Disclaimer: This page refers to former member of the group. Validity or accuracy of the following information is thus not guaranteed in any way.

Address: | Microelectronics Laboratory, Place du Levant, 3 |

Office: | b.124 |

Voice: | +32 (0) 10 47 80 62 |

Fax: | +32 (0) 10 47 25 98 |

E-Mail: | |

Homepage: | http://perso.ens-lyon.fr/benoit.libert/ |

## Publications

Benoit Libert, Thomas Peters, and Chen Qian. **Logarithmic-Size Ring Signatures With Tight Security from the DDH Assumption**, In Javier Lopez, Jianying Zhou, Miguel Soriano, editor(s), *Esorics 2018*, Lecture Notes in Computer Science, pages 288--308, Springer, September 2018, To appear BibTeX

Benoit Libert, Thomas Peters, and Chen Qian. **Structure-Preserving Chosen-Ciphertext Security With Shorter Verifiable Ciphertexts**, In Serge Fehr, editor(s), *Public-Key Cryptography -- PKC'17*, Lecture Notes in Computer Science, Spinger, March 2017, To appear BibTeX

Benoit Libert, Fabrice Mouhartem, Thomas Peters, and Moti Yung. **Practical ``Signatures with Efficient Protocols'' from Simple Assumptions**, In X.F. Wang & X. Huang, editor(s), *ASIACCS 2016*, ACM, May 2016 BibTeX

Benoit Libert, Thomas Peters, Marc Joye, and Moti Yung. **Compactly Hiding Linear Spans: Tightly Secure Constant-Size Simulation-Sound QA-NIZK Proofs and Applications**, In T. Iwata & J. H. Cheon, editor(s), *Asiacrypt'15*, Volume 9452 of Lecture Notes in Computer Science, Spinger, December 2015 BibTeX

Benoit Libert, Thomas Peters, and Moti Yung. **Short Group Signatures via Structure-Preserving Signatures: Standard Model Security from Simple Assumptions**, In R. Gennaro & M. Robshaw, editor(s), *Crypto'15*, Volume 9216 of Lecture Notes in Computer Science, pages 296--316, Springer, August 2015 BibTeX

Benoit Libert, Marc Joye, Moti Yung, and Thomas Peters. **Secure Efficient History-Hiding Append-Only Signatures in the Standard Model**, In Jonathan Katz, editor(s), *Public-Key Cryptography - PKC'15*, Volume 9020 of Lecture Notes in Computer Science, pages 450--473, Springer, March 2015 BibTeX

Benoit Libert, Marc Joye, Thomas Peters, and Moti Yung. **Concise Multi-Challenge CCA-secure Encryption and Signatures with Almost Tight Security**, In Iwata and Sarkar, editor(s), *Asiacrypt 2014*, Lecture Notes in Computer Science, Spinger, December 2014 BibTeX

Benoit Libert, Thomas Peters, Marc Joye, and Moti Yung. **Non-Malleability from Malleability: Simulation-Sound Quasi-Adaptive NIZK Proofs and CCA2-Secure Encryption from Homomorphic Signatures**, In P.Q. Nguyen & E. Oswald, editor(s), *Eurocrypt 2014*, Lecture Notes in Computer Science, Spinger, May 2014 BibTeX

Benoit Libert, Moti Yung, Marc Joye, and Thomas Peters. **Traceable Group Encryption**, In H. Krawczyk & A. Waissbein, editor(s), *Public-Key Cryptography – PKC 2014*, Lecture Notes in Computer Science, Spinger, March 2014 BibTeX

Benoit Libert, Thomas Peters, Marc Joye, and Moti Yung. **Linearly Homomorphic Structure-Preserving Signatures and Their Applications**, In H. Handschuh & R. Canetti & J. Garay, editor(s), *Crypto 2013*, Lecture Notes in Computer Science, Springer, August 2013 BibTeX

