Rel-19 Security Multi-Gen Advanced

TS 55.226 – A5/4 & GEA4 Encryption Algorithms Specification

Specifies A5/4 encryption for GSM/ECSD and GEA4 for GPRS/EGPRS. Algorithms are stream ciphers based on KASUMI with 128-bit key length.

Release
Rel-19
Category
Security
Subcategory
Encryption
Network Layer
Security
Technology
Multi-Gen
Business Impact
Medium

Key Technologies

GSMGPRSEGPRSKASUMI

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