Acronyms and Terminology

While the author does have the intention to use as few acronyms as possible, he suspects that he may at times fall victim to acronym temptation. Therefore, this section will serve as a repository of the different acronyms used through the text.

ACSE

Association Control Service Element; an Application Service Element that manages associations.

ANSI

American National Standards Institute.

CCITT

Comité Consultatif International Télégraphique et Téléphonique which loosely translates into International Consultative Committee for Telegraphy and Telephony.

CD

Committee Draft. A Committee Draft is the next step (in ISO) from a Working Draft. Used to be known as a Draft Proposal (DP).

CLNP

Connectionless Network Protocol.

DEA

Data Encryption Algorithm.

DIS

Draft International Standard. The next step for a CD (or DP) on its way to becoming an ISO IS.

DP

Draft Proposal. This term is currently obsolete and the acronym CD (Committee Draft) is used instead.

ECMA

European Computer Manufacturers Association.

EDI

Electronic Data Interchange.

EESP

End System to End System Security Protocol.

ESO

External Security Object.

ETSI

European Telecommunications Standardization Institute.

EWOS

European Workshop for Open Systems.

FTAM

File Transfer Access Method.

GSS-API

Generic Security Service Application Program Interface.

GULS

Generic Upper Layer Security service element.

IEC

International Electrotechnical Commission.

IEEE

Institute for Electrical and Electronics Engineers.

IETF

Internet Enginnering Task Force.

IS

International Standard. The final incarnation of an ISO document.

ISO

International Organization for Standardization.

JTC1

Joint (ISO and IEC) Technical committee 1.

MHS

Message Handling Systems. The title of a joint (CCITT-ISO) multipart standard known as the X.400-X.420 CCITT Recommendations or as ISO 10021, parts 1-7. The ISO equivalent of MHS is Message Oriented Text Interchange System.

MOTIS

See MHS above.

NLSP

Network Layer Security Protocol; the OSI protocol that subsumes SP3.

NWI

New Work Item. Before an ISO committee officially starts work towards a standard, it needs to propose (and be granted approval of) a new work item.

ODA

Office Document Architecture.

OSI

Open Systems Interconnection.

PDAD

Proposed Draft Addendum.

PDU

Protocol Data Unit.

PIN

Person Identification Number.

Q

Question, the CCITT equivalent of NWI.

SC

Subcommittee.

SG

Study Group; CCITT is organized into 15 Study Groups.

SDNS

Secure Data Network System.

SILS

Standards for Interoperable Local Network Security.

SP3

Security Protocol for layer three; a protocol in the SDNS series.

SP4

Security Protocol for layer four; a protocol in the SDNS series.

TLSP

Transport Layer Security Protocol.

ULSM

OSI Upper Layer Security Model.

WD

Working Draft. The earliest and most immature instance of a document in the ISO standardization process.

WG

Working Group.