A logic circuit for performing modular multiplication of a first multi-bit binary number and a second multi-bit binary number is provided. Combination logic combines the second multi-bit binary value with a group of W bits of the first multi-bit binary value every jth input cycle to generate W multi-bit...http://www.google.com.hk/patents/US20030140077?utm_source=gb-gplus-share專利 US20030140077 - Logic circuits for performing modular multiplication and exponentiation