Hi Fons,
Okay, thanks.
Regards,
Damon
Fons Rademakers wrote:
> Hi Damon,
>
> we use probably a different set of hash values than what is used in
> md5sum. I'll check and try to make TMD5 return the same value.
>
> Cheers, Fons.
>
>
>
> On Thu, 2004-07-08 at 19:46, Damon Spayde wrote:
>
>>I would like to use the TMD5 ROOT class to calculate MD5 checksums of
>>certain files. However, I have found that MD5 checksums calculated with
>>TMD5 are not the same as those calculated with other methods, e.g.
>>'md5sum' on Linux machines. Below is the output of a ROOT script
>>(attached as file md5test.cxx) that calculates the MD5 checksum of a
>>zero-length string with TMD5 and the output from md5sum:
>>
>>[spayde@uiuc-gzero blinding]$ root -b md5test.cxx
>> *******************************************
>> * *
>> * W E L C O M E to R O O T *
>> * *
>> * Version 4.00/04 5 June 2004 *
>> * *
>> * You are welcome to visit our Web site *
>> * http://root.cern.ch *
>> * *
>> *******************************************
>>
>>Compiled for linux with thread support.
>>
>>CINT/ROOT C/C++ Interpreter version 5.15.133, Apr 18 2004
>>Type ? for help. Commands must be C++ statements.
>>Enclose multiple statements between { }.
>>root [0]
>>Processing md5test.cxx...
>>MD5 Check Sum of Zero Length String:
>>227b7f48d21283f63bc9bbc15b44ea1a
>>root [1] .!echo -n "" | md5sum
>>d41d8cd98f00b204e9800998ecf8427e -
>>root [2]
>>
>>I get similar results (the MD5 sums do not agree between the two
>>methods) when using finite length strings or files. I am running ROOT
>>version 4.00/04 on a RedHat Enterprise Linux 3 system. Any help would
>>be greatly appreciated.
>>
>> Regards,
>> Damon
--
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Damon Spayde
University of Illinois at Urbana-Champaign
Jefferson Lab E-mail: spayde@jlab.org
Counting House Cubicle 16 Phone: (757) 269-5192
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