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The adoption of Electronic Health Record (EHR) systems has been widespread both locally and globally. The result of such adoptions has been the generation of huge amounts of digital healthcare data, assets which are valuable towards providing better care and management of patients. While studies conducted on secondary use of EHR data have found to be beneficial, such use is still in its infancy. As such, a complementary approach of Practice-based evidence (PBE) to decision making which leverages on EHR data as practical clinical evidence has been proposed. As part of evaluating the feasibility of PBE approach to decision making, this paper aims at studying the perception Singapore doctors have on the clinical benefits of using EHR systems and the usefulness of EHR data to assist with decision making. The findings from this study will aid in understanding the potential of utilising EHR as practical clinical evidence in the approach of PBE to decision making.

This paper describes two different fault injection attacks on the authenticated encryption stream cipher Tiaoxin-346, a third round candidate in the CAESAR cryptographic competition. The first type of fault injection uses a bit-flipping fault model to conduct a forgery attack. The number of faulty bits required for this forgery attack is twice the number of bit modifications made in the input message. The second type of fault injection uses a random fault model in a differential fault attack to recover the secret key of the cipher. A successful attack can be performed with 36 random multi-byte faults and a computational complexity of 236. This second attack improves on the previous key recovery attack of Dey et. al., as the random fault model we use is more practical than the bit flipping model used in their attack.