Key-Aggregate Cryptosystem for Scalable Data Sharing in Cloud Storage

Key-Aggregate Cryptosystem for Scalable Data Sharing in Cloud Storage Data sharing is an important functionality in cloud storage. In this paper, we show how to securely, efficiently, and flexibly share data with others in cloud storage. We describe new public-keycryptosystems that produce constant-size ciphertexts such that efficient delegation of decryption rights for any set of ciphertexts are possible. The novelty is that one can aggregate any […]


Solar-Powered Wireless Temperature Sensor Based On UWB RFID With Self-Calibration

Solar-Powered Wireless Temperature Sensor Based on UWB RFID With Self-Calibration Abstract: This paper presents a solar-powered wireless temperature sensor based on time-coded ultrawideband (UWB) radio frequency identification. A negative temperature coefficient resistor acts as the sensing element. It controls the current of a PIN diode connected to a UWB scattering antenna. The wireless sensor is […]