ISO/IEC 19823-16:2026

International
Standard
ISO/IEC 19823-16
Second edition
Information technology —
2026-03
Conformance test methods for
security service crypto suites —
Part 16:
Crypto suite ECDSA-ECDH
Technologies de l'information — Méthodes d'essai de conformité
pour les suites cryptographiques des services de sécurité —
Partie 16: Suite cryptographique ECDSA-ECDH
Reference number
© ISO/IEC 2026
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© ISO/IEC 2026 – All rights reserved
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions .1
3.2 Symbols .1
3.3 Abbreviated terms .2
4 Test methods . 2
4.1 General .2
4.2 By demonstration .2
4.3 By design .3
5 Test methods related to ISO/IEC 18000-4:2018, MODE 4 . 3
5.1 Default items applicable to the test methods .3
5.1.1 General .3
5.1.2 Test environment .3
5.1.3 Pre-conditioning .3
5.1.4 Default tolerance .3
5.1.5 Total measurement uncertainty .3
5.2 Test setup and measurement equipment .3
5.2.1 General .3
5.2.2 Test setup for Interrogator testing .4
5.2.3 Test setup for Tag testing.4
5.2.4 Test equipment .4
6 Test methods related to ISO/IEC 29167-16 Interrogators and Tags . 5
6.1 Test map for optional features .5
6.2 Crypto suite requirements .5
6.2.1 General .5
6.2.2 Crypto suite requirements of ISO/IEC 29167-16:2022, Clauses 5 to 6 .5
6.2.3 Crypto suite requirements of ISO/IEC 29167-16:2022, Clauses 7 to 11 .5
6.2.4 Crypto suite requirements of ISO/IEC 29167-16:2022, Annex A .9
6.2.5 Crypto suite requirements of ISO/IEC 29167-16:2022, Annex E .10
6.3 Test patterns for ISO/IEC 18000-4:2018, MODE 4 .11
6.3.1 General .11
6.3.2 Test pattern 1 utilizing ISO/IEC 18000-4:2018, 9.3.3 .11
6.3.3 Test pattern 2 utilizing ISO/IEC 18000-4:2018, 9.3.3 . 13
6.3.4 Test pattern 3 utilizing ISO/IEC 18000-4:2018, 9.3.3 . 13
6.3.5 Test pattern 4 utilizing ISO/IEC 18000-4:2018, 9.3.3 . 13
6.3.6 Test pattern 5 utilizing ISO/IEC 18000-4:2018, 9.3.3 . 13
6.3.7 Test pattern 6 utilizing ISO/IEC 18000-4:2018, 9.3.3 .14
6.3.8 Test pattern 7 utilizing ISO/IEC 18000-4:2018, 9.3.3 .14
6.3.9 Test pattern 8 utilizing ISO/IEC 18000-4:2018, 9.3.3 .14
6.3.10 Test pattern 9 utilizing ISO/IEC 18000-4:2018, 9.3.3 .14
6.3.11 Test pattern 10 utilizing ISO/IEC 18000-4:2018, 9.3.3 . 15
Annex A (informative) Example of test parameters .16
Bibliography .20

© ISO/IEC 2026 – All rights reserved
iii
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical activity.
ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations,
governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
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 document 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 or www.iec.ch/members_experts/refdocs).
ISO and IEC draw attention to the possibility that the implementation of this document may involve the
use of (a) patent(s). ISO and IEC take no position concerning the evidence, validity or applicability of any
claimed patent rights in respect thereof. As of the date of publication of this document, ISO and IEC had
received notice of (a) patent(s) which may be required to implement this document. However, implementers
are cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents and https://patents.iec.ch. ISO and IEC shall not be held
responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of 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 www.iso.org/iso/foreword.html.
In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 31, Automatic identification and data capture techniques.
This second edition cancels and replaces the first edition (ISO/IEC 19823-16:2020), which has been
technically revised.
The main changes are as follows:
— command codes have been technically revised, “01h” revised to “80h” in 6.3;
— normative references have updated – ISO/IEC 29167-16:2015 has been updated and ISO/IEC 29167-15:2022
has been removed.
A list of all parts in the ISO/IEC 19823 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
www.iec.ch/national-committees.

