Human-computer cryptography: an attempt
CCS '96 Proceedings of the 3rd ACM conference on Computer and communications security
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
Visual Authentication and Identification
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Secure Human Identification Protocols
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Modulation and Information Hiding in Images
Proceedings of the First International Workshop on Information Hiding
Providing authentication to messages signed with a smart card in hostile environments
WOST'99 Proceedings of the USENIX Workshop on Smartcard Technology on USENIX Workshop on Smartcard Technology
Smart cards in hostile environments
WOEC'96 Proceedings of the 2nd conference on Proceedings of the Second USENIX Workshop on Electronic Commerce - Volume 2
CAPTCHA: using hard AI problems for security
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Sybil proof anonymous reputation management
Proceedings of the 4th international conference on Security and privacy in communication netowrks
Insecure real-world authentication protocols: or why phishing is so profitable
Proceedings of the 13th international conference on Security protocols
Visualizing your key for secure phone calls and language independence
Proceedings of the Seventh International Symposium on Visualization for Cyber Security
Explicit authentication response considered harmful
Proceedings of the 2013 workshop on New security paradigms workshop
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Users are often forced to trust potentially malicious terminals when trying to interact with a remote secure system. This paper presents an approach for ensuring the integrity and authenticity of messages sent through an untrusted terminal by a user to a remote trusted computing base and vice versa. The approach is both secure and easy to use. It leverages the difficulty computers have in addressing some artificial intelligence problems and therefore requires no complex computation on the part of the user. This paper describes the general form of the approach, analyzes its security and user-friendliness, and describes an example implementation based on rendering a 3-D scene.