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, United States Of America, 14 - 18 September 2008, vol.5203, pp.30-31 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 5203
  • City: Kentucky
  • Country: United States Of America
  • Page Numbers: pp.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.