Method and Apparatus of digital signature using bit arithmetic based on CRT-RSA and Recording medium using by the same

摘要

A method and an apparatus of a digital signature using bit arithmetic based on a CRT-RSA and recording medium using by the same are provided make a encryption procedure simple by adding a simple resistor. An apparatus of a digital signature using bit arithmetic based on a CRT-RSA and recording medium is composed of an intermediate operator generating unit(810), a modular exponentiation operation unit(820), a correlation modular exponentiation operation unit(830), a CRT operator(840), a bit comparison operator area(850), and a signature authentication performing unit(860). The intermediate operator generation unit generates a first and a second operator by using a message and a prime number to be transmitted to an authenticated receiver. The modular exponentiation operation unit performs a modular operation of the message.