Need better release validation documentation/strategy.

[Bob Friesenhahn]

Today I saw an announcement for a new version of gzip.  It provided 
lots of data for how to verify the downloaded tarballs.  I recently 
saw a very similar announcement for a new version of libtool. I am not 
sure where the template of this announcement text is coming from, and 
if anyone has validated that recipients will be able to make sense of 
it.
The problem is that the advice in the announcements regarding use of 
'gpg' just doesn't work (commands fail), and even the SHA256 checksum 
is described as "SHA256 checksum is base64 encoded" which I was 
previously only seeing from the BSD-oriented OpenSSH project which 
might be using a BSD tool which produces such checksums.
It seems like Automake and GNU in general should be trying to help 
with producing releases and release announcements which assist users 
with verifying the release tarballs rather than just leaving them 
royally confused.
If ordinary people are not able to use the data provided with the 
release announcement, then they will not be validating the tarballs 
that they run-across.  Download statistics suggest that the vast 
majority of source-code tarball downloads are not being validated at 
all.
If 'gpg' commands are provided, then they should be able to work by 
default on popular OS platforms.  Likewise, if a SHA256 checksum is 
provided and something new like "SHA256 checksum is base64 encoded", 
then instructions should be provided for how to use mature GNU tools 
(and/or popular non-GNU tools) to reproduce such a checksum.
While I was able to figure out how to use a combination of openssl and 
base64 to create matching SHA256 checksums, I doubt that most people 
would be willing to spend a half hour researching and figuring out how 
to do this.  I was not able to figure out how to produce a similar 
SHA256 checksum using the GNU software provided by the OS I am using.
I am not sure who the target audience is for GNU releases these days, 
but if it is not normal people who are still willing to compile 
software from source code on popular systems such as GNU/Linux, then 
there is a problem.
Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
Public Key,     http://www.simplesystems.org/users/bfriesen/public-key.txt