Olivier Blazy
Présentation
Professor at Ecole PolytechniqueCryptography
Information Security
Publications
Publications
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Sanitizable Signatures with Different Admissibility Policies for Multiple SanitizersACM Asia Conference on Computer and Communications Security (ASIA CCS '26), Jun 2026, Bangalore, India. ⟨10.1145/3779208.3785265⟩ |
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Bivariate proximity test-based Asynchronous Verifiable Secret SharingAfricaCrypt 2025 - 16th International Conference on Cryptology in Africa, Jul 2025, Rabat (Maroc), Morocco. pp.319-342, ⟨10.1007/978-3-031-97260-7_15⟩ |
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MAGICARPP: ModulAr GeneralIzed Check of Age Requirement while Preserving PrivacyIAB/W3C 2025 - Workshop on Age-Based Restrictions on Content Access, IETF, Oct 2025, London, United Kingdom |
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Cryptographic Accumulators: New Definitions, Enhanced Security, and Delegatable ProofsAFRICACRYPT 2024 - 15th International Conference on Cryptology, Jul 2024, Douala, Cameroon. In press |
Efficient Implementation of a Post-Quantum Anonymous Credential ProtocolARES 2023: The 18th International Conference on Availability, Reliability and Security, Aug 2023, Benevento, Italy. pp.1-11, ⟨10.1145/3600160.3600188⟩ |
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How fast do you heal? A taxonomy for post-compromise security in secure-channel establishmentUSENIX 2023 - The 32nd USENIX Security Symposium, Aug 2023, Anaheim, United States. pp.5917--5934 |
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Dually Computable Cryptographic Accumulators and Their Application to Attribute Based EncryptionCANS 2023 - Cryptology and Network Security, Oct 2023, Augusta, United States. pp.538-562, ⟨10.1007/978-981-99-7563-1_24⟩ |
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(Augmented) Broadcast Encryption from Identity Based Encryption with WildcardCryptology and Network Security 21st International Conference, CANS 2022, Abu Dhabi, United Arab Emirates, November 13–16, 2022, Proceedings, Nov 2022, Abu Dhabi, United Arab Emirates. pp.143-164, ⟨10.1007/978-3-031-20974-1_7⟩ |
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Identity-Based Encryption in DDH Hard GroupsAFRICACRYPT 2022 - 13th International Conference on Cryptology in Africa, Jul 2022, Fes, Morocco. pp.81-102, ⟨10.1007/978-3-031-17433-9_4⟩ |
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Post-Quantum and UC-secure Oblivious Transfer from SPHF with Grey Zone15th International Symposium on Foundations & Practice of Security (FPS – 2022)., Dec 2022, Ottawa, Canada |
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MARSHAL: Messaging with Asynchronous Ratchets and Signatures for faster HeALingACM Symposium on Applied Computing, Apr 2022, Virtual, Czech Republic. pp.1-8, ⟨10.1145/3477314.3507044⟩ |
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(Augmented) Broadcast Encryption from Identity Based Encryption with WildcardCANS 2022 - 21st International Conference on Cryptology and Network Security, Nov 2022, Dubai, United Arab Emirates. pp.143-164, ⟨10.1007/978-3-031-20974-1_7⟩ |
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Secure Decision Forest EvaluationARES 2021 - 16th International Conference on Availability, Reliability and Security, Aug 2021, Vienna, Austria. pp.1-12, ⟨10.1145/3465481.3465763⟩ |
Skipping the q in Group SignaturesProgress in Cryptology - INDOCRYPT 2020 - 21st International Conference on Cryptology in India, Virtual Conference, December 13-16, 2020, Proceedings, Dec 2020, Online, India. pp.553--575, ⟨10.1007/978-3-030-65277-7\_25⟩ |
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Round-optimal Constant-size Blind SignaturesSECRYPT 2020 - 17th International Conference on Security and Cryptography, Jul 2020, Lieusaint - Paris / Virtual, France. pp.213-224, ⟨10.5220/0009888702130224⟩ |
