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__agwa's profile
Andrew Ayer
Andrew Ayer
Andrew Ayer
@__agwa

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Andrew Ayer

@__agwa

Founder of @SSLMate, author of Cert Spotter. I do #webpki and #CertificateTransparency stuff.

San Francisco Bay Area
agwa.name
Joined November 2011

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    1. Andrew Ayer‏ @__agwa 12 May 2017
      Replying to @fugueish @CopperheadOS and

      FAQ suggests push notifications are just one of the ways to keep SWs running. What are the others? Do they all require user permission?

      1 reply 0 retweets 1 like
    2. Alex Russell‏ @slightlylate 12 May 2017
      Replying to @__agwa @fugueish and

      Background Sync will allow one-shot wakeups. No ability to schedule arbitrary wakeups w/o user consent.

      2 replies 0 retweets 0 likes
    3. Andrew Ayer‏ @__agwa 12 May 2017
      Replying to @slightlylate @fugueish and

      So if you're on a different network when connectivity is restored, you leak to site new IP address. Even if you never visit that site again.

      1 reply 0 retweets 0 likes
      Andrew Ayer‏ @__agwa 12 May 2017
      Replying to @__agwa @slightlylate and

      You also leak to network operator that you previously visited that site due to DNS/SNI/etc. leaks.

      5:53 PM - 12 May 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Andrew Ayer‏ @__agwa 12 May 2017
          Replying to @__agwa @slightlylate and

          Seems bad to permit this without user consent.

          1 reply 0 retweets 0 likes
        3. Alex Russell‏ @slightlylate 12 May 2017
          Replying to @__agwa @fugueish and

          We have discussed that at length too.

          1 reply 0 retweets 0 likes
        4. CopperheadOS‏ @CopperheadOS 12 May 2017
          Replying to @slightlylate @__agwa and

          Discussed at length != addressed the concerns or came to conclusions that other people think is reasonable.

          1 reply 0 retweets 0 likes
        5. CopperheadOS‏ @CopperheadOS 12 May 2017
          Replying to @CopperheadOS @slightlylate and

          Pretty sure there's internal discussion on a lot of things that are unreasonable, like telling sites build id + phone model / OS build id.

          1 reply 0 retweets 0 likes
        6. CopperheadOS‏ @CopperheadOS 12 May 2017
          Replying to @CopperheadOS @slightlylate and

          Or giving precise details on GPU information and allowing dumping of the rendered buffers. Or the battery API that's not even portable.

          1 reply 0 retweets 0 likes
        7. Alex Russell‏ @slightlylate 12 May 2017
          Replying to @CopperheadOS @__agwa and

          Every API we add has the potential for misdesign. That's why we focus on working in standards and ensuring impl flexibility.

          1 reply 0 retweets 0 likes
        8. Alex Russell‏ @slightlylate 12 May 2017
          Replying to @slightlylate @CopperheadOS and

          For instance, for one-shot background sync, one idea we discussed was only allowing site/network pairs that had been previously seen.

          1 reply 0 retweets 0 likes
        9. Alex Russell‏ @slightlylate 12 May 2017
          Replying to @slightlylate @CopperheadOS and

          And the API has been designed to allow a flexible policy like this should we decide it's better in the future.

          1 reply 0 retweets 0 likes
        10. 3 more replies

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