This paper reports first steps towards a formal model for strategy leakage. We generalize the representation of prior adversarial knowledge from a distribution on secrets to a distribution on strategies for generating secrets, which we call an environment. Applying information-theoretic techniques to environments allows us to disentangle the information leakage about a secret from the leakage a...

Abstract Departing employees are a classic problem in trade secret law. Employees who wish to set up on their own or accept job offer from principal’s competitor may often be tempted take with them valuable and information the existing business. The law should protect employers against this. On other hand, have legitimate interest being able change jobs, not so protective as severely hamper lab...

Motivated by typo correction in password authentication, we investigate cryptographic error-correction of secrets in settings where the distribution of secrets is a priori (approximately) known. We refer to this as the distribution-sensitive setting. We design a new secure sketch called the layer-hiding hash (LHH) that offers the best security to date. Roughly speaking, we show that LHH saves a...

* NUS Business School, National University of Singapore. Ivan Png thanks the Tuck School of Business, Dartmouth College, for warmly hosting a visit during which this study began. We thank Jim Pooley, Lu Yi Davin Chor, Lee Fleming, Paul Wolfson as well as other NUS and Dartmouth colleagues, and audiences at Harvard Law School, Stanford Law School, Yale Law School, the NBER Productivity Lunch, DR...

This paper investigates the impact of the US and China’s foreign aids to Africa on trade flows between donor and recipient countries. Evidence from the gravity model estimates reveals that the two donors’ exports are strengthened by their aids to African partners. Interestingly, China’s aid shows a positive effect on its total volume of trade and imports from Africa, while the aid from the US e...