Ah, thanks everyone. Now that you tell me this, i guess "Cyclic Redundancy" is how a programmer would describe an old scratched record skipping on a turntable. I wiped it on my shirt and it worked ...
You send a file, but how do you know it arrived intact? In other words, how do you know that it didn’t get cut off, garbled, or changed somehow? Simplistically, you could just add up all the bytes in ...