Olembo, Maina ; Stockhardt, Simon ; Hülsing, Andreas ; Volkamer, Melanie
ed.: University, Plymouth (2013)
Developing and Testing a Visual Hash Scheme.
Conference or Workshop Item, Bibliographie
Abstract
Users find comparing long meaningless strings of alphanumeric characters difficult, yet they have to carry out this task when comparing cryptographic hash values for https certificates and PGP keys, or in the context of electronic voting. Visual hashes - where users compare images rather than strings - have been proposed as an alternative. With the visual hashes available in literature, however, people are unable to sufficiently distinguish more than 30 bits. Obviously, this does not provide adequate security against collision attacks. Our goal is to improve the situation: a visual hash scheme was developed, evaluated through pilot user studies and improved iteratively, leading to CLPS, which encodes 60 distinguishable bits using Colours, Patterns and Shapes. In the final user study, participants attained an average accuracy rate of 97% when comparing two visual hash images, with one placed above the other. CLPS was further tested in two follow-up studies, simulating https certificate validation and verifying in remote electronic voting. The results of this work and their implications for practical applications of visual hash schemes are discussed.
| Item Type: | Conference or Workshop Item |
|---|---|
| Erschienen: | 2013 |
| Editors: | University, Plymouth |
| Creators: | Olembo, Maina ; Stockhardt, Simon ; Hülsing, Andreas ; Volkamer, Melanie |
| Type of entry: | Bibliographie |
| Title: | Developing and Testing a Visual Hash Scheme |
| Language: | English |
| Date: | 2013 |
| Book Title: | European Information Security Multi-Conference (EISMC 2013) |
| Corresponding Links: | |
| Abstract: | Users find comparing long meaningless strings of alphanumeric characters difficult, yet they have to carry out this task when comparing cryptographic hash values for https certificates and PGP keys, or in the context of electronic voting. Visual hashes - where users compare images rather than strings - have been proposed as an alternative. With the visual hashes available in literature, however, people are unable to sufficiently distinguish more than 30 bits. Obviously, this does not provide adequate security against collision attacks. Our goal is to improve the situation: a visual hash scheme was developed, evaluated through pilot user studies and improved iteratively, leading to CLPS, which encodes 60 distinguishable bits using Colours, Patterns and Shapes. In the final user study, participants attained an average accuracy rate of 97% when comparing two visual hash images, with one placed above the other. CLPS was further tested in two follow-up studies, simulating https certificate validation and verifying in remote electronic voting. The results of this work and their implications for practical applications of visual hash schemes are discussed. |
| Uncontrolled Keywords: | Security, Usability and Society;Secure Data |
| Identification Number: | TUD-CS-2013-0077 |
| Divisions: | 20 Department of Computer Science 20 Department of Computer Science > Theoretical Computer Science - Cryptography and Computer Algebra 20 Department of Computer Science > SECUSO - Security, Usability and Society Profile Areas Profile Areas > Cybersecurity (CYSEC) LOEWE LOEWE > LOEWE-Zentren LOEWE > LOEWE-Zentren > CASED – Center for Advanced Security Research Darmstadt |
| Date Deposited: | 28 Jul 2016 18:35 |
| Last Modified: | 25 Feb 2022 11:01 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Send an inquiry |
Options (only for editors)
 |
Show editorial Details |
Drucken
Impressum