@misc{cryptoeprint:2015:483, author = {Shi Bai and Adeline Langlois and Tancr{\`e}de Lepoint and Amin Sakzad and Damien Stehle and Ron Steinfeld}, title = {Improved security proofs in lattice-based cryptography: using the R\'enyi divergence rather than the statistical distance}, howpublished = {Cryptology ePrint Archive, Report 2015/483}, year = {2015}, url = {https://eprint.iacr.org/2015/483}, }