Enhancement of Security in Visual Cryptography System using Genetic Algorithm
نویسنده
چکیده
Visual Cryptography (VC) is a special type of encryption technique where an image or document is encrypted by breaking it down into shares. These shares are then printed on transparencies. Decryption is done by superimposing the shares. Thus one can visually decode the secret image without computation. However, this property makes VC insecure as a third party can easily retrieve the secret information if he obtains the transparencies. VC can be made more secure by encrypting the shares using Genetic Algorithm. Overlapping these encrypted shares reveals no information about the secret image, increasing the security of the VC scheme.
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