Hello,

here is the April 2017 report for SponsorR:

- During April, we moved forward and resolved tons of tickets on prop224 groundwork implementation that we hope to merge in tor-0.3.1: https://trac.torproject.org/projects/tor/ticket/21871 https://trac.torproject.org/projects/tor/ticket/21889 https://trac.torproject.org/projects/tor/ticket/21891 https://trac.torproject.org/projects/tor/ticket/21919 https://trac.torproject.org/projects/tor/ticket/21978 https://trac.torproject.org/projects/tor/ticket/21980 https://trac.torproject.org/projects/tor/ticket/22052

- Continued work on the service-side part of prop224: https://trac.torproject.org/projects/tor/ticket/20657 We are currently testing the hidden service code using chutney, and splitting it into smaller branches to ease review.

- Lots of design discussion on protecting onion addresses against phishing attacks: https://lists.torproject.org/pipermail/tor-dev/2017-April/012123.html

Also research on validating ed25519 public keys to avoid equivalent onion addresses: https://lists.torproject.org/pipermail/tor-dev/2017-April/012225.html We posted our ed25519 pubkey validation code: https://trac.torproject.org/projects/tor/ticket/22006

- Published technical report about relays we found camping the HSDir hash ring to monitor directory activity of hidden services: https://lists.torproject.org/pipermail/tor-dev/2017-April/012161.html

- More discussion on the name system proposal (prop279): https://lists.torproject.org/pipermail/tor-dev/2017-April/012126.html