md5sum for egd, gnupg

Werner Koch
Wed Aug 13 21:37:01 2003

On Wed, 13 Aug 2003 19:22:53 +0100, Neil Williams said:

> certain amendments to the file - IIRC it is possible for two files to have 
> the same md5?

Yes sure.  One way to create such such a file is "cat foo >bar" :-)

There are still no real world collisions for the MD5 algorithm known
and it is not very likely that it it can be done in the foreseeable
time.  As cryptographers are walways paranoid, they suggest to use the
SHA-1 algorithm which has somewhat better properties and creates a
longer checksum (aka digest).



Werner Koch                                      <>
The GnuPG Experts                      
Free Software Foundation Europe