sadly, to use
standard forms to exchange data. This may involve using encrypted binhexed
or uuencoded data in hidden form fields.