Economically Optimal Variable Tag Length Message Authentication

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00318707" target="_blank" >RIV/68407700:21230/17:00318707 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/chapter/10.1007/978-3-319-70972-7_11" target="_blank" >https://link.springer.com/chapter/10.1007/978-3-319-70972-7_11</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-319-70972-7_11" target="_blank" >10.1007/978-3-319-70972-7_11</a>

Result language

angličtina

Original language name

Economically Optimal Variable Tag Length Message Authentication

Original language description

Cryptographic authentication protects messages against forgeries. In real life, messages carry information of different value and the gain of the adversary in a successful forgery and the corresponding cost of the system designers, depend on the "meaning" of the message. This is easy o see by comparing the successful forgery of a $1,000 transaction with the forgery of a $1 one. Cryptographic protocols require computation and increase communication cost of the system, and an economically optimal system must optimize these costs such that message protection be commensurate to their values. This is especially important for resource limited devices that rely on battery power. A MAC (Message Authentication Code) provides protection by appending a cryptographic tag to the message. For secure MACs, the tag length is the main determinant of the security level: longer tags provide higher protection and at the same time increase the communication cost of the system. Our goal is to find the economically optimal tag lengths when messages carry information of different values.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

21st International Conference on Financial Cryptography and Data Security

ISBN

978-3-319-70971-0

ISSN

0302-9743

e-ISSN

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Number of pages

20

Pages from-to

204-223

Publisher name

Springer, Cham

Place of publication

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Event location

Malta

Event date

Apr 3, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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