Re: [Pearg] IP address Privacy Interim Follow up - Reputation System
Shivan Kaul Sahib <shivankaulsahib@gmail.com> Wed, 27 January 2021 00:23 UTC
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From: Shivan Kaul Sahib <shivankaulsahib@gmail.com>
Date: Tue, 26 Jan 2021 16:23:08 -0800
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To: Matthew Finkel <sysrqb@torproject.org>
Cc: pearg@irtf.org
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Subject: Re: [Pearg] IP address Privacy Interim Follow up - Reputation System
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Hi Matt, the Privacy Pass protocol being standardized at the IETF has similar use cases: https://datatracker.ietf.org/wg/privacypass/documents. A good way to drive discussion is to put together an Internet Draft that folks can review and comment on! On Thu, Jan 21, 2021 at 7:38 AM Matthew Finkel <sysrqb@torproject.org> wrote: > Hi Everyone, > > I'd like to follow up on the topic of reputation systems we briefly > touched on Tuesday. I'd like to understand the criteria of a system that > can help the Internet move towards deprecating IP addresses as a > fundamental signal in account-security/anti-fraud/anti-abuse systems. > > >From the perspective of a web user agent, I'll start with the following > properties: > > - A reputation and its associated identity must not be linkable > - This excludes the user and, possibly, a "reputation provider" > - A reputation must not be universally unique > - I suggest bucketing reputation into ~5 sets > - A reputation must not be a tracking vector > - Two "proofs of reputation" must not be linkable, neither across > sites nor on the same site. > - A client must be able to know (or query) its recent reputation > - A service provider must be able to increase and decrease a > reputation > - A client must only use a recent reputation > - A reputation should become stale and invalid within a short period > of time > - A client must be able to audit its reputation > - A client must be able to dispute changes in its reputation > - transitioning from a "bad" reputation to a "good" reputation should > be reasonably possible > - Computing a reputation must be well defined > - The system must support "anonymous" identities > - A client must be able to create a new and unique reputation not > linkable to previous reputations or identities > - A reputation must not be influenced by an associated IP address > > While these are not all hard requirements, it is important that this > system doesn't become a "virtual credit bureau" where someone's > reputation is based on black magic and good fortune. > > As a meta comment, I'm relatively new to IETF/IRTF processes, so I > appreciate recommendations on how this discussion should proceed. > > Thanks, > Matt > > -- > Pearg mailing list > Pearg@irtf.org > https://www.irtf.org/mailman/listinfo/pearg >
- [Pearg] IP address Privacy Interim Follow up - Re… Matthew Finkel
- Re: [Pearg] IP address Privacy Interim Follow up … Shivan Kaul Sahib
- Re: [Pearg] IP address Privacy Interim Follow up … Matthew Finkel