Welcome to the resource topic for 2007/271
Title:
Hash Functions in the Dedicated-Key Setting: Design Choices and MPP Transforms
Authors: Mihir Bellare, Thomas Ristenpart
Abstract:In the dedicated-key setting, one starts with a compression function f:{0,1}^k x {0,1}^{n+d} → {0,1}^n and builds a family of hash functions H^f:K x M → {0,1}^n indexed by a key space K. This is different from the more traditional design approach used to build hash functions such as MD5 or SHA-1, in which compression functions and hash functions do not have dedicated key inputs. We explore the benefits and drawbacks of building hash functions in the dedicated-key setting (as compared to the more traditional approach), highlighting several unique features of the former. Should one choose to build hash functions in the dedicated-key setting, we suggest utilizing multi-property-preserving (MPP) domain extension transforms. We analyze seven existing dedicated-key transforms with regard to the MPP goal and propose two simple new MPP transforms.
ePrint: https://eprint.iacr.org/2007/271
See all topics related to this paper.
Feel free to post resources that are related to this paper below.
Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.
For more information, see the rules for Resource Topics .