Post-Quantum Secure Remote Password Protocol from RLWE Problem

Xinwei Gao, Jintai Ding, Jiqiang Liu*, Lin Li

*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

Secure Remote Password (SRP) protocol is an augmented Password-based Authenticated Key Exchange (PAKE) protocol based on discrete logarithm problem (DLP) with various attractive security features. Compared with basic PAKE protocols, SRP does not require server to store user’s password and user does not send password to server to authenticate. These features are desirable for secure client-server applications. SRP has gained extensive real-world deployment, including Apple iCloud, 1Password etc. However, with the advent of quantum computer and Shor’s algorithm, classic DLP-based public key cryptography algorithms are no longer secure, including SRP. Motivated by importance of SRP and threat from quantum attacks, we propose a RLWE-based SRP protocol (RLWE-SRP) which inherit advantages from SRP and elegant design from RLWE key exchange. We also present parameter choice and efficient portable C++ implementation of RLWE-SRP. Implementation of our 209-bit secure RLWE-SRP is more than 3x faster than 112-bit secure original SRP protocol, 5.5x faster than 80-bit secure J-PAKE and 14x faster than two 184-bit secure RLWE-based PAKE protocols with more desired properties.

Original languageEnglish
Title of host publicationInformation Security and Cryptology - 13th International Conference, Inscrypt 2017, Revised Selected Papers
EditorsXiaofeng Chen, Moti Yung, Dongdai Lin
PublisherSpringer Verlag
Pages99-116
Number of pages18
ISBN (Print)9783319751597
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event13th International Conference on Information Security and Cryptology, Inscrypt 2017 - Xi'an, China
Duration: 3 Nov 20175 Nov 2017

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10726 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference13th International Conference on Information Security and Cryptology, Inscrypt 2017
Country/TerritoryChina
CityXi'an
Period3/11/175/11/17

Keywords

  • Implementation
  • PAKE
  • Post-quantum
  • Protocol
  • RLWE
  • SRP

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