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Paper 2017/553
Further Analysis of a Proposed Hash-Based Signature Standard
Scott Fluhrer
Abstract
We analyze the concrete security of a hash-based signature scheme described in the most recent Internet Draft by McGrew, Fluhrer and Curcio. We perform this analysis in the random-oracle model, where the Merkle-Damgård hash compression function is models as the random oracle. We show that, even with a large number of different keys the attacker can choose from, and a huge computational budget, the attacker succeeds in creating a forgery with negligible probability ($< 2^{-129}$).
Metadata
- Available format(s)
- Category
- Public-key cryptography
- Publication info
- Preprint. MINOR revision.
- Contact author(s)
- sfluhrer @ cisco com
- History
- 2017-06-08: received
- Short URL
- https://ia.cr/2017/553
- License
-
CC BY