  We present in this paper a study on the ability and the benefits of using a
keystroke dynamics authentication method for collaborative systems.
Authentication is a challenging issue in order to guarantee the security of use
of collaborative systems during the access control step. Many solutions exist
in the state of the art such as the use of one time passwords or smart-cards.
We focus in this paper on biometric based solutions that do not necessitate any
additional sensor. Keystroke dynamics is an interesting solution as it uses
only the keyboard and is invisible for users. Many methods have been published
in this field. We make a comparative study of many of them considering the
operational constraints of use for collaborative systems.
