Academics Improve SHA-1 Collision Attack, Make It Actually Dangerous

https://it.slashdot.org/story/19/05/13/2255229/academics-improve-sha-1-…

https://news.ycombinator.com/item?id=19878917

https://eprint.iacr.org/2019/459.pdf

"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."

off: before: https://hup.hu/node/152199

( uid_18247 | 2019. 05. 15., sze – 14:53 )

A Streebog is problémás: https://eprint.iacr.org/2019/092.pdf (mondjuk ezt nem tudom, miért használná bárki is. van nekünk szép SHA256-512-nk, meg ott van a Keccak is)

----------------------------------
szélsőségesen idealista, fősodratú hozzászólás