© ISO/IEC 2026 – All rights reserved
iv
Introduction
The ISO/IEC 29167 series describes security services that are applicable for the ISO/IEC 18000 series.
The various parts of the ISO/IEC 29167 series describe crypto suites that are optional extensions to the
ISO/IEC 18000 series air interfaces.
The ISO/IEC 19823 series describes conformance test methods for security service crypto suites.
The ISO/IEC 19823 series is related to the ISO/IEC 18047 series, which describes the radio frequency
identification device conformance test methods, in the same way as the ISO/IEC 29167 series is related to
the ISO/IEC 18000 series. These relations mean that, for a product that is claimed to be compliant to a pair
of ISO/IEC 18000-n and ISO/IEC 29167-m, the test methods of ISO/IEC 18047-n and ISO/IEC 19823-m apply.
If a product supports more than one part of the ISO/IEC 18000 series or the ISO/IEC 29167 series, all related
parts of the ISO/IEC 18047 series and the ISO/IEC 19823 series apply.
This document describes the test methods for the elliptic curve digital signature algorithm-elliptic curve
Diffie-Hellman (ECDSA-ECDH) crypto suite as defined in ISO/IEC 29167-16.
The conformance parameters are:
— parameters that apply directly affecting system functionality and inter-operability;
— protocol including commands and replies;
— nominal values and tolerances.

© ISO/IEC 2026 – All rights reserved
v
International Standard ISO/IEC 19823-16:2026(en)
Information technology — Conformance test methods for
security service crypto suites —
Part 16:
Crypto suite ECDSA-ECDH
1 Scope
This document describes the test methods for determining conformance for the security crypto suite
ECDSA-ECDH defined in ISO/IEC 29167-16.
This document contains conformance tests for all mandatory and applicable optional functions.
Unless otherwise specified, the tests in this document are only applicable to radio frequency identification
(RFID) Tags and Interrogators defined in the ISO/IEC 18000 series using ISO/IEC 29167-16.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories
ISO/IEC 18000-4:2018, Information technology — Radio frequency identification for item management — Part
4: Parameters for air interface communications at 2,45 GHz
ISO/IEC 19762, Information technology — Automatic identification and data capture (AIDC) techniques —
Vocabulary
ISO/IEC 29167-16:2022, Information technology — Automatic identification and data capture techniques —
Part 16: Crypto suite ECDSA-ECDH security services for air interface communications
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 19762 and ISO/IEC 29167-16
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.2 Symbols
For the purposes of this document, the symbols given in ISO/IEC 19762 apply.

© ISO/IEC 2026 – All rights reserved
3.3 Abbreviated terms
For the purposes of this document, the abbreviated terms given in ISO/IEC 19762 and the following apply.
DBPSK differential binary phase shift keying
ECDH elliptic curve Diffie-Hellman
ECDHP ECDH parameter
ECDSA elliptic curve digital signature algorithm
MAC message authentication code
MAM mutual authentication message
MIC message integrity code
O-QPSK offset quadrature phase shift keying
RN random number
SEK session encryption key
SIK session integrity check key
TPK temporary public key
TRAIS tag and reader air interface security
TRAIS-P TRAIS based on public key cryptography
TTP trusted third party
TTPID identifier of TTP
4 Test methods
4.1 General
This document describes the test methods for ISO/IEC 29167-16. As parts of the ISO/IEC 19823 series are
always intended to be tested in conjunction with the ISO/IEC 18047 series, duplication of information,
requirements and specifications present in the ISO/IEC 18047 series has been avoided.
Clause 5 describes elements that are covered in the respective part of the ISO/IEC 18047 series.
Clause 6 describes elements that are not covered by the ISO/IEC 18047 series and that are therefore
addressed in this document.
4.2 By demonstration
"By demonstration" means that laboratory testing of one or, if required for statistical reasons, multiple
products, processes, or services to ensure conformance.
A test laboratory meeting the requirements of ISO/IEC 17025 shall be selected for the performance of the
indicated testing to ensure conformance of the component or system.
For protocol requirements that are verified by demonstration, the test conditions are specified by this
document. The detailed test plan is at the discretion of the test laboratory.