Nuttapong Attrapadung, Benoit Libert, and Thomas Peters. **Efficient Completely Context-Hiding Quotable and Linearly Homomorphic Signatures**, In K. Kurosawa & G. Hanaoka, editor(s), *Public-Key Cryptography – PKC 2013*, Volume 7778 of Lecture Notes in Computer Science, Springer, February 2013 BibTeX

Nuttapong Attrapadung, Benoit Libert, and Thomas Peters. **Computing on Authenticated Data: New Privacy Definitions and Constructions**, In X. Wang & K. Sako, editor(s), *Asiacrypt 2012*, Volume 7658 of Lecture Notes on Computer Science, pages 367-385 , Springer, December 2012 BibTeX

Benoit Libert, Thomas Peters, and Moti Yung. **Group Signatures with Almost-for-free Revocation**, In R. Safavi-Naini & R. Canetti, editor(s), *Crypto 2012*, Volume 7417 of Lecture Notes in Computer Science, pages 571-589, Springer, August 2012 BibTeX

Benoit Libert, Kenneth G. Paterson, and Elizabeth A. Quaglia. **Anonymous Broadcast Encryption: Adaptive Security and Efficient Constructions in the Standard Model**, In M. Fischlin, J. Buchmann & M. Manulis, editor(s), *Public Key Cryptography 2012 (PKC 2012)*, Volume 7293 of Lecture Notes in Computer Science, pages 206-224, Springer, May 2012 BibTeX

Benoit Libert, Thomas Peters, and Moti Yung. **Scalable Group Signatures with Revocation**, In D. Pointcheval & T. Johansson, editor(s), *Eurocrypt 2012*, Volume 7237 of Lecture Notes in Computer Science, pages 609-627, Springer, April 2012 BibTeX

Benoit Libert, and Moti Yung. **Non-Interactive CCA-Secure Threshold Cryptosystems with Adaptive Security: New Framework and Constructions**, In R. Cramer, editor(s), *9th Theory of Cryptography Conference (TCC 2012)*, Volume 7194 of Lecture Notes in Computer Science, pages 75-93, Springer, March 2012, BibTeX

Javier Herranz, Fabien Laguillaumie, Benoit Libert, and Carla Ràfols. **Short Attribute-Based Signatures for Threshold Predicates**, In O. Dunkelman, editor(s), *RSA Conference -- Cryptographers' Track 2012 (CT-RSA 2012)*, Volume 7178 of Lecture Notes in Computer Sciences, pages 51-67, Springer, February 2012 BibTeX

Malika Izabachène, Benoit Libert, and Damien Vergnaud. **Block-wise P-signatures and Non-Interactive Anonymous Credentials with Efficient Attributes**, In L. Chen, editor(s), *13th IMA International Conference on Cryptography and Coding (IMACC 2011)*, Volume 7089 of Lecture Notes on Computer Science, pages 431-450, Springer, December 2011, BibTeX

Brett Hemenway, Benoit Libert, Rafail Ostrovsky, and Damien Vergnaud. **Lossy Encryption: Constructions from General Assumptions and Efficient Selective Opening Chosen Ciphertext Security**, In D.-H. Lee & X. Wang, editor(s), *Asiacrypt 2011*, Volume 7073 of Lecture Notes in Computer Science, pages 70-88, Spinger, December 2011, BibTeX

Marc Fischlin, Benoit Libert, and Mark Manulis. **Non-Interactive and Re-Usable Universally Composable String Commitments with Adaptive Security**, In D.-H. Lee & X. Wang, editor(s), *Asiacrypt 2011*, Volume 7073 of Lecture Notes in Computer Science, pages 468-485, Spinger, December 2011, BibTeX

Benoit Libert, and Moti Yung. **Adaptively Secure Non-Interactive Threshold Cryptosystems**, In J. Sgall, L. Aceto & M. Henzinger, editor(s), *38th International Colloquium on Automata, Languages and Programming (ICALP 2011) - Track C*, Volume 6756 of Lecture Notes in Computer Science (LNCS), pages 588-600, Springer, July 2011, BibTeX

