Electronic component suitable for detecting attacks by delivering energy
AssigneeOberthur Technologies
InventorsNicolas Morin, Hugues Thiebeauld De La Crouee
Life of this patent
Estimating the term…
Abstract
The electronic component comprises: reference-obtaining means for obtaining a physical magnitude referred to as a reference magnitude, which magnitude is dynamically adjustable and representative of the expected activity of said component; comparator means suitable for comparing said reference magnitude with a magnitude of the same type representative of the real activity of said component; and detector means suitable for detecting an attack as a function of the result of said comparison.
Claims15
An electronic component comprising:
- a reference-obtaining device configured to obtain a physical magnitude, referred to as a reference magnitude, which is dynamically adjustable and representative of an expected activity of said component;
- a tracking circuit configured to output a value representative of real activity of said component;
- a first comparator configured to compare said dynamically adjustable reference magnitude with a magnitude of the value of a same type representative of real activity of said component;
- and
- a detector configured to detect an attack as a function of a result of said comparison,
- wherein the component comprises a plurality of modules, the dynamically adjustable reference magnitude being a function of the active or non-active character of each module of the plurality of modules and is representative of an expected activity of the component.
A protection method for protecting an electronic component, the method comprising:
- obtaining a “reference” physical magnitude that is dynamically adjustable as representative of an expected activity of said component;
- obtaining a value representative of real activity of said component;
- comparing said reference magnitude with a magnitude of the value of the same type representative of the actual activity of said component;
- and
- detecting an attack as a function of a result of said comparison,
- wherein the component comprises at least one module, the dynamically adjustable reference magnitude being a function of the active or non-active character of each module of the plurality of modules and is representative of an expected activity of the component.
Dependencies are inferred from the claim text.