Computer cryptographic techniques for processing and storage of confidential information
E. V. KKISHNAMUKTHY · International Journal of Control · 1970
This paper is concerned with basic techniques that are suitable for computational cryptography. The difficulties involved in constructing suitable crypto-programmes as well as the criteria for the choice of crypto-programmes are discussed. The relevant mathematical properties of transformations are worked out. On this basis, suitable transformation techniques such as arithmetical, logic, matrix, topological, functional and hierarchical schemes are described. Finally, a brief discussion is given on the system design for crypto -programming.