Method and apparatus for access control and/or identification

Details Method and apparatus for access control and/or identification Method and apparatus for access control and/or identification

G - Physics

07

F

G07F 7/10 (2006.01) H04L 9/32 (2006.01)

Patent

CA 2100576

2100576 9213321 PCTABS00014 The present invention relates to a method and to an apparatus for access control and identification which requires no public key directory. For many applications, e.g. smart cards for pay TV purposes, credit cards, passports, dongles or other kind of electronic keys, unforgeable systems for access control or digital signature are required. Such access control and systems may include public keys. But in many of such public key systems the key management becomes very complicated when the number of users increases. The invention uses the fact that it is difficult to compute square roots mod n when factoring of n is unknown. The invention is based on the identity: x2 r(x+x-1) 2 = r2 1+x2 2 mod n which is computed and compared using a user unit and a verifier unit. The public key directory is replaced by a unique transmission between a sender and a receiver R of a 'seed' which will give after a proper processing both the identity information for R and public keys.

Affiliated with

Also associated with

Rating

Method and apparatus for access control and/or identification does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for access control and/or identification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for access control and/or identification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1500236