https://app.kbone.net/vault/rfc/docid/2117
RFC1898: CyberCash Credit Card Protocol Version 0.8
Network Working Group D. Eastlake 3rd Request for Comments: 1898 CyberCash Category: Informational B. Boesch CyberCash ...
https://app.kbone.net/vault/rfc/docid/4230
RFC3867: Payment Application Programmers Interface (API) for v1.0 Internet Open Trading Protocol (IOTP)
Network Working Group Y. Kawatsura Request for Comments: 3867 Hitachi Category: Informational M. Hiroya Technoinfo Service ...