Adaptive halftoned visual cryptography with improved quality and security
| العنوان: | Adaptive halftoned visual cryptography with improved quality and security |
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| المؤلفون: | R. Sathishkumar, Srividhya Sridhar, Gnanou Florence Sudha |
| المصدر: | Multimedia Tools and Applications. 76:815-834 |
| بيانات النشر: | Springer Science and Business Media LLC, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Pixel, Computer Networks and Communications, business.industry, Computer science, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, 020207 software engineering, Cryptography, 02 engineering and technology, Secret sharing, Visual cryptography, Hardware and Architecture, Human visual system model, 0202 electrical engineering, electronic engineering, information engineering, Media Technology, Key (cryptography), 020201 artificial intelligence & image processing, Computer vision, Artificial intelligence, business, Software, Decoding methods |
| الوصف: | Visual Cryptography Scheme (VCS) is a cryptographic technique which can hide image based secrets. Even though VCS has the major advantage that the decoding can be done with the help of Human Visual System (HVS), yet it does not provide sufficient reconstruction quality. Hence, Two in One Image Secret Sharing Scheme (TiOISSS) is used which provides two decoding phases. However, the existing TiOISSS method has several limitations. In this work, a Modified TiOISSS is proposed in which an adaptive threshold is used for halftoning, which changes depending on the nature of the pixels present in image. By this, the quality of reconstructed secret image is improved in the first decoding stage compared to the existing scheme. In addition, the security is also enhanced by pixel and bit level permutation with a 64 bit key and embedding the key in Gray VCS shadows. To verify the authenticity of the image, a secret message is also embedded in the shadows. Security analysis shows that the Modified TiOISSS is robust to Brute Force and Man-in-Middle attacks. |
| تدمد: | 1573-7721 1380-7501 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6cd697ce6ffebc06a8a08925c34995f0 https://doi.org/10.1007/s11042-015-3066-7 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........6cd697ce6ffebc06a8a08925c34995f0 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15737721 13807501 |
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