Cryptanalysis of Dual CRT-RSA

Santanu Sarkar; Subhamoy Maitra

Paper 2010/603

Cryptanalysis of Dual CRT-RSA

Santanu Sarkar and Subhamoy Maitra

Abstract

Several 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 efficiently broken for a significant region where the scheme has been claimed to be secure.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. Unknown where it was published
Keywords: RSA CRT-RSA Dual RSA Dual CRT-RSA Cryptanalysis Lattices.
Contact author(s): subho @ isical ac in
History: 2010-11-25: received
Short URL: https://ia.cr/2010/603
License: CC BY

BibTeX

@misc{cryptoeprint:2010/603,
      author = {Santanu Sarkar and Subhamoy Maitra},
      title = {Cryptanalysis of Dual {CRT}-{RSA}},
      howpublished = {Cryptology {ePrint} Archive, Paper 2010/603},
      year = {2010},
      url = {https://eprint.iacr.org/2010/603}
}