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ISO/IEC 29128:2011

(Main)

Information technology — Security techniques — Verification of cryptographic protocols

Information technology — Security techniques — Verification of cryptographic protocols

ISO/IEC 29128:2011 establishes a technical base for the security proof of the specification of cryptographic protocols. It specifies design evaluation criteria for these protocols, as well as methods to be applied in a verification process for such protocols. It also provides definitions of different protocol assurance levels consistent with evaluation assurance components in ISO/IEC 15408.

Technologies de l'information — Techniques de sécurité — Vérification des protocoles cryptographiques

General Information

Status
Withdrawn
Publication Date
06-Dec-2011
ICS
35.030 - IT Security
35.040 - Information coding
Technical Committee
ISO/IEC JTC 1/SC 27 - Information security, cybersecurity and privacy protection
Drafting Committee
ISO/IEC JTC 1/SC 27/WG 3 - Security evaluation, testing and specification
Current Stage
Ref Project

Relations

Revised
ISO/IEC 29128-1:2023 - Information security, cybersecurity and privacy protection — Verification of cryptographic protocols — Part 1: Framework
Effective Date
23-Apr-2020

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ISO/IEC 29128:2011 - Information technology -- Security techniques -- Verification of cryptographic protocolsISO/IEC 29128:2011 - Information technology -- Security techniques -- Verification of cryptographic protocols
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ISO/IEC 29128:2011 - Information technology -- Security techniques -- Verification of cryptographic protocols
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INTERNATIONAL ISO/IEC
STANDARD 29128
First edition
2011-12-15
Information technology — Security
techniques — Verification of
cryptographic protocols
Technologies de l'information — Techniques de sécurité — Vérification
des protocoles cryptographiques

Reference number
©
ISO/IEC 2011
©  ISO/IEC 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO/IEC 2011 – All rights reserved

Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Terms and definitions . 1
3 Symbols and notation. . 2
4 General . 3
5 Specifying cryptographic protocols . 5
5.1 Objectives . 5
5.2 The abstraction levels . 5
5.3 The specification of security protocols . 5
5.3.1 General . 5
5.3.2 The symbolic messages . 5
5.3.3 Observing messages . 6
5.3.4 Algebraic properties . 7
5.3.5 Protocol roles . 7
5.4 The specification of adversarial model . 8
5.4.1 Network specification . 8
5.4.2 The attacker . 8
5.4.3 The scenario . 9
5.5 The specification of security properties . 10
5.5.1 General . 10
5.5.2 Trace properties . 11
6 Cryptographic protocol assurance levels . 12
6.1 General . 12
6.2 Protocol Assurance Level 1 . 13
6.3 Protocol Assurance Level 2 . 13
6.4 Protocol Assurance Level 3 . 14
6.5 Protocol Assurance Level 4 . 14
6.6 Difference among Protocol Assurance Levels . 14
6.7 Corresponding assurance levels in ISO/IEC 15408 . 15
7 Security Assessment and Verification . 16
7.1 Protocol specification . 16
7.1.1 PPS_SEMIFORMAL . 16
7.1.2 PPS_FORMAL . 17
7.1.3 PPS_MECHANIZED . 17
7.2 Adversarial model . 18
7.2.1 PAM INFORMAL . 18
7.2.2 PAM_FORMAL . 18
7.2.3 PAM_MECHANIZED . 19
7.3 Security properties . 20
7.3.1 General . 20
7.3.2 PSP_INFORMAL . 21
7.3.3 PSP_FORMAL . 21
7.3.4 PSP_MECHANIZED . 22
7.4 Self-assessment evidence for verification. 23
7.4.1 General . 23
7.4.2 PEV_ARGUMENT . 23
7.4.3 PEV_HANDPROVEN . 23
7.4.4 PEV_BOUNDED . 24
7.4.5 PEV_UNBOUNDED .24
© ISO/IEC 2011 – All rights reserved iii

8 Common Methodology for Cryptographic Protocols Security Evaluation . 25
8.1 Introduction . 25
8.2 Protocol specification evaluation . 26
8.2.1 Evaluation of sub-activity (PPS_SEMIFORMAL) . 26
8.2.2 Evaluation of sub-activity (PPS_FORMAL) . 26
8.2.3 Evaluation of sub-activity (PPS_MECHANIZED) . 26
8.3 Adversarial model evaluation . 27
8.3.1 Evaluation of sub-activity (PAM INFORMAL) . 27
8.3.2 Evaluation of sub-activity (PAM_FORMAL) . 27
8.3.3 Evaluation of sub-activity (PAM_MECHANIZED) . 28
8.4 Security properties evaluation . 28
8.4.1 Evaluation of sub-activity (PSP_INFORMAL) . 28
8.4.2 Evaluation of sub-activity (PSP_FORMAL) . 28
8.4.3 Evaluation of sub-activity (PSP_MECHANIZED) . 29
8.5 Self-assessment evidence evaluation . 29
8.5.1 Evaluation of sub-activity (PEV_ARGUMENT) . 29
8.5.2 Evaluation of sub-activity (PEV_HANDPROVEN) . 30
8.5.3 Evaluation of sub-activity (PEV_BOUNDED) . 30
8.5.4 Evaluation of sub-activity (PEV_UNBOUNDED) . 30
Annex A (informative) Guidelines for Cryptographic Protocol Design . 32
Annex B (informative) Example of formal specification . 34
B.1 Symbolic specification of security protocols . 34
B.1.1 Abstraction level . 34
B.1.2 Protocol specifications . 35
B.2 State transitions . 37
B.2.1 Attacker model . 37
B.2.2 Configuration state . 37
B.2.3 Traces . 38
B.3 Trace properties . 38
B.3.1 Secrecy . 38
B.3.2 Authentication . 39
Annex C (informative) Verification examples . 41
C.1 Sample protocol . 41
C.2 Design artifacts . 41
C.2.1 Input to protocol verification tool . 42
C.2.2 Protocol Specification . 43
C.2.3 Operating Environment . 44
C.2.4 Security Properties . 44
C.2.5 Evidence . 44
C.3 Additional inputs for verification . 47
Bibliography . 49

iv © ISO/IEC 2011 – All rights reserved

Foreword
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