A capabilities system in Scheme was done in the 90s, though AFAIK it is now dead. Still the paper describing it is worth reading and may give you some inspirati

A capabilities system in Scheme was done in the 90s, though AFAIK it is now dead. Still the paper describing it is worth reading and may give you some inspiration: http://fare.tunes.org/tmp/emergent/secureos.htm http://fare.tunes.org/tmp/emergent/secureos.htm