To design an efficient protocol for sharing the encrypted lock keys in the renting house system,we introduce a new notion called time-and identitybasedproxyreencryption(TIPRE)and the blockchain *** CPA secure TIPRE ...
详细信息
To design an efficient protocol for sharing the encrypted lock keys in the renting house system,we introduce a new notion called time-and identitybasedproxyreencryption(TIPRE)and the blockchain *** CPA secure TIPRE scheme is constructed from Green et al.’s identity-based proxy reencryption scheme by adding the time *** every time period,a time stamp authority generates a public key embedded with the current time stamp for each *** our protocol for the renting house system,the TIPRE scheme is the primary building block,and the blockchain platform serves instead of a trusted third party,such as a real estate agency between landlords and *** TIPRE scheme allows the landlord to change the lock key at each time period for *** blockchain platform allows the landlords and tenants to directly interact,and all of the interactions are recorded in the blockchain database to provide the desired security requirements,such as nonrepudiation and ***,we provide the secure analysis of our protocol and test its performance by implementing it in the MacBook Pro and the Intel Edison development platforms.
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