New Distinguishers Based on Random Mappings against Stream Ciphers

Turan M. S., Calik C., Saran N. B., DOĞANAKSOY A.

5th International Conference on Sequences and Their Applications (SETA 2008), Kentucky, Amerika Birleşik Devletleri, 14 - 18 Eylül 2008, cilt.5203, ss.30-31 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 5203
  • Basıldığı Şehir: Kentucky
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.30-31
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Statistical randomness testing plays an important role in security analysis of cryptosystems. In this study, we aim to propose a new framework of randomness testing based on random mappings. Considering the probability distributions of coverage and P-lengths, we present three new distinguishers; (i) coverage test, (ii) p-test and (iii) DP-coverage test and applied them on Phase III Candidates of eSTREAM project. We experimentally observed some statistical weaknesses of Po-maranch using the coverage test.