Checksum to detect Duplicted files and Re-named files

Question

Hi all,

I have a clarification regarding Checksum of files.

In my test application, I got the same checksum value for a duplicated file of my original file. Also, when my original file was renamed, the checksum generated was same.

So, can I use the checksum to discard the processing of a duplicated file or a re-named file.

regards, Kings

Answer 1

Well, in general yes. It depends what sort of Checksum you're using though.

Answer 2

Yes, but you should use such checksum algorithm that can be used to generate fingerprints for your files. All checksums are not suitable for this.