[Pki-users] Question about ETSI TS 102 231

My question is the following one: *What is the meaning of http://uri.etsi.org/TrstSvc/eSigDir-1999-93-EC-TrustedList/SvcInfoExt/Roo... ETSI TS 102 231 V3.1.2 * http://uri.etsi.org/TrstSvc/eSigDir-1999-93-EC-TrustedList/SvcInfoExt/Roo... a Root Certification Authority from which a certification path can be Does it mean that if I have a prospective certificate path like this one: - A (root ca) - B (intermediate) - C (end user) Where A is the only one registered in the TSL as a TSPService without thehttp:// uri.etsi.org/TrstSvc/eSigDir-1999-93-EC-TrustedList/SvcInfoExt/RootCA-QCU..., I can't construct a valid certification path for B and C? Is this the right place to make this kind of questions?? Or can you please recommend the right place to me please?? Is there something like a user mailing list or forum for ETSI Technical Specifications or IETF RFCs?? Thank you -- Jaime Hablutzel - RPC 994690880