On anonymity in an electronic society

摘要: The past two decades have seen a growing interest in methods for anonymous communication on the Internet, both from academic community and general public. Several system designs been proposed literature, of which number implemented are used by diverse groups, such as journalists, human rights workers, military, ordinary citizens, to protect their identities Internet.In this work, we survey previous research done design, develop, deploy systems enabling private Internet. We identify describe major concepts technologies field, including mixes mix networks, onion routing, Dining Cryptographers networks. will also review powerful traffic analysis attacks that motivated improvements variations many these anonymity protocols made since introduction. Finally, summarize some open problems discuss possible directions future work field.