OpenSAML user discussion

[Brent Putman <>]

Most likely you are corrupting the signature when you serialize it to, and/or when you read it back in from,  a file.  Any added whitespace, pretty printing, etc. will break the signature.  You might want to try the XMLHelper writeNode function.

Mattias Jonsson wrote:

Hi!

 

I'm a beginner to XML signing and I have some problem to get it work.

 

My test setup:

 

1. I have singed an Assertion and generated the XML file

2. I parse the XML file and try to validate the signature of the Assertion object

 

I get a ValidationException when I try to validate the Assertion:

 

org.opensaml.xml.validation.ValidationException: Signature did not validate against the credential's key

    at org.opensaml.xml.signature.SignatureValidator.validate(SignatureValidator.java:78)

    ....

 

Anyone that has a fully working example of the use-case?

 

SAMLObject => Sign => Generate XML file => Read XML file => Validate signature on SAMLObject

 

Regards,

Mattias