© ISO/IEC 2026 – All rights reserved
4.3 By design
"By design" means that either design parameters or theoretical analyses, or both, ensure conformance. A
vendor submitting a component or system for conformance testing shall provide the necessary technical
information, in the form of a technical memorandum or similar. A test laboratory shall issue a test certificate
indicating whether the technical analysis was sufficient to ensure conformance of the component or system.
For protocol requirements that are verified by design, the method of technical analysis is at the discretion
of the submitting vendor and is not specified by this document. In general, the technical analysis shall have
sufficient rigor and technical depth to convince a test engineer knowledgeable of the protocol that the
particular requirement has been met.
5 Test methods related to ISO/IEC 18000-4:2018, MODE 4
5.1 Default items applicable to the test methods
5.1.1 General
The requirements and recommendations in 5.1 shall be fulfilled.
5.1.2 Test environment
Unless otherwise specified, testing shall take place in an environment of temperature 23 °C ± 3 °C
(73 °F ± 5 °F) and relative humidity of 40 % to 60 %.
5.1.3 Pre-conditioning
Where pre-conditioning is required by the test method, the Tags and Interrogators to be tested shall be
conditioned to the test environment for an appropriate period of time before testing.
5.1.4 Default tolerance
Unless otherwise specified, a default tolerance of ±5 % shall be applied to the quantity values given to
specify the characteristics of the test equipment (e.g. linear dimensions) and the test method procedures
(e.g. test equipment adjustments).
5.1.5 Total measurement uncertainty
The total measurement uncertainty for each quantity determined by these test methods shall be stated in
the test report.
NOTE 1 Basic information is given in Reference [5].
NOTE 2 The default items applicable to the test methods defined in 5.1 are detailed in ISO/IEC TR 18047-4.
5.2 Test setup and measurement equipment
5.2.1 General
This subclause defines the test setup and measurement equipment for verifying the operation of a Tag or an
Interrogator according to ISO/IEC 18000-4:2018, MODE 4.
Test results shall not be influenced by the setup method of the test.
Test setups include:
— test setup for Interrogator testing (see 5.2.2),

© ISO/IEC 2026 – All rights reserved
— test setup for Tag testing (see 5.2.3),
— test equipment (see 5.2.4).
These are described in the following subclauses.
5.2.2 Test setup for Interrogator testing
An Interrogator with integral antenna(e) shall be equipped with temporary antenna connector(s), or else
coupling device(s) [i.e. sense antenna(e)] shall be used to connect to the test equipment.
A sense antenna shall not affect test results. Appropriate distances (e.g. 30 cm), antenna sizes and types (e.g.
patch antenna) and antenna polarization (i.e. circular polarization) shall be used. The antenna configuration
and distance shall be included in the test report.
To set up an Interrogator with the appropriate test pattern and operational modes, one of two methods shall
be used (combinations are also possible):
a) an implemented test mode,
b) a Tag for initializing the appropriate operational mode.
The air interface parameter in a test mode shall behave in the same way as the air interface parameter
during normal usage.
Unless otherwise stated, for all tests, the frequency of the reference carrier shall conform to
ISO/IEC 18000-4:2018, 9.3.1. The output power shall be set to maximum (both carriers switched on).
5.2.3 Test setup for Tag testing
A Tag with integral antenna(e) shall be equipped with temporary antenna connector(s) or else suitable
coupling device(s) [i.e. antenna(e)] shall be used to connect to the test equipment.
A sense antenna shall not affect test results. Appropriate distances (e.g. 30 cm), antenna sizes and types
(e.g. patch antenna), as well as antenna polarization (i.e. circular polarization) shall be used. The antenna
configuration and distance shall be included in the test report.
To set up a Tag with the appropriate test pattern and operational modes, one of two methods shall be used
(combinations shall also be possible):
a) an implemented test mode,
b) an Interrogator for initializing the appropriate operational mode.
Unless otherwise stated, for all tests, the frequency of the reference carrier shall conform to
ISO/IEC 18000-4:2018, 9.3.1.
5.2.4 Test equipment
5.2.4.1 General
All tests shall be performed using commercial test equipment. In addition to the measurement devices
described in the following subclauses, appropriate devices such as power supplies, splitters, combiners and
cables shall be used.
The reference point for all measurements shall be either (temporary) antenna connector(s), or appropriate
coupling device(s). The reference point shall be documented in the test report.

