| 摘要 |
<p>The invention concerns a portable electronic device for safe communication with at least one electronic unit comprising means for data storage (8, 9), means (10) interfacing with at least an external tool for loading data in said storage means, and means for data processing (7) including initialisation means for enabling, in response to the application of a secret personalization access code, to modify said access code and personalization data loading into said storage means. Said device comprises a plurality of functions and particular re-programmable secret access codes different from one another (KPERX, KPERY) and each assigned to personalizing a particular function (X, Y...) of said device, and inhibiting means (7; 222) adapted for authorising said processing means access to loading and/or reading personalization data particular to a function only in response to the application of the access code assigned to said function.</p> |
