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Gopinath, Mukul (2019) Dual image encryption using Modified Fisher-Yates and Cipher Stream Chaining. Masters thesis, Dublin, National College of Ireland.
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Abstract
Health-care and hospitals can cater their business in a whole new level if they adopt cloud to the fullest potential. The issue arises in terms of the privacy and security where the data accumulated should not be compromised at any point. The X-ray, reports are stored as images which needs to be secured and made meaningless with the help of encryption so that the data is not useful even if the access is compromised. Thus, the image encryption employed should be able to reconstruct the encrypted image and lossless. This research aims at implementing a dual layered approach with Fisher Yates and Cipher Stream Chaining methods to encrypt and secure the image. The experiment could achieve Net Pixel Change Ratio (NPCR) of 100%, entropy of 7.999 and Uniform Average Color Intensity (UACI) of 35.46% which have been evaluated to be close to an ideally encrypted image.
Keywords: NPCR (Net Pixel Change Rate), UACI (Unified Average Color Intensity), Entropy, Fisher Yates algorithm, Cipher Stream Chaining.
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | Q Science > QA Mathematics > Electronic computers. Computer science T Technology > T Technology (General) > Information Technology > Electronic computers. Computer science Q Science > QA Mathematics > Computer software T Technology > T Technology (General) > Information Technology > Computer software T Technology > T Technology (General) > Information Technology > Cloud computing |
| Divisions: | School of Computing > Master of Science in Cloud Computing |
| Depositing User: | Dan English |
| Date Deposited: | 09 Jun 2020 10:48 |
| Last Modified: | 09 Jun 2020 10:48 |
| URI: | https://norma.ncirl.ie/id/eprint/4251 |
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