IS/ISO/IEC 9796-2: Information Technology - Security Techniques - Digital Signature Schemes giving Message Recovery, Part 2: Integer Factorization based Mechanisms

51 Pages·2002·3.2 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS/ISO/IEC 9796-2 (2002): Information Technology - Security
Techniques - Digital Signature Schemes giving Message
Recovery, Part 2: Integer Factorization based Mechanisms
[LITD 17: Information Systems Security and Biometrics]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS/ISO/IEC 9796-2 : 2002
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Indian Standard
INFORMATION TECHNOLOGY — SECURITY
TECHNIQUES — DIGITAL SIGNATURE SCHEMES
GIVING MESSAGE RECOVERY
PART 2 INTEGER FACTORIZATION BASED MECHANISMS
ICS 35.040
© BIS 2010
BU R E AU O F I N D I A N S TA N DA R D S
MANAK BHAVAN, 9 B AHADUR SHAH ZAFAR MARG
NEW DELHI 110002
April 2010 Price Group 14
Information Systems Security and Biometrics Sectional Committee, LITD 17
NATIONAL FOREWORD
This Indian Standard (Part 2) which is identical with ISO/IEC 9796-2 : 2002 ‘Information technology —
Security techniques — Digital signature schemes giving message recovery — Part 2: Integer factorization
based mechanisms’ issued by the Joint Technical Committee ISO/IEC JTC 1 of International Organization
for Standardization (ISO) and International Electrotechnical Commission (IEC) jointly was adopted by the
Bureau of Indian Standards on the recommendation of the Information Systems Security and Biometrics
Sectional Committee and approval of the Electronics and Information Technology Division Council.
The text of the ISO/IEC Standard has been approved as suitable for publication as an Indian Standard
without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention
is particularly drawn to the following:
a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as
‘Indian Standard’.
b) Comma (,) has been used as a decimal marker in the International Standard while in Indian Standards,
the current practice is to use a point (.) as the decimal marker.
In this adopted standard, reference appears to the following International Standard for which Indian Standard
also exists. The corresponding Indian Standard which is to be substituted in its place is listed below along
with its degree of equivalence for the edition indicated:
International Standard Corresponding Indian Standard Degree of Equivalence
ISO/IEC 9796-3 : 20001) Information IS/ISO/IEC 9796-3 : 2006 Information Technically Equivalent
technology — Security techniques — technology — Security techniques —
Digital signature schemes giving Digital signature schemes giving
message recovery — Part 3: Discrete message recovery: Part 3 Discrete
logarithm based mechanisms logarithm based mechanisms
The technical committee has reviewed the provisions of following International Standards referred in this
adopted standard and has decided that they are acceptable for use in conjunction with this standard:
International Standard Title
ISO/IEC 9797-2 Information technology — Security techniques — Message Authentication
Codes (MACs) — Part 2: Mechanism using a dedicated hash-function
ISO/IEC 9798-1 : 1997 Information technology — Security techniques — Entity authentication —
Part 1: General
ISO/IEC 10118 (all parts) Information technology — Security techniques — Hash-functions
ISO/IEC 14888 (all parts) Information technology — Security techniques — Digital signatures with
appendix
For the purpose of deciding whether a particular requirement of this standard is complied with, the final
value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in
accordance with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant
places retained in the rounded off value should be the same as that of the specified value in this
standard.

1)Since revised in 2006.
IS/ISO/IEC 9796-2 : 2002
Indian Standard
INFORMATION TECHNOLOGY — SECURITY
TECHNIQUES — DIGITAL SIGNATURE SCHEMES
GIVING MESSAGE RECOVERY
PART 2 INTEGER FACTORIZATION BASED MECHANISMS

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