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EUROPEAN STANDARD
Electronic Signatures and Infrastructures (ESI);
Policy and security requirements for Registered Electronic
Mail Service Providers
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2 ETSI EN 319 531 V1.1.1 (2019-01)
Reference
DEN/ESI-0019531
Keywords
e-delivery services, policy requirements,
registered e-delivery services, registered
electronic mail, security, trust services
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3 ETSI EN 319 531 V1.1.1 (2019-01)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definition of terms, abbreviations and notation . 7
3.1 Terms . 7
3.2 Abbreviations . 7
3.3 Notation . 7
4 General provision on policies and practices . 8
4.1 REMS Practice statement . 8
4.1.1 Common provisions . 8
4.2 Terms and conditions . 9
4.3 Information security policy . 9
4.4 REM nature . 9
4.5 REM styles of operation . 9
5 General provision on REMS . 9
5.1 Message integrity and confidentiality. 9
5.1.1 Common provisions . 9
5.2 Sender and receiver identification and authentication . 10
5.2.1 Provisions for EU QREMSP Initial identity validation . 10
5.3 Time reference . 10
5.3.1 Common provisions . 10
5.3.2 Provisions for EU QREMS . 10
5.4 Evidence . 10
5.4.1 Common provisions . 10
5.5 Interoperability . 10
5.5.1 Common provisions . 10
5.5.2 Provisions for EU QREMSP . 11
6 Risk Assessment . 11
7 REMSP management and operation . 11
7.1 Internal organization. 11
7.1.1 Organization reliability . 11
7.1.2 Segregation of duties . 11
7.2 Human resources . 12
7.3 Asset management . 12
7.3.1 General requirements . 12
7.3.2 Media handling . 12
7.4 Access control . 12
7.5 Cryptographic controls . 12
7.6 Physical and environmental security . 12
7.7 Operation security . 12
7.8 Network security . 12
7.9 Incident management . 12
7.10 Collection of evidence for REMSP internal services . 13
7.11 Business continuity management . 13
7.12 REMSP termination and REMS termination plans . 13
7.13 Compliance. 13
History . 14
ETSI
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4 ETSI EN 319 531 V1.1.1 (2019-01)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Electronic Signatures and
Infrastructures (ESI).
National transposition dates
Date of adoption of this EN: 28 January 2019
Date of latest announcement of this EN (doa): 30 April 2019
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 October 2019
Date of withdrawal of any conflicting National Standard (dow): 31 October 2019
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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5 ETSI EN 319 531 V1.1.1 (2019-01)
Introduction
Business and administrative relationships among companies, public administrations and private citizens are more and
more implemented electronically. Trust is essential for their success and continued development of electronic services.
It is therefore important that any entity using electronic services have suitable security controls and mechanisms in
place to protect their transactions and to ensure trust and confidence with their partners.
Electronic signatures are commonly used worldwide to ensure authenticity and integrity of electronic documents,
making it possible to transform traditional paper-based processes into electronic ones providing a comparable or even
higher level of assurance. As communication is becoming predominantly internet-based, secure and provable exchange
of documents is essential to the full digital transformation.
An electronic registered delivery service (ERDS hereinafter) provides secure and reliable delivery of electronic
messages between parties, producing evidence of the delivery process for legal accountability. Evidence can be seen as
a declaration by a trusted party that a specific event related to the delivery process (submission of a message, relay of a
message, delivery of a message, refusal of a message, etc.) happened at a certain time. Evidence can be immediately
delivered to the interested party (together with the message or separately) or can be kept in a repository for later access.
It is common practice to implement evidence as digitally signed data. Registered electronic mail (REM hereinafter) is a
specific type of electronic registered delivery, which builds on the formats, protocols and mechanisms used in ordinary
e-mail messaging.
In a number of national, regional or sector-specific communities electronic registered delivery and registered electronic
mail services are already in place, and even more are being developed. Without the definition of common standards
there will be no consistency in the services provided, making it difficult for users to compare them. Under these
circumstances, users might be prevented from easily changing to alternative providers, damaging free competition. Lack
of standardization might also adversely affect interoperability between implementations which are based on different
models.
The documents covering ERDS contain the general concepts and requirements which apply to all kinds of electronic
registered delivery services. Since REM is a specific type of electronic registered delivery, the documents covering
REM service build on the corresponding documents covering ERDS by referencing the necessary provisions, and define
the interpretation and specific requirements which apply only to registered electronic mail.
Regulation (EU) No 910/2014 of the European Parliament and of the Council of 23 July 2014 on electronic
identification and trust services for electronic transactions in the internal market and repealing Directive
1999/93/EC [i.1] (Regulation (EU) No 910/2014, or Regulation hereinafter) provides a legal framework to facilitate
cross-border recognition between existing national legal systems related to electronic registered delivery services. That
framework aims to open new market opportunities for European Union trust service providers to offer new
pan-European electronic registered delivery services. The Regulation defines the so-called qualified electronic
registered delivery service (QERDS hereinafter), which is a special type of ERDS, where both the service and its
provider need to meet a number of additional requirements that the regular ERDSs and their providers do not need to
meet.
The framework of ERDS standards aims to cover the common and worldwide-recognized requirements to address
electronic registered delivery in a secure and reliable way, independent of the applicable legislative framework. The
documents contain generic requirements which can be applied in any geographic region. At the same time, the
framework of ERDS standards aims to support demonstrating compliance to the Regulation (EU) No 910/2014 [i.1]
(and related secondary legislation), both for non-qualified and qualified electronic registered delivery services. Specific
clauses are included defining requirements applicable only to qualified electronic registered delivery services,
especially in the documents covering policy and security requirements. However, the legal effects are outside the scope
of the present document.
ETSI
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6 ETSI EN 319 531 V1.1.1 (2019-01)
1 Scope
The present document specifies generally applicable policy and security requirements for Registered Electronic Mail
Service Pro
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