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Verify Signature and make some validations of a X509Certificate  RSS feed

 
Marcelo Tataje
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Hi everybody, I've been asked to make some validations with a X509Certificate, I've tried to make them by googleing some samples on the web, but no success

I have a Web Application which connects to a Restful Web Service, this Web Service return an XML document which is signed, so it contains a Signature Tag which contains child nodes with an X509Certificate. I've been asked to verify:

1. The signature of the certificate
2. The revocation status of the certificate
3. If the certificate has been issued by a trusted root

The problem is that the only parameter I have is that X509 Certificate data which I convert to X509Certificate java type.

I've found examples of OCSP and Signature validations which I tested in other projects and they always require two certificates: A trusted one and the target.

In my case I have the target which I receive from the Web Service as I menctioned before, but I don't have any other certificate.

So my question is: The validations I mentioned are possible to perform with only one certificate like the one I'm getting from the XML or I need two as a mandatory requirement?

And if I need two certificates, how should they be related?


Maybe it's a dummy question but it's the first time I heard about this time of requirement and I haven't work with certificates too much

Please if somebody could help me I will be grateful. Thanks in advance for any help.


 
It is sorta covered in the JavaRanch Style Guide.
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