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 -- ------------------------------------------------------------------------- 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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