PROCESS OF SECURITY OF A UNIT ELECTRONIC UNIT WITH CRYPTOPROCESSOR

摘要

The invention concerns a process for securing an electronic device incorporating a hardware component capable of autonomous implementation of calculation process f using one key K. the process involves calculating at least two new keys K' such that at least one of said new keys is identical to key K, and one of said new keys is different from key K, and executing said calculation process f successively with each of said calculated keys K' , using said hardware component.