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[tor-bugs] #26041 [Core Tor/Tor]: Set Default version to 3 for new onion; V2 onion can be cracked easily

#26041: Set Default version to 3 for new onion; V2 onion can be cracked easily
------------------------------+--------------------
     Reporter:  cypherpunks   |      Owner:  (none)
         Type:  project       |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
------------------------------+--------------------
 Currently, the user should add 'Version 3' to torrc to generate V3 onion.
 I want you to use V3 by default.

 e.g.: HidServ /keys/onion/

 Scan /keys/onion/,
 a1. Is V3 hostname file exist? ===> use V3 only and ignore V2 onion
 a2. Is V2 hostname file exist? ===> use V2 only (and ignore V3)
 a3. Both file is not exist ===> Then, generate V3 onion.

 I've successfully generated "already-exist onion's private key".

 -----BEGIN RSA PRIVATE KEY-----
 MIICXgIBAAKBgQDPquVHKOacJ/fgY6G3vzbO4KgUYxRN5qlaysnKsApWBuGKWyoE
 irps1kmiPG1ewAxDYzrQtFzC14f94z8urN64SY8IaRgu76FHS5XeRDQ5AzIi54FH
 gHMEhbEReM5gRdxftgMto9Jhi+AoKO/VPhVlaIZyB7C223CiVyc299Qe7QIDAQAB
 AoGAalUSAybBNhINDRtW0fQZx0InLhExc1X5P2D4hE0xba0mTSay1BKItHPgzi5s
 vghN/y9PDVBc8vNTUb/LOUYQ35SBaEZKw0/TM+rnv/cHvnelPsrkyZmkr5HiQiUM
 p4cIwYO3VlF6NsGjhwZ3d0VJXSrsy6lUIYFjZFMB1OJ0H80CQQD/n76S6MHFKv6N
 9Imx2NCtQxYU/pbHMdUZOuG2MvpwmbkIYxO85AWxbp+9OMgr1s04kKtT9fhSM1iK
 R5/ZSqPDAkEAz/kX1viCd/l2qGD9bfJsd6+TNdsoaply7y7B/pgJZan4tQyi0Vha
 CexMW/M+j64hwWdTmP34ewcYbG+45cF3jwJBAPcs9W9C6BOKdmi3m+m/2FChfRnB
 7/QfSIrD9/thIe99hYEJpM1Sw/qFGKs028IgS4K1ySU/w+VgRu43QecwGFcCQQCd
 ziSIuYhGAMRIf0/NXWVwa4kIFINWX5kWZCRPSo3W1mIg/rWMo72uSd6m5qtR2o9C
 cWS9cfhZYcjmft+Ndn+BAkEArSW4oN9RibSh3JG0zstWTF6al6zPuhNxfB57MLaE
 HCS2yJf2vvWVTs9ZYBUEZUNX0OJ5doW5kl20gkXrsY4RKw==
 -----END RSA PRIVATE KEY-----

 I used 4 nvidia GPU and this took about 1 week.
 All V2 hosting admins should use V3.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26041>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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