4 Symbols and Abbreviations
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# 4 Symbols and Abbreviations

The following symbols and abbreviations are used in this Part of the Standard.

ACR

  American College of Radiology

AE

  Application Entity

AES

  Advanced Encryption Standard

ANSI

  American National Standards Institute

CEN TC251

  Comite European de Normalisation-Technical Committee 251-Medical Informatics

CBC

  Cipher Block Chaining

CCIR

  Consultative Committee, International Radio

CN

  Common Name

DES

  Data Encryption Standard

DHCP

  Dynamic Host Configuration Protocol

DICOM

  Digital Imaging and Communications in Medicine

DN

  Distinguished Name

DNS

  Domain Name System

DDNS

  Dynamic Domain Name System

ECMA

  European Computer Manufacturers Association

EDE

  Encrypt-Decrypt-Encrypt

HL7

  Health Level 7

IEC

  International Electrical Commission

IEEE

  Institute of Electrical and Electronics Engineers

IETF

  Internet Engineering Task Force

IOD

  Information Object Definition

ISCL

  Integrated Secure Communication Layer

ISO

  International Standards Organization

JIRA

  Japan Medical Imaging and Radiological Systems Industries Association

LDAP

  Lightweight Directory Access Protocol

LDIF

  LDAP Interchange Format

MAC

  Message Authentication Code

MD-5

  Message Digest - 5

MEDIS-DC

  Medical Information System Development Center

MTU

  Maximum Transmission Unit

NEMA

  National Electrical Manufacturers Association

NTP

  Network Time Protocol

OID

  Object Identifier (analogous to UID)

PDU

  Protocol Data Unit

RDN

  Relative Distinguished Name

RFC

  Request For Comment (used for standards issued by the IETF)

RR

  Resource Record (when used in the context of DNS)

RSA

  Rivest-Shamir-Adleman

SCP

  Service Class Provider

SCU

  Service Class User

SHA

  Secure Hash Algorithm

SNTP

  Simple Network Time Protocol

SOP

  Service-Object Pair

SSH

  Secure Shell

SSL

  Secure Sockets Layer

TLS

  Transport Layer Security

UID

  Unique Identifier

UTC

  Universal Coordinated Time

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