15: Security in DetailPremierWave® EN Embedded System on Module User Guide 131Steel Belted RADIUSSteel Belted RADIUS is a commercial RADIUS server from Juniper Networks that provides a GUIadministration interface. It also provides a certificate request and self-signed certificate generator.The self-signed certificate has extension .sbrpvk and is in the PKCS12 format. OpenSSL canconvert this into a PEM format certificate and key:openssl pkcs12 -in sbr_certkey.sbrpvk -nodes -out sbr_certkey.pemThe sbr_certkey.pem file contains both certificate and key. If loading the SBR certificate intoPremierWave EN system on module as an authority, you will need to edit it:1. Open the file in any plain text editor.2. Delete all info before "----- BEGIN CERTIFICATE-----" and after "----- ENDCERTIFICATE-----", and then save as sbr_cert.pem.SBR accepts trusted-root certificates in the DER format. Again, OpenSSL can convert any formatinto DER:openssl x509 -inform pem -in mp_cert.pem -outform der -out mp_cert.derNote: With SBR, when the identity information includes special characters such asdashes and periods, SBR changes the format it uses to store these strings and becomesincompatible with the current PremierWave EN release. Support may be added for thisand other formats in future releases.Free RADIUSFree RADIUS is another versatile Linux open-source RADIUS server.