ISO/IEC INTERNATIONAL STANDARD 18370-1 First edition 2016-11-15 Information technology Security techniques Blind digital signatures - Part 1: General Technologie de I'information - Techniques de sécurité - Signatures numériques en blanc- Partie 1: Généeralites Reference number ISO/IEC 18370-1:2016(E) IEC @ IS0/IEC 2016 001,User=bao,zhou 16 09:28:51 MS IS0/IEC 18370-1:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org @ IS0/IEC 2016 - All rights reserved ards Bodies NotforResale, 11/23/201609:28:51MST IS0/IEC 18370-1:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope 2 Normative references 3 Terms and definitions 4 Abbreviated terms and figure elements .1 5 Blind signatures 5.1 General. .8 5.2 Entities. ..8 5.3 Key generation .8 5.4 Blind signature process 5.5 Verification process .9 6 Blind signatures with partial disclosure .10 6.1 General .10 6.2 Entities. .10 6.3 Key generation 10 6.4 Blind signature process with partial disclosure. ..10 6.5 Verification process .11 7 Blind signatures with selective disclosure .12 7.1 General. ..12 7.2 Entities ..13 7.3 Key generation .13 7.4 Blind signature process with selective disclosure .13 7.5 Presentation process. .14 7.6 Verification process. ..15 8 Traceable blind signatures .16 8.1 General. .16 8.2 Entities .17 8.3 Key generation 17 8.4 Traceable blind signature process .17 8.5 Verification process 18 8.6 Requestor tracing process. .19 8.7 Requestor tracing evidence evaluation process .20 8.8 Signature tracing process 21 8.9 Signature tracing evidence evaluation process. .22 Annex A (informative) Comparison table of blind digital signature mechanisms ..23 Annex B (informative) Additional security information for blind signatures with selective disclosure .24 Bibliography .27 Copyrghtntematonal 6Ea6-All rights reserved iii ded by IHS under rds Bodies /23/201609:28:51MST