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标题: 4G/5G Keys Generator [查看完整版帖子] [打印本页]

时间: 2023-6-9 14:06

作者: jianglinhua 标题: 4G/5G Keys Generator

In 3G-UMTS, CK/IK are directly used by RNCand UE to encrypt data/signaling;

In 4G-LTE, CK/IK are used to derive out theKasme by HSS/USIM, then Kasme is used to derive out Knasenc/Knasint/KeNB by MMEand UE for encrypting NAS signlaing, KeNB is sent to eNB, then it is used byeNB and UE to derive out Krrcenc/Krrcint/Kupenc for encrypting encrypting RRCsignling and user data.

Here NH=nextHopChainingCount is provided byeNB during HO.

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