Network Working Group D. Eastlake
Request for Comments: 3504 Motorola
Category: Informational March 2003

Internet Open Trading Protocol (IOTP)
Version 1, Errata

Status of this Memo

This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (2003). All Rights Reserved.

Abstract

Since the publication of the RFCs specifying Version 1.0 of the
Internet Open Trading Protocol (IOTP), some errors have been noted.
This informational document lists these errors and provides
corrections for them.

Table of Contents

1. IntrodUCtion.................................................... 2
2. DTD Errata...................................................... 2
2.1 PackagedContent Element..................................... 2
2.2 The Element called Attribute................................ 3
3. Other Errata.................................................... 3
3.1 Re: Combining Authentication Transactions with other
Transactions................................................ 3
3.2 Type attribute of Element called Attribute.................. 3
4. Security Considerations......................................... 4
5. References...................................................... 4
6. Acknowledgements................................................ 4
7. Author's Address................................................ 5
8. Full Copyright Statement........................................ 6

1. Introduction

The Internet Open Trading Protocol (IOTP), Version 1.0, is specified
in [RFC2801, 2802, 2803]. It provides a payment system independent
framework for Internet commerce oriented to consumer to business
transactions. It provides mechanism for different portions of the
business function, such as fulfillment or payment handling, to be
distributed or outsourced. It does not require a prior relationship
between the consumer and business.

Several errors have been noted in the IOTP v1.0 specification,
particularly RFC2801, which was the largest RFCever issued. These
are listed, with their fix, in this document.

2. DTD Errata

2.1 PackagedContent Element

Attribute types are swapped.

OLD/INCORRECT:
!ELEMENT PackagedContent (#PCDATA) >
<!ATTLIST PackagedContent
Name CDATA #IMPLIED
Content NMTOKEN "PCDATA"
Transform (NONEBASE64) "NONE" >

NEW/CORRECT:
<!ELEMENT PackagedContent (#PCDATA) >
<!ATTLIST PackagedContent
Name NMTOKEN #IMPLIED
Content CDATA "PCDATA"
Transform (NONEBASE64) "NONE" >

2.2 The Element called Attribute

Incorrect element content specification syntax.

OLD/INCORRECT:
<!ELEMENT Attribute ( ANY ) >
<!ATTLIST Attribute
type NMTOKEN #REQUIRED
critical ( true false ) #REQUIRED
>

NEW/CORRECT
<!ELEMENT Attribute ANY >
<!ATTLIST Attribute
type NMTOKEN #REQUIRED
critical ( true false ) #REQUIRED
>

3. Other Errata

3.1 Re: Combining Authentication Transactions with other Transactions

Section 9.1.13. page 234, restarted->continued:

OLD/INCORRECT:
if the Authentication transaction is successful, then the original
IOTP Transaction is restarted

NEW/CORRECT:
if the Authentication transaction is successful, then the original
IOTP Transaction is continued

3.2 Type attribute of Element called Attribute

Section 7.19.1, Page 150, insufficient list of signature types:

OLD/INCORRECT:
There must be one and only one Attribute Element that contains a
Type attribute with a value of IOTP Signature Type and with
content set to either: OfferResponse, PaymentResponse,
DeliveryResponse, AuthenticationRequest, AuthenticationResponse,
PingReq or PingResponse; depending on the type of the signature.

NEW/CORRECT:
There must be one and only one Attribute Element that contains a
Type attribute with a value of IOTP Signature Type and with
content set to either: OfferResponse, PaymentResponse,
DeliveryResponse, AuthenticationRequest, AuthenticationResponse,
PingReq, PingResponse, AuthenticationStatus, InquiryRequest, or
InquiryResponse; depending on the type of the signature.

AND a similar change extending the list of values in Section 12.1,
Page 262.

And at Section 6.1.2, Page 82, add the following:

AuthenticationStatus any role

InquiryRequest any role

InquiryResponse any role

4. Security Considerations

The errata listed herein are not particularly security related.
Never the less, incorrect implementations due to uncorrected errors
in the specification may compromise security.

5. References

[RFC2801] Burdett, D., "Internet Open Trading Protocol - IOTP
Version 1.0", RFC2801, April 2000.

[RFC2802] Davidson, K. and Y. Kawatsura, "Digital Signatures for the
v1.0 Internet Open Trading Protocol (IOTP)", RFC2802,
April 2000.

[RFC2803] Maruyama, H., Tamura, K. and N. Uramoto, "Digest Values
for DOM (DOMHASH)", RFC2803, April 2000.

6. Acknowledgements

Thanks to the following people for reporting or responding to reports
of these errata:

Harald Barrera Dubois, Yoshiaki Kawatsura, Chun Ouyang

7. Author's Address

Donald E. Eastlake 3rd
Motorola
155 Beaver Street
Milford, MA 01757 USA

Phone: +1-508-851-8280 (w)
+1-508-634-2066 (h)
EMail: Donald.Eastlake@motorola.com

8. Full Copyright Statement

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