• Radhika Dubey
• Pooja Chavan
• Bharati Landge
• Sujata Devkar
• Prof. S. S. Darawade

In the health care sector has resulted in price effective and convenient exchange of personal Health Records (PHRs) among several collaborating entities of the e-Health systems. Still, storing the confidential health information to cloud servers is vulnerable to revelation or stealing and demand the event of methodologies that make certain the privacy of the PHRs. Therefore, we have a tendency to tend to propose a way cited as Sash for secure sharing of the PHRs among the cloud. The Sash theme ensures patient-centric management on the PHRs and preserves the confidentiality of the PHRs. The patients store the encrypted PHRs on the un-trusted cloud servers and selectively grant access to differing kinds of users on whole totally different components of the PHRs. A semi-trusted proxy cited as Setup and Re-encryption Server (SRS) is introduced to line up the public/private key pairs and to provide the re-encryption keys. Moreover, the methodology is secure against executive director threats and put together enforces a forward and backward access management. Moreover, we have a tendency to tend to formally analyze and verify the in operation of Sash methodology through the High Level Petri Nets (HLPN). Performance analysis regarding time consumption indicates that the Sash methodology has potential to use for firmly sharing the PHRs among the cloud. put together we have a tendency to tend to Implement as a contribution throughout this paper time Server, Secure Auditing Storage, in Time Server PHR Owner add the beginning and Ending time attach to uploaded Encrypted files, and put together implement the TPA Module for verify the PHR Record its hack or corrupted for the opposite hacker and bad person if data hack from hacker side discover all system details of bad person like Macintosh Address and knowledge science Address its our contribution in our project.

Access control, cloud computing, Personal Health Records, privacy, Time Server, Auditing, Proxy Server

"Efficient and secure Re-encryption PHR Sharing with time server in cloud", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.158-162, June 2019, Available :http://www.jetir.org/papers/JETIR1908024.pdf

"Efficient and secure Re-encryption PHR Sharing with time server in cloud", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp158-162, June 2019, Available at : http://www.jetir.org/papers/JETIR1908024.pdf