From: Holger Kiehl <Holger.Kiehl@dwd.de>
To: linux-c-programming@vger.kernel.org
Subject: Question about checksums
Date: Thu, 21 Aug 2003 12:48:05 +0000 (GMT) [thread overview]
Message-ID: <Pine.LNX.4.44.0308211247260.14102-100000@praktifix.dwd.de> (raw)
Hello
Lets me first start to explain what I try to do. I have a big ascii
configuration file (appr. 500KB), which I split up in many smaller
jobs each approx. 180 Bytes (average, minimum is 50 maximum 5120 Bytes).
For each job I would like to generate a unique number, so that I can
refer to these jobs by their individual numbers.
What is the best way to generate a checksum from each job? Also I would
like that the checksums are always the same, when you calculate it
on a different host with different CPU and OS but using the same
job data.
I think md5sum could do the job but, think it is a bit of an overkill
to generate a 128 Bit checksum for such small input data. Also storing
such huge numbers is a bit of a pain. Would a 32 or 64 Bit checksum
sufficient, or would I be running into problems when these are to
short?
Regards,
Holger
next reply other threads:[~2003-08-21 12:48 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-21 12:48 Holger Kiehl [this message]
2003-08-21 13:20 ` Question about checksums Luciano Miguel Ferreira Rocha
2003-08-21 16:36 ` Holger Kiehl
2003-08-21 17:28 ` Jeff Woods
2003-08-22 20:18 ` Holger Kiehl
2003-08-23 20:31 ` printf(), aligning fields J.
2003-08-24 0:07 ` Glynn Clements
2003-08-24 1:05 ` Stephen Satchell
2003-08-21 18:19 ` Question about checksums Luciano Miguel Ferreira Rocha
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