The Cloud of Secure Element is an open technology detailed by an IETF draft, and which is based on theIETF  RACS protocol,  see draft-urien-core-racs-00.

EtherTrust is a pioneer for the use of secure elements (SE) in the cloud. SEs are hosted by dedicated servers, powered by the RACS protocol.

Applications target payments, access control, transportation, cryptographic providers.

EtherTrust designs several classes of RACS servers. nano servers for the Internet of Things, SME servers, and Corporate servers.