algorithm URI was invalid: http://www.w3.org/2001/04/xmlenc#aes128-cbc

[Joy Veronneau]

Hi, 

This morning I upgraded our Shibboleth IDP from version 2.3.3 to version 2.4. I am seeing quite a few of these errors (below). Most of our SPs are working fine but there seem to be 2 that are having this issue, maybe Maxient and Atlas Illiad.

Any ideas what might be causing this and how to fix it?

Thanks!

Joy

13:24:03.463 - ERROR [org.opensaml.xml.encryption.Encrypter:649] - Could not generate encryption key, algorithm URI was invalid: http://www.w3.org/2001/04/xmlenc#aes128-cbc
13:24:03.467 - ERROR [edu.internet2.middleware.shibboleth.idp.profile.saml2.AbstractSAML2ProfileHandler:294] - Unable to encrypt assertion
org.opensaml.xml.encryption.EncryptionException: Could not generate encryption key, algorithm URI was invalid: http://www.w3.org/2001/04/xmlenc#aes128-cbc