Authenticating Operation-based History in Collaborative Systems - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2012

Authenticating Operation-based History in Collaborative Systems

Hien Thi Thu Truong
  • Function : Author
  • PersonId : 912859
Claudia-Lavinia Ignat


Within last years multi-synchronous collaborative editing systems became widely used. Multi-synchronous collaboration maintains multiple, simultaneous streams of activity which continually diverge and synchronized. These streams of activity are represented by means of logs of operations, i.e. user modifications. A malicious user might tamper his log of operations. At the moment of synchronization with other streams, the tampered log might generate wrong results. In this paper, we propose a solution relying on hash-chain based authenticators for authenticating logs that ensure the authenticity, the integrity of logs, and the user accountability. We present algorithms to construct authenticators and verify logs. We prove their correctness and provide theoretical and practical evaluations.
Fichier principal
Vignette du fichier
group155-truong.pdf (792.77 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-00761045 , version 1 (04-12-2012)



Hien Thi Thu Truong, Claudia-Lavinia Ignat, Pascal Molli. Authenticating Operation-based History in Collaborative Systems. ACM 2012 International Conference on Support Group Work, Oct 2012, Sanibel Island, FL, United States. pp.131-140, ⟨10.1145/2389176.2389197⟩. ⟨hal-00761045⟩
270 View
474 Download



Gmail Facebook X LinkedIn More