ECB PUBLIC Questions and Answers Question: Is it correct that the only Certification Authorities (CA) from which T2 will accept the signature on BAH will be those of the NSPs? Would that be possible to envisage a specific signature solution independent from its NSP? Answer: Correct. The only Certification Authorities (CA) from which T2 will accept the signature on BAH will be the CA of the NSP(s) selected by NCBs/participants It will not be possible for NCBs/participants to envisage a specific solution (that is independent from their NSPs) to sign their messages.
They have to use the certificates issued by the NSP that they chose/will choose among the two awarded out of the Concession Contract. This is a provision of the Concession Contract, which is publicly available. 12 www.ecb.europa.eu ©