Raphael Robert

@raphaelrobert

Head of Security at . Opinions are my own.

Vrijeme pridruživanja: prosinac 2008.

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    1. velj

    me, an astrophysicist who has published 2 (nearly 3!) papers on Betelgeuse and specializes in supernovae: *tweets about Betelgeuse* men in my mentions: “well actually it may have already exploded do you know how light works here’s the Wikipedia link also calm down”

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  3. 1. velj

    While this poll is neither representative nor scientific it sort of confirms my hunch that deniability is a divisive property and should ideally be optional.

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    31. sij

    Getting started with cryptographic protocol analysis is now easier than ever! Check out our new 17-minute video tutorial, now on YouTube – it covers Verifpal’s language, how to use Verifpal to verify post-compromise secrecy in Signal, and more:

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  5. 31. sij

    Friday poll: Having deniability (TBD) at the protocol level for secure messaging is:

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    30. sij

    I keep watching MLS standards efforts closely - this is still one of the most interesting developments in the messaging space in the last 10 years or so. Not perfect, but it's possible that this will become the best compromise we have right now.

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  7. 30. sij

    Finally! Now all we need is ChaCha20Poly1305...

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    30. sij

    The IETF Messaging Layer Security (MLS) working group released an update of the Architecture document.

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  9. 29. sij

    Relieved to see that Italians can finally resort to non-verbal communication on Twitter with this new emoji from the 2020 emoji list:

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  10. 29. sij
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  11. 29. sij

    Journalists are still confusing end-to-end encryption with transport encryption: This kind of mix-up is dangerous for your readers!

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  13. 24. sij

    After quickly glancing at the documentation, it seems Google has always access to your keys or secrets, even if you provide your own keys for encryption at rest

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    20. sij
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    24. sij

    This is how an IETF Messaging Layer Security (MLS) secure group messaging session evolves over time… Our CGKA is called TreeKEM and most of the time requires O(log N) encryptions / O(1) decryption for changes in active groups.

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  16. 23. sij

    I’m really wondering how anything Clearview AI does is compatible with GDPR...

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  17. 22. sij

    Minutes from the last MLS interim in NYC: So well written! Thanks to and

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  18. 14. sij

    The last MLS interim meeting in NYC this weekend was a productive one! We talked about metadata protection, stronger authentication, deniability, improvements to post-compromise forward security, ciphersuites, symbolic analysis and decentralisation.

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    13. sij

    videos of 2020 are online! (but for one) mine is in the "Symmetric Cryptography II" session lot of great talks, I loved Gaudry's on e-voting

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    One thing that the Messaging Layer Security working group has shown is that N cryptographers working together can be as good or better than 2 cryptographers (for N>2). You end up with a lot more complexity, but working through that complexity reveals new and powerful insights.

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