Cryptography – Particular algorithmic function encoding – Public key
Reexamination Certificate
2011-03-29
2011-03-29
Lanier, Benjamin E (Department: 2432)
Cryptography
Particular algorithmic function encoding
Public key
C380S286000, C708S620000, C713S171000, C713S193000
Reexamination Certificate
active
07916860
ABSTRACT:
A scalar multiplication apparatus may include at least two encryptors, each adapted to receive an input point and a changed secret key to generate an encrypted output point; a first logic circuit adapted to receive the encrypted output points to perform a first logic operation; a second logic circuit adapted to receive a first logic operation result and a secret key to perform a second logic operation and generate the changed secret key; and a random number generator adapted to generate random number data. A scalar multiplication method may include receiving an input point and a changed secret key, generating first and second encrypted output points from the input point and changed secret key, performing a first logic operation on the first and second encrypted output points, and performing a second logic operation on a first logic operation result and a secret key and generating the changed secret key.
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Armouche Hadi
Harness & Dickey & Pierce P.L.C.
Lanier Benjamin E
Samsung Electronics Co,. Ltd.
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