An implementation of a cross platform hash function in C#

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Heya smart friends,

I noticed that .NET hash function can produce different values on different machines.
I need a hash function (for strings) that will produce the same value, no matter what platform it is on, whether it's win xp, vista, 7, 8, server 2k3, 2k8 etc
AND no matter if it's 32 bit or 64 bit (which to my understanding makes a big difference in the hash implementation).

Anyone?

Posted 7-Jan-13 19:34pm

Joezer BH

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2013-01-07T19:55:00

Solution 1

Please check A good cross platform hash function\algorithm[^].

Posted 7-Jan-13 19:55pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

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Joezer BH 8-Jan-13 2:05am

Hi Tadit, the link leads a similar question, HOWEVER, it is unanswered there (or to be exact, there is an incorrect answer there).

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 8-Jan-13 2:14am

Oh I just saw that you have asked that question as well... :P
Have you tried the solution in that link provided by @Kenneth Haugland?

Joezer BH 8-Jan-13 2:25am

Kenneth suggested the .NET solution, which, even though a great hashing, but as I mentioned there, does not produce the same values on different platform.

So, if you need to produce the hash on two different machines, that won't work...

Do you have an idea?

Joezer BH 8-Jan-13 2:36am

Actually Kenneth suggested to use RSA which is not even hashing, it's an enctypt\decrypt .NET implemented algorithm.

**Joezer BH** · Answer 2 · 2013-07-21T23:07:00

Solution 2

Late but still...

What I've used eventually is the built in hashing mechanism of MS SQL Server,
I've had it storing the data anyway, so I figures out, hey, it is central, cross platform, actually its cross whatever you want since I only use one SQL Server in that project.

Cheers

Posted 21-Jul-13 23:07pm

Joezer BH