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ISO/IEC 18033-6:2019

(Main)

IT Security techniques — Encryption algorithms — Part 6: Homomorphic encryption

IT Security techniques — Encryption algorithms — Part 6: Homomorphic encryption

This document specifies the following mechanisms for homomorphic encryption. — Exponential ElGamal encryption; — Paillier encryption. For each mechanism, this document specifies the process for: — generating parameters and the keys of the involved entities; — encrypting data; — decrypting encrypted data; and — homomorphically operating on encrypted data. Annex A defines the object identifiers assigned to the mechanisms specified in this document. Annex B provides numerical examples.

Techniques de sécurité IT — Algorithmes de chiffrement — Partie 6: Chiffrement homomorphe

General Information

Status
Published
Publication Date
01-May-2019
ICS
35.030 - IT Security
Technical Committee
ISO/IEC JTC 1/SC 27 - Information security, cybersecurity and privacy protection
Drafting Committee
ISO/IEC JTC 1/SC 27/WG 2 - Cryptography and security mechanisms
Current Stage
9020 - International Standard under periodical review
Start Date
15-Apr-2024
Completion Date
15-Apr-2024
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ISO/IEC 18033-6:2019 - IT Security techniques -- Encryption algorithmsISO/IEC 18033-6:2019 - IT Security techniques -- Encryption algorithms
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ISO/IEC 18033-6:2019 - IT Security techniques -- Encryption algorithms
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Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 18033-6
First edition
2019-05
IT Security techniques — Encryption
algorithms —
Part 6:
Homomorphic encryption
Techniques de sécurité IT — Algorithmes de chiffrement —
Partie 6: Chiffrement homomorphe
Reference number
ISO/IEC 18033-6:2019(E)
©
ISO/IEC 2019

---------------------- Page: 1 ----------------------
ISO/IEC 18033-6:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2019 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC 18033-6:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviations . 3
5 General model for homomorphic encryption . 4
5.1 Entities . 4
5.2 Key roles . 4
5.3 Algorithms . 4
5.4 Functional requirements . 4
6 Homomorphic encryption mechanisms . 5
6.1 General . 5
6.2 Exponential ElGamal encryption . 5
6.2.1 General. 5
6.2.2 Key generation algorithm . . 5
6.2.3 Encryption . 5
6.2.4 Decryption . 6
6.3 Paillier encryption .
...

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