Cryptographic system and method for encrypting input data

Details Cryptographic system and method for encrypting input data Cryptographic system and method for encrypting input data

2011-03-08

2011-03-08

Pich, Ponnoreay (Department: 2435)

Cryptography

Particular algorithmic function encoding

C380S277000, C380S044000

Reexamination Certificate

active

07903811

ABSTRACT:
A cryptographic system and method for encrypting input data, in which an example system includes a table calculator configured to calculate table values composed of one of scalar multiplication values by Elliptic Curve (EC) operation, or exponentiation values by modular exponentiation operation, based on input data and the number of a portion of bits of each of secret keys. The table calculator may output one of scalar multiplication values or exponentiation values corresponding to a window that includes given bits of each of the secret keys from among the calculated table values. A logic circuit may be configured to output encrypted data by accumulating the output scalar multiplication values or by performing involution on the output exponentiation values.

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