A method and apparatus for enhancing the security of password security systems.
The authorization decision related to passwords is based not only on entry of the
correct characters in the correct sequence but also on the keystroke sequence timing
associated with the typing habits of an authorized user. The keystroke sequence
timing provides an additional security measure to each password similar to signature
or fingerprint systems. Particularly, each person has a unique typing style and
this uniqueness is captured in the present invention as keystroke sequence timing
and used as an additional recognition means.