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herrjemand's profile
Ackermann Yuriy 🇳🇿🇪🇺
Ackermann Yuriy 🇳🇿🇪🇺
Ackermann Yuriy  🇳🇿 🇪🇺
@herrjemand

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Ackermann Yuriy  🇳🇿 🇪🇺

@herrjemand

Certification @FIDOAlliance #FIDO2 #U2F #UAF. W3C #WebAuthn WG Invited Expert. Thoughts expressed here my own and are often silly

[UK]/TW/JP/KR/NZ
Joined December 2015

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    1. Scott Arciszewski‏ @CiPHPerCoder Aug 19

      ECDAA (part of WebAuthn) seems incredibly dangerously designed: https://fidoalliance.org/specs/fido-v2.0-id-20180227/fido-ecdaa-algorithm-v2.0-id-20180227.html#ecdaa-sign … + https://fidoalliance.org/specs/fido-v2.0-id-20180227/fido-ecdaa-algorithm-v2.0-id-20180227.html#encoding-ecpoint-values-as-byte-strings-ecpointtob … - Non-deterministic nonces - No point compression (hello invalid curve attacks) How the hell did this slip past cryptographers' radars?

      4 replies 36 retweets 63 likes
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      Ackermann Yuriy  🇳🇿 🇪🇺‏ @herrjemand Aug 20
      Replying to @CiPHPerCoder

      Hey Scott. I will pass your feedback to TWG *) Keep in mind that till now no one had implemented ECDAA so we have time to fix it *)

      5:00 AM - 20 Aug 2018
      • 1 Retweet
      • 8 Likes
      • Suby Raman WeblionX Lucas Garron Ivan 💚🧡 HacKan Tony Arcieri Chase Hughes Ryan Sleevi Scott Arciszewski
      0 replies 1 retweet 8 likes

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