DAGS: Reloaded Revisiting Dyadic Key Encapsulation

Published in *Code-Based Cryptography Workshop 2019*, 2018

In this paper, we revisit key aspects of the DAGS Key Encapsulation Mechanism, originally submitted to the NIST post-quantum standardization process.

Key contributions:

  • Refactored the key generation, encapsulation, and decapsulation algorithms to fit an alternative KEM framework
  • Proposed new parameter sets based on binary Goppa codes
  • Analyzed trade-offs between the variants, focusing on both efficiency and security