On Wed, 10 Sep 2003 13:53:49 -0700 =?iso-8859-1?Q?J=E9r=F4me_ou_Sally_Bonnet?= <[EMAIL PROTECTED]> wrote: >Is it possible to design a program that creates a file that matches >a specific CHK, so that it would be possible to prevent users from >accessing a specific file by injecting the colliding file in the >network before the target file becomes too popular?
Yes, it is possible. But it is computationally very hard. For any given CHK there are an infinite number of files that yield that CHK after insertion. The problem is finding one of them. jnk Concerned about your privacy? Follow this link to get FREE encrypted email: https://www.hushmail.com/?l=2 Free, ultra-private instant messaging with Hush Messenger https://www.hushmail.com/services.php?subloc=messenger&l=434 Promote security and make money with the Hushmail Affiliate Program: https://www.hushmail.com/about.php?subloc=affiliate&l=427 _______________________________________________ Devl mailing list [EMAIL PROTECTED] http://dodo.freenetproject.org/cgi-bin/mailman/listinfo/devl