Public-Key Generation with Verifiable RandomnessAsiacrypt 2020 - 26th Annual International Conference on the Theory and Application of Cryptology and Information Security, Dec 2020, Daejeon / Virtual, South Korea. pp.97-127, ⟨10.1007/978-3-030-64837-4_4⟩ |
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CCA-Secure ABE using Tag and Pair EncodingProgress in Cryptology - INDOCRYPT 2020 - 21st International Conference on Cryptology in India, Virtual Conference, December 13-16, 2020, Proceedings, Dec 2020, Online, India. pp.691--714, ⟨10.1007/978-3-030-65277-7\_31⟩ |
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CROOT: Code-based Round-Optimal Oblivious TransferProceedings of the 17th International Joint Conference on e-Business and Telecommunications, ICETE 2020 - Volume 2: SECRYPT, Lieusaint, Paris, France, July 8-10, 2020, Jul 2020, online, France. pp.76--85, ⟨10.5220/0009776700760085⟩ |
Post-Quantum UC-Secure Oblivious Transfer in the Standard Model with Adaptive CorruptionsProceedings of the 14th International Conference on Availability, Reliability and Security, ARES 2019, Canterbury, UK, August 26-29, 2019., 2019, Canterbury, United Kingdom. pp.28:1--28:6, ⟨10.1145/3339252.3339280⟩ |
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Downgradable Identity-Based Encryption and ApplicationsTopics in Cryptology - CT-RSA 2019 - The Cryptographers' Track at the RSA Conference 2019, San Francisco, CA, USA, March 4-8, 2019, Proceedings, 2019, San Francisco, United States. pp.44--61, ⟨10.1007/978-3-030-12612-4\_3⟩ |
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Anonymous Identity Based Encryption with Traceable IdentitiesProceedings of the 14th International Conference on Availability, Reliability and Security, ARES 2019, Canterbury, UK, August 26-29, 2019., 2019, Stockholm, Sweden. pp.13:1--13:10, ⟨10.1145/3339252.3339271⟩ |
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SAID: Reshaping Signal into an Identity-Based Asynchronous Messaging Protocol with Authenticated RatchetingIEEE European Symposium on Security and Privacy, EuroS&P 2019, Stockholm, Sweden, June 17-19, 2019, 2019, Stockholm, Sweden. pp.294--309, ⟨10.1109/EuroSP.2019.00030⟩ |
Durandal: A Rank Metric Based Signature SchemeAdvances in Cryptology - EUROCRYPT 2019 - 38th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Darmstadt, Germany, May 19-23, 2019, Proceedings, Part III, 2019, Darmstadt, Germany. pp.728--758, ⟨10.1007/978-3-030-17659-4\_25⟩ |
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Spreading Alerts Quietly: New Insights from Theory and PracticeProceedings of the 13th International Conference on Availability, Reliability and Security, ARES 2018, Hamburg, Germany, August 27-30, 2018, 2018, Hamburg, Germany. pp.30:1--30:6, ⟨10.1145/3230833.3230841⟩ |
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Non-Interactive Key Exchange from Identity-Based EncryptionARES, Aug 2018, Hamburg, Germany. pp.1-10, ⟨10.1145/3230833.3230864⟩ |
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Spreading Alerts QuietlyARES the 13th International Conference, Aug 2018, Hamburg, Germany. pp.1-6 |
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Almost Optimal Oblivious Transfer from QA-NIZK15th International Conference on Applied Cryptography and Network Security (ACNS 2017), Jul 2017, Kanazawa, Japan. pp.579-598, ⟨10.1007/978-3-319-61204-1_29⟩ |
Efficient ID-based Designated Verifier SignatureProceedings of the 12th International Conference on Availability, Reliability and Security, Reggio Calabria, Italy, August 29 - September 01, 2017, 2017, Unknown, Unknown Region. pp.44:1--44:8, ⟨10.1145/3098954.3103157⟩ |
