crc32 of a binary file

[ShaneDonn]

Hi,

Can someone please let me know how I would go about getting a crc32 checksum in labview of a binary file?

Thanks & Regards,

Don1.

[Coq_Rouge]

This is not a new question in this forum. Do a search for crc32. You will find many hits. Remember some are quite old. Check the date and year before posting 😉

[smercurio_fc]

Have you tried a search? That would have taken all of five seconds to enter in the search bar.

[Jandy]

Telling a user to search is not useful. And looks especially dumb when it is on a google result. Just don’t post if yo don’t provide an answer.

[arteitle]

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@Jandy wrote:

Telling a user to search is not useful. And looks especially dumb when it is on a google result. Just don’t post if yo don’t provide an answer.

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How is that not useful? If they search they'll find the answer with the minimum amount of effort. What looks dumb to me is replying to a nine-year-old thread to complain about encouraging searching before posting.

[Jandy]

Telling a user to search is not useful. And looks bad when it appears on a google result. Please don’t post if you don’t provide an answer.

[billko]

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@Jandy wrote:

Telling a user to search is not useful. And looks bad when it appears on a google result. Please don’t post if you don’t provide an answer.

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Okay, let's put this bluntly.  When someone expects someone else to do the legwork they should have done before - i.e., use Google first - you tell them to do that first, because that's what you did to find the answer.

[billko]

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@Jandy wrote:

Telling a user to search is not useful. And looks bad when it appears on a google result. Please don’t post if you don’t provide an answer.

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Oh, and did you find the answer by Googling?  (Better say, "no!")

[wiebe@CARYA]

What is the purpose of the CRC32? Just validation?

Why not use MD5? There's an OOTB VI for getting a file's MD5... Not technically a CRC, but probably works even better.

[crossrulz]

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wiebe@CARYA wrote:

Why not use MD5? There's an OOTB VI for getting a file's MD5... Not technically a CRC, but probably works even better.

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In my experience, they work the same as long as your file stays under 4GB (the limit of the CRC32 before getting a repeat answer).  It would be interesting to do a performance comparison...