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Illustration de l'actualité : PhD defense Han Qiu : An Efficient Data Protection Architecture Based on Fragmentation and Encryption

PhD defense Han Qiu : An Efficient Data Protection Architecture Based on Fragmentation and Encryption

vendredi
20
octobre
2017

PhD Comics : I'm defending my thesis, Mom !

Jury

Rapporteurs

  • M. Jean-Jacques Quisquater, Professeur, Université catholique de Louvain
  • M. Gildas Avoine, Professeur, INSA Rennes/IRISA

Examinateurs

  • M. Henri Maître, Professeur émérite, Télécom ParisTech
  • M. Frédéric Cuppens, Professeur, IMT Atlantique
  • M. Olivier Bettan, Head of Cyber Security R&D Lab, SAS THALES SERVICES
  • M. Jean Leneutre, Maitre de Conférences, Télécom ParisTech
  • Mme. Houda Labiod, Professeur, Télécom ParisTech, directrice de thèse
  • M. Gérard Memmi, Professeur, Télécom ParisTech

Abstract

A completely revisited data protection scheme based on selective encryption is presented. First, this new scheme is agnostic in term of data format, second it has a parallel architecture using GPGPU allowing performance to be at least comparable to full encryption algorithms. Bitmap, as a special uncompressed multimedia format, is addressed as a first use case. Discrete Cosine Transform (DCT) is the first transformation for splitting fragments, getting data protection, and storing data separately on local device and cloud servers. This work has largely improved the previous published ones for bitmap protection by providing new designs and practical experimentations. General purpose graphic processing unit (GPGPU) is exploited as an accelerator to guarantee the efficiency of the calculation compared with traditional full encryption algorithms.