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Research on the Sec...
Research on the Security of Visual Reasoning CAPTCHA
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- Gao, Yipeng (författare)
- Xidian Univ, Peoples R China
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- Gao, Haichang (författare)
- Xidian Univ, Peoples R China
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- Luo, Sainan (författare)
- Xidian Univ, Peoples R China
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- Zi, Yang (författare)
- Xidian Univ, Peoples R China
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- Zhang, Shudong (författare)
- Xidian Univ, Peoples R China
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- Mao, Wenjie (författare)
- Xidian Univ, Peoples R China
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- Wang, Ping (författare)
- Xidian Univ, Peoples R China
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- Shen, Yulong (författare)
- Xidian Univ, Peoples R China
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- Yan, Jianxin (författare)
- Linköpings universitet,Databas och informationsteknik,Tekniska fakulteten
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(creator_code:org_t)
- USENIX ASSOC, 2021
- 2021
- Engelska.
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Ingår i: PROCEEDINGS OF THE 30TH USENIX SECURITY SYMPOSIUM. - : USENIX ASSOC. - 9781939133243 ; , s. 3291-3308
- Relaterad länk:
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https://www.usenix.o...
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https://urn.kb.se/re...
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Abstract
Ämnesord
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- CAPTCHA is an effective mechanism for protecting computers from malicious bots. With the development of deep learning techniques, current mainstream text-based CAPTCHAs have been proven to be insecure. Therefore, a major effort has been directed toward developing image-based CAPTCHAs, and image-based visual reasoning is emerging as a new direction of such development. Recently, Tencent deployed the Visual Turing Test (VTT) CAPTCHA. This appears to have been the first application of a visual reasoning scheme. Subsequently, other CAPTCHA service providers (Geetest, NetEase, Dingxiang, etc.) have proposed their own visual reasoning schemes to defend against bots. It is, therefore, natural to ask a fundamental question: are visual reasoning CAPTCHAs as secure as their designers expect? This paper presents the first attempt to solve visual reasoning CAPTCHAs. We implemented a holistic attack and a modular attack, which achieved overall success rates of 67.3% and 88.0% on VTT CAPTCHA, respectively. The results show that visual reasoning CAPTCHAs are not as secure as anticipated; this latest effort to use novel, hard AI problems for CAPTCHAs has not yet succeeded. Based on the lessons we learned from our attacks, we also offer some guidelines for designing visual CAPTCHAs with better security.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap -- Medieteknik (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Media and Communication Technology (hsv//eng)
Publikations- och innehållstyp
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- kon (ämneskategori)
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