Implementation of E-Health Cloud System Using Timing Enabled Proxy Re-encryption function (Re-dtPECK)
Keywords:EHR, Encryption, SE, Re-dtPECK.
E-Health record system is a major application which provides great convenience to patients and doctors in the field of health care where patient can no longer use paper prescription and keep it in record for future diagnosis. The major concern is security and sensitive personal information of patients which can be easily misused by the third-party users. Thus, we introduce novel cryptographic primitive named as conjunctive keyword search with designated tester and timing enabled proxy re-encryption function (Re-dtPECK), which is a time-dependent SE scheme. It provides partial access to operate search function to users for limited period of time. Also, the length of the time period can be controlled for the delegatee to search and decrypt delegators encrypted documents. The major feature is it supports the conjunctive keywords search and resist the keyword guessing attacks. By this, only the designated tester can provide exsistence to certain keywords. Therefore making Re-dtPECK is efficient scheme for standard model.
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