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Paper 2021/804

A Note on ``Reduction Modulo $2^{448}-2^{224}-1$''

Timothy Shelton

Abstract

Nath and Sarkar propose algorithms to improve the efficiency of Diffie-Hellman key agreement using Curve448. In this note an error in the proof of correctness of the subtraction algorithm is described. An alternative argument is offered to fix this error without changing the algorithm or statement of correctness.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint. MINOR revision.
Keywords
Curve448Goldilocks primemodulo reductionelliptic curve cryptographyDiffie-Hellman key agreement
Contact author(s)
jshelton140 @ googlemail com
History
2021-06-16: received
Short URL
https://ia.cr/2021/804
License
Creative Commons Attribution
CC BY
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