@inproceedings{iscc2009b, title = {A Secure Variant of the Hill Cipher}, author = {Toorani, M. and Falahati, A.}, booktitle = {Proceedings of the 14th IEEE Symposium on Computers and Communications (ISCC'09)}, pages = {313-316}, publisher = {IEEE ComSoc}, year = 2009, month = {July}, abstract = {The Hill cipher is a classical symmetric encryption algorithm that succumbs to the know-plaintext attack. Although its vulnerability to cryptanalysis has rendered it unusable in practice, it still serves an important pedagogical role in cryptology and linear algebra. In this paper, a variant of the Hill cipher is introduced that makes the Hill cipher secure while it retains the efficiency. The proposed scheme includes a ciphering core for which a cryptographic protocol is introduced.}, }