DAGS: Key Encapsulation Using Dyadic GS Codes

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Journal of Mathematical Cryptology

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Banegas, G.; Barreto, Paulo; Boidje, B.O.; Cayrel, P.-L.; Dione, G.N.; Gaj, K.; Gueye, C.T.; Haeussler, R.; Klamti, J.B.; N'Diaye, O.; Nguyen, D.T.; Persichetti, E.; Ricardini, J.E. Show More Hide
code-based cryptography; key exchange; Post-quantum cryptography
article description
Code-based cryptography is one of the main areas of interest for NIST's Post-Quantum Cryptography Standardization call. In this paper, we introduce DAGS, a Key Encapsulation Mechanism (KEM) based on quasi-dyadic generalized Srivastava codes. The scheme is proved to be IND-CCA secure in both random oracle model and quantum random oracle model. We believe that DAGS will offer competitive performance, especially when compared with other existing code-based schemes, and represent a valid candidate for post-quantum standardization. © 2018 Walter de Gruyter GmbH, Berlin/Boston.