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Link: The Sniper Attack against Tor Network

The Naval Research Labs has a conference paper to a new type of attack against the Tor Network.

an adversary may consume a victim relay’s memory by as much as 2187 KiB/s [903 median] while using at most only 92 KiB/s [46 median] of upstream bandwidth. -- a strategic adversary could disable all of the top 20 exit relays in only 29 minutes, thereby reducing Tor’s bandwidth capacity by 35 percent.

 

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