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41. 发明专利

BRPI0919215A2 método e servidor de gerenciamento de chave, dispositivos de origem e de destino para uso em uma rede de comunicação, programa de computador, e, produto de programa de computador 未知
公开(公告)号：BRPI0919215A2
公开(公告)日：2015-12-08
申请号：BRPI0919215
申请日：2009-03-13
申请人： ERICSSON TELEFON AB L M
发明人： LINDHOLM FREDERIK , NORRMAN KARL , NÄSLUND MATS , BLOM ROLF
IPC分类号： H04L9/08 , H04L29/06

42. 发明专利

CA2947371A1 PROTECTING WLCP MESSAGE EXCHANGE BETWEEN TWAG AND UE 未知
公开(公告)号：CA2947371A1
公开(公告)日：2015-11-12
申请号：CA2947371
申请日：2015-04-15
申请人： ERICSSON TELEFON AB L M (PUBL)
发明人： ROELAND DINAND , ROMMER STEFAN , NORRMAN KARL , LEHTOVIRTA VESA
IPC分类号： H04W12/04 , H04W36/00 , H04W84/12
摘要： P433622015-04-14 16:44 33 PROTECTING WLCP MESSAGE EXCHANGE BETWEEN TWAG AND UE Abstract A method of protecting WLAN Control Protocol (WLCP) message exchange between a Trusted WLAN Access Gateway(TWAG)(112)of a Trusted WLAN Access Network(TWAN)(110)and a User Equipment (UE)(101)are provided. The method comprises deriving, byan Authentication, Authorization, and Accounting, (AAA)Server(103)of an Evolved Packet Core (EPC)network which is interfaced with the TWAN, and bythe UE, a Master Session Key(MSK)and an Extended MSK(EMSK), sending, from the AAA Server to a Trusted WLAN AAA Proxy(TWAP)(113) of the TWAN and an Access Point(AP)(111)of the TWAN, the MSK or a key derived from at least the MSK, andderiving, by the TWAN or by the AAA Server, and by the UE, from the MSK, the EMSK, or the key derived from at least the MSK or the EMSK, a key for protecting the WLCP message exchange.Corresponding devices, computer programs, and computer program products are further provided. (Fig. 8)

43. 发明专利

CA2861941A1 CALL HANDOVER BETWEEN CELLULAR COMMUNICATION SYSTEM NODES THAT SUPPORT DIFFERENT SECURITY CONTEXTS 未知
公开(公告)号：CA2861941A1
公开(公告)日：2013-08-08
申请号：CA2861941
申请日：2013-01-28
申请人： ERICSSON TELEFON AB L M
发明人： NORRMAN KARL , WIFVESSON MONIKA
IPC分类号： H04W12/04 , H04W36/00
摘要： In the context of facilitating a circuit switched to packet switched handover of a call in a cellular communication system (101), a first node (611, 711, 800) (e.g., packet switched target node) generates a security context for a client (601, 701) whose call is being handed over. This involves the first node (611, 711, 800) receiving (501) at least one cryptographic key from a second node (607, 707) (e.g., a circuit switched node supporting the existing connection) and receiving (503) identities of security algorithms supported by the client (601, 701) from a third node (609, 709) (e.g., a packet switched node supporting the existing connection); The first node (611, 711, 800) uses (505) the at least one cryptographic key and the identities to generate the security context for the client (601, 701).

44. 发明专利

RU2480925C2 ГЕНЕРАЦИЯ КРИПТОГРАФИЧЕСКОГО КЛЮЧА 未知
公开(公告)号：RU2480925C2
公开(公告)日：2013-04-27
申请号：RU2010149890
申请日：2008-07-21
申请人： ERICSSON TELEFON AB L M
发明人： NORRMAN KARL , NESLUND MATS
IPC分类号： H04L9/08 , H04W12/02
摘要： Изобретениеотноситсяк передачеданных, аименнок способугенерациикриптографическогоключа. Техническимрезультатомявляетсяповышениебезопасностисвязи. Техническийрезультатдостигаетсятем, чтозаявленспособгенерациикриптографическогоключа (120) длязащитысвязимеждудвумяобъектами (202, 204), причемэтотспособвыполняетсяпервымобъектом (202, 302) какчастьраспределеннойоперациибезопасности, инициированнойвторымобъектом (202, 304), исодержитэтапы, накоторых: предоставляют (306) поменьшеймередвапараметра (106, 108), изкоторыхпервыйпараметр (106) содержитв себеиливыводитсяизрядакриптографическихключей (110, 112), вычисленныхпервымобъектом (202) привыполненииоперациибезопасности, авторойпараметрсодержитв себеиливыводитсяизмаркера (116), имеющегоразноезначениеприкаждойинициацииоперациибезопасностивторымобъектом (204, 304) дляпервогообъекта (202, 302); иприменяют (308) функциювыведенияключадлягенерациикриптографическогоключа (120) наосновепредоставленныхпараметров (106, 108); причеммаркер (116) содержитисключающееИЛИпорядковогономера иключаанонимности . 5 н. и 15 з.п. ф-лы, 10 ил.

