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

  • Cilt numarası: 5203
  • Basıldığı Şehir: Kentucky
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.30-31


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.