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May 14, 2019 12:10 am
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/pv9tXQEfBCY/academics-improve-sha-1-collision-attack-make-it-actually-dangerous
Academics Improve SHA-1 Collision Attack, Make It Actually Dangerous
An anonymous reader writes: "Attacks on the SHA-1 hashing algorithm just got a lot more dangerous last week with the discovery of the first-ever 'chosen-prefix collision attack,' a more practical version of the SHA-1 collision attack first carried out by Google two years ago," reports ZDNet. Google's original research allowed attackers to force duplicates for specific files, but this process was often at random. A new SHA-1 collision attack variation (a chosen-prefix attack) detailed last week allows attackers to choose what SHA-1-signed files or data streams they want to forge on demand, making SHA-1 an attack that is now practical in the real world, albeit at a price tag of $100,000 per collision.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/pv9tXQEfBCY/academics-improve-sha-1-collision-attack-make-it-actually-dangerous
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