© ISO/IEC 2026 – All rights reserved
5.2.4.2 Spectrum analyser
A spectrum analyser with the capability of digital demodulating and with vector signal analysis capability
shall be used. Appropriate trigger functionality shall be either implemented in the spectrum analyser or
generated externally with additional measurement devices.
5.2.4.3 Signal generator
A signal generator for the 2,45 GHz band shall be used to generate an Interrogator output signal for testing
Tags. The signal level for the tests shall be within the operational range of the receiver input of the Tag. The
input level shall be specified by the Tag manufacturer and shall be documented in the test report.
5.2.4.4 Logic analyser
A logic analyser shall be used for verification of the correct data. Therefore, the analyser shall be capable of
storage of sequent samples in 0,5 s.
6 Test methods related to ISO/IEC 29167-16 Interrogators and Tags
6.1 Test map for optional features
Table 1 lists all optional features of the crypto suite defined by Tag and Reader Air Interface Security
(TRAIS) based on Public key cryptography (TRAIS-P) and shall be used as a template for reporting the test
results. Furthermore, Table 1 shall be used in reference to the test requirements in 6.2.
Table 1 — Test map for optional features
Mark item to be
Item Test
Feature Additional requirement tested for
no. result
supplied product
Mutual authentication Shall be tested with the Authenticate command of
without TTP involved the relevant part of the ISO/IEC 18000 series.
Mutual authentication with Shall be tested with the Authenticate command of
TTP involved the relevant part of the ISO/IEC 18000 series.
Shall be tested with the AuthComm command of
3 Authenticate communication
the relevant part of the ISO/IEC 18000 series.
Shall be tested with the SecureComm command of
4 Secure communication
the relevant part of the ISO/IEC 18000 series.
Table 2 to Table 5 lists all crypto suite requirements that shall be tested in dependence of the features of
Table 1 as supported by the device under test. Items marked with M are mandatory and shall be tested for
each device under test.
6.2 Crypto suite requirements
6.2.1 General
Subclause 6.2 refers to the requirements of ISO/IEC 29167-16.
6.2.2 Crypto suite requirements of ISO/IEC 29167-16:2022, Clauses 5 to 6
All of the requirements of ISO/IEC 29167-16:2022, Clauses 5 to 6 shall be followed.
6.2.3 Crypto suite requirements of ISO/IEC 29167-16:2022, Clauses 7 to 11
Table 2 contains all of the requirements of ISO/IEC 29167-16:2022, Clauses 7 to 11.

