04 June 2016, 13:38 | #1 |
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Is MD5 enough for my personal collection?
Hi I am using MD5 for my personal collection . I have some unique dump files . I am copying them to external harddrives for backup purpose . But before I copy them sometimes problems happening on my main machine like shut downs , freezes , etc . So basically I don't have any security concerns . My whole question about data corruption . Am I safe ? Is MD5 is enough for data corruption . Even after shut downs if MD5 hashes same , those files will be corrupt ? Thanks for the all answers .
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04 June 2016, 17:42 | #2 |
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Yes, it's safe.
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04 June 2016, 17:46 | #3 |
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Still some of the people saying MD5 is weak . You need SHA-2(512) or SHA-3(512)
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04 June 2016, 18:19 | #4 |
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04 June 2016, 18:21 | #5 | |
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Quote:
(aren't collisions just non-unique matches for both random or caused errors?) |
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04 June 2016, 20:12 | #6 |
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MD5 is more than adequate for confirming data integrity, given that there's no-one secretly replacing files on your backup media with different files calculated to have the same MD5 checksums. In other words, the chance of two of your different files having the same MD5 checksum is vanishingly small.
Last edited by mark_k; 04 June 2016 at 22:34. |
04 June 2016, 20:42 | #7 |
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If you really want protection for critical files, use one of the PAR utilities to create a parity file set. The bigger your parity file set, the greater the amount of damage you can recover from.
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06 June 2016, 19:51 | #8 |
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06 June 2016, 22:24 | #9 |
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I primarily use QuickPar. There is also a newer program called MultiPar.
These are Windows programs. |
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