Countermeasure method in an electronic component which uses...

Details Countermeasure method in an electronic component which uses... Countermeasure method in an electronic component which uses...

2006-10-17

2006-10-17

Sheikh, Ayaz (Department: 2131)

Cryptography

Particular algorithmic function encoding

C380S029000, C380S030000, C713S168000, C713S152000, C713S320000, C713S172000, C713S173000, C713S174000

Reexamination Certificate

active

07123717

ABSTRACT:
A countermeasure method in an electronic component which uses an RSA-type public key cryptographic algorithm. A first countermeasure method uses a random calculation for each new execution of the decryption algorithm with CRT. The calculations are made modulo p*r and q*t, r and t being random numbers. A second countermeasure makes the recombination random using the CRT theorem.

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