Visual Cryptography Based on an Interferometric Encryption Technique
This paper presents a new method for a visual cryptography scheme that uses phase masks and an interferometer. To encrypt a binary image, we divided it into an arbitrary number of slides and encrypted them using an XOR process with a random key or keys. The phase mask for each encrypted image was fa...
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Published in | ETRI journal Vol. 24; no. 5; pp. 373 - 380 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Taejon
Electronics and Telecommunications Research Institute
01.10.2002
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Subjects | |
Online Access | Get full text |
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Summary: | This paper presents a new method for a visual cryptography scheme that uses phase masks and an interferometer. To encrypt a binary image, we divided it into an arbitrary number of slides and encrypted them using an XOR process with a random key or keys. The phase mask for each encrypted image was fabricated under the proposed phase‐assignment rule. For decryption, phase masks were placed on any path of the Mach‐Zehnder interferometer. Through optical experiments, we confirmed that a secret binary image that was sliced could be recovered by the proposed method. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1225-6463 2233-7326 |
DOI: | 10.4218/etrij.02.0102.0505 |