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CAPTCHA: Using Hard AI Problems for Security

20031,448 citationsBook Chapterbronze Open Access

Authors

Luis von Ahn · Carnegie Mellon University

Manuel Blum · Carnegie Mellon University

Nicholas Hopper · Carnegie Mellon University

Topics & Keywords

User Authentication and Security Systems Spam and Phishing Detection Privacy, Security, and Data Protection

Publication Details

Published in: Lecture notes in computer science

DOI: 10.1007/3-540-39200-9_18

Field-Weighted Citation Impact: 32.91

CAPTCHA: Using Hard AI Problems for Security | Researchclopedia