METHOD AND DEVICE FOR PROTECTING A PIECE OF EQUIPMENT, AN OBJECT OR A PROGRAM USING A SIM CARD DEVICE

摘要

The invention relates to a method of protecting an element such as an object, a piece of equipment or a program. The inventive method comprises the following steps consisting in: using an SIM card device (210); combining a code with a secret key (K) of the SIM card, said combination using a determined algorithm (202) of the type that is used for authentication of a mobile device (210) containing a SIM card in a mobile telephone network; saving the combined identity (SRES) thus created; and, in order to access the element thus protected, using the determined algorithm in order to calculate the combined identity of the SIM card and the code, access only being authorised if the result of the calculation provides a combined identity that is compatible with the saved combined identity.