[cap-talk] Capability accounting - meta

[David Hopwood]

Nick Szabo wrote:
> Ian Grigg: 
> 
>>(And, the coins paridigm might be considered to
>>be closer to the caps idea, in they they are
>>handed around and they are their own value /
>>control.  I'm not sure that's a useful notion
>>however, as one could say the same thing about
>>the payment instructions.)
> 
> David Chaum worked on capabilities before he invented
> blinded digital cash.

I didn't know that. Which systems did he work on? Any papers?


Partially answering my own question, I could find references to

  "Implementing Capability Based Protection Using Encryption,"
  D. Chaum and R.S. Fabry, UC Berkeley Memorandum UCB/ERL M78/46,
  July 1978.
  <http://citeseer.ist.psu.edu/context/183206/0>

which doesn't appear to be on-line.

-- 
David Hopwood <david.nospam.hopwood at blueyonder.co.uk>