Opc.Ua.CertificateValidator.FindAuthorityKeyIdentifier C# (CSharp) Method

        private X509AuthorityKeyIdentifierExtension FindAuthorityKeyIdentifier(X509Certificate2 certificate)
        {
            for (int ii = 0; ii < certificate.Extensions.Count; ii++)
            {
                X509Extension extension = certificate.Extensions[ii];

                switch (extension.Oid.Value)
                {
                    case X509AuthorityKeyIdentifierExtension.AuthorityKeyIdentifierOid:
                    case X509AuthorityKeyIdentifierExtension.AuthorityKeyIdentifier2Oid:
                        {
                            return new X509AuthorityKeyIdentifierExtension(extension, extension.Critical);
                        }
                }
            }

            return null;
        }