Recent social and technical developments are expanding surveillance by the government and private sector and intensifying privacy concerns, resulting in a surveillance-privacy dilemma. Governments establish surveillance schemes to fight terrorism and crime. Private organizations use profiling and data mining techniques to target marketing endeavors, to analyze customer behavior and monitor the ...

abstract: access to exact and reliable information about the land and knowledge of legal situation of land during of transaction is very important. the person that wants acquire a land, he spends charges for achieving of information but sometimes these efforts don’t result to consequence and it is possible that transferee confronts whit person who isn’t owner or who does opponent transactions. ...

M any countries recognize privacy as a right and have attempted to codify it in law. The first known piece of privacy legislation was England's 1361 Justices of the Peace Act, which legislated for the arrest of eaves-droppers and stalkers. The Fourth Amendment to the US Constitution proclaims citizens' right to privacy , and in 1890 US Supreme Court Justice Louis Brandeis stated that " the righ...

Participation in online social networking sites (OSNS) has increased dramatically in recent years. Services such as the well-known Facebook and Myspace but also Frienster, WAYN, Bebo, Google’s Orkut and many others, have millions of registered active users and are continuously growing. The most common model for these sites is based on the presentation of the participants’ profiles and the visua...

Purpose – This paper aims to address the privacy problem associated with the use of internet search engines. The purpose of the paper is to propose and validate a set of methods and protocols to guarantee the privacy of users’ queries. Design/methodology/approach – In this paper h(k)-private information retrieval (h(k)-PIR) is defined as a practical compromise between computational efficiency a...