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Re: [tor-bugs] #12498 [Tor]: Implement ed25519 identity keys (prop 220)

#12498: Implement ed25519 identity keys (prop 220)
------------------------+--------------------------------
     Reporter:  asn     |      Owner:
         Type:  defect  |     Status:  new
     Priority:  normal  |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor     |    Version:
   Resolution:          |   Keywords:  026-triaged-1
Actual Points:          |  Parent ID:
       Points:          |
------------------------+--------------------------------

Comment (by nickm):

 Remaining tasks:
   * Check whether voting procedure described in 220 should be replaced by
 what I implemented, or implemented.
   * Check test coverage; tests for all non-covered lines.
   * Change handling of certificate validity times in descriptors so that a
 descriptor is either valid or not.
   * Make sure that we regenerate new signing keys as needed.
   * Only try to load master key in init_ed_keys() when we're making a
 signing key cert.
   * Validate extrainfo items better:
     * when validating, reject the extrainfo if the ri has an ed key and
 the ei doesn't.
     * when validating, reject the extrainfo if the keys mismatch.
     * check sha256 digest for match too.
   * Link handshake implementation
     * Send ed key during link handshake in certs cells.
     * Generate ed->link certification.
     * check ed->link certification as well as rsa certification if
 offered.
     * set ed identity on connections.
     * offer an auth method that uses ed keys.
     * implement auth method that uses ed keys.
     * use it as possible.
     * set ed identity on connections

 For another ticket:
   * Support offline master identity keys.
   * Support new link identifiers in EXTEND cells
   * Write a proposal for eventually removing RSA1024 identities
   * Write a proposal for deprecating TAP
   * User interface for identifying nodes by ed25519 key
   * Family support for ed25519 keys (or some other family thing)
   * Other stuff in prop220
   * Controller interface
   * Bridge identity support with ed25519

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12498#comment:8>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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