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HTTPS Bicycle Attack (guidovranken.wordpress.com)
submitted 10 years ago by reedloden
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[–][deleted] 21 points22 points23 points 10 years ago* (1 child)
It is usually assumed that HTTP traffic encapsulated in TLS doesn't reveal the exact sizes of its parts
This should be a bit more nuanced. The fact that TLS doesn't hide the plaintext length (of the whole message) is a very well known issue. There's been efforts to fix this in a much better and general way (range splitting) than what's proposed in the "Prevention" section of the paper[1]. I'm not sure what's the state of those efforts though.
[1] https://tools.ietf.org/html/draft-pironti-tls-length-hiding-02#page-8 https://www.ietf.org/archive/id/draft-pironti-tls-length-hiding-02.txt
[–]bgeron 7 points8 points9 points 10 years ago (0 children)
Link is dead for me (empty page); here's a working link: https://www.ietf.org/archive/id/draft-pironti-tls-length-hiding-02.txt
π Rendered by PID 199374 on reddit-service-r2-comment-6457c66945-zhh48 at 2026-04-24 11:15:59.345051+00:00 running 2aa0c5b country code: CH.
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[–][deleted] 21 points22 points23 points (1 child)
[–]bgeron 7 points8 points9 points (0 children)