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secpack: use Bitcoin block hash in freshness proof for canaries #2685

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rootkovska opened this Issue Mar 9, 2017 · 2 comments

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@rootkovska @petertodd @marmarek
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rootkovska commented Mar 9, 2017

@petertodd suggested we should include Bitcoin block hash as part of the proof-of-freshness for canaries. Advantages:

  1. Simple
  2. Doesn't trust external organizations
  3. Last but not least: doesn't require working rss feeds to be verified

We only need to be careful to include a hash of a block which gets enough confirmations to be considered part of the main chain.

Anyone willing to submit a PR for the freshness generator? @petertodd? :)

@rootkovska rootkovska added enhancement P: major security C: other labels Mar 9, 2017

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petertodd Mar 9, 2017

Ha, I'll get right to that!

petertodd commented Mar 9, 2017

Ha, I'll get right to that!

@petertodd petertodd referenced this issue in QubesOS/qubes-secpack Mar 9, 2017

Merged

Add Bitcoin block hash to proof-of-freshness #15

@emanuelb emanuelb referenced this issue in firstlookmedia/autocanary Jun 20, 2017

Open

Provide blockchain based proof of freshness #28

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marmarek Sep 10, 2017

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Implemented (see PR above)
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marmarek commented Sep 10, 2017

Implemented (see PR above)

@marmarek marmarek closed this Sep 10, 2017

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