METHOD FOR MAKING SECURE ONE OR SEVERAL COMPUTER INSTALLATIONS USING A COMMON CRYPTOGRAPHIC SECRET KEY ALGORITHM, USE OF THE METHOD AND COMPUTER INSTALLATION

摘要

The invention concerns a method for making secure one or several computer installations using a common cryptographic secret key algorithm (Ks), characterised in that the way to perform said computation depends, for each computer installation and for each secret key, one secret data (Ds) stored in a secret zone of the computer installation(s).