Authentication of sequences with the SL₂ hash function: application to video sequences

Issue title: Security in the World Wide Web

Article type: Research Article

Authors: Quisquater, Jean-Jacques^a | Joye, Marc^b

Affiliations: [a] UCL Crypto Group, Dép. d'Électricité, Université de Louvain, Place du Levant 3, B-1348 Louvain-la-Neuve, Belgium, E-mail: [email protected] | [b] UCL Crypto Group, Dép. de Malhématique, Université de Louvain, Chemin du Cyclotron 2, B-1348 Louvain-la-Neuve, Belgium, E-mail: [email protected]

Abstract: This paper presents an interesting application of the Tillich–Zémor function TZ. In particular, we emphasize the concatenation property of this one-way hash function. i.e., TZ(S|T)=TZ(S)TZ(T) where S and T are two binary strings. This property is combined with a multisignature scheme in a journalism context. The aim is to authenticate reports or interviews.

DOI: 10.3233/JCS-1997-5303

Journal: Journal of Computer Security, vol. 5, no. 3, pp. 213-223, 1997