Paper 2017/1143
Faster isogeny-based compressed key agreement
Gustavo H. M. Zanon and Marcos A. Simplicio Jr. and Geovandro C. C. F. Pereira and Javad Doliskani and Paulo S. L. M. Barreto
Abstract
Supersingular isogeny-based cryptography is one of the more recent families of post-quantum proposals. An interesting feature is the comparatively low bandwidth occupation in key agreement protocols, which stems from the possibility of key compression. However, compression and decompression introduce a significant overhead to the overall processing cost despite recent progress. In this paper we address the main processing bottlenecks involved in key compression and decompression, and suggest substantial improvements for each of them. Some of our techniques may have an independent interest for other, more conventional areas of elliptic curve cryptography as well.
Metadata
- Available format(s)
- Category
- Public-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- isogeny-based cryptography
- Contact author(s)
- pbarreto @ uw edu
- History
- 2018-11-05: last of 5 revisions
- 2017-11-27: received
- See all versions
- Short URL
- https://ia.cr/2017/1143
- License
-
CC BY