Process of security of an electronic unit with cryptoprocessor

Details Process of security of an electronic unit with cryptoprocessor Process of security of an electronic unit with cryptoprocessor

2004-03-12

2010-06-29

Chai, Longbit (Department: 2431)

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

C726S027000, C726S028000, C726S029000, C726S030000

Reexamination Certificate

active

07747012

ABSTRACT:
The invention concerns a process for securing an electronic device incorporating a hardware component capable of autonomous implementation of calculation process f using one key K, the process involves calculating at least two new keys K′isuch that at least one of said new keys is identical to key K, and one of said new keys is different from key K, and executing said calculation process f successively with each of said calculated keys K′i, using said hardware component.

REFERENCES:
patent: WO 01/31422 (2001-05-01), None

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