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Old 05-05-2004, 07:43 PM   #1
Yohhan
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md5 and asc files


I'm trying to download slackware iso files, and the only options given are in md5 or asc format. What exactly are these? Checksums and signatures? How do I handle one of these files?
 
Old 05-05-2004, 08:25 PM   #2
Tinkster
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Where are you d/ling from?

Cheers,
Tink
 
Old 05-06-2004, 12:59 AM   #3
Yohhan
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ftp://slackware.oregonstate.edu/pub/...kware-9.1-iso/
 
Old 05-06-2004, 01:16 AM   #4
jschiwal
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You should have read the README.1st file:

Quote:
If you're reading this on ftp.slackware.com, you will find that the
ISO images here cannot be downloaded. This is because we simply don't
have the bandwidth at ftp.slackware.com to provide ISO images. ISO
downloads take a long time, and block people from retrieving small
updates.

If you're looking to download the ISO, consider using BitTorrent.
If there are active torrents available, information may be found on
on http://slackware.com. BitTorrent is available as a package for
Slackware in the /extra directory.

Mirror sites may also have the ISO images up for FTP.

Use the .asc files here to verify your ISO images are authentic.

Last edited by jschiwal; 05-06-2004 at 01:21 AM.
 
Old 05-06-2004, 01:35 AM   #5
Yohhan
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How do I use asc and md5 files to verify what I have is authentic?
 
Old 05-13-2004, 09:23 PM   #6
jschiwal
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If you have a file you downloaded that contains the md5 sums of all of the disks, just run:
md5sum -c <md5sums-file>

The md5 sums of each of the ISO files will be computed and compaired with the list.

You may want to read the info pages for gpg. The md5 fingerprints will protect against tampering of the iso files, but if the md5sum is also replaced (on the website), you could still have a problem. Gpg uses the PGP system for authenticating that the file is from where it should be from. Because this type of fingerprint is encrypted with the senders private key.
 
Old 07-10-2004, 11:43 PM   #7
win32sux
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to use an .asc file to verify a package's integrity, you need to have gnupg installed...

also, remember that gnupg and md5sum don't perform the same function...

here's some links:

http://httpd.apache.org/dev/verification.html

http://www.kernel.org/signature.html

http://www.gnupg.org/documentation/faqs.html


and if you wanna have a gnupg party:

http://www.cryptnet.net/fdp/crypto/gpg-party.html


=)
 
  


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