Quantum Privacy
Science · 2008
For those that have it and for those that seek it, the saying that information is power is as true today as it ever was. Closely coupled to that, however, is the question of privacy—how to ensure that the information stored in a database is secure (data privacy), and that the information retrieved by users, as in a Web search, is not used against them (user privacy). For good reason, holders of information do not wish to compromise their advantage and so make it difficult to access the information (storing log files). That, however, tends to put users at the disadvantage of having to compromise their privacy or trust the database provider not to use the information in any dishonest way.