Cryptography – Communication system using cryptography – Symmetric key cryptography
Reexamination Certificate
2005-12-06
2005-12-06
Vu, Kim (Department: 2135)
Cryptography
Communication system using cryptography
Symmetric key cryptography
C380S037000, C380S038000
Reexamination Certificate
active
06973190
ABSTRACT:
The invention concerns a method for protecting an electronic system implementing a cryptographic calculation process involving a modular exponentiation of a quantity (x), said modular exponentiation using a secret exponent (d), characterized in that said secret exponent is broken down into a plurality of k unpredictable values (d1, d2, . . . , dk), the sum of which is equal to said secret exponent.
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CP8 Technologies
Ha Leynna T.
Kondracki Edward J.
Miles & Stockbridge P.C.
Vu Kim
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