To counter this growing threat of censorship, Feamster et al. have proposed Infranet , a system that allows users to surreptitiously retrieve sensitive content through secretly modified HTTP servers globally distributed outside of the censor's network of control. Infranet is novel because it attempts to hide requests and responses for sensitive content within a sequence of seemingly innocuous web browsing transactions. Not only does Infranet protect the secret communications between Infranet clients and servers, but it additionally attempts to disguise its traffic in a way that masks its very existence. In short, Infranet presents the first such anti-censorship system which strives to achieve covertness in addition to confidentiality. These unique features of Infranet provide valuable benefits to system users and significant obstacles to censors. Infranet gives its clients and servers a legitimate plausible deniability of using the system, reducing the risk of punishment and legal harassment for running Infranet. It hampers the ability of censors to methodically block or filter Infranet traffic since it is virtually indistinguishable from innocuous HTTP traffic. Likewise, discovering or tampering with Infranet sessions is significantly harder.