[Uri-review] URI scheme registration request

[John Wason <[e-mail]>]

Scheme Name:

The requested scheme improvement is for use with Robot Raconteur, a 
communication framework for robotics and automation. It will have the 
basic form "rr://" for unsecured transport and "rrs://" for transports 
secured using StartTLS channel upgrade.  Because Robot Raconteur is 
capable of running over multiple transports, the scheme will also need 
to specify which transport to use.  This will be accomplished using the 
"rr" "plus" /transport type/. Currently in use transport schemes are:

rr://foo - Cloud Transport (always secure)
rr+cloud://foo - Cloud Transport (always secure)
rr+tcp://foo - TCP Transport
rrs+tcp://foo - TCP secure transport
rr+usb://localhost - USB transport
rr+pci://localhost - PCI/PCIe transport

Possible schemes for future use with websockets (currently not used)
rr+ws://foo
rrs+ws://foo
rr+wss://foo
rrs+wss://foo

Status:
Provisional

Application/protocols that use this scheme name:
None

Contact:
John Wason
Wason Technology, LLC
PO Box 669
Tuxedo, NY 10987
[phone]
[e-mail]

Change controller:
John Wason
Wason Technology, LLC
PO Box 669
Tuxedo, NY 10987
[phone]
[e-mail]

Reference:
Robot Raconteur is currently a proprietary software project.  All 
documentation can be found at http://robotraconteur.com/documentation .  
It currently has port 48653 officially registered for TCP and UDP use 
along with the host names "robotraconteur" and "rr-discovery".  
Standardization is of interest however the exact method and commercial 
implications are still being investigated.

Scheme Syntax:
See "Scheme Name"

Scheme semantics:
Each scheme will point to a host (and possibly port).  The host will be 
"localhost" for the hardware based protocols.

Definition of Operations:
Asynchronous message stream using binary protocol.

Context of Use:
Robot Raconteur communication protocol over port 48653 (where applicable).

Internationalization and Character Encoding:
All strings in the message stream are encoded as UTF-8 and do not have 
any security implications.  The only part of the URI expecting to 
contain international characters are hostnames registered through DNS.

Security considerations:
Robot Raconteur is mainly used for communication over the local network 
except for the cloud transport.  All transports over the internet use 
TLS or DTLS security using certificates matched to each node through a 
UUID unless the user specifically uses unsecured TCP.  Nodes can be 
secured using password and certificate based authentication. The 
transport itself is immune to parsing attacks as it uses length prefixes 
for all data fields.

-- 
John Wason, Ph.D.
Wason Technology, LLC
PO Box 669
Tuxedo, NY 10987
[phone]
[e-mail]