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Platform-releng/How to check integrity of downloads

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Revision as of 12:36, 21 October 2013 by David (Talk | contribs) (Initial contents)

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Verifying integrity of downloads

Downloads can be verified using md5sum or sha1sum, a Unix command line tool provided in the GNU Textutils package. Windows binary versions are available such as at

  • Most downloads have an associated link "(md5)" to a *.md5file containing its MD5 checksum and another link "(sha1)" to a *.sha1 file containing its SHA1 checksum. Download these files, such as from Eclipse download page, into the same directory as the downloaded archive file.
  • Execute the command "md5sum -c <zipfilename>.md5" or "sha1sum -c <zipfilename>.sha1". The result "<zipfilename>: OK" is indicative of an intact download.

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