scope:

The present document specifies procedures for establishing whether an electronic signature is technically valid based on the considerations specified in the present document and the validation constraints are applied to the verification procedures. These constraints may be specified as part of a formal signature policy.

It is outside the scope of the present specification as to whether a signature is accepted by the relying party and specifically if it bears legal validity.

NOTE 1: Factors outside the scope of the present document, such as delays in reporting revocations or unintended data errors in a document, may impact on the signature and so may need to be taken into account in considering the technical validity of a signature in case of dispute.

NOTE 2: The present document makes use of certain verbal forms (e.g. may, shall, shall not and should) as key words to signify requirements, conforming to ETSI Drafting Rules, clause 14a [i.8].