We describe a browser extension, PwdHash, that transparently produces a different password for each site, improving web password security and defending against password phishing and other attacks. Since the browser extension applies a cryptographic hash function to a combination of the plaintext password entered by the user, data associated with the web site, and (optionally) a private salt sto...

Modern web browsers implement a private browsing mode that is intended to leave behind no traces of a user’s browsing activity on their computer. This feature is in direct tension with support for extensions, which can silently void this guarantee. We create a static type system to analyze JavaScript extensions for observation of private browsing mode. Using this type system, extension authors ...

With massive amounts of electronic information stored, transferred, and shared every day, legitimate needs for sensitive information must be reconciled with natural privacy concerns. This motivates various cryptographic techniques for privacy-preserving information sharing, such as Private Set Intersection (PSI) and Private Set Union (PSU). Such techniques involve two parties – client and serve...

* This research was partially supported by ITRC, # 500/8478 Summary Protection of private data is one of the most challenging issues threatening the success of Pervasive Computing (PC). Regarding the principles of privacy and the vision of pervasive computing, one of the most troublesome problems is how to provide people's control of their data while not distract them to a great extent. A suita...

Over the past two decades many countries have undertaken to decentralize government functions and transfer authority and responsibilities from central to intermediate and local governments, and often to communities and the private sector. Decentralization is potentially important to agricultural knowledge and information systems, but decentralization is not an end in itself, and successful dece...

The extension of the mains to marginal urban areas does indeed require considerable investment and implies supplying disadvantaged population groups whose ability to pay presents significant collection problems (Lyonnaise des Eaux, Lyonnaise des Eaux also suggests the use of order of priority within contracts, in order to prioritise services in the order of most pressing need, as follows (Lyonn...

the main objective of this descriptive research was to determinate the components related to an expansion of marketing of flowers and ornamental plants. the statistical population of the study consisted of all floriculturists (4920) in tehran, markazi, gilan, khozestan, and razavi-khorasan provinces as well as extension experts. a sample of 234 floriculturists was selected by use of “cluster pr...

this research was based on primary data collected through well designed and pre-tested questionnaire, to determine awareness of farmers on extension methods used by adp in kano state of nigeria. multistage sampling technique was used, in which three local governments were randomly selected. secondly, three wards one each from the selected local governments (danbatta, gaya and madobi) were rando...