A secure variant of the Hill Cipher

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.

• Type: Conference
• Year: 2009
• Where: ISCC
• Authors: Mohsen Toorani, Abolfazl Falahati
• Keywords: Communications, Hill Cipher, Hill Cipher Secure, ISCC 2009, Symmetric Encryption Algorithm