SYSTEM FOR SECURE DATA EXCHANGE IN A COMPUTER NETWORK MANAGING TRANSFER OF GOODS AND FINANCIAL COUNTERFLOWS BETWEEN SEPARATE COMPUTERIZED SITES

摘要

The invention concerns a system for secure data exchange in a computer network managing transfer of goods and financial counterflows between producer computerized sites offering goods and distributor sites proposing them, the goods and counterflows being physically represented by computerized data, the data being stored in at least one centralizing server, said data in the form of pages capable of being searched, retrieved, processed for further action or not, validated by a site browser, the site further including a computerized means for connection to the server. The invention is characterized in that the site computerized means enable, firstly, upon connection, a first site identification with the server for a session and in response a second identification of the server with the site, secondly, verification and creation of a certificate in the server based on user identification, the certificate based on user identification being valid only while the session lasts and being transmitted to the computerized site and at least one page of the server includes a security identifier and when the site browser validates a page comprising the security identifier, the computerized site transmits the certificate to the server with the processed page, the server only accepting said action if the received certificate corresponds to the one created by it.