Soatok Dreamseeker@pawb.social to Cryptography @ Infosec.pub@infosec.pubEnglish · 1 month ago

Practical Collision Attack Against Long Key IDs in PGP

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cross-posted to:
lobsters@lemmy.bestiver.se

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Practical Collision Attack Against Long Key IDs in PGP

Soatok Dreamseeker@pawb.social to Cryptography @ Infosec.pub@infosec.pubEnglish · 1 month ago

2

cross-posted to:
lobsters@lemmy.bestiver.se

Practical Collision Attack Against Long Key IDs in PGP - Dhole Moments

In response to the GPG.Fail attacks, a Hacker News user made this claim about the 64-bit “Long Key IDs” used by OpenPGP and GnuPG, while responding to an answer I gave to someone else&#…

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Em Adespoton
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1 month ago
It’s not a collision attack though; the person has to control both long key IDs.

Let me know when they can generate a collision against a known ID.
- Natanael@infosec.pub
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  1 month ago
  That IS a collision attack
  
  You’re talking about first preimage
  
  https://en.wikipedia.org/wiki/Preimage_attack

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