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

Re: Starting to think about sha-256?

From
Linus Torvalds <torvalds@osdl.org>
Date
Aug 28, 2006, 21:23 UTC
Message-ID
<Pine.LNX.4.64.0608281421120.27779@g5.osdl.org>
In-Reply-To
<m3r6z0ef95.fsf@defiant.localdomain>
On Mon, 28 Aug 2006, Krzysztof Halasa wrote:
> 
> Well, conflicting files will most probably have the same size,
> like with MD5 cases :-)

That's only true for the much easier injection case where you generate _both_ files together.

>From an external git hash-attack standpoint, that's not a very useful

case. It's much more useful if you can make a new file that has a hash that matches a given old file, and in that case, the filelengths are likely not the same.

			Linus
Previous: Krzysztof HalasaNext: Johannes Schindelin
Message 16 of 19 in “Starting to think about sha-256?”
  1. Jeff GarzikAug 27, 2006
  2. Krzysztof HalasaAug 27, 2006
  3. Linus TorvaldsAug 27, 2006
  4. Krzysztof HalasaAug 27, 2006
  5. Johannes SchindelinAug 27, 2006
  6. Linus TorvaldsAug 27, 2006
  7. David LangAug 28, 2006
  8. Linus TorvaldsAug 28, 2006
  9. Linus TorvaldsAug 28, 2006
  10. Jeff KingAug 28, 2006
  11. Linus TorvaldsAug 28, 2006
  12. Jeff KingAug 28, 2006
  13. Krzysztof HalasaAug 28, 2006
  14. Linus TorvaldsAug 28, 2006
  15. Krzysztof HalasaAug 28, 2006
  16. Linus TorvaldsAug 28, 2006
  17. Johannes SchindelinAug 28, 2006
  18. Linus TorvaldsAug 28, 2006
  19. Florian WeimerAug 29, 2006

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.