METHOD AND APPARATUS FOR MULTIPLE REGISTRATIONS

    公开(公告)号:US20190223063A1

    公开(公告)日:2019-07-18

    申请号:US16246349

    申请日:2019-01-11

    Abstract: A user device having a security context with a first network based on a first key may establish a security context with a second network. In a method, the user device may generate a key identifier based on the first key and a network identifier of the second network. The user device may forward the key identifier to the second network for forwarding to the first network by the second network to enable the first network to identify the first key at the first network. The user device may receive a key count from the second network. The key count may be associated with a second key forwarded to the second network from the first network. The user device may generate the second key based on the first key and the received key count thereby establishing a security context between the second network and the user device.

    KEY AND COUNTER MANAGEMENT IN WIRELESS SYSTEMS

    公开(公告)号:US20250047479A1

    公开(公告)日:2025-02-06

    申请号:US18780348

    申请日:2024-07-22

    Abstract: Disclosed are wireless communications systems and techniques. For example, a wireless communication device (e.g., a user equipment (UE)) compares a first key identifier (generated from a key stored in a first storage unit, such as a universal subscriber identity module) to a second key identifier (stored in a second storage unit, such as non-volatile memory) to identify a mismatch between the key identifiers. Based on the mismatch, the device replaces, in the second storage unit, the second key identifier. In some examples, the device verifies integrity of a message using the key, replaces the second key identifier with the first key identifier, and updates a counter based on the message. In a second illustrative example, the device replaces the key with a replacement key, replaces the second key identifier with the third key identifier based on the replacement key, and resets a counter.

    METHOD AND APPARATUS FOR MULTIPLE REGISTRATIONS

    公开(公告)号:US20230231708A1

    公开(公告)日:2023-07-20

    申请号:US18094868

    申请日:2023-01-09

    CPC classification number: H04L9/088 H04W12/04

    Abstract: A user device having a security context with a first network based on a first key may establish a security context with a second network. In a method, the user device may generate a key identifier based on the first key and a network identifier of the second network. The user device may forward the key identifier to the second network for forwarding to the first network by the second network to enable the first network to identify the first key at the first network. The user device may receive a key count from the second network. The key count may be associated with a second key forwarded to the second network from the first network. The user device may generate the second key based on the first key and the received key count thereby establishing a security context between the second network and the user device.

    Securing Application Communication
    16.
    发明申请

    公开(公告)号:US20230093720A1

    公开(公告)日:2023-03-23

    申请号:US17931505

    申请日:2022-09-12

    Abstract: In embodiments of systems and methods for synchronous content presentation, a user equipment (UE) may generate a freshness parameter, generate a unique session key based on a first session key and the freshness parameter, and send the freshness parameter to a Network Application Function (NAF) of a network device in a configuration that will enable the NAF to generate the unique session key. The network device may receive the freshness parameter, receive from a Key Server Function (KSF) the first session key, and generate based on the freshness parameter and the first session key the unique session key. The UE and the network device may then conduct secure communications using the unique session key without exchanging the unique session key between the two devices.

    SYSTEM AND METHOD THAT FACILITATE STEERING OF ROAMING

    公开(公告)号:US20220150684A1

    公开(公告)日:2022-05-12

    申请号:US17649295

    申请日:2022-01-28

    Abstract: Aspects directed towards steering of roaming (SoR) are disclosed. In one example, a communication from a public land mobile network (PLMN) is received by a user equipment (UE) in which the communication indicates an acceptance of a UE registration with the PLMN. This example further includes performing a determination of whether an SoR indicator associated with a home PLMN (HPLMN) is embedded within the communication. The UE then manages PLMN selection according to the determination. In another example, a UE is configured to operate according to an SoR configuration in which the UE is configured to ascertain whether an SoR indicator is embedded within a communication from a PLMN. An SoR indicator associated with an HPLMN is then generated and subsequently transmitted from the HPLMN to the UE via the PLMN.

    METHOD AND APPARATUS FOR SECURING STRUCTURED PROXIMITY SERVICE CODES FOR RESTRICTED DISCOVERY
    19.
    发明申请
    METHOD AND APPARATUS FOR SECURING STRUCTURED PROXIMITY SERVICE CODES FOR RESTRICTED DISCOVERY 审中-公开
    用于安全限制性发现的结构化近似服务代码的方法和装置

    公开(公告)号:US20160302137A1

    公开(公告)日:2016-10-13

    申请号:US15076087

    申请日:2016-03-21

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE receives a discovery code and key information associated with the discovery code. A discovery message may be generated based on the discovery code. The UE transforms the discovery message using the key information. The UE then broadcasts the transformed discovery message. In a second configuration, the UE receives a first discovery code, key information associated with the first discovery code, and a discovery message containing a second discovery code. The UE unscrambles the discovery message using the key information to obtain the second discovery code. The first discovery code and the second discovery code are compared. If the first and second discovery codes match, the UE may check the integrity of the discovery message and/or remove confidentiality of the discovery message using the key information.

    Abstract translation: 提供了一种用于无线通信的方法,装置和计算机程序产品。 该装置可以是UE。 UE接收与发现代码相关联的发现代码和密钥信息。 可以基于发现代码生成发现消息。 UE使用密钥信息来转换发现消息。 然后,UE广播经变换的发现消息。 在第二配置中,UE接收第一发现代码,与第一发现代码相关联的密钥信息,以及包含第二发现代码的发现消息。 UE使用密钥信息来解密发现消息以获得第二发现码。 比较第一个发现代码和第二个发现代码。 如果第一和第二发现码匹配,则UE可以使用密钥信息来检查发现消息的完整性和/或去除发现消息的机密性。

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