jdd wrote:
Michael Skiba wrote:
something, since the file with the same md5sum must be valid and contains the destructive code and this will be rather difficult.
not so sure.
it's usually possible to include in any file dummy code (at the end, by example), never executed, but this allow to adjust a file.
it's also possible to delete some part of the code, most application have very rarely used code one can delete without notice
so, in theory, it's possible to change an application working and adapt to have the same md5sum.
but I nevre heard of such thing so this may be very difficult to acheive.
if it's not possible to have a calculation of the missing code (ie md5sum1 - md5sum2 gives the code to add), finding the necessary code may be impossible
jdd
Making any change to the original file causes a significant change to the md5sum. Adding or deleting a small amount of code would be noticable. You'd have to come up with some method of retaining the same md5sum, while encorporating those changes. Perhaps you should read up on md5sum and hashing to understand why it's so difficult to sneak in any change. -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org