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638026
u10.12 UMTS Integrity Protection
Description
Masters Degree Network Security Mind Map on u10.12 UMTS Integrity Protection, created by Craig Parker on 15/03/2014.
No tags specified
network security
network security
masters degree
Mind Map by
Craig Parker
, updated more than 1 year ago
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Created by
Craig Parker
over 10 years ago
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Resource summary
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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