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About Checksum.....

albertlee
in Computer Science

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A value that is computed and that depends on the contents of a set of data. Checksums are stored or transmitted with the data. The checksum is used to detect if the data has been altered during transmission or when being stored and retrieved. Receiving programs recompute the checksum to compare with the checksum sent or stored with the data. Checksums may be more than one digit. They are not always the result of addition but may be the result of one or more computations involving addition, subtraction, multiplication, or division.

 

IE - It checks the sum (or other calculation) of a set of data before AND after it has been transmitted either in a program internally or from one source to another. If the figures are different then a checksum error is returned.

  • Author

I have tried fsum, which is somehow a calculator for checksum.....

 

it calculates a few ways, like md5, md6, and many more.......

 

what are they?

 

In java, is there any function that calulates the checksum?

 

Albert

  • Author

Any body can explain?

 

those are really the keys that helps me installing linux....

 

Albert

You've been told before: not everyone is here every minute of every hour of every day.

 

Patience.

Any body can explain?

 

those are really the keys that helps me installing linux....

 

Albert

That doesn't even make sense. What are you asking?

The guy wants to know how to check his sum. He downloaded his program, along with his checksum.

 

Now how does he compare the checksum he downloaded with the program?

  • Author

Ok, let me speak more clearly, I know how to use the programs......

 

and the reason I ask, again, I have tried fsum, which is somehow a calculator for checksum.....

 

it calculates a few ways, like md5, md6, and many more.......

 

what are they?

 

In java, is there any function that calulates the checksum?

 

because that was how I fix my problem on installing Mandrake.....

 

Albert

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