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Seminars given
April 21, 2011 - Sanitizable Signatures with Several Signers and Sanitizers
by Dr. Sébastien Canard
| Abstract: | Sanitizable signatures allow a signer of a message to give one specific receiver, called a sanitizer, the power to modify some designated parts of the signed message. Most of existing constructions consider one single signer giving such possibility to one single sanitizer. In this paper, we formalize the concept with $n$ signers and $m$ sanitizers, extending the work from PKC 2010 where n=1. We give several concrete instantiations, dealing with several kinds of anonymity and transparency. Our schemes are either based on trapdoor or proof or on trapdoor list signatures, two new cryptographic building blocks that may be of independent interest. |
Publications
Sébastien Canard, Iwen Coisel, Giacomo de Meulenaer, and Olivier Pereira. Group Signatures are Suitable for Constrained Devices, ICISC 2010, Lecture Notes in Computer Science (LNCS), Springer, December 2010 PDF BibTeX
Sébastien Canard, Iwen Coisel, Jonathan Etrog, and Marc Girault. Privacy-Preserving RFID Systems: Model and Constructions, In Cryptology ePrint Archive, July 2010 PDF BibTeX
Sébastien Canard, Iwen Coisel, and Marc Girault. Security of Privacy-Preserving RFID Systems, IEEE International Conference on RFID-Technology and Applications -- RFID-TA'10, pages 269--274, IEEE, June 2010 BibTeX
Sébastien Canard, Iwen Coisel, and Jonathan Etrog. Lighten Encryption Schemes for Secure and Private RFID Systems, In Radu Sion, Reza Curtmola, Sven Dietrich, Aggelos Kiayias, Josep M. Miret, Kazue Sako, Francesc Sebé, editor(s), Financial Cryptography Workshops, Volume 6054 of Lecture Notes in Computer Science (LNCS), pages 19 - 33, Spinger, January 2010 PDF BibTeX
Sébastien Canard, and Iwen Coisel. Data Synchronization in Privacy-Preserving RFID Authentication Schemes, Workshop on RFID Security -- RFIDSec'08, July 2008 PDF BibTeX
Iwen Coisel, Sébastien Canard, and Jacques Traoré. Complex Zero-Knowledge Proofs of Knowledge Are Easy to Use, In Willy Susilo, Joseph K. Liu, Yi Mu, editor(s), ProvSec, Volume 4784 of Lecture Notes in Computer Science (LNCS), pages 122 - 137, Springer, November 2007 PDF BibTeX
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