System and process for securing flows

Abstract

Method and system for securing upstream data streams to an embedded computer (C) receiving data from a plurality of external terminals (T1, T2a, T2b, T2c), implementing the following successive steps: Obfuscation of data, transmitted by one of the plurality of external terminals (T1, T2a, T2b, T2c) to a processing device (3) via the embedded computer (C), so as to render them, at least partially, uninterpretable by the embedded computer (C); Processing of the data, by the processing device (3), comprising removing the obfuscation from said previously obfuscated data and verifying the integrity of the data; Transmission of the verified data to the embedded computer (C). Fig. 2.