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An Efficient Protocol for UAS SecurityIntegrated Communications, Navigation and Surveillance Conference (ICNS), 2017, Apr 2017, Herndon, VA, United States. ⟨10.1109/ICNSURV.2017.8011987⟩ |
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A code-based blind signatureISIT 2017 - IEEE International Symposium on Information Theory, Jun 2017, Aachen, Germany. pp.2718--2722, ⟨10.1109/ISIT.2017.8007023⟩ |
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Mitigating Server Breaches in Password-Based Authentication: Secure and Efficient SolutionsCT-RSA 2016, Feb 2016, San Francisco, France. ⟨10.1007/978-3-319-29485-8_1⟩ |
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Adaptive Oblivious Transfer and GeneralizationAdvances in Cryptology – ASIACRYPT 2016 22nd International Conference on the Theory and Application of Cryptology and Information Security, 2016, Hanoi, Vietnam. ⟨10.1007/978-3-662-53890-6_8⟩ |
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Generic Construction of UC-Secure Oblivious TransferApplied Cryptography and Network Security - 13th International Conference, ACNS 2015, New York, NY, USA, June 2-5, 2015, Revised Selected Papers, 2015, New York, USA, United States. pp.65 - 86, ⟨10.1007/978-3-319-28166-7_4⟩ |
A Practical Group Signature Scheme based on Rank MetricWaifi 2016, 2016, Unknown, Unknown Region |
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A Code-Based Group Signature SchemeThe 9th International Workshop on Coding and Cryptography 2015 WCC2015, Apr 2015, Paris, France |
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Two Secure Anonymous Proxy-based Data Storages13th International Joint Conference on e-Business and Telecommunications (ICETE 2016), 2016, Lisbon, Portugal. pp.251--258, ⟨10.5220/0005962402510258⟩ |
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Anonymizable Ring Signature Without Pairing9th International Symposium on Foundations & Practice of Security, 2016, Québec, Canada |
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Structure-Preserving Smooth Projective Hashing22nd Annual International Conference on the Theory and Applications of Cryptology and Information Security (ASIACRYPT 2016), Feb 2016, Hanoi, Vietnam |
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Non-Interactive Plaintext (In-)Equality Proofs and Group Signatures with Verifiable Controllable LinkabilityCT-RSA 2016, Feb 2016, San Francisco, United States. pp.127-143, ⟨10.1007/978-3-319-29485-8_8⟩ |
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Non-Interactive Zero-Knowledge Proofs of Non-MembershipTopics in Cryptology - CT-RSA 2015, The Cryptographer's Track at the RSA Conference 2015, Apr 2015, San Francisco, United States. pp.145-164, ⟨10.1007/978-3-319-16715-2_8⟩ |
Tightly-Secure Signatures from Chameleon Hash FunctionsPublic-Key Cryptography - PKC 2015 - 18th IACR International Conference on Practice and Theory in Public-Key Cryptography, Gaithersburg, MD, USA, March 30 - April 1, 2015, Proceedings, 2015, Washington DC, United States. pp.256--279, ⟨10.1007/978-3-662-46447-2\_12⟩ |
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(Hierarchical) Identity-Based Encryption from Affine Message AuthenticationAdvances in Cryptology - Proceedings of CRYPTO '14, 2014, Santa Barbara, California, United States. pp.408-426, ⟨10.1007/978-3-662-44371-2_23⟩ |
Analysis and Improvement of Lindell's UC-Secure Commitment SchemesACNS 2013 - 11th International Conference Applied Cryptography and Network Security, Jun 2013, Banff, Canada. pp.534-551, ⟨10.1007/978-3-642-38980-1_34⟩ |
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SPHF-Friendly Non-Interactive CommitmentsASIACRYPT 2013, Dec 2013, Bangalore, India. pp.214-234, ⟨10.1007/978-3-642-42033-7_12⟩ |
Efficient UC-Secure Authenticated Key-Exchange for Algebraic LanguagesPKC 2013 - 16th International Conference on Practice and Theory in Public-Key Cryptography, Feb 2013, Nara, Japan. pp.272-291, ⟨10.1007/978-3-642-36362-7_18⟩ |
