This paper explains why standards are important for cyber security, specifically in the area of electronic identification and trust services providers. A number of challenges associated with the definition and deployment of standards in the area of cyber security are discussed. This is followed by a brief overview of several key EU initiatives in this area and a number of ENISA recommendations. The paper also discusses concrete standardisation activities associated with electronic IDs and trust service providers, providing an overview of standards developed under the mandate m460 from the European Commission and others, related to eIDAS Regulation. It concludes with a proposal of a standard on cryptographic suites for electronic signatures and infrastructures, put forward by ENISA and related to the ETSI TS 119 312.