Cryptology ePrint Archive: Report 2007/302

Compression Functions Suitable for the Multi-Property-Preserving Transform

Hidenori Kuwakado and Masakatu Morii

Abstract: Since Bellare and Ristenpart showed a multi-property preserving domain extension transform, the problem of the construction for multi-property hash functions has been reduced to that of the construction for multi-property compression functions. However, the Davies-Meyer compression function that is widely used for standard hash functions is not a multi-property compression function. That is, in the ideal cipher model, the Davies-Meyer compression function is collision resistant, but it is not indifferentiable from a random oracle. In this paper, we show that the compression function proposed by Lai and Massey is a multi-property compression function. In addition, we show that the simplified version of the Lai-Massey compression function is also a multi-property compression function. The use of these compression functions enables us to construct multi-property hash functions by the multi-property preserving domain extension transform.

Category / Keywords: foundations / hash functions

Date: received 3 Aug 2007

Contact author: kuwakado at kobe-u ac jp

Available format(s): PDF | BibTeX Citation

Version: 20070807:155025 (All versions of this report)

Discussion forum: Show discussion | Start new discussion

[ Cryptology ePrint archive ]