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Paper 2015/1121
On the First Fall Degree of Summation Polynomials
Stavros Kousidis and Andreas Wiemers
Abstract
We improve on the first fall degree bound of polynomial systems that arise from a Weil descent along Semaev's summation polynomials.
Note: Timothy J. Hodges informed us about a mistake in Corollary 4.5 in the first version of the article. Our arguments do not hold in that generality. We have re-written the relevant part, the restricted statement is now Corollary 5.2 in the second version. The statement about the first fall degree of summation polynomials remains unchanged.
Metadata
- Available format(s)
- Publication info
- Preprint.
- Keywords
- discrete logarithm problemelliptic curve cryptosystem
- Contact author(s)
- st kousidis @ googlemail com
- History
- 2019-06-13: last of 2 revisions
- 2015-11-19: received
- See all versions
- Short URL
- https://ia.cr/2015/1121
- License
-
CC BY