git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Exploiting SHA1's "XOR weakness" allows for faster hash calculation

From
Sebastian Schuberth <sschuberth@gmail.com>
Date
Dec 5, 2012, 09:19 UTC
Message-ID
<k9n3jd$akg$1@ger.gmane.org>
Hi,

to say it in advance: I do not want to trigger any bogus security discussion here. Instead, I believe the findings from [1] allow for an up to 20% faster SHA1 calculation, if my brief reading of the presentation is correct. Any opinions on integration this optimization into Git?

[1] https://hashcat.net/p12/js-sha1exp_169.pdf
-- 
Sebastian Schuberth
Next: Marko Kreen
Message 1 of 4 in “Exploiting SHA1's "XOR weakness" allows for faster hash calculation”
  1. Sebastian SchuberthDec 5, 2012
  2. Marko KreenDec 5, 2012
  3. Theodore Ts'oDec 5, 2012
  4. Sebastian SchuberthDec 6, 2012

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.