Hello everybody. I've been using cc++ libraries without being aware of bugs for several versions now, but needed the CRC32 computation recently. Unfortuantely I got constantly values that differed form those of the other project memebers. When investigating, I found in your corresponding source file that an ethernet compliant CRC32-polynom was used. I found a specification at http://www.geocities.com/SiliconValley/Pines/8659/crc.htm by Ross N. Williams that stated values, that all other members of our group could reproduce, but not cc++ : ---------------> Here is the specification for the CRC-32 algorithm which is reportedly used in PKZip, AUTODIN II, Ethernet, and FDDI. Name : "CRC-32" Width : 32 Poly : 04C11DB7 Init : FFFFFFFF RefIn : True RefOut : True XorOut : FFFFFFFF Check : CBF43926 -----------------<
Check means Checksum when digesting "123456789"
Though the specification states that this would be ethernet too, it differs
from cc++ results. I could reproduce the results of the expamle (AAL-5 - ATM)
with cc++ but the perl, java and other c implementations get different values
for these checks even though the poly you is the same as the one mentioned
above.
Any idea what the reason might be?
Thanx,
Markus
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