A New Bi-Level Encoding and Decoding Scheme for Pixel Expansion Based Visual Cryptography
Mapping of image-based object textures to ASCII characters can be a new modification towards visual cryptography. Naor and Shamir proposed a new dimension of Information security as visual cryptography which is a secret sharing scheme among N number of participants with pixel expansion. Later on, ma...
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| Published in: | International journal of rough sets and data analysis Vol. 6; no. 1; pp. 18 - 42 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Pune
IGI Global
01.01.2019
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| Subjects: | |
| ISSN: | 2334-4598, 2334-4601 |
| Online Access: | Get full text |
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| Summary: | Mapping of image-based object textures to ASCII characters can be a new modification towards visual cryptography. Naor and Shamir proposed a new dimension of Information security as visual cryptography which is a secret sharing scheme among N number of participants with pixel expansion. Later on, many researchers extended the visual secret sharing scheme with no expansion of pixel regions in binary and color images. By stacking k shares the secret can be decoded using normal vision. In this paper the authors have proposed a modification towards visual cryptography by converting the message in the form of printable ASCII character-based numerical encoding patterns in a binary host image. The encoding of the message is represented as ASCII numeric and a texture of those numeric are arranged to form a binary host image. Then, N numbers of shares are built up but after stacking all the shares the decoding of the message is achieved by converting ASCII numeric to the secret. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 |
| ISSN: | 2334-4598 2334-4601 |
| DOI: | 10.4018/IJRSDA.2019010102 |