Security
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Computer Security Information
File Integrity & Trusts
MD5SUM is one of the simplest, easiest, and quickest way to test for file integrity.
It allows creation of a "hash" which corresponds to the file in question.
Often times, when downloading a file, archive, .zip file, .tar.gz file, installation file, etc,
you are presented with an option to download an MD5 file, which can be used to varify the file you are downloading is legitimate.
If this .md5 file is properly formatted, meaning it is only one line, assuming we are only working with one file,
with no extra blank lines. The line MUST have the format of HASH_CODE -two-spaces, no more, no less, and the name of the file you are verifying.