The RSA Cryptography Processor

Abstract

In commercial applications, a minimum ciphering rate of 64 K bit/sec is required which will be the transmission rate of public digital networks. In contrast, the RSA method has a very slow ciphering rate particulary when using software implementations of the algorithm. The solution of this problem is a hardware implementation of the RSA algorithm. A cryptography processor, however, consisting of standard chips like bit slice processors again does not achieve the speed necessary. Moreover, in a multi-chip processor, the security of the key management system cannot be guaranteed. Therefore, a single-chip implementation of the RSA algorithm seems to be the only solution. Such a solution is presented as an RSA Cryptography Processor (CP).