Crypto-Sign® is a patent-pending
remote authentication technology based upon the submission of a
secret sign. PDA-Protect is a Crypto-Sign based product and has
been developed for Pocket PC 2002 device access control. It is used
to control the release of the password to enable the device at power-up
or whenever a password is required. This means that the Password
will not have to be remembered or entered each time it is used and
a record of it may be stored in a secure location for access, if
needed, to set up an ActiveSync partnership at your workstation.
Different Crypto-Sign software can be used to generate/release a
key for encryption purposes or to attach an electronic signature
to an electronic document.
PDA-Protect uses pen-based input from
the PDA digitizer to record a secret sign, submitted with the inking
turned off, in an area of the screen delineated by a rectangular
box. The secret sign is then compared with a previously established
reference template to establish authenticity.
PDA-Protect® README (PDF)
>> Download Installation
Guide Power Point Presentation
PDA-Protect® has been through beta
with Microsoft® who have this to say:-
"TSI has a really excellent new authentication
mechanism for the PPC that uses handwriting recognition."
"Security features like this are important
for enterprise customers who are deploying these devices in high