APPARATUS FOR ENCODING ELLIPTIC CURVE

摘要

PURPOSE: An apparatus for encoding an elliptic curve is provided to enhance the security and the performance of electronic commercial transaction, electronic cash, identification and key management of an user, and an approval process system by using various elliptic curve protocols. CONSTITUTION: An elliptic curve encoding apparatus includes a register file portion(200), an elliptic curve processor calculation portion(400), an order comparator portion(500), an NAF(Non Adjacent Format) converter portion(100), and an elliptic curve processor control portion(300). The register file portion stores input data and output data to encode an elliptic curve. The elliptic curve processor calculation portion performs a calculation operation for the elliptic curve by using the stored data of the register file portion. The order comparator portion searches and compares the orders necessary for the calculation operation. The NAF converter portion supports the scalar multiplication calculation. The elliptic curve processor control portion generates a control signal to control a calculation operation mode of the elliptic curve processor.