Introduction

3GPP55.251GEA5 and GIA5 algorithm specificationSpecification of the GEA5 and GIA5 encryption algorithms for General Packet Radio Service (GPRS)TS

This specification has been prepared by the 3GPP Task Force, and gives a detailed specification of the 3GPP confidentiality algorithm GEA5 and the 3GPP integrity algorithm GIA5.

This document is the first of three, which between them form the entire specification of the 3GPP confidentiality algorithm GEA5 and the 3GPP integrity algorithm GIA5:

– 3GPP TS 55.251: "Specification of the GEA5 and GIA5 encryption algorithms for GPRS; GEA5 and GIA4 algorithm specification".

– 3GPP TS 55.252: "Specification of the GEA5 and GIA5 encryption algorithms for GPRS; Implementers’ test data".

– 3GPP TS 55.253: "Specification of the GEA5 and GIA5 encryption algorithms for GPRS; Design conformance test data".