Three dimensional Montgomery ladder, differential point tripling on Montgomery curves and point quintupling on Weierstrass’ and Edwards curves

Srinivasa Rao Subramanya Rao*

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    10 Citations (Scopus)

    Abstract

    Elliptic Curve Cryptography is an important alternative to traditional public key schemes such as RSA. This paper presents (i) a simultaneous triple scalar multiplication algorithm to compute the x-coordinate of kP + lQ + uR on a Montgomery Curve Em defined over (image found)p which is about 15 to 22% faster than the straight forward method of doing the same. The algorithm, motivated by Bernstein’s paper on Differential Addition Chains, where the author proposes various 2-dimensional differential addition chains and asks for 3- dimensional versions to be constructed, can be generalized to other elliptic curve forms with differential addition formula, (ii) a formula for Differential point tripling on Montgomery Curves which is slightly better than computing 3P as 2P + P and relevant in the implementation of Montgomery’s PRAC and (iii) an improvement in Mishra and Dimitrov’s point Quintupling algorithm for Weierstrass’ curves and an efficient Quintupling algorithm for Edwards Curves.

    Original languageEnglish
    Title of host publicationProgress in Cryptology – AFRICACRYPT 2016 - 8th International Conference on Cryptology in Africa, Proceedings
    EditorsDavid Pointcheval, Tajjeeddine Rachidi, Abderrahmane Nitaj
    PublisherSpringer Verlag
    Pages84-106
    Number of pages23
    ISBN (Print)9783319315164
    DOIs
    Publication statusPublished - 2016
    Event8th International Conference on the Theory and Application of Cryptographic Techniques in Africa, AFRICACRYPT 2016 - Fes, Morocco
    Duration: 13 Apr 201615 Apr 2016

    Publication series

    NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
    Volume9646
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349

    Conference

    Conference8th International Conference on the Theory and Application of Cryptographic Techniques in Africa, AFRICACRYPT 2016
    Country/TerritoryMorocco
    CityFes
    Period13/04/1615/04/16

    Fingerprint

    Dive into the research topics of 'Three dimensional Montgomery ladder, differential point tripling on Montgomery curves and point quintupling on Weierstrass’ and Edwards curves'. Together they form a unique fingerprint.

    Cite this