ISO/IEC 9796-2:2002/Amd 1:2008

INTERNATIONAL ISO/IEC
STANDARD 9796-2
Second edition
2002-10-01
AMENDMENT 1
2008-01-15
Information technology — Security
techniques — Digital signature schemes
giving message recovery —
Part 2:
Integer factorization based mechanisms
AMENDMENT 1
Technologies de l'information — Techniques de sécurité — Schémas
de signature numérique rétablissant le message —
Partie 2: Mécanismes basés sur une factorisation entière
AMENDEMENT 1
Reference number
ISO/IEC 9796-2:2002/Amd.1:2008(E)
©
ISO/IEC 2008
ISO/IEC 9796-2:2002/Amd.1:2008(E)
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ISO/IEC 9796-2:2002/Amd.1:2008(E)
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. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to ISO/IEC 9796-2:2002 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 27, IT Security techniques.

© ISO/IEC 2008 – All rights reserved iii

ISO/IEC 9796-2:2002/Amd.1:2008(E)
Information technology — Security techniques — Digital
signature schemes giving message recovery —
Part 2:
Integer factorization based mechanisms
AMENDMENT 1
Add the following text after page 46.

© ISO/IEC 2008 – All rights reserved 1

ISO/IEC 9796-2:2002/Amd.1:2008(E)
Annex E
(normative)
ASN.1 module
E.1 Formal definition
MessageRecoverySignatureMechanisms {
iso(1) standard(0) signature-schemes(9796) part(2) asn1-module(1)
message-recovery-signature-mechanisms(0) }
DEFINITIONS EXPLICIT TAGS ::= BEGIN

IMPORTS
HashFunctions
FROM DedicatedHashFunctions {
iso(1) standard(0) hash-functions(10118) part(3)
asn1-module(1) dedicated-hash-functions(0) } ;

SignatureWithMessageRecovery ::= SEQUENCE {
algorithm ALGORI
...