Updating key size estimations for pairings

Razvan Barbulescu (1) , Sylvain Duquesne (2)

1 IMJ-PRG (UMR_7586) - Institut de Mathématiques de Jussieu - Paris Rive Gauche
2 IRMAR - Institut de Recherche Mathématique de Rennes

Recent progress on NFS imposed a new estimation of the security of pairings. In this work we study the best attacks against some of the most popular pairings. It allows us to propose new pairing-friendly curves of 128 bits and 192 bits of security.

Domaines: Cryptographie et sécurité [cs.CR]

Razvan Barbulescu, Sylvain Duquesne. Updating key size estimations for pairings. 2017. ⟨hal-01534101v1⟩