© ISO/IEC 2026 – All rights reserved
Table 2 — Crypto suite requirements of ISO/IEC 29167-16:2022, Clauses 7 to 11
Item Protocol
Requirement M/O Applies to Verification method
a
no. subclause
ECDHP:
ECDH parameter, consisting of parameter ID, parameter
Interrogator/
length and parameter content three parts, where the
1 7.1 M By design
Tag
parameter ID shall be 8 bits; parameter shall be 16 bits in
length and indicate the number of bytes in the parameter
content. The values of ECDH parameter:
a) 01 : The field value shall be denoted by OIDs. The
h
Length subfield indicates the number of octets of OIDs.
The values of Content subfield are the content of OIDs.
b)  Other: All other values are RFU.
MK[127:0]
Interrogator/
2 7.1 M By design
Tag
Master key
MIC [255:0]
t
3 7.1 M Tag By design
Message integrity code generated by the Tag, the length
shall be 256 bits.
RN [63:0]
t
4 7.1 M Tag By design
64-bit random number generated by the Tag
Sig [383:0]
t
5 7.1 M Tag By design
Digital signature generated by the Tag. The length shall be
384 bits.
TPK [391:0]
t
6 7.1 M Tag By design
Temporary public key generated by Tag, the length shall
be 392 bits.
X [391:0]
t
7 7.1 M Tag By design
Temporary private key generated by Tag and used for
ECDH exchange.
MIC [255:0]
i
8 7.1 M Interrogator By design
Message integrity code generated by the Interrogator, the
length shall be 256 bits.
RN [63:0]
i
9 7.1 M Interrogator By design
64-bit random number generated by the Interrogator.
Sig [383:0]
i
10 7.1 M Interrogator By design
Digital signature generated by the Interrogator. The
length shall be 384 bits.
TPK [391:0]
i
11 7.1 M Interrogator By design
Temporary public key generated by Interrogator, the
length shall be 392 bits.
X [391:0]
i
12 7.1 M Interrogator By design
Temporary private key generated by Interrogator and
used for ECDH exchange.
Interrogator/
13 7.2 Cert Type shall be 4 bits, Value shall be: M By design
Tag
a) 0000: Value subfield contains X.509 certificate of
Interrogator, Cert ;
i
b) 0001: Value subfield contains X.509 certificate of
Tag, Cert ;
t
c) 0010: Value subfield contains X.509 certificate of
TTP, Cert ;
ttp
d) Other: All other values are RFU.
A transition to Ready state shall also cause a reset of all
14 8 M Tag By design
variables used by the crypto suite.

© ISO/IEC 2026 – All rights reserved
TTaabbllee 22 ((ccoonnttiinnueuedd))
Item Protocol
Requirement M/O Applies to Verification method
a
no. subclause
Implementations of this crypto suite shall ensure that
15 9 all memory used for intermediate results is cleared after M Tag By design
each operation (message-response pair) and after reset.
The crypto suite shall parse the Messages and process the By demonstration
16 10.2.1 data based on the value of CSI, which is the first parame- M Interrogator using test patterns 3,
ter of all commands. 4, 7 and 8
By demonstration
17 10.2.2 The FN shall be 8 bits. M Interrogator using test patterns 3,
4, 7 and 8
By demonstration
18 10.2.2 The IID shall be 64 bits. M Interrogator using test patterns 3,
4, 7 and 8
The following sections of this document describe the By demonstration
19 10.2.2 formatting of Message and Response for authentication. M Interrogator using test patterns 3,
AuthType shall be "00". 4, 7 and 8
By demonstration
20 10.2.2 In MAM1.1 Message, AuthStep shall be "000". M Interrogator using test patterns 3,
4, 7 and 8
By demonstration
If TTP not to be involved, TTPID shall be "0000 0000", or
21 10.2.2 M Interrogator using test patterns 3,
If TTP to be involved, TTPID shall be "0000 0001".
4, 7 and 8
By demonstration
22 10.2.2 ECDH parameter shall be 01 . M Interrogator using test patterns 3,
h
4, 7 and 8
By demonstration
23 10.2.3 The FN shall be 8 bits. M Tag using test patterns 1,
2, 5 and 6
By demonstration
24 10.2.3 TheTID shall be 64 bits. M Tag using test patterns 1,
2, 5 and 6
By demonstration
25 10.2.3 TTPID is the same as the one in the MAM1.1 Message. M Tag using test patterns 1,
2, 5 and 6
By demonstration
26 10.2.3 ECDH parameter shall be 01 . M Tag using test patterns 1,
h
2, 5 and 6
By demonstration
27 10.2.4 The FN shall be 8 bits. M Interrogator using test patterns 4
and 8
The following sections of this document describe the By demonstration
28 10.2.4 formatting of Message and Response fo
...