Change the default message digest algorithm from SHA to MD5 only if absolutely necessary. Edit the installver_wbi.bat file or the installver_wbi.sh file to make the change. Changing the algorithm invalidates the SHA-based checksums in the product bill of materials. For this reason, verify the product files before changing the message digest algorithm.
Install the product before attempting to change the default message digest algorithm from SHA to MD5.
The default message digest algorithm is one of the secure hash algorithms (SHA) that are part of the Secure Hash Standard (SHS) from the National Institute of Standards and Technology (NIST). SHA-1 is the standard hash function of the U.S. government. For more information, see the Federal Information Processing Standards (FIPS) Web page at http://csrc.nist.gov/publications/fips/index.html, and view the publication FIPS 180-2.
Also available is the older MD5 message digest algorithm. MD5 is a deprecated type of message algorithm that is not as secure as SHA and is provided only for backward compatibility.
This topic describes changing the default message digest algorithm. You must edit the installver_wbi.bat file or the installver_wbi.sh file to change the algorithm.
-Dchecksum.type=MD5The default value is:
-Dchecksum.type=SHA
Go to Handling out-of-memory situations to learn more about the installver_wbi command.
Last updated: Tue Feb 21 17:47:11 2006
(c) Copyright IBM Corporation 2005.
This information center is powered by Eclipse technology (http://www.eclipse.org)