Benoit Libert, and Moti Yung. **Efficient Traceable Signatures in the Standard Model**, In Theoretical Computer Science, Volume 412-12-14, pages 1220-1242, March 2011 BibTeX

Benoit Libert, and Damien Vergnaud. **Unidirectional Chosen-Ciphertext Secure Proxy Re- Encryption**, In IEEE Transactions on Information Theory, Volume 57-3, pages 1786-1802, March 2011 BibTeX

Nuttapong Attrapadung, and Benoit Libert. **Homomorphic Network Coding Signatures in the Standard Model**, In R. Gennaro, editor(s), *Public Key Cryptography 2011 (PKC 2011)*, Volume 6571 of Lecture Notes in Computer Science (LNCS), pages 17-34, Springer, March 2011, BibTeX

Nuttapong Attrapadung, Benoit Libert, and Elie de Panafieu. **Expressive Key-Policy Attribute-Based Encryption with Constant-Size Ciphertexts**, In R. Gennaro, editor(s), *Public Key Cryptography 2011 (PKC 2011)*, Volume 6571 of Lecture Notes in Computer Science (LNCS), pages 90-108, Springer, March 2011, BibTeX

Benoit Libert, Jean-Jacques Quisquater, and Moti Yung. **Key Evolution Systems in Untrusted Update Environments**, In ACM Transactions on Information and System Security (TISSEC), Volume 13-4, December 2010 BibTeX

Benoit Libert, and Moti Yung. **Efficient Completely Non-Malleable Public Key Encryption**, In P. Spirakis, S. Abramsky & F. Meyer auf der Heide, editor(s), *37th International Colloquium on Automata, Languages and Programming (ICALP 2010) - Track A*, Volume 6198 of Lecture Notes in Computer Science (LNCS), pages 127-139, Springer, July 2010, To appear BibTeX

Nuttapong Attrapadung, and Benoit Libert. **Functional Encryption for Inner Product: Achieving Constant-Size Ciphertexts with Adaptive Security or Support for Negation**, In P. Nguyen and D. Pointcheval, editor(s), *13th International Conference on Practice and Theory in Public Key Cryptography (PKC 2010)*, Volume 6056 of Lecture Notes in Computer Science (LNCS), pages 384-402, Springer, May 2010 BibTeX

David Galindo, Benoit Libert, Marc Fischlin, Georg Fuchsbauer, Anja Lehmann, Mark Manulis, and Dominique Schröder. **Public-Key Encryption with Non-Interactive Opening: New Constructions and Stronger Definitions**, In D. Bernstein and T. Lange, editor(s), *Progress in Cryptology - Africacrypt 2010*, Volume 6055 of Lecture Notes in Computer Science (LNCS), pages 333-350, Springer, May 2010 BibTeX

Benoit Libert, and Moti Yung. **Dynamic Fully Foward-Secure Group Signatures**, In D. Basin and P. Liu, editor(s), *5th ACM Symposium on Information, Computer and Communications Security (AsiaCCS 2010)*, ACM Press, April 2010, to appear BibTeX

Benoit Libert, and Moti Yung. **Concise Mercurial Vector Commitments and Independent Zero-Knowledge Sets with Short Proofs**, In D. Micciancio, editor(s), *Theory of Cryptography Conference 2010 (TCC'10)*, Volume 5978 of Lecture Notes in Computer Science (LNCS), pages 499-517, Spinger, February 2010, BibTeX

Benoit Libert, and Damien Vergnaud. **Group Signatures with Verifier-Local Revocation and Backward Unlinkability in the Standard Model**, In A. Miyaji and J. Garay, editor(s), *8th International Conference on Cryptology and Network Security (CANS 2009)*, Volume 5888 of Lecture Notes in Computer Science, pages 498-517, Springer, December 2009 BibTeX

