OPC Unified Architecture – Part 12: Discovery and Global Services
7.8.4.15 EccCurve25519ApplicationCertificateType
This type is used to describe Certificates intended for use as an ApplicationInstanceCertificate. They shall have an ECC curve25519 Public Key. Applications which support the ECC curve25519 curveprofiles (see OPC 10000-7) shall have a Certificate of this type. This type is defined in Table 60.