FIELD: communication.
SUBSTANCE: intermediate key is formed by means of user equipment based on CK encryption key, IK integrity key and an indication identifier, a binding key is formed by means of user equipment based on the intermediate key, a lower level key Kamf is obtained by means of user equipment based on the binding key, and a base station key KgNB is obtained by means of user equipment based on Kamf.
EFFECT: formation of a unified binding key for different access modes, and separation between binding keys of different access mode and a lower level key formed based on the binding key.
47 cl, 26 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GENERATION OF CRYPTOGRAPHIC KEY | 2008 |
|
RU2480925C2 |
| METHOD, DEVICE AND SYSTEM FOR UPDATING A BOND KEY IN A COMMUNICATION NETWORK FOR ENCODED COMMUNICATION WITH PROVISION APPLICATIONS | 2020 |
|
RU2801267C1 |
| SUBSCRIBER SUBSCRIPTION CONCEALED IDENTIFIER | 2018 |
|
RU2722508C1 |
| GENERATING SECURITY KEYS IN NEXT-GENERATION MOBILE COMMUNICATION NETWORKS | 2007 |
|
RU2416882C2 |
| METHOD OF CRYPTOGRAPHIC KEY FORMING AND DISTRIBUTION IN MOBILE COMMUNICATION SYSTEM AND CORRESPONDING MOBILE COMMUNICATION SYSTEM | 2004 |
|
RU2335866C2 |
| CONFIDENTIALITY INDICATORS FOR MANAGING AUTHENTICATION REQUESTS | 2018 |
|
RU2737348C1 |
| METHOD FOR KEY UPDATE AND DEVICE | 2019 |
|
RU2783597C2 |
| SECONDARY AUTHENTICATION OF USER DEVICE | 2017 |
|
RU2755258C2 |
| METHOD FOR IMPROVING GPRS KEY, SGSN DEVICE, USER DEVICE, HLR / HSS AND GPRS SYSTEM | 2015 |
|
RU2683853C1 |
| METHOD OF IMPLEMENTING SAFETY, DEVICE AND SYSTEM | 2018 |
|
RU2728893C1 |
