The blockchain-based smart contract lacks privacy, since the state and instruction code are exposed to public. Combining smart-contract execution with Trusted Execution Environments provides an efficient solution, called TEE-assisted contracts (TCSC), for protecting confidentiality of states. However, combination approaches varied, a systematic study is absent. Newly released systems may fail d...

BACKGROUND Obstetric fistula although virtually eliminated in high income countries, still remains a prevalent and debilitating condition in many parts of the developing world. It occurs in areas where access to care at childbirth is limited, or of poor quality and where few hospitals offer the necessary corrective surgery. METHODS This was a prospective observational study where all women wh...

A discrete memoryless generalized multiple access channel (GMAC) with confidential messages is studied, where two users attempt to transmit common information to a destination and each user also has private (confidential) information intended for the destination. This channel generalizes the multiple access channel (MAC) in that the two users also receive channel outputs, and hence may obtain t...

In the application of telemedicine, ECG signal without any patient details is sent to the Doctor end. Consequently, confusion is arisen between signal and patient’s identity. To avoid this confusion, it is necessary to combine ECG signals with patient confidential information when sent. In this paper, the Slantlet Transform based technique has been introduced to protect patient confidential dat...

In 1971 344 700 people sustained non-fatal injuries in road traffic accidents, and of these probably 8% (27 576) were back seat passengers. This figure is unlikely to be less in the subsequent years. Of these 27 576 passengers no fewer than half will have received moderate or severe injuries. Most authorities now accept that there is a dramatic reduction in the severity of injuries, in particul...

Absrfucr-Given two discrete memoryless channels @MC’s) with a common input, it is desired to transmit private messagea to receiver 1 at r&R, andcommon meswgea to both receivers at rate R,, while keeping receiver 2 as ignorant of tbe private messages as possible. Measurhg ignorance by equivocation, a single-letter characterization is given of the. achievable trfplea (RI&R,-,) where 4 is the equi...