System, method, and apparatus for visual authentication

Details System, method, and apparatus for visual authentication System, method, and apparatus for visual authentication

2006-06-20

2006-06-20

Song, Hosuk (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

C713S168000, C713S179000, C726S027000, C726S028000, C726S029000, C235S462010, C235S462130, C235S462280, C235S462330, C380S262000

Reexamination Certificate

active

07065645

ABSTRACT:
A visual tag having an imprinted image, a processor for calculating a response string corresponding to the content of the imprinted image and a challenge string, and a changeable screen to display the response string in machine-readable symbols. An authentication device reads the displayed symbols, and authenticates the displayed contents corresponding to the challenge string. The challenge string is generated either according to a random generator within the authentication device, or according to a real-time clock. A plurality of tags or objects can be authenticated and spotted within an image. The tag can also authenticate inputted messages and credentials.

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