Hi Damon, I've fixed the problem, fix is in cvs. Now TMD5 reports the same digest as md5sum. 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 -- Org: CERN, European Laboratory for Particle Physics. Mail: 1211 Geneve 23, Switzerland E-Mail: Fons.Rademakers@cern.ch Phone: +41 22 7679248 WWW: http://www.rademakers.org/fons/ Fax: +41 22 7679480
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