METHOD AND APPARATUS FOR GENERATING CRYPTOGRAPHIC SETS OF INSTRUCTIONS AUTOMATICALLY AND CODE GENERATION

摘要

The method according to this invention concerns a method for automatically generating cryptographic algorithms with optional supplementary data, said algorithms comprising two different zones: external algorithm secrecy zone, in external parts of the algorithm exposed to side-channel analysis, and an internal purely cryptographic zone that is not exposed to side-channel analysis, such that in the algorithm secrecy zone, the code of the algorithm is locally made of random (or pseudo-random) and independent sequences of instructions and/or table-lookups chosen from some fixed set of instructions and random constants, with some fixed prescribed probability distribution, and such that the internal cryptographic security zone can be any cryptographic algorithm or method that handles algorithmic security only and does not have to be protected against side-channel attacks.