The certificate verification in SSL/TLS implementations is vital and may become the weak link in the whole network ecosystem. The Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols are the foundation of network security. The implementation of a PKI infrastructure in the health sector allows institutions to exchange medical records through a network with a high level of security. As a result, a trust scheme was obtained that promotes the secure exchange of patients' medical records between health institutions. In order to achieve this, a documentary analysis was carried out on the current state of the art in the subject as well as interviews with administrative staff, hospital managers and specialists in computer security, which allowed the research bases to be created. The aim of our work was to design a security structure centered on PKI among health institutions, based on the national public key infrastructure as root certificate authority (CA). In Cuba, there is no centralized PKI (Public Key Infrastructure) scheme at the national level that promotes and guarantees the security of sensitive information in the public health system, which puts the authenticity, integrity and confidentiality of personal medical data at risk. The IT systems used in the health sector have much easier and more sustainable digital storage and guarantee the privacy and integrity of information, which are sensitive issues. Computer security has become a necessity and a right for all citizens.
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