Method for making secure execution of a programme in a micorprocessor-based electronic module
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Apr 22, 2004
app pub date -
Nov 18, 2003
filing date -
Dec 21, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention concerns a method for making secure execution of a ROM-implanted programme (PROG) in a microprocessor-based electronic module comprising the following steps: intermittently triggering in an automatic reset timer included in the module, an interruption (IT1, IT2) in the execution of the programme (PROG); rerouting (60, 66) at each interruption (IT1, IT2), the execution of the programme to an interruption management routine (RITT) comprising, as first instruction, the instruction to return the interruption (IRET) (70) to the programme (62, 66) at the rerouting point of the interruption (IT1, IT2). The invention also concerns a microprocessor-based electronic module adapted to implement said method.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully