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1. 发明申请

US20140095918A1 Method and Apparatus for Maintaining Secure Time 有权
标题翻译：维持安全时间的方法和装置
公开(公告)号：US20140095918A1
公开(公告)日：2014-04-03
申请号：US13630222
申请日：2012-09-28
申请人： Per Ståhl , Håkan Englund , Martin Hovang , Hervé Sibert
发明人： Per Ståhl , Håkan Englund , Martin Hovang , Hervé Sibert
IPC分类号： G06F21/02
CPC分类号： G06F21/725 , G06F1/14 , G06F21/74
摘要： An exemplary method of maintaining secure time in a computing device is disclosed in which one or more processors implements a Rich Execution Environment (REE), and a separate Trusted Execution Environment (TEE). The TEE maintains a real-time clock (RTC) that provides a RTC time to the REE. A RTC offset is stored in non-volatile memory, with the RTC offset indicating a difference between the RTC time and a protected reference (PR) time. Responsive to a request from the REE to read the RTC time, a current RTC time is returned to the REE. Responsive to a request from the REE to adjust the RTC time, the RTC time and the corresponding RTC offset are adjusted by a same amount, such that the PR time is not altered by the RTC adjustment. An exemplary computing device operable to implement the method is also disclosed.
摘要翻译：公开了一种在计算设备中维护安全时间的示例性方法，其中一个或多个处理器实现富执行环境（REE）和单独的可信执行环境（TEE）。 TEE维护一个实时时钟（RTC），为REE提供RTC时间。 RTC偏移量存储在非易失性存储器中，RTC偏移指示RTC时间和受保护参考（PR）时间之间的差异。响应REE阅读RTC时间的请求，当前的RTC时间将返回给REE。响应于REE调整RTC时间的请求，RTC时间和相应的RTC偏移量调整相同的量，使得PR时间不被RTC调整改变。还公开了可操作以实现该方法的示例性计算设备。

2. 发明授权

US09226140B2 Security feature negotiation between network and user terminal 有权
标题翻译：网络和用户终端之间的安全功能协商
公开(公告)号：US09226140B2
公开(公告)日：2015-12-29
申请号：US13498154
申请日：2009-09-28
申请人： Thomas Johansson , Håkan Englund , Mats Näslund
发明人： Thomas Johansson , Håkan Englund , Mats Näslund
IPC分类号： H04M1/66 , H04W12/02 , H04W12/04 , H04W12/12
CPC分类号： H04W48/16 , H04J11/00 , H04L9/3242 , H04W12/02 , H04W12/04 , H04W12/08 , H04W12/12 , H04W76/10 , H04W88/02
摘要： A Mobile Station (MS), a Base Station System (BSS) and a Mobile Switching Center (MSC) of a cellular network, such as GSM, are disclosed. According to one embodiment, the MS is arranged to carry out one or more security features in its communication with the network. For example, the MS may be arranged to: • by means of information received in a signalling message (0) from the network, discover if the network supports one or more of said security features, • exchange information with the network in order to enable the use of one or more of the above-mentioned supported security features in the communication, • carry out at least one of the one or more of the supported security features in the communication with the network.
摘要翻译：公开了诸如GSM的蜂窝网络的移动站（MS），基站系统（BSS）和移动交换中心（MSC）。根据一个实施例，MS被布置为在与网络的通信中执行一个或多个安全特征。例如，MS可以被布置为：通过从网络在信令消息（0）中接收到的信息，发现网络是否支持一个或多个所述安全特征，•与网络交换信息，以便能够在通信中使用一个或多个上述支持的安全特征，•在与网络的通信中执行所支持的一个或多个安全特征中的至少一个。

3. 发明申请

US20120190343A1 SECURITY FEATURE NEGOTIATION BETWEEN NETWORK AND USER TERMINAL 有权
标题翻译：网络和用户终端之间的安全特征协商
公开(公告)号：US20120190343A1
公开(公告)日：2012-07-26
申请号：US13498154
申请日：2009-09-28
申请人： Thomas Johansson , Håkan Englund , Mats Näslund
发明人： Thomas Johansson , Håkan Englund , Mats Näslund
IPC分类号： H04W12/08 , H04W12/06
CPC分类号： H04W48/16 , H04J11/00 , H04L9/3242 , H04W12/02 , H04W12/04 , H04W12/08 , H04W12/12 , H04W76/10 , H04W88/02
摘要： A Mobile Station (MS), a Base Station System (BSS) and a Mobile Switching Centre (MSC) of a cellular network, such as GSM, are disclosed. According to one embodiment, the MS is arranged to carry out one or more security features in its communication with the network. For example, the MS may be arranged to: by means of information received in a signalling message (0) from the network, discover if the network supports one or more of said security features, exchange information with the network in order to enable the use of one or more of the above-mentioned supported security features in the communication, carry out at least one of the one or more of the supported security features in the communication with the network.
摘要翻译：公开了诸如GSM的蜂窝网络的移动站（MS），基站系统（BSS）和移动交换中心（MSC）。根据一个实施例，MS被布置为在与网络的通信中执行一个或多个安全特征。例如，MS可以被布置为：通过在来自网络的信令消息（0）中接收到的信息，发现网络是否支持所述安全特征中的一个或多个，与网络交换信息，以便能够使用通信中的一个或多个上述支持的安全特征中的一个或多个支持的安全特征中的至少一个与网络进行通信。

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