https://hal.inria.fr/inria-00607276Santanu, SarkarSarkarSantanuIndian Statistical Institute [Kolkata]Maitra, SubhamoySubhamoyMaitraIndian Statistical Institute [Kolkata]Cryptanalysis of Dual CRT-RSAHAL CCSD2011RSACRT-RSADual CRT-RSACryptanalysisLattices[INFO.INFO-CR] Computer Science [cs]/Cryptography and Security [cs.CR][INFO.INFO-DM] Computer Science [cs]/Discrete Mathematics [cs.DM][INFO.INFO-IT] Computer Science [cs]/Information Theory [cs.IT][MATH.MATH-IT] Mathematics [math]/Information Theory [math.IT]Saadi, Assia2011-07-08 13:51:302017-11-29 10:27:342011-07-08 13:54:10enConference papersapplication/pdf1Several schemes under the framework of Dual RSA have been proposed by Sun et al (IEEE-IT, August 2007). We here concentrate on the Dual CRT-RSA scheme and present certain range of parameters for which this is insecure. As a corollary of our work, we prove that the Dual Generalized Rebalanced-RSA (Scheme III of Sun et al) can be e ciently broken for a signi cant region where the scheme has been claimed to be secure.