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Electronic Signatures policy and security requirements for TSPs providing long-
In 2017 our Electronic Signatures and Infrastructures term data preservation services and development of the
committee (TC ESI) will continue to develop European standards which will pave the way for interoperability.
Standards (ENs) for Electronic Registered Delivery and
Registered EMail (REM) services. We are defining policy
and security requirements in line with the European Union Lawful Interception and Data Retention
(EU) scheme for the supervision of eDelivery, and specifying In 2017 our Lawful Interception committee (TC LI) will
the technical architecture, semantic contents, formats and continue to update its Lawful Interception (LI) and Retained
protocol bindings. We will also complete various quick fixes Data (RD) standards, specifications and reports by adding
on existing REM specifications. new services as required. This will include the maintenance
of the seven-part TS on the handover interface and service-
Other ongoing work includes three specifications related to specific details for Internet Protocol (IP) delivery.
signature validation reports and Trusted Service Providers
(TSPs) providing AdES digital signature validation services We will continue to develop a new specification on an
(including policy requirements and protocols). We will interface for communication between authorised Law
start to address TSPs providing remote signature creation, Enforcement Monitoring Facilities (LEMFs) to support (as a
including policy requirements and protocols, and we will minimum) European Investigation Orders related to LI and/or
complete the enhancement of the XAdES signature format to RD. This specification aims to be capable of securely handling
support the Evidence Record (XMLERS). real-time and stored data transfer between LEMFs. While
triggered by the EU, it will be internationally applicable.
We will continue to develop a multipart TS on signature
policies. In 2017, we expect to complete Part 4 on a signature We expect to publish a new specification for an internal
validation policy for European qualified electronic signatures/ network interface X1 for LI covering connections between
seals using trusted lists and to begin work on Parts 2 and 3 on LI systems and several network elements from different
machine-processable formats (XML and ANS.1) of signature vendors over Handover Interface 1 (HI1). In addition, we
policies. will continue to work on the two new related specifications
for interfaces X2 and X3 for messages to HI2 and HI3
We will complete the maintenance of ENs on the policy respectively.
requirements for TSPs and on public key certificate profiles,
integrating feedback from implementations and auditors. We plan to finalise a TS on the dynamic triggering
of interception, which is required as a result of the
Other planned activities will address global acceptance of EU diversification of service and network architectures.
Trust Services, and possibly a new signature format based on
JavaScript Object Notation (JSON). We are also considering We are also developing a new specification on security
providing guidance on the use of Trusted Lists. for LI and RD systems, a fundamental requirement which
is becoming ever more challenging as networks become
Building on our study into the standardisation needs for long- increasingly IP service-centric, globally distributed and,
term data preservation services, including preservation of/ frequently, software-based. Our work on Network Functions
with digital signatures, we plan to begin new standardisation Virtualisation (NFV), which is a key element in this area, is
activities which are expected to include the definition of expected to intensify in 2017, and we will begin to consider
the LI needs of Multi-access Edge Computing (MEC).

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