certificateless public key cryptography (cl-pkc) is a useful method in order to solve the problems of traditional public key infrastructure (i. e. large amount of computation, storage and communication cost for managing certificates) and id-based public key cryptography (i. e. key escrow problem), simultaneously. a signcryption scheme is an important primitive in cryptographic protocols which p...

Abstract We review the present status of Standard Model in High Energy Physics, its great successes as well questions which are left unanswered. briefly indicate some theoretical ideas and crucial experiments may show way to obtain a theory Beyond Model.