OpenSAML user discussion

[Brent Putman <>]

On 8/16/10 10:12 AM, Fabrizio Paccagnella wrote:


>> Hi, I tried to sign an assertion following this tutorial
>> https://spaces.internet2.edu/display/OpenSAML/OSTwoUserManJavaDSIG
>>
>> However when I try to sign the assertion I get this exception:
>> org.apache.xml.security.signature.XMLSignatureException: object not
>> initialized for signature or verification



You get that error when you don't supply a key to Apache xmlsec.  I
didn't see a call to signature.setSigningCredential in your code.  I
suppose b/c it's omitted from that particular example on the wiki.  (It
is present on the example above that one).  I have fixed the wiki.
Basically you just need to call
"signature.setSigningCredential(signingCredential)".

That should solve your problem, but if not, let me know.

--Brent