Type of Document	Thesis
Author	Patel, Mahesh Kumar
URN	etd-08282003-200024
Title	A Modernized Version Of Visual Cryptography
Degree	Master of Science
Department	Computer Science, Department of
Advisory Committee	Advisor Name Title Yvo Desmedt Committee Chair Lois Hawkes Committee Member Mike Burmester Committee Member
Keywords	Visual Cryptography Digital Projectors vs Over-Head Projectors
Date of Defense	2003-06-01
Availability	restricted
Abstract In this thesis we adapt the concept of visual cryptography to digital projectors as opposed to over-head projectors. Digital projectors are used to project the images from the computer monitor, whereas over-head projectors display the image from transparencies placed on them. The schemes developed in this thesis guarantee perfect secrecy and also provide the best possible contrast. By using two projectors, there is no need for any computational device or a complex approach to decrypt the message. Decryption is done by the human visual system and the laws of Physics.
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