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SHA-1 Checksums

Added on:8/31/2008 9:09:35 PM
In Linux Tips
 Rated by 1 users


  1. SHA-1 is the successor of MD5 ( Read about MD5 here ) and is a tool to check the integrity of your downloads.

  2. The SHA-1 algorithm is the brainchild of the US-based National Security Agency (NSA)

  3. Basically it works the same as the MD5, a SHA-1 file is available on the FTP server where you downloaded your ISOs and when opening it you will see a string of numbers that you compare to the output of the command:

  4. CODE
    $ sha1sum /home/bruno/downloaded.iso

  5. The string you get from this command typically looks like:
    QUOTE
    f560f26a32820143e8286afb188f7c36d905a735

  6. You compare it to the string you find in the SHA-1 file on the FTP mirror. If both of them are identical you can be sure your downloaded ISO is okay and you can burn it to a CD.


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