45. 发明专利

DK2291946T3 Generering af krypteringsnøgle 未知
公开(公告)号：DK2291946T3
公开(公告)日：2013-03-18
申请号：DK08784926
申请日：2008-07-21
申请人： ERICSSON TELEFON AB L M
发明人： NORRMAN KARL , NAESLUND MATS
IPC分类号： H04L9/08 , H04W12/02

46. 发明专利

AT556525T 未知
公开(公告)号：AT556525T
公开(公告)日：2012-05-15
申请号：AT08774596
申请日：2008-07-01
申请人： ERICSSON TELEFON AB L M
发明人： BLOM ROLF , NORRMAN KARL , LINDSTROEM MAGNUS
IPC分类号： H04L29/06 , H04W12/04
摘要： In a method and a system for providing secure communication in a cellular radio system radio base station key is generated by determining a set of data bits known to both the UE and the radio base station, and creating the radio base station key in response to the determined set of data.

47. 发明专利

PL2191608T3 Sposób i urządzenie w systemie telekomunikacyjnym 未知
公开(公告)号：PL2191608T3
公开(公告)日：2012-01-31
申请号：PL08767152
申请日：2008-05-20
申请人： ERICSSON TELEFON AB L M
发明人： BLOM ROLF , MILDH GUNNAR , NORRMAN KARL
IPC分类号： H04L9/32 , H04L9/08 , H04L29/06 , H04W12/04

48. 发明专利

AU2007229977B2 A method and apparatus for handling keys used for encryption and integrity 未知
公开(公告)号：AU2007229977B2
公开(公告)日：2011-02-24
申请号：AU2007229977
申请日：2007-03-23
申请人： ERICSSON TELEFON AB L M
发明人： NORRMAN KARL , BLOM ROLF , NASLUND MATS
IPC分类号： H04L29/06
摘要： A method and an arrangement for providing keys for protecting communication between a terminal (300) and service points in a communication network. A basic key (Ik) is first established with a service control node (304) when the terminal has entered the network. An initial modified key (Ik 1 ) is then created in both the service control node and the terminal, by applying a predetermined first function (f) to at least the basic key and an initial value of a key version parameter (v). The initial modified key is sent to a first service point (302), such that it can be used to protect communication between the terminal and the first service point. When the terminal switches to a second service point (306), the first service point and the terminal both create a second modified key (Ik 2 ) by applying a predetermined second function (g) to the initial modified key, and the first service point sends the second modified key to the second service point.

49. 发明专利

CL2009001359A1 Método para generar una clave criptográfica para la protección de la comunicación entre dos entidades, realizada por la primera entidad como parte de una operación distribuida de seguridad iniciada por la segunda entidad; dispositivo; equipo; sistema. 未知
公开(公告)号：CL2009001359A1
公开(公告)日：2010-12-03
申请号：CL2009001359
申请日：2009-06-04
申请人： ERICSSON TELEFON AB L M
发明人： NÄSLUND MATS , NORRMAN KARL
IPC分类号： H04L9/08 , H04W12/02
摘要： UN MÉTODO Y DISPOSITIVO PARA GENERAR UNA CLAVE CRIPTOGRÁFICA PARA LA PROTECCIÓN DE LA COMUNICACIÓN ENTRE DOS ENTIDADES, REALIZADA POR LA PRIMERA ENTIDAD COMO PARTE DE UNA OPERACIÓN DISTRIBUIDA DE SEGURIDAD INICIADA POR LA SEGUNDA ENTIDAD. EL MÉTODO COMPRENDE PROPORCIONAR A LO MENOS DOS PARÁMETROS, EN DONDE EL PRIMER PARÁMETRO COMPRENDE O SE DERIVA DESDE UN CONJUNTO DE CLAVES CRIPTOGRÁFICAS QUE SON COMPUTADAS POR LA PRIMERA ENTIDAD, EJECUTANDO LA OPERACIÓN DE SEGURIDAD, Y EL SEGUNDO PARÁMETRO COMPRENDE O SE DERIVA DESDE UN SÍMBOLO QUE TIENE UN VALOR DIFERENTE CADA VEZ QUE LA OPERACIÓN DE SEGURIDAD ES INICIADA POR LA SEGUNDA ENTIDAD PARA LA PRIMERA ENTIDAD; Y APLICAR UNA FUNCIÓN DE DERIVACIÓN DE CLAVE, PARA GENERAR UNA CLAVE CRIPTOGRÁFICA BASADA EN LOS PARÁMETROS PROPORCIONADOS; DONDE EL SÍMBOLO COMPRENDE OR EXCLUSIVO DE UN NÚMERO DE SECUENCIA Y UNA CLAVE DE ANONIMATO .

50. 发明专利

AT439711T 未知
公开(公告)号：AT439711T
公开(公告)日：2009-08-15
申请号：AT06784170
申请日：2006-09-08
申请人： ERICSSON TELEFON AB L M
发明人： NAESLUND MATS , RAITH KRISTER , LEHTOVIRTA VESA , NORRMAN KARL
IPC分类号： H04L9/12
摘要： Methods for cryptographic synchronization of data packets. A roll-over counter (ROC) value is periodically appended to and transmitted with a data packet when a function of the packet sequence number equals a predetermined value. The ROC effectively synchronizes the cryptographic transformation of the data packets. Although the disclosed methods are generally applicable to many transmission protocols, they are particularly adaptable for use in systems wherein the data packets are transmitted to a receiver using the Secure Real-Time Transport Protocol (SRTP) as defined in Internet Engineering Task Force (IETF) Request for Comments (RFC) 3711.

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