Julien Cathalo, Benoit Libert, and Moti Yung. **Group Encryption: Non-Interactive Realization in the Standard Model**, In M. Matsui, editor(s), *Asiacrypt 2009*, Volume 5912 of Lecture Notes in Computer Science, pages 179-196, Springer, December 2009 BibTeX

Benoit Libert, and Moti Yung. **Efficient Traceable Signatures in the Standard Model**, In H. Shacham and B. Waters, editor(s), *3rd International Conference on Pairing-Based Cryptography (Pairing 2009)*, Volume 5671 of Lecture Notes in Computer Science, pages 187-205, Springer, August 2009 BibTeX

Benoit Libert, and Damien Vergnaud. **Adaptive-ID Secure Revocable Identity-Based Encryption**, In M. Fischlin, editor(s), *Topics in Cryptology - CT-RSA 2009*, Volume 5473 of Lecture Notes in Computer Science, pages 1-15, Springer, April 2009 BibTeX

Benoit Libert, and Damien Vergnaud. **Towards Black-Box Accountable Authority IBE with Short Ciphertexts and Private Keys**, In G. Tsudik and S. Jarecki, editor(s), *Public Key Cryptography 2009 (PKC 2009)*, Volume 5443 of Lecture Notes in Computer Science, pages 235-255, Springer, March 2009 BibTeX

Benoit Libert, and Damien Vergnaud. **Multi-Use Unidirectional Proxy Re-Signatures**, In P. Syverson and S. Jha, editor(s), *15th ACM Conference on Computer and Communications Security (ACM-CCS 2008)*, pages 511-520, ACM Press, October 2008, BibTeX

Benoit Libert, and Damien Vergnaud. **Tracing Malicious Proxies in Proxy Re-Encryption**, In S. Galbraith and K. Paterson, editor(s), *2nd International Conference on Pairing-Based Cryptography (Pairing 2008)*, Volume 5209 of Lecture Notes in Computer Science, pages 332-353, Springer, September 2008, To Appear BibTeX

Benoit Libert, and Damien Vergnaud. **Unidirectional Chosen-Ciphertext Secure Proxy Re-Encryption**, In R. Cramer , editor(s), *11th International Workshop on Practice and Theory in Public Key Cryptography (PKC 2008)*, Volume 4939 of Lecture Notes in Computer Science, pages 360-379, Springer, March 2008 BibTeX

Alexander W. Dent, Benoit Libert, and Kenneth G. Paterson. **Certificateless Encryption Schemes Strongly Secure in the Standard Model**, In R. Cramer, editor(s), *11th International Workshop on Practice and Theory in Public-Key Cryptography (PKC 2008)*, Volume 4939 of Lecture Notes in Computer Science, pages 344-359, Springer, March 2008 BibTeX

Benoit Libert, Jean-Jacques Quisquater, and Moti Yung. **Forward-Secure Signatures in Untrusted Update Environments: Efficient and Generic Constructions**, In S. De Capitani di Vimercati and P. Syverson, editor(s), *14th ACM Conference on Computer and Communications Security (ACM CCS'07)*, pages 266-275, ACM, October 2007 BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **Practical Time Capsule Signatures in the Standard Model from Bilinear Maps**, In T. Takagi and T. Okamoto, editor(s), *1st International Conference on Pairing-based Cryptography (Pairing 2007)*, Volume 4575 of Lecture Notes in Computer Science, pages 23-38, Springer, July 2007 BibTeX

Benoit Libert, Jean-Jacques Quisquater, and Moti Yung. **Parallel Key-Insulated Public Key Encryption Without Random Oracles**, In T. Okamoto and X. Wang, editor(s), *Public Key Cryptography 2007 (PKC'07)*, Volume 4450 of Lecture Notes in Computer Science, pages 298-314, Springer, April 2007 BibTeX

Benoit Libert, Jean-Jacques Quisquater, and Moti Yung. **Efficient Intrusion-Resilient Signatures Without Random Oracles**, In H. Lipmaa and M. Yung, editor(s), *Inscrypt 2006*, Volume 4318 of Lecture Notes in Computer Science, pages 27-41, Springer, December 2006 BibTeX

