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Hash Algorithm for PK of list of files

Posted: 06/05/2013 13:54:00
by Darian Miller (Standard support level)
Joined: 06/27/2011
Posts: 49

MD5 (SB_ALGORITHM_DGST_MD5) was my original choice for using a MD5 hash to generate a unique identifier for use with a list of files. Apparently, according to a colleague of mine, MD5 is not as "collision resistant" as once thought. What's the current recommended hash Algorithm to utilize for uniquely identifying files by their content? Is it still MD5 due to its speed and relatively really-small chance of collisions?

Is it known if the 'big time' cloud providers (MS/Amazon) use MD5, SHA-1, or something else for their use?
Posted: 06/05/2013 14:08:33
by Eugene Mayevski (Team)

All modern high-level protocols migrate to SHA-2 (SHA256, SHA384, SHA512). Also SHA-3 recently was announced, but it's of no practical use so far (neither it is really needed).

Sincerely yours
Eugene Mayevski



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