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Pregled bibliografske jedinice broj: 609697

Advanced Character Collage CAPTCHA


Martinović, Goran; Krpić, Zdravko
Advanced Character Collage CAPTCHA // Acta Polytechnica Hungarica, 9 (2012), 6; 137-151 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 609697 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Advanced Character Collage CAPTCHA

Autori
Martinović, Goran ; Krpić, Zdravko

Izvornik
Acta Polytechnica Hungarica (1785-8860) 9 (2012), 6; 137-151

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
CAPTCHA; recognition rate; security; web access control

Sažetak
Text based CAPTCHA systems are widely used as a security mechanism for web access control. Considering their broad use, many attacks are challenging them every day. Most of the attacks aimed at CAPTCHAs are based on the latest computer vision techniques, AI methods and OCRs, so it is imperative to enhance these methods even more. There are number of proposals for CAPTCHA security, but it is hard to achieve a good balance between CAPTCHA practicality and its security. Advanced Character Collage CAPTCHA is a highly random novel method which uses the strengths of unbroken CAPTCHAs along with the weaknesses of present ones, and relies on imperfection of computer vision techniques. The proposed CAPTCHA is generated through a series of unique creation steps, each of them implementing carefully analyzed features in order to increase human recognition rate, and at the same time, to reduce computer recognition rate. The degree of recognition within the proposed method is evaluated using several tests, while its readability by humans is tested through two surveys.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo



POVEZANOST RADA


Projekti:
165-0361621-2000 - Distribuirano računalno upravljanje u transportu i industrijskim pogonima (Hocenski, Željko, MZOS ) ( POIROT)
165-0362980-2002 - Postupci raspoređivanja u samoodrživim raspodijeljenim računalnim sustavima (Martinović, Goran, MZOS ) ( POIROT)

Ustanove:
Fakultet elektrotehnike, računarstva i informacijskih tehnologija Osijek

Profili:

Avatar Url Goran Martinović (autor)

Avatar Url Zdravko Krpić (autor)

Citiraj ovu publikaciju

Martinović, Goran; Krpić, Zdravko
Advanced Character Collage CAPTCHA // Acta Polytechnica Hungarica, 9 (2012), 6; 137-151 (međunarodna recenzija, članak, znanstveni)
Martinović, G. & Krpić, Z. (2012) Advanced Character Collage CAPTCHA. Acta Polytechnica Hungarica, 9 (6), 137-151.
@article{article, year = {2012}, pages = {137-151}, keywords = {CAPTCHA, recognition rate, security, web access control}, journal = {Acta Polytechnica Hungarica}, volume = {9}, number = {6}, issn = {1785-8860}, title = {Advanced Character Collage CAPTCHA}, keyword = {CAPTCHA, recognition rate, security, web access control} }
@article{article, year = {2012}, pages = {137-151}, keywords = {CAPTCHA, recognition rate, security, web access control}, journal = {Acta Polytechnica Hungarica}, volume = {9}, number = {6}, issn = {1785-8860}, title = {Advanced Character Collage CAPTCHA}, keyword = {CAPTCHA, recognition rate, security, web access control} }

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • Scopus





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