Fabien Laguillaumie, Benoit Libert, and Jean-Jacques Quisquater. **Universal Designated Verifier Signatures Without Random Oracles or Non-Black Box Assumptions**, In R. De Prisco and M. Yung, editor(s), *Security and Cryptography for Networks (SCN'06)*, Volume 4116 of Lecture Notes in Computer Science, pages 63-77, Springer, September 2006, To Appear BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **On Constructing Certificateless Cryptosystems from Identity Based Encryption**, In M. Yung, editor(s), *Public Key Cryptography 2006 (PKC'06)*, Volume 3958 of Lecture Notes in Computer Science, pages 474-490, Springer, April 2006 BibTeX

Paulo S. L. M. Barreto, Benoit Libert, Noel McCullagh, and Jean-Jacques Quisquater. **Efficient and Provably-Secure Identity-Based Signatures and Signcryption from Bilinear Maps**, In B. Roy, editor(s), *Asiacrypt 2005*, Volume 3788 of Lecture Notes in Computer Science, pages 515-532, Springer, December 2005 PDF BibTeX

Julien Cathalo, Benoit Libert, and Jean-Jacques Quisquater. **Efficient and Non-Interactive Timed-Release Encryption**, In S. Qing, W. Mao, J. Lopez and G. Wang, editor(s), *Information and Communications Security: 7th International Conference, ICICS 2005*, Volume 3783 of Lecture Notes in Computer Science, pages 291-303, Springer, December 2005 PDF BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **Identity Based Encryption without Redundancy**, In J. Ioannidis, A. Keromytis and M. Yung, editor(s), *3rd Applied Cryptography and Network Security conference (ACNS'05)*, Volume 3531 of Lecture Notes in Computer Science, pages 285-300, Springer, June 2005 BibTeX

Julien Cathalo, Benoit Libert, and Jean-Jacques Quisquater. **Cryptanalysis of a Verifiably Committed Signature Scheme based on GPS and RSA**, In Kan Zhang, Yuliang Zheng, editor(s), *Information Security Conference (ISC) 2004*, Volume 3225 of Lecture Notes in Computer Science, pages 52-60, Springer-Verlag, September 2004 PDF BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **Improved Signcryption from q-Diffie-Hellman Problems**, In Carlo Blundo, editor(s), *4h Conference on Security in Communication Networks '04 (SCN'04)*, Volume 3352 of Lecture Notes in Computer Science, pages 220-234, Spinger-Verlag, September 2004 BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **What Is Possible with Identity Based Cryptography for PKIs and What Still Must Be Improved**, In S. Katsikas, S. Gritzalis, J. Lopez, editor(s), *First European PKI Workshop (EuroPKI'04)*, Volume 3093 of Lecture Notes in Computer Science, pages 57-70, Springer-Verlag, June 2004 BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **Efficient Signcryption with Key Privacy from Gap Diffie-Hellman Groups**, In F. Bao, editor(s), *Public Key Cryptography 2004 (PKC'04)*, Volume 2947 of Lecture Notes in Computer Science, pages 187-200, Spinger-Verlag, March 2004 PDF BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **Identity Based Undeniable Signatures**, In T. Okamoto, editor(s), *Cryptographer's Track -- RSA 2004*, Volume 2964 of Lecture Notes in Computer Science, pages 112-125, Springer-Verlag, February 2004 PDF BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **New identity based signcryption schemes from pairings**, *IEEE Information Theory Workshop 2003*, pages 155-158, January 2003, extended versio PDF BibTeX

Benoit Libert, and Jean-Jacques Quisquater. **Efficient Revocation and Threshold Pairing Based Cryptosystems**, *22nd Symposium on Principles of Distributed Computing (PODC 2003)*, pages 163-171, ACM Press, January 2003 PDF BibTeX