The existing direction of resolving conflict only required us to fulfill by choosing an appropriate one among the conflict legal obligations which might stop the subject from taking the responsible because of the failure to carry out another legal obligation.

This paper discusses the notions and legal characteristics of e-authentication and e-signature, and studies the authentication organizations and the relevant legal proceedings, legal conditions, legal obligations and legal responsibilities.

Through analysis of the differences and association on morals and medical morals,medical morals and law,legal duty and medical morals duty,the author further discusses the features of medical morals and roles of legal provision of medical morals role for medical staffs.

It indi visibly relates to the production, distribution and function of legal duty.

In the field of law, much attention has been paid to the study of legal right while the topic on legal duty remains unnoticed.

From the aspect of legal obligation, the article attempts to construct a system defining the legal obligation of managers, putting forward some relative stipulations and regulations, aiming at offering some effective measures to curb the usurp from managers to the interest of stockholder, recommending some legislation enforcement.

This article introduces the concept and juristic characteristics of the electronic authentication (Certificate Authority) and electronic signature, and discusses such topics as legal form, establishment and legal obligation of the electronic authentic office.