TLSInformation and X509Certificate
The TLSInformation and X509Certificate UDR types are part of the securityInformation UDR field that contains information about the certificate chain and also which protocol and cipher suite are used. The X509Certificate UDR type contains information about the fields corresponding to the java.security.cert.X509Certificate.
The securityInformation UDR is part of all the other UDR types as part of the Websocket UDRs.
The TLSInformation and X509Certificate UDR types with their UDR Fields