(IOTP, Formerly "Open Trading Protocol",
OTP) A specification that provides an interoperable framework
for Internet commerce. It is optimised for the case where the
buyer and the merchant do not have a prior acquaintance and is
payment system independent. It will be able to encapsulate
and support payment systems such as
SET, Mondex,
CyberCash's CyberCoin, DigiCash's
e-cash, GeldKarte, etc.
IOTP is able to handle cases where such merchant roles as the
shopping site, the payment handler, the deliverer of goods or
services, and the provider of customer support are performed
by different Internet sites.
The IOTP specification is maintained by the
IETF Internet Open Trading Protocol.
http://otp.org/.