Contents | ||
 | OS/2 and eComStation homepage | |
 | MD5 Message-Digest Algorithm | |
| MD5 Calculation Program | |
| Perform a check with MD5 | |
MD5 Message-Digest Algorithm
In order to ensure that the origin of a downloaded file really is the creator and has not been tampered with by somebody else, a checksum can be calculated over the content of the file, also called fingerprint or message digest.If the creator and the receiver determine the same checksum for a file, using the same checksum algorithm, the file can be considered unmodified. The used algorithm must make sure that the content of a giben file can result only in exact one checksum.
Within the Internet and with the development of compression and encryption algorithms,
MD5 has become a defacto standard for a checksum algorithm. therfore for installation packages
on this website the MD5 checksum is displayed, so that users can check for the intactness
of the packages. Only a check with a PGP Signature Certificate is
even more safe, but requires more effort.
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MD5 Calculation Program
For OS/2 and eComStation, two different ports of MD5 commandline program can be downloaded from hobbes:
Perform a check with MD5
You can perform an MD5 checksum check for a file by executing the MD5 executable with the
filename of the file to check as a parameter. The program will display the checksum that can be compared
with the checksum displayed in the download section for the file on this website.
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