Authentication scheme with self-certified public-key in 3G communication based on elliptic curve cryptosystem;

In this paper, an efficient self-certified public-key based authentication scheme including PKBP (Public-Key Broadcast Protocol) and SPAKA (Self-certified Public-key based Authentication and Key Agreement Protocol) is presented for 3G systems.

Centering on the state new standard of cotton,this paper emphasizes the understanding of the revised standard and its implementation,mainly discusses the sections of Micronaire value and metric inspection,analyzes the active effect of the new standard and advances the significance of putting the new standard into practice.

After giving a brief introduction on the view about personal language which is based on inherent feelings from western philosophy, this article concludes that Wittgenstein dissertates the impossibility of personal language from internal and external aspects which have assumptions on obeying the rules and public tests.