> This isn't a 64-bit CRC. It's two independent 32-bit CRCs, one done > on just the odd-numbered bytes and one on just the even-numbered bytes > of the datastream. That's hardly any stronger than a single 32-bit CRC; I believe that the longer data the more chance to get same CRC/hash for different data sets (if data length > CRC/hash length). Or am I wrong? Having no crc64 implementation (see below) I decided to use 2 CRC32 instead of one - it looked better, without any additional cost (record header is 8 byte aligned anyway, on, mmm, most platform). > it's certainly not what I thought we had agreed to implement. I've asked if anyone can send crc64 impl to me and got only one from Nathan Myers. Unfortunately, SWISS-PROT impl assumes that long long is 8 bytes - is it portable? Vadim ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
