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638026
u10.12 UMTS Integrity Protection
Descrição
Masters Degree Network Security Mapa Mental sobre u10.12 UMTS Integrity Protection, criado por Craig Parker em 15-03-2014.
Sem etiquetas
network security
network security
masters degree
Mapa Mental por
Craig Parker
, atualizado more than 1 year ago
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Criado por
Craig Parker
mais de 10 anos atrás
64
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Resumo de Recurso
u10.12 UMTS Integrity Protection
To protect some radio interface signals
Protects against unauthorised modification, insertion or replay of messages
Applies to security mode establishment and other critical signalling procedures
prevents base station from deselecting encryption
Helps extend the influence of authentication when encryption is not applied
Uses 128 bit integrity key IK derived during authentication
Algorithms
UIA1
Based on KASUMI
UIA2
In case of a vulnerability on UIA1 - based on Smow 3g Block Cipher
Located in phone and radio nw controllers
IK passed from USIM to ME after auth
Standardised for global inter operability
Designed and evaluated openly
No export restrictions
Open publication
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