3 replies to this topic

[shiranraviv]

Hi,
I want to create a function which will tell if me the last packet i got from the server is identical to the one i got now.
I thought about put in an array and just compare the two but it will be very inefficient.
So, a checksum or a signature implementation will ( i think ...) do the work.
But how do i make a checksum for let say a const char * data type?

Any help will be thankful!

[dcs]

A simple checksum is just a sum. Bytes are bytes; add them.

[marwex89]

Well, there are actually quite a lot of ways to ensure proper communication. You gotta decide what's good enough for you, maybe a simple sum will be fine. Should probably start by reading this: Checksum - Wikipedia, the free encyclopedia

[TkTech]

I'm kind of confused - if you're talking about packet integrity - TCP does that for you.