On 01/-10/-28163 02:59 PM, geremy condra wrote:
On Thu, Jan 20, 2011 at 4:03 PM, SANKAR .<shankar...@gmail.com> wrote:
Hi There,
I am looking for buitin function to calculate 16 bit checksum values of the
lines in text file using python.
I could find one for 32 bit but not for 16 bit. Can some one help me?
Google's your friend.
http://efreedom.com/Question/1-1767910/Checksum-Udp-Calculation-Python
Geremy Condra
There are at least 3 commonly used checksum algorithms that give 16bit
results. Two of them are CRC's, with different polynomials. And the
third is the one's complement that Geremy posted the link to, used in
tcp/ip traffic.
Try http://bytes.com/topic/python/answers/27677-crc-16-a
or
http://bytes.com/topic/python/insights/887357-python-check-crc-frame-crc-16-ccitt
The latter is likely to be extremely slow.
DaveA
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