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A comment on Elsevier Complaint Shuts Down Sci-Hub Domain Name. Parent comment

Re:Elsevier Complaint Shuts Down Sci-Hub Domain Name by mirimir on Thursday May 05, 2016 @06:36PM (#11640200)
No, from its private key! The same key that's used to sign outgoing content, authenticating to the Tor network.

Edit: I'm wrong. It's based on the hash of the public key.

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Re:Elsevier Complaint Shuts Down Sci-Hub Domain Name by ikeboy on Thursday May 05, 2016 @07:02PM (#11640364)
How can anyone verify a hash of the private key without having it? Anyway, see https://trac.torproject.org/projects/tor/wiki/doc/HiddenServ...
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Re:Elsevier Complaint Shuts Down Sci-Hub Domain Name by mirimir on Thursday May 05, 2016 @08:29PM (#11640805)
I don't know the details. But basically, a Tor relay provides some token to the onion server. The onion server signs that token with its private key, and returns the output to the Tor relay. Then the Tor relay verifies that the token was signed by the private key corresponding to the onion hostname.
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