Table of Contents

Foreword
1 Scope
2 Normative references
3 Abbreviations
4 Properties of the system specified
  4.1 Confidentiality
  4.2 Algorithm specification
5 The confidentiality mechanism
  5.1 Description of operation
  5.2 Transmission encryption method
  5.3 Procedure for use of the system
6 Encryption of MLP channel
Annex A (normative): Encryption algorithms and their
        parameters
    A.1 BARAS
    A.2 IDEA
    A.3 FEAL
    A.4 DES
Annex B (informative): Encryption and decryption for
        2 by B channels
Annex C (informative): Audio-visual privacy
        communication procedure
History

Abstract

This ETS describes the confidentiality part of a privacy system suitable for the use in narrowband audiovisual services conforming with ITU-T H.221, H.230 and H.242.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SEC
Supersedes	PRETS 300 840 : AUG 97