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Old 05-29-2004, 10:12 PM   #1
Registered: Mar 2004
Location: Kitchener, Ontario, Canada
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Using .md5.asc files

I've just downloaded all of the iso images for Mandrake Linux 10, but before I burn them, I want to check using the MD5SUM. I've used it once before, but before there were separate md5 files for each iso image. This time, all I see on the ftp is one file with the extension .md5.asc. How do I use this file to check the images? Thanks in advance.
Old 05-30-2004, 04:17 AM   #2
Registered: May 2003
Location: Cambridge, MA
Distribution: SuSE, RedHat, and OpenBSD
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Here is something to get you started from:


Q: What are the ASC files that accompany the CD ISO images and MD5 files?

A: The files with the .asc extension are PGP-signed messages that contain the md5sum used for verifying the ISO CD images. With this you can be sure the ISO image and accompanying MD5 file are genuine, because the .asc file containing the MD5 is signed with Klaus Knopper's PGP key. This could only be compromised if someone got hold of the secret key used to sign the message. To verify the file, you need to import PGP key ID 0xBA8F038D from your favorite keyserver, then in Linux you can type "gpg --verify KNOPPIX_Vxxxxxxxxxxxxxxxxx.iso.md5.asc"
Old 05-30-2004, 11:20 PM   #3
Registered: Mar 2004
Location: Kitchener, Ontario, Canada
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Thanks a lot for your response.

I don't understand the part about importing a PGP key, because I don't know what it is; is it a file? If so, where do I put it? In the same directory as the ISO and ASC files?

Thanks again.
Old 07-11-2004, 12:42 AM   #4
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Registered: Jul 2003
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Distribution: Ubuntu
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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:

and if you wanna have a gnupg party:



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