SIST ISO 17068:2018

INTERNATIONAL ISO
STANDARD 17068
First edition
2017-10
Information and documentation —
Trusted third party repository for
digital records
Information et documentation — Référentiel tiers de confiance pour
les documents d’activité électroniques
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Overview of a TTPR . 3
4.1 Necessity for a TTPR . 3
4.2 Requirements for TTPR trustworthiness . 4
4.3 TTPR components . 5
4.4 Characteristics of a TTPR . 6
5 TTPR services . 7
5.1 General . 7
5.2 Service procedure . 7
5.3 TTPR service agreements . 7
5.3.1 Service level agreement (SLA) . 7
5.3.2 Service agreement items . 8
5.4 TTPR subservices .10
5.4.1 General.10
5.4.2 Acquisition service .11
5.4.3 Repository service .12
5.4.4 Access and use of service .12
5.4.5 Issuance service .13
5.4.6 Conversion service .14
5.4.7 Delivery and/or migration service .14
5.4.8 Disposal service .15
5.4.9 TTPR certification service .16
5.4.10 Non-repository certification service (Remote Certification Service) .18
6 Technological requirements .19
6.1 General .19
6.2 Digital record repository .20
6.3 Transmitter–receiver .20
6.4 Network system .20
6.5 Time-stamping .20
6.6 Audit trail .21
6.7 Network security system .21
6.8 Access control equipment .21
6.9 Disaster recovery facility .22
6.10 System for certificate issuance and validation of digital records .22
6.11 Backup system .23
7 Operational requirements .23
7.1 General .23
7.2 Client management .24
7.3 Administrator’s role and authority management .24
7.4 Network and security management .25
7.5 Digital records management .25
7.6 Operation of transmitted and received messages .28
7.7 Audit record .29
7.8 Data backup and recovery .29
7.9 Security management .30
7.10 Migration and receipt management .30
7.11 Client system management .31
Bibliography .33
iv © ISO 2017 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 46, Information and documentation,
Subcommittee SC 11, Archives/records management.
Introduction
As digital records are the inevitable by-products of various business activities in digital systems, there
is an increasing need to secure the authenticity and legal admissibility of digital records during their
period of retention. It is internationally agreed that "digital records shall not be denied validity or
1)
enforceability of legal recognition by reason of their format alone" . Despite this, it is very difficult
for an organization to assert that its digital records are authentic and able to act as effective evidence
of business action over a long period. In many cases, legal admissibility of digital records managed
by organizations’ records systems is not ensured. As a result, there is a growing need for services
safeguarding these characteristics for digital records by neutral third parties.
In order to protect digital records from business disputes during the period they are required for
sustaining legal obligation and ongoing retention, it is essential to ensure that the authenticity,
reliability and integrity of digital records endures.
Digital signatures are a well-known means to ascertain if digital records have been tampered with.
However, as a digital signature only safeguards integrity within its validity time (generally one to two
years or less), most digitally signed records do not ensure their integrity for longer than this validity
time. It may thus be very difficult for an individual record system to prove the integrity of their digital
records for the period of retention obligation, where this is longer than the validity
...