Robust and fast checksum algorithm?

Posted by bene on Stack Overflow See other posts from Stack Overflow or by bene
Published on 2008-09-23T18:48:56Z Indexed on 2010/03/25 0:53 UTC
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algorithm

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images

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checksum

Which checksum algorithm can you recommend in the following use case?

I want to generate checksums of small JPEG files (~8 kB each) to check if the content changed. Using the filesystem's date modified is unfortunately not an option.
The checksum need not be cryptographically strong but it should robustly indicate changes of any size.

The second criterion is speed since it should be possible to process at least hundreds of images per second (on a modern CPU).

The calculation will be done on a server with several clients. The clients send the images over Gigabit TCP to the server. So there's no disk I/O as bottleneck.

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