Mitigating the untrusted terminal problem using conditional signatures

István Zsolt Berta, L. Buttyán, István Vajda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Citations (Scopus)

Abstract

We study the problem of how a user at an untrusted terminal can generate digital signatures with the help of a smart card. This problem may arise in many practical applications; an example would be a user generating an electronic check at a merchant's terminal in a shop. The danger is that the terminal can obtain a signature from the card on an arbitrarily chosen document, that is different from the one displayed on the screen and confirmed by the user. We propose a solution to this problem which is based on a new concept called conditional signature. This leads to a new paradigm where digital signatures are not considered as non-repudiable proofs, at least until a short deadline.

Original languageEnglish
Title of host publicationInternational Conference on Information Technology: Coding Computing, ITCC
EditorsP.K. Srimani, A. Abraham, M. Cannataro, J. Domingo-Ferrer, R. Hashemi
Pages12-16
Number of pages5
Volume1
DOIs
Publication statusPublished - 2004
EventInternational Conference on Information Technology: Coding Computing, ITCC 2004 - Las Vegas, NV, United States
Duration: Apr 5 2004Apr 7 2004

Other

OtherInternational Conference on Information Technology: Coding Computing, ITCC 2004
CountryUnited States
CityLas Vegas, NV
Period4/5/044/7/04

Fingerprint

Electronic document identification systems
Smart cards

Keywords

  • Conditional signature
  • Electronic signature
  • Message authentication
  • Smart card
  • Untrusted terminal

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Berta, I. Z., Buttyán, L., & Vajda, I. (2004). Mitigating the untrusted terminal problem using conditional signatures. In P. K. Srimani, A. Abraham, M. Cannataro, J. Domingo-Ferrer, & R. Hashemi (Eds.), International Conference on Information Technology: Coding Computing, ITCC (Vol. 1, pp. 12-16) https://doi.org/10.1109/ITCC.2004.1286418

Mitigating the untrusted terminal problem using conditional signatures. / Berta, István Zsolt; Buttyán, L.; Vajda, István.

International Conference on Information Technology: Coding Computing, ITCC. ed. / P.K. Srimani; A. Abraham; M. Cannataro; J. Domingo-Ferrer; R. Hashemi. Vol. 1 2004. p. 12-16.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Berta, IZ, Buttyán, L & Vajda, I 2004, Mitigating the untrusted terminal problem using conditional signatures. in PK Srimani, A Abraham, M Cannataro, J Domingo-Ferrer & R Hashemi (eds), International Conference on Information Technology: Coding Computing, ITCC. vol. 1, pp. 12-16, International Conference on Information Technology: Coding Computing, ITCC 2004, Las Vegas, NV, United States, 4/5/04. https://doi.org/10.1109/ITCC.2004.1286418
Berta IZ, Buttyán L, Vajda I. Mitigating the untrusted terminal problem using conditional signatures. In Srimani PK, Abraham A, Cannataro M, Domingo-Ferrer J, Hashemi R, editors, International Conference on Information Technology: Coding Computing, ITCC. Vol. 1. 2004. p. 12-16 https://doi.org/10.1109/ITCC.2004.1286418
Berta, István Zsolt ; Buttyán, L. ; Vajda, István. / Mitigating the untrusted terminal problem using conditional signatures. International Conference on Information Technology: Coding Computing, ITCC. editor / P.K. Srimani ; A. Abraham ; M. Cannataro ; J. Domingo-Ferrer ; R. Hashemi. Vol. 1 2004. pp. 12-16
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