Importance

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Abstract

A secure client/server system allows remote access to a database system without allowing unauthorized users to access data stored within the database system. A server encrypts and transmits a new encryption key to a remote client for each data session established between the server and client. Thereafter, the server and client encrypt the data communicated in the data session with the new encryption key transmitted to the client. The client then transmits a log name and a password to the server. The server verifies that the user of the client is an authorized user and translates the password into an alias password. The server receives a request for data from the client and utilizes the alias password to retrieve data associated with the request for data from a database at the premises of the server. If the request for data is associated with any data located in a remote database system, the server submits a request for data to the appropriate database system. After retrieving all of the requested data, the server encrypts the retrieved data with the new encryption key and transmits the retrieved data to the client.

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First Claim