On the Design Strategies of Diffusion Layers and Key Schedule in Lightweight Block Ciphers

KURT PEHLİVANOĞLU M., Akleylek S., SAKALLI M. T., DURU N.

2017 International Conference on Computer Science and Engineering (UBMK), Antalya, Türkiye, 5 - 08 Ekim 2017, ss.456-461 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/ubmk.2017.8093436
  • Basıldığı Şehir: Antalya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.456-461
  • Anahtar Kelimeler: lightweight block cipher, permutation layer, diffusion matrices, strict avalanche criterion, SAC test
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

In recent years, lightweight cryptography has become essential especially for the resource-constrained devices to ensure data protection and security. The selection of suitable cryptographic algorithm which is directly linked to requirements of the system will have dynamically effect on following such metrics like performance of the device, hardware resource cost, the area, speed, efficiency, computation latency, communication bandwidth. This paper aims to provide a comprehensive survey on the lightweight block ciphers that were given in the literature and throw a light on the future research directions. Then, the focus is given to the diffusion layers in view of construction methods and efficiency. A new metric based on the order of the matrix to measure the security of diffusion layer consisting MDS matrix over a finite field extension is proposed and related experimental results are given. Key schedule of the lightweight block ciphers is analyzed.