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Journalism of Courage
Researchers at IIT-Kharagpur have developed a method of accessing encrypted data on cloud servers using keywords, without needing decryption and without compromising the device’s security. Secured Embedded Architecture Lab (SEAL) at IIT-Kharagpur came up with the method which allows searchable encryption, or more simply, keyword-based searches over encrypted document collections and databases.
The research has led to Controlled Access Searchable Encryption (CASE), which allows a data owner to generate a controlled-search access that can restrict the search capabilities of a user to a specific subset of documents. Professor Debdeep Mukhopadhyay, lead researcher of the project and director of incubation at Embedded Security and Privacy Pvt Ltd. (ESP), said: “We are currently working on massive area and power optimisations of the prototype for devices such as mobile phones. Fortunately, many of the primitives used by our technology are already present in modern gadgets for security. We intend to leverage these in order to reduce device cost. In addition, it is also possible to host our service online, and access the same from one’s own device via a simple login, with minimal processing requirements in the device itself.”
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