Indistinguishability under adaptive chosen-ciphertext attack secure double-NTRU-based key encapsulation mechanism

Seyhan K., Akleylek S.

PEERJ COMPUTER SCIENCE, cilt.9, 2023 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 9
  • Basım Tarihi: 2023
  • Doi Numarası: 10.7717/peerj-cs.1391
  • Dergi Adı: PEERJ COMPUTER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, Directory of Open Access Journals
  • Anahtar Kelimeler: Post-quantum cryptography, Key encapsulation mechanism, NTRU, Lattice-based cryptography
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

In this article, we propose a double-NTRU (D-NTRU)-based key encapsulation mechanism (KEM) for the key agreement requirement of the post-quantum world. The proposed KEM is obtained by combining one-way D-NTRU encryption and Dent's KEM design method. The main contribution of this article is to construct a D-NTRU-based KEM that provides indistinguishability under adaptive chosen-ciphertext attack (IND-CCA2) security. The IND-CCA2 analysis and primal/dual attack resistance of the proposed D-NTRU KEM are examined in detail. A comparison with similar protocols is provided regarding parameters, public/secret keys, and ciphertext sizes. The proposed scheme presents arithmetic simplicity and IND-CCA2 security that does not require any padding mechanism.