METHOD FOR PROVIDING CHIPS WITH HIGH RE-ENGINEERING PROTECTION, PARTICULARLY FOR DIGITAL AUTHENTICATION SYSTEMS, SUCH AS SMART CARDS OR THE LIKE, AND CHIPS PRODUCED USING SAID METHOD

摘要

To increase the security of smart cards with an integrated microprocessor and integrated cryptography algorithm, the method for providing chips (6) with high security is specified, in which an operating system (OS), which is the same in respect of function and is configured from individual program modules (M), is specified for the different chips (6). The individual program modules (M) are combined with one another variably by means of a linker (14) for various chips (6) and therefore for each chip (6) an executable operating system individual to each chip (C-OS) is produced and read into a writable memory (10) of the chip (6). All operating systems individual to each chip (C-OS) have the same functionality, but a different structural configuration, and therefore re-engineering for determining the configuration of the operating system (OS) is prevented.