The solution is as follows: 1. The first step is to upgrade your line assistant software. You need to uninstall the original version before upgrading.
2. Then, open the control panel, add or delete programs, and uninstall all the software with "Line" and "Jiangsu Ca".
3. Then, you need to restart the computer after uninstalling.
4. Then, after restarting the computer, close all anti-virus software on the computer.
5. Then download the latest version of Line Assistant. Install the Line Assistant at this time.
6. Then, after the installation is completed, open the software home page and click Online Extension.
7. Finally, enter the password. After the expansion is successful, you need to unplug the certificate and plug in the computer again before you can continue to apply for it.
CA digital certificate is a certificate issued by CA organization (commonly known as CA certificate or SSL certificate), which mainly includes public key, owner's name of public key, CA digital signature, validity period and other information, and can be used to identify the identity of individuals or enterprises in the network. Electronic signature is the combination of digital certificate and signed picture. In a word, the key technology of electronic signature is digital certificate. Electronic signature is a part of electronic signature, which not only retains the visual effect of the physical seal (that is, the appearance of the seal), but also contains a digital certificate to ensure that the electronic contract after using the electronic seal has recognizable features, signature identity and tamper-proof content.
1. Electronic signature system consists of public security PKI/CA system, electronic seal management system, electronic signature authentication system and client electronic signature software. Digital certificate authentication system directly adopts PKI/CA system built by public security.
2. The electronic stamp management system is similar to the electronic stamp system. It is mainly used to complete the application, approval and production of electronic seals, as well as the management of issuance, authorization/re-authorization, loss reporting/reimbursement and destruction of electronic seals, as well as the maintenance and management of seals. Electronic seal photo gallery. At the same time, it provides the audit management function of the use of electronic seals-when and where the electronic seals are stamped in detail by the signer.
3. The electronic seal management subsystem adopts the three-dimensional authority management mode of "user role authority", which can assign different roles to different people, and then assign different usage rights. In this way, the authority of platform management, seal application, seal making, seal management and seal use can be assigned to different people, thus strengthening the process and authority of seal safety management, so that authenticity can also ensure the reliability of seal source from the perspective of seal management. You can customize roles according to your own needs to meet different management needs.
4. Various architectures and languages can be used to develop the electronic seal management subsystem. The mainstream languages Java and C++ must support remote seal management, centralized deployment and hierarchical management. Because the traditional entity seal adopts hierarchical management mode, the electronic seal generally adopts hierarchical management mode, that is, independent legal persons at all levels can independently manage their own internal electronic seals, and then define the seal managers of various departments.
5. Electronic seal management subsystem fully embodies the management idea of electronic seal, establishes the management idea of electronic seal corresponding to traditional physical seal, and realizes the whole life cycle management, loss reporting, destruction and use audit of electronic seal from application, approval, production and use authorization.