Keyur Parmar

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In this paper we have proposed digital watermarking scheme for halftone images based on visual cryptography scheme. The scheme does not embed the watermark directly on the halftone image instead watermark will be divided into the parts called as shares. The scheme not only protects the watermark but also provides an effective copyright protection scheme. At(More)
Threshold secret sharing schemes do not prevent any malicious behavior of the dealer or shareholders and so we need verifiable secret sharing, to detect and identify the cheaters, to achieve fair reconstruction of a secret. The problem of verifiable secret sharing is to verify the shares distributed by the dealer. A novel approach for verifiable secret(More)
The objectives of concealed data aggregation are to provide end-to-end privacy and en route aggregation of reverse multicast traffic in wireless sensor networks. Privacy homomorphism has been used for realizing these objectives together. Although privacy homomorphism achieves the conflicting objectives, such as privacy and data aggregation, it negatively(More)
RATIONALE Amiodarone is reported to cause hepato and pulmonary toxicity in humans, which has been envisaged to be due to formation of its reactive metabolites, essentially based on its structural similarity to benzbromarone, a drug withdrawn from the market due to reasons of similar hepatotoxicity. Therefore, the purpose of this study was to detect(More)
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