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1. WO2014120077 - SECURITY KEY GENERATION FOR DUAL CONNECTIVITY

Publication Number WO/2014/120077
Publication Date 07.08.2014
International Application No. PCT/SE2014/050122
International Filing Date 30.01.2014
IPC
H04L 29/06 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
H04W 12/04 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
12Security arrangements, e.g. access security or fraud detection; Authentication, e.g. verifying user identity or authorisation; Protecting privacy or anonymity
04Key management
H04W 36/00 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
CPC
H04L 2209/24
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
24Key scheduling, i.e. generating round keys or sub-keys for block encryption
H04L 2209/80
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
80Wireless
H04L 63/061
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
06for supporting key management in a packet data network
061for key exchange, e.g. in peer-to-peer networks
H04L 69/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
08Protocols for interworking or protocol conversion
H04L 9/0643
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
06the encryption apparatus using shift registers or memories for block-wise ; or stream; coding, e.g. DES systems ; or RC4; Hash functions; Pseudorandom sequence generators
0643Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
H04L 9/14
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
14using a plurality of keys or algorithms
Applicants
  • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) [SE]/[SE]
Inventors
  • WAGER, Stefan
  • VIRKKI, Vesa
  • TEYEB, Oumer
  • JOHANSSON, Niklas
  • NORRMAN, Karl
Agents
  • BOU FAICAL, Roger
Priority Data
61/758,37330.01.2013US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SECURITY KEY GENERATION FOR DUAL CONNECTIVITY
(FR) GÉNÉRATION DE CLÉ DE SÉCURITÉ POUR UNE COMMUNICATION À DOUBLE CONNECTIVITÉ
Abstract
(EN) Techniques for the secure generation of a set of encryption keys to be used for communication between a wireless terminal and an assisting base station in a dual-connectivity scenario. An example method includes generating (810) an assisting security key for the assisting base station, based on an anchor base station key. The generated assisting security key is sent (820) to the assisting base station, for use by the assisting base station in encrypting data traffic sent to the wireless terminal or in generating one or more additional assisting security keys for encrypting data traffic sent to the wireless terminal while the wireless terminal is dually connected to the anchor base station and the assisting base station. The anchor base station key, or a key derived from the anchor base station key, is used (830) for encrypting data sent to the wireless terminal by the anchor base station.
(FR) La présente invention se rapporte à des procédés adaptés pour générer de façon sécurisée un ensemble de clés de chiffrement devant être utilisées pour une communication entre un terminal sans fil et une station de base d'assistance dans un scénario à double connectivité. Un procédé fourni à titre d'exemple de l'invention consiste à générer (810) une clé de sécurité d'assistance pour la station de base d'assistance, sur la base d'une clé de station de base d'ancrage. La clé de sécurité d'assistance générée est envoyée (820) à la station de base d'assistance en vue d'être utilisée par la station de base d'assistance pour chiffrer un trafic de données envoyé au terminal sans fil ou pour générer une ou plusieurs autres clés de sécurité d'assistance pour chiffrer un trafic de données envoyé au terminal sans fil lorsque le terminal sans fil est doublement connecté à la station de base d'ancrage et à la station de base d'assistance. La clé de station de base d'ancrage, ou une clé dérivée de la clé de station de base d'ancrage, est utilisée (830) pour chiffrer des données envoyées au terminal sans fil par la station de base d'ancrage.
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