Security analysis of a 2/3-rate double length compression function in the black-box model

Mridul Nandi, Wonil Lee, Kouichi Sakurai, Sangjin Lee

研究成果: ジャーナルへの寄稿Conference article

23 引用 (Scopus)


In this paper, we propose a 2/3-rate double length compression function and study its security in the black-box model. We prove that to get a collision attack for the compression function requires Ω(22n/3) queries, where π is the single length output size. Thus, it has better security than a most secure single length compression function. This construction is more efficient than the construction given in [8]. Also the three computations of underlying compression functions can be done in parallel. The proof idea uses a concept of computable message which can be helpful to study security of other constructions like [8], [14], [16] etc.

ジャーナルLecture Notes in Computer Science
出版物ステータス出版済み - 10 17 2005
イベント12th International Workshop on Fast Software Encryption. FSE 2005 - Paris, フランス
継続期間: 2 21 20052 23 2005


All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)