Password typographical error resilience in honey encryption

Hoyul Choi, Jongmin Jeong, Simon S. Woo, Kyungtae Kang, Junbeom Hur

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Honey encryption (HE) is a novel password-based encryption scheme that is secure against brute-force attacks even if users’ passwords have min-entropy. However, in HE, decryption with an incorrect key produces fake messages that appear valid. Hence, password typographical errors may confuse even legitimate users. This has been one of the most challenging problems in HE. To tackle this challenge, we propose three types of protocols that enable legitimate users to detect password typographical errors in HE. We conducted a theoretical analysis and performed an IRB-approved user study with 150 participants to compare the performance of each scheme. We also analyzed the security of the proposed schemes against online and offline brute-force attacks. The results from the user study and theoretical analysis show that the proposed schemes can effectively solve the typographical error problem of HE, which can detect typographical errors with 99% accuracy.

Original languageEnglish
Article number101411
JournalComputers and Security
Volume87
DOIs
Publication statusPublished - 2019 Nov

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. 2016R1A2A2A05005402 and 2017R1C1B5076474). This work was also supported by an Institute for Information & Communications Technology Promotion (IITP) grant funded by the Korean government (MSIP) (No. 2017-0-00380, Development of next generation user authentication), and the ICT Consilience Creative program (IITP-2017-R0346-16-1007).

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. 2016R1A2A2A05005402 and 2017R1C1B5076474 ). This work was also supported by an Institute for Information & Communications Technology Promotion ( IITP ) grant funded by the Korean government (MSIP) (No. 2017-0-00380 , Development of next generation user authentication), and the ICT Consilience Creative program (IITP-2017-R0346-16-1007).

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • Brute-force resilience
  • Honey encryption
  • Password typographical error
  • Password-based encryption
  • Typographical error resilience

ASJC Scopus subject areas

  • General Computer Science
  • Law

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