Shivaramakrishnan Narayan

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Secure management of Electronic Health Records (EHR) in a distributed computing environment such as cloud computing where computing resources including storage is provided by a third party service provider is a challenging task. In this paper, we explore techniques which guarantees security and privacy of medical data stored in the cloud. We show how new(More)
For certain types of sensitive data (such as health records) it is important to know the geographic location of the file, e.g. that it is stored on servers within the USA. This is particularly important for determining applicable laws and regulations. In this paper we discuss the problem of verifying the location of files within distributed file storage(More)
In this paper, we propose a new Identity-based sign-cryption (IBSC) scheme in the standard model. Our scheme shows an improvement of approximately 40% reduction in the ciphertext size when compared to the previously proposed IBSC schemes in the standard model. Further, we argue that the previous IBSC schemes do not provide sucient simulation ability in the(More)
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