Why we want
to use MD5?
Actually MD5 algorithm take file of any size, which is a message
to the algorithm. Best thing or feature of the MD5 algorithm is, if a message
change its single byte, algorithm will produce totally different digest or
hash.
Simply, you can call MD5 as the fingerprint of a particular
message or file.
MD5 ensures that, the file transmitting from point A to point B
arrives intact and without any distortion.
The complete process is handled by
MD5 algorithm by generating hash string at point A and also generate the hash
string which we refer as checksum at point B.
And check files integrity whether
both the strings generated by MD5 are same or not.
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