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New Techniques for SPHFs and Efficient One-Round PAKE ProtocolsCRYPTO 2013 - 33rd Annual Cryptology Conference, Aug 2013, Santa Barbara, CA, United States. pp.449-475, ⟨10.1007/978-3-642-40041-4_25⟩ |
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Round-Optimal Privacy-Preserving Protocols with Smooth Projective Hash FunctionsTCC 2012 - Ninth IACR Theory of Cryptography Conference, Mar 2012, Taormina, Italy. pp.94-112, ⟨10.1007/978-3-642-28914-9_6⟩ |
Compact Round-Optimal Partially-Blind SignaturesSCN 2012 - 8th International Conference Security and Cryptography for Networks, Sep 2012, Amalfi, Italy. pp.95-112, ⟨10.1007/978-3-642-32928-9_6⟩ |
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Achieving Optimal Anonymity in Transferable E-Cash with a JudgeAFRICACRYPT 2011 - 4th International Conference on Cryptology in Africa, Jul 2011, Dakar, Senegal. pp.206-223, ⟨10.1007/978-3-642-21969-6_13⟩ |
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Signatures on Randomizable CiphertextsPKC 2011 - Proceedings of the 2011 International Conference on Practice and Theory in Public Key Cryptography, Mar 2011, Taormina, Italy. pp.403-422, ⟨10.1007/978-3-642-19379-8_25⟩ |
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Batch Groth-SahaiApplied Cryptography and Network Security, 8th International Conference, ACNS 2010, Jun 2010, Beijing, China. pp.218-235, ⟨10.1007/978-3-642-13708-14⟩ |
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Information Security Theory and PracticeSpringer International Publishing, LNCS-11469, 2019, Lecture Notes in Computer Science, 978-3-030-20073-2. ⟨10.1007/978-3-030-20074-9⟩ |
A Correction to a Code-Based Blind Signature SchemeCode-Based Cryptography, 13150, Springer International Publishing, pp.84-94, 2022, Lecture Notes in Computer Science, ⟨10.1007/978-3-030-98365-9_5⟩ |
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A Rank Metric Code-Based Group Signature SchemeCode-Based Cryptography, 13150, Springer International Publishing, pp.1-21, 2022, Lecture Notes in Computer Science, ⟨10.1007/978-3-030-98365-9_1⟩ |
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Hash Proof Systems over Lattices RevisitedPublic-Key Cryptography - PKC 2018 - 21st IACR International Conference on Practice and Theory of Public-Key Cryptography, pp.644-674, 2018 |
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Traceable Signature with Stepping CapabilitiesDavid Naccache. Cryptography and Security: From Theory to Applications : Essays Dedicated to Jean-Jacques Quisquater on the Occasion of His 65th Birthday, 6805, Springer, pp.108-131, 2012, LNCS - Lecture Notes in Computer Science, 978-3-642-28367-3. ⟨10.1007/978-3-642-28368-0_10⟩ |
LOCKER - LOw rank parity ChecK codes EncRyption2017, http://nicolas-aragon.fr/locker/ |
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Rank Quasi-Cyclic (RQC)2017, https://pqc-rqc.org/ |
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Hamming Quasi-Cyclic (HQC)2017, https://pqc-hqc.org/ |
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LAKE - Low rAnk parity check codes Key Exchange2017, http://nicolas-aragon.fr/lake |
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Ouroboros-R2017, https://pqc-ouroborosr.org/ |
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BIG QUAKE BInary Goppa QUAsi–cyclic Key Encapsulation2017 |
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BIKE: Bit Flipping Key Encapsulation2017 |
New Techniques for SPHFs and Efficient One-Round PAKE Protocols[Research Report] Cryptology ePrint Archive: Report 2015/188, IACR. 2015 |
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Preuves de connaissances interactives et non-interactivesCryptographie et sécurité [cs.CR]. Université Paris-Diderot - Paris VII, 2012. Français. ⟨NNT : ⟩ |