1, the concept of digital certificate

Digital certificates are issued by an authoritative and impartial third party organization, namely CA Center. The encryption technology with digital certificate as the core can encrypt and decrypt the information transmitted on the network, digitally sign and verify the signature, thus ensuring the confidentiality and integrity of the information transmitted on the network, the authenticity of the identity of the transaction subject and the undeniable signature information, thus ensuring the security of network applications.

2. The concept of CA

CA is a digital or electronic certificate certification center, a third-party authority responsible for the issuance and management of digital certificates, and provides a platform for digital identity verification and security for e-commerce or e-government systems. Through the digital certificate and security support platform provided by the third-party certification body, the application system has credibility and legitimacy. This is the meaning of CA certification.

3.3 Functions provided. certificate authority

CA authentication mainly provides the following functions for the application system: identity authentication, digital signature, data encryption and decryption, time stamp and so on.

The main problems to be solved are as follows:

1) fully introduce digital certificates issued by legal third-party electronic authentication services, build a hospital digital certificate acceptance point system, and issue digital certificates to hospital medical staff;

2) through the digital signature verification service system, the authenticity and reliability of the user identity of the electronic medical record system can be effectively solved, and the reliable digital signature of key business data can be realized;

3) Through the electronic signature system, the digital signature and visual display of the digital signature of the electronic medical record data message are realized, which effectively solves the problems of data security and responsibility attribution of the medical data message of the electronic medical record system;

4) Deploy authoritative and credible time source equipment in the hospital, and realize time stamp authentication of medical data messages based on time stamp service system to ensure the legality and validity of electronic data.