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ETSI TS 155 251
M00002117
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ETSI TS 155 251 Digital cellular telecommunications system (Phase 2+) (GSM); Specification of the GEA5 and GIA5 encryption algorithms for General Packet Radio Service (GPRS); GEA5 and GIA5 algorithm specification (3GPP TS 55.251 version 15.0.0 Release 15)
standard by European Telecommunications Standards Institute, 07/01/2018
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