Overview
My research interests include cryptography and its applications to secure biometrics, data-centric security, and network security. Since joining the French Air and Space Force Academy, I have also developed an interest in communication infrastructures in the aerospace domain, especially for service continuity, distributed computing in space environments, and security issues related to applications of defense interest.
Publications
Journal articles
[1]
D. Chagnon, K. Thiry-Atighehchi, and G. Chalhoub, “A survey on path validation: Towards digital sovereignty,” Comput. Networks, vol. 256, p. 110905, 2025, doi: 10.1016/J.COMNET.2024.110905.
[2]
A. Durbet, P.-M. Grollemund, and K. Thiry-Atighehchi, “Biometric untargeted attacks: A case study on near-collisions,” Inf. Sci., vol. 716, p. 122217, 2025, doi: 10.1016/J.INS.2025.122217.
[3]
P. Lacharme and K. Thiry-Atighehchi, “Cryptanalysis of cancelable biometrics vault,” J. Inf. Secur. Appl., vol. 86, p. 103883, 2024, doi: 10.1016/J.JISA.2024.103883.
[4]
K. Atighehchi, “A precise non-asymptotic complexity analysis of parallel hash functions without tree topology constraints,” J. Parallel Distributed Comput., vol. 137, pp. 246–251, 2020, doi: 10.1016/J.JPDC.2019.10.002.
[5]
L. Ghammam, K. Karabina, P. Lacharme, and K. Atighehchi, “A cryptanalysis of two cancelable biometric schemes based on index-of-max hashing,” IEEE Trans. Inf. Forensics Secur., vol. 15, pp. 2869–2880, 2020, doi: 10.1109/TIFS.2020.2977533.
[6]
K. Atighehchi, L. Ghammam, M. Barbier, and C. Rosenberger, “GREYC-hashing: Combining biometrics and secret for enhancing the security of protected templates,” Future Gener. Comput. Syst., vol. 101, pp. 819–830, 2019, doi: 10.1016/J.FUTURE.2019.07.022.
[7]
K. Atighehchi, S. Ballet, A. Bonnecaze, and R. Rolland, “Arithmetic in finite fields based on the chudnovsky-chudnovsky multiplication algorithm,” Math. Comput., vol. 86, no. 308, pp. 2975–3000, 2017, doi: 10.1090/MCOM/3230.
[8]
K. Atighehchi and R. Rolland, “Optimization of tree modes for parallel hash functions: A case study,” IEEE Trans. Computers, vol. 66, no. 9, pp. 1585–1598, 2017, doi: 10.1109/TC.2017.2693185.
[9]
K. Atighehchi and A. Bonnecaze, “Asymptotic analysis of plausible tree hash modes for SHA-3,” IACR Trans. Symmetric Cryptol., vol. 2017, no. 4, pp. 212–239, 2017, doi: 10.13154/TOSC.V2017.I4.212-239.
[10]
K. Atighehchi, A. Bonnecaze, and G. Risterucci, “New models for efficient authenticated dictionaries,” Comput. Secur., vol. 53, pp. 203–214, 2015, doi: 10.1016/J.COSE.2015.04.010.
Conference papers
[1]
D. Chagnon, G. Chalhoub, and K. Thiry-Atighehchi, “Timing vs covert detours: A benchmarking study in path validation,” Thessaloniki, Greece: Poster, ACM Symposium on Applied Computing (SAC 2026), NET track, 2026. Available: https://www.sigapp.org/sac/sac2026/file2026/SAC26-FinalProgramv1.2.pdf
[2]
B. Bazin, C. Bertolissi, A. Bonnecaze, and K. Thiry-Atighehchi, “Breaking anonymity in attribute-based access control encryption,” in Proceedings of the 41st ACM/SIGAPP symposium on applied computing (SAC 2026 security track), 2026.
[3]
A. Durbet, P.-M. Grollemund, P. Lafourcade, and K. Thiry-Atighehchi, “Defining security limits in biometrics,” in Proceedings of the fifteenth ACM conference on data and application security and privacy, CODASPY 2025, Pittsburgh, PA, USA, June 4-6, 2025, J. Joshi, J. Vaidya, and H. Schulmann, Eds., ACM, 2025, pp. 155–166. doi: 10.1145/3714393.3726514.
[4]
D. Chagnon, A. Durbet, P.-M. Grollemund, and K. Thiry-Atighehchi, “Exploit the leak: Understanding risks in biometric matchers,” in Proceedings of the 11th international conference on information systems security and privacy, ICISSP 2025 - volume 2, Porto, Portugal, February 20-22, 2025, R. D. Pietro, K. Renaud, and P. Mori, Eds., SCITEPRESS, 2025, pp. 353–362. doi: 10.5220/0013250600003899.
[5]
D. Chagnon, K. Thiry-Atighehchi, and G. Chalhoub, “Network path validation for packets delivery.” RESSI 2023 – Rendez-vous de la Recherche et de l’Enseignement de la Sécurité des Systèmes d’Information, Neuvy-sur-Barangeon, France, May 2023. Available: https://ressi2023.sciencesconf.org/470927
[6]
P.-M. Grollemund, C. Jacq, and K. Thiry-Atighehchi, “Enseignement de la sécurité des données individuelles en STID.” RESSI 2022 – Rendez-vous de la Recherche et de l’Enseignement de la Sécurité des Systèmes d’Information, 2022. Available: https://ressi2022.sciencesconf.org/390647/RESSI_papier_enseignement.pdf
[7]
A. Durbet, P.-M. Grollemund, P. Lafourcade, and K. Thiry-Atighehchi, “Near-collisions and their impact on biometric security,” in Proceedings of the 19th international conference on security and cryptography, SECRYPT 2022, Lisbon, Portugal, July 11-13, 2022, S. D. C. di Vimercati and P. Samarati, Eds., SCITEPRESS, 2022, pp. 382–389. doi: 10.5220/0011279200003283.
