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  • BSI
    BS ISO/IEC 9798-2:2008 Information technology. Security techniques. Entity authentication - Mechanisms using symmetric encipherment algorithms
    Edition: 2013
    $411.69
    / user per year

Description of BS ISO/IEC 9798-2:2008 2013

This part of ISO/IEC 9798 specifies entity authentication mechanisms using symmetric encipherment algorithms. Four of the mechanisms provide entity authentication between two entities where no trusted third party is involved; two of these are mechanisms to unilaterally authenticate one entity to another, while the other two are mechanisms for mutual authentication of two entities. The remaining mechanisms require a trusted third party for the establishment of a common secret key, and realize mutual or unilateral entity authentication.

The mechanisms specified in this part of ISO/IEC 9798 use time variant parameters such as time stamps, sequence numbers, or random numbers to prevent valid authentication information from being accepted at a later time or more than once.

If no trusted third party is involved and a time stamp or sequence number is used, one pass is needed for unilateral authentication, while two passes are needed to achieve mutual authentication. If no trusted third party is involved and a challenge and response method employing random numbers is used, two passes are needed for unilateral authentication, while three passes are required to achieve mutual authentication. If a trusted third party is involved, any additional communication between an entity and the trusted third party requires two extra passes in the communication exchange.



Standard NumberBS ISO/IEC 9798-2:2008
TitleInformation technology. Security techniques. Entity authentication - Mechanisms using symmetric encipherment algorithms
StatusWithdrawn
Publication Date2013-03-01
Withdrawn Date2019-06-10
ReplacesBS ISO/IEC 9798-2:1999
Replaced ByBS ISO/IEC 9798-2:2019
Identical National Standard OfISO/IEC 9798-2:2008/Cor 3:2013
CorrectsBS ISO/IEC 9798-2:2008
DescriptorsCryptography, Tokens (data transmission), Information exchange, Data storage protection, Data processing, Software engineering techniques, Data transmission, Programming techniques, Data security, Safety measures, Data representation, Verification, Algorithms, Coding (programming)
ICS35.030 IT Security
CommitteeIST/33/2
ISBN978 0 580 81763 2
PublisherBSI
Pages26

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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