Authentication and electronic signing method esp for telecommunication system

摘要

The method uses a signing or signature process and a verification process, running in the secure surroundings of two modules. One module is for the subscriber A and the other for subscriber B, and takes the form of a processing chip or I.C. card. However it is not a personalised module. Alternatively the signature and verification processes are provided in a personalised security module (SM-A,SM-B) given to each subscriber.