#tor-dev: prop280

Meeting summary

1. 1. ACTION: write a k-of-n secret sharing spec (teor, 00:41:03)
   2. ACTION: revise prop280 to use k-of-n secret sharing (teor, 00:41:25)
   3. ACTION: update the proposal to deal with post-submission shared-random-based relay subset selection (teor, 00:47:35)
   4. ACTION: increase the noise added in the spec for each subset of relays that produces a result (teor, 00:51:13)
   5. ACTION: specify how to estimate sensitivity and expected values for each counter, and how to turn that into a set of sigmas (teor, 01:13:34)
   6. ACTION: specify how to safely change the set of counters that is collected (or the noise on those counters) as new tor versions that support new counters are added to the network (and old versions leave) (teor, 01:14:35)
   7. ACTION: specify the privacy budget parameter that we need to turn into consensus parameters (teor, 01:37:00)
   8. ACTION: specify how to maintain privacy guarantees when the set of statistics changes, probably by reducing accuracy (teor, 01:44:41)

Action items

1. write a k-of-n secret sharing spec
2. revise prop280 to use k-of-n secret sharing
3. update the proposal to deal with post-submission shared-random-based relay subset selection
4. increase the noise added in the spec for each subset of relays that produces a result
5. specify how to estimate sensitivity and expected values for each counter, and how to turn that into a set of sigmas
6. specify how to safely change the set of counters that is collected (or the noise on those counters) as new tor versions that support new counters are added to the network (and old versions leave)
7. specify the privacy budget parameter that we need to turn into consensus parameters
8. specify how to maintain privacy guarantees when the set of statistics changes, probably by reducing accuracy

People present (lines said)

1. teor (103)
2. ohmygodel (90)
3. nickm (68)
4. armadev (49)
5. robgjansen (25)
6. Samdney (18)
7. nickhopper (4)
8. MeetBot (2)
9. cypherpunk (2)