Genz2....not sure, but there was a time when Intel got the ETSpro, years ago. I believe Wave has changed this and delivers ETSL to Intel. Key backup and recovery is ALSO necessary for stand alone solutions. IMO ETSL can do this on local drives or USBs, but NOT on a network server. For enterprise wide key management you need ETSpro and EKM server.
Thats just a guess, FWIW
BR
ISPRO