A New Lattice Construction for Partial Key Exposure Attack for RSA
- Cite this paper as:
- Aono Y. (2009) A New Lattice Construction for Partial Key Exposure Attack for RSA. In: Jarecki S., Tsudik G. (eds) Public Key Cryptography – PKC 2009. PKC 2009. Lecture Notes in Computer Science, vol 5443. Springer, Berlin, Heidelberg
In this paper we present a new lattice construction for a lattice based partial key exposure attack for the RSA cryptography. We consider the situation that the RSA secret key d is small and a sufficient amount of the LSBs (least significant bits) of d are known by the attacker. We show that our lattice construction is theoretically more efficient than known attacks proposed in [2,7].