“A Survey on: A Modified Paillier Cryptosystem-Based Image Scaling and Cropping Scheme”

Computer Engineering

With the arrival of the cloud computing paradigm and therefore the fast increasing the quantity of on-line services, the web stores not only data for sharing, but also an oversized quantity of private information demanding restricted access and privacy protection. Secure management of private information hold on on-line is an progressively necessary issue, that demands a balance between information confidentiality and handiness. Technologies which will change secure on-line information management square measure attending to be critically necessary for cloud computing to succeed in its full potential. Cloud computing is a rising paradigm giving firms unlimited information storage and computation at enticing prices. It’s a cheap model as a result of it doesn't need preparation and maintenance of any dedicated IT infrastructure. Despite its advantages, it introduces new challenges for shielding the confidentiality of the info. Sensitive information like medical records, business or governmental information cannot be holding on unencrypted on the cloud. Firms would like new mechanisms to regulate access to the outsourced information and permit users to question the encrypted information while not revealing sensitive data to the cloud supplier. Progressive schemes don't enable complicated encrypted queries over encrypted information in an exceedingly multi-user setting or information center. To the current finish, would like a second sepulcher, a changed Paillier cryptosystem-based image scaling and cropping theme for multiuser that enable on cloud information center. Due to this multiple user will read and method the image while not sharing any encoding key

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