Fragmented Data Processing: An Approach to Secure and Reliable Processing in Distributed Computing Systems

This paper presents a new approach for solving the problem of reliable processing of sensitive information in distributed computing systems1. Distributed systems offer redundancy that can be used to enhance reliability by means of adequate fault tolerance mechanisms. For security requirements, a given computer cannot be used to run any application . Consequently, only a given set of trusted processors can be used, thus reducing the flexibility of the network. In this paper, we first discuss the problem of ensuring both security and reliability in distributed systems. Then we present the principles of a new approach (Fragmented Data Processing), which is currently being investigated at LAAS, and that seems to be a promising approach to solve, at least partially, the problem of Secure and Reliable Processing in Distributed Computing Systems.