Le contenu du séminaire sera diffusé prochainement

Digital data production rises exponentially. From 33ZB of data produced in 2018, 175ZB are envisioned in 2025. To respond to associated storage needs, technologies as flash memory and hard drives reach their limits in terms of density, energy and ecological costs, and durability for long term storage. In this context, data storage on DNA molecules has recently been shown as very promising. Its basic principle is to convert digital data into synthetic DNA (deoxyribonucleic acid) molecules. DNA storage could be a million times more dense than hard drives, with a lifetime 10 to 20 times longer and an energy consumption close to zero (molecules can be kept at room temperature with no maintenance).
In this work, we are interested in securing archived data at every step of the DNA data storage chain. Data integrity and confidentiality are among the main issues with threats like data modification (e.g. writing of new data) or the theft of the DNA storage support by an attacker. Herein, we propose a solution for writing encrypted data onto synthetic DNA molecules considering the intrinsic constraints of this technology. Indeed, DNA sequences should conform to structural constraints dictated by biological synthesis and sequencing processes.