RHEL4 Shibboleth SP 2.4.3 and SHA256 Signatures

[shibboleth at krugs.org]

Our Federation's SAML2 Metadata recently switched to using SHA256 
for signatures.  Shibboleth SPs on CentOS5 validate these 
signatures fine, but on RHEL4 they are failing.  I can easily see 
how this may be related to an underlying system library in RHEL4 
and thus not a fault of Shibboleth, but I am having trouble coming 
up with the right means to identify the exact root of the problem.

Any tips on what to specifically look at to try and track this down
would be good.  As much as I would like to make everyone update to 
a more recent version of RHEL, I am not sure I can make that happen.

Thanks,
Jeff


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