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This page contains all of the posts and discussion on MemeStreams referencing the following web page: SHA-1 hash function under pressure . You can find discussions on MemeStreams as you surf the web, even if you aren't a MemeStreams member, using the Threads Bookmarklet.

SHA-1 hash function under pressure
by bmitchell at 9:46 am EDT, Aug 28, 2006

It looks like SHA-1 has been further broken, allowing the attacker to choose some of the text in the collision.

"Cryptographic experts at the Crypto 2006 conference have demonstrated a modified method of attack against a reduced variant of the SHA-1 hash algorithm. The new method is an attack which, for the first time, allows at least a part of the message to be freely selected, for example as straight text. Previous approaches, for example the collision attack by Xiaoyun Wang and her team, which attracted considerable attention, were merely able to produce almost completely different hash twins of the same length, both consisting of meaningless gibberish."


 
 
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