[8]
A. Durbet, P.-M. Grollemund, P. Lafourcade, D. Migdal, and K. Thiry-Atighehchi, “Authentication attacks on projection-based cancelable biometric schemes,” in Proceedings of the 19th international conference on security and cryptography, SECRYPT 2022, Lisbon, Portugal, July 11-13, 2022, S. D. C. di Vimercati and P. Samarati, Eds., SCITEPRESS, 2022, pp. 568–573. doi: 10.5220/0011277100003283.
[9]
P.-M. Grollemund, P. Lafourcade, K. Thiry-Atighehchi, and A. Tichit, “Proof of behavior (short paper),” in 2nd international conference on blockchain economics, security and protocols, tokenomics 2020, Toulouse, France, October 26-27, 2020, E. Anceaume, C. Bisière, M. Bouvard, Q. Bramas, and C. Casamatta, Eds., in OASIcs, vol. 82. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020, pp. 11:1–11:6. doi: 10.4230/OASICS.TOKENOMICS.2020.11.
[10]
K. Atighehchi and M. Barbier, “Signature renewal for low entropy data,” in 17th IEEE international conference on trust, security and privacy in computing and communications / 12th IEEE international conference on big data science and engineering, TrustCom/BigDataSE 2018, New York, NY, USA, August 1-3, 2018, IEEE, 2018, pp. 873–884. doi: 10.1109/TRUSTCOM/BIGDATASE.2018.00126.
[11]
K. Atighehchi, “On the incremental digital signatures,” in 17th IEEE international conference on trust, security and privacy in computing and communications / 12th IEEE international conference on big data science and engineering, TrustCom/BigDataSE 2018, New York, NY, USA, August 1-3, 2018, IEEE, 2018, pp. 1605–1609. doi: 10.1109/TRUSTCOM/BIGDATASE.2018.00234.
[12]
K. Atighehchi and A. Bonnecaze, “Asymptotic analysis of plausible tree hash modes for SHA-3,” IACR Fast Software Encryption, vol. 2017, no. 4, pp. 212–239, 2017, doi: 10.13154/TOSC.V2017.I4.212-239.
[13]
K. Atighehchi, A. Bonnecaze, and T. Muntean, “Authenticated dictionary based on frequency,” in ICT systems security and privacy protection - 29th IFIP TC 11 international conference, SEC 2014, Marrakech, Morocco, June 2-4, 2014. proceedings, N. Cuppens-Boulahia, F. Cuppens, S. Jajodia, A. A. E. Kalam, and T. Sans, Eds., in IFIP advances in information and communication technology, vol. 428. Springer, 2014, pp. 293–306. doi: 10.1007/978-3-642-55415-5\_24.
[14]
K. Atighehchi and T. Muntean, “Towards fully incremental cryptographic schemes,” in 8th ACM symposium on information, computer and communications security, ASIA CCS ’13, Hangzhou, China - May 08 - 10, 2013, K. Chen, Q. Xie, W. Qiu, N. Li, and W.-G. Tzeng, Eds., ACM, 2013, pp. 505–510. doi: 10.1145/2484313.2484380.
[15]
K. Atighehchi and T. Muntean, “Generic parallel cryptography for hashing schemes,” in IEEE 12th international symposium on parallel and distributed computing, ISPDC 2013, Bucharest, Romania, June 27-30, 2013, N. Tapus, D. Grigoras, R. Potolea, and F. Pop, Eds., IEEE, 2013, pp. 201–208. doi: 10.1109/ISPDC.2013.34.
[16]
K. Atighehchi, T. Muntean, S. Parlanti, R. Rolland, and L. Vallet, “A cryptographic keys transfer protocol for secure communicating systems,” in 12th international symposium on symbolic and numeric algorithms for scientific computing, SYNASC 2010, Timisoara, Romania, 23-26 September 2010, T. Ida, V. Negru, T. Jebelean, D. Petcu, S. M. Watt, and D. Zaharie, Eds., IEEE Computer Society, 2010, pp. 339–343. doi: 10.1109/SYNASC.2010.56.
Magazine articles
[1]
A. Bonnecaze and K. Thiry-Atighehchi, “Protéger et modifier les données : Le casse-tête blockchain,” La Recherche, no. 580, Jan. 2025, Available: https://www.larecherche.fr/prot%C3%A9ger-et-modifier-les-donn%C3%A9es-le-casse-t%C3%AAte-blockchain
[2]
A. Bonnecaze and K. Thiry-Atighehchi, “L’horodatage sécurisé à l’ère numérique,” La Recherche, no. 573, Apr. 2023, Available: https://www.larecherche.fr/informatique-blockchain/lhorodatage-s%C3%A9curis%C3%A9-%C3%A0-l%C3%A8re-num%C3%A9rique
Doctoral supervision
Ongoing supervision
- Mehdi Chourib (since September 2024) - Network Covert Channels
- Baptiste Bazin (since October 2025) - Access Control Encryption
- Dorine Chagnon (2022-2025) - Network Path Validation
Past supervision
- Axel Durbet (2021-2024) - Privacy-preserving Biometric Authentication (ANR PRIVABIO)