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A collection of 2 posts

crypto

That was Fast

The two PDF files shared as proof of the attack can be considered weapons: [...] SHA-1 colliding files are currently breaking SVN repositories. Subversion servers use SHA-1 for deduplication and repositories become corrupted when two colliding files are committed to the repository. This has been discovered in WebKit's Subversion repository and

  • Jakub Jelonek
Jakub Jelonek Feb 25, 2017 • 1 min read
crypto

SHA-1 is Really Dead Now

Matt Green: In crypto we have the idea that hash function collisions should be really hard to find, even if they're 'useless'. [...] [A real-world collision attack] is the equivalent of finding out that your scalpel wasn't sterilized properly. It may not verifiably have germs on it, but the whole instrument

  • Jakub Jelonek
Jakub Jelonek Feb 24, 2017 • 1 min read
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