Re: Cyclic redundancy Checks (was: Checksums)

1998-11-10 Thread Tuukka Toivonen
On Mon, 9 Nov 1998, Bryan Scaringe wrote: a document called "Painless guide to Cyclic Redundancy Checks" (or Check(ing), I can't recall). It should "A PAINLESS GUIDE TO CRC ERROR DETECTION ALGORITHMS" ftp://ftp.rocksoft.com/clients/rocksoft/papers/crc_v3.txt Thanks! -- | Tuukka Toivonen

Re: Checksums

1998-11-09 Thread Tuukka Toivonen
On Sat, 7 Nov 1998, david wrote: Can someone explain how to compute checksums and how do they work ? Download GZIP and deflate compression specifications. They explain CRC (32-bit if my memory serves) and sample implementation. It was very easy to understand, even I did. ftp://x2ftp.oulu.fi

Re: Checksums

1998-11-09 Thread david
Tuukka Toivonen wrote: Download GZIP and deflate compression specifications. They explain CRC (32-bit if my memory serves) and sample implementation. It was very easy to understand, even I did. I don't find it so easy ... : Spending 5 minutes reading the crc code, all i understood is that

Cyclic redundancy Checks (was: Checksums)

1998-11-09 Thread Bryan Scaringe
Though you're original post mentioned checksums, the thread that has developed seems to be discussing Cyclic Redundancy Checks, which are quite different. If you really want to understand CRC's, the only thing which I have ever run across that explains them well was a document called "Pai

Re: Checksums

1998-11-08 Thread Glynn Clements
James wrote: -It depends entirely upon what sort of checksum you wish to compute. how does the Mod 11 one work? i forgot, you associate weights with each digit or something and add it all up and mod 11, but i get confused... This sounds about right. I don't recall what the weights are,

Checksums

1998-11-07 Thread david
Hello, Can someone explain how to compute checksums and how do they work ? This is for a program i'm working on ( http://www.imaginet.fr/~dramboz/jview) : the program can create databases which are composed of blocks with the same size. I'd like to add a checksum to each block to see