Calculating Checksum - Tilted Forum Project Discussion Community

tornadored · 05-01-2005, 09:03 AM

Hi everyone,

For my network design course, we have been assigned a worksheet for Error Detection. One of the questions is "Calculate a two digit decimal checksum and a two digital decimal CRC for the following:"
32 28 93 86 8 54 95

Does anyone have any experience with this? I'm definately not a numbers man, and the information that was given to us with the worksheet is not very helpful.

Thanks alot.

Dragonlich · 05-01-2005, 10:52 AM

you did google for "checksum algorithm", didn't you?

The basic idea of a checksum (as you may already know) is to create a (sufficiently) unique numerical value for a certain string of characters. That way, you can send a short checksum with a large file, and easily verify if the large file (=string) is correct.

I *think* a CRC does pretty much the same, but I'm no expert...

I've found <a href="http://www.flounder.com/checksum.htm">this page</a>, which may or may not be what you need. No promises.

//added info

By the way, shouldn't this be in tilted programming?

05-01-2005, 09:03 AM	#1 (permalink)
tornadored Tilted Location: OH-IO	Calculating Checksum Hi everyone, For my network design course, we have been assigned a worksheet for Error Detection. One of the questions is "Calculate a two digit decimal checksum and a two digital decimal CRC for the following:" 32 28 93 86 8 54 95 Does anyone have any experience with this? I'm definately not a numbers man, and the information that was given to us with the worksheet is not very helpful. Thanks alot.

05-01-2005, 10:52 AM	#2 (permalink)
Dragonlich 42, baby! Location: The Netherlands	you did google for "checksum algorithm", didn't you? The basic idea of a checksum (as you may already know) is to create a (sufficiently) unique numerical value for a certain string of characters. That way, you can send a short checksum with a large file, and easily verify if the large file (=string) is correct. I think a CRC does pretty much the same, but I'm no expert... I've found <a href="http://www.flounder.com/checksum.htm">this page</a>, which may or may not be what you need. No promises. //added info By the way, shouldn't this be in tilted programming? Last edited by Dragonlich; 05-01-2005 at 10:57 AM..