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    • 4. 发明申请
    • METHOD AND APPARATUS FOR COLLABORATIVE CONTEXT RECOGNITION
    • 用于协同语境识别的方法和装置
    • WO2012037725A1
    • 2012-03-29
    • PCT/CN2010/077201
    • 2010-09-21
    • NOKIA CORPORATIONCAO, HappiaTIAN, JileiYAN, Zheng
    • CAO, HappiaTIAN, JileiYAN, Zheng
    • H04W4/02
    • H04L67/22H04L67/306H04W4/02H04W4/08
    • Techniques for collaborative context recognition include determining a plurality of groups of user types. Each different group is associated with a corresponding different range of values for an attribute of a user. First data is received, which indicates context data for a device and a value of the attribute for a user of the device. A particular group of user types to which the user belongs is determined based on the value of the attribute for the user. A context label based on the context data and the particular group is determined to be sent. Some techniques include determining a value of an attribute and context data based on context measurements. First data that indicates the context data and the value of the attribute is determined to be sent. A context label based on the context data and the value of the attribute is received.
    • 用于协作上下文识别的技术包括确定多组用户类型。 每个不同的组与用户的属性的相应的不同范围的值相关联。 接收到第一数据,其指示设备的上下文数据和设备的用户的属性值。 基于用户的属性值确定用户所属的特定用户类型组。 确定基于上下文数据和特定组的上下文标签被发送。 一些技术包括基于上下文测量来确定属性和上下文数据的值。 指定上下文数据的第一数据和属性的值被确定为发送。 接收基于上下文数据和属性值的上下文标签。
    • 6. 发明申请
    • PRESERVATION OF USER DATA PRIVACY IN A NETWORK
    • 保留网络中的用户数据隐私
    • WO2011070393A1
    • 2011-06-16
    • PCT/IB2009/055561
    • 2009-12-07
    • NOKIA CORPORATIONNOKIA INC.YAN, Zheng
    • YAN, Zheng
    • H04W8/24G06F21/00
    • H04L63/0421G06F21/6254H04W8/18H04W8/24
    • An example apparatus is provided that receives a pseudonym and encrypted identifier, where the pseudonym is of a user's personal data. The pseudonym has been generated using a first secret key, and the encrypted identifier has been generated by encrypting the identifier using a second secret key. The first and second secret keys are known to other user(s) authorized to access the data, and are unknown to the apparatus. The operations also include storing the personal data in a database under the pseudonym, and indexed by the encrypted identifier. The keys used for encryption and pseudorandom generation can be provided by a second apparatus (e.g. an offline security manager), which may employ a proxy re-encryption scheme to provide proper keys to the apparatus based on access policies. Only the authorized users can decrypt the keys with their private keys, thus can query the user records stored in the apparatus.
    • 提供了一种示例设备,其接收假名和加密标识符,其中假名是用户的个人数据。 已经使用第一秘密密钥生成了假名,并且通过使用第二秘密密钥加密标识符来生成加密的标识符。 第一和第二秘密密钥对被授权访问数据的其他用户是已知的,并且对于该设备是未知的。 这些操作还包括将个人数据以假名存储在数据库中,并由加密的标识符进行索引。 用于加密和伪随机生成的密钥可以由第二设备(例如,离线安全管理器)提供,第二设备可以使用代理重新加密方案来基于访问策略向设备提供适当的密钥。 只有经授权的用户才能使用其私钥对密钥进行解密,从而可以查询存储在设备中的用户记录。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR PROVIDING SECURE COMMUNICATIONS BASED ON TRUST EVALUATIONS IN A DISTRIBUTED MANNER
    • 基于分布式手段信任评估提供安全通信的方法和装置
    • WO2014059622A1
    • 2014-04-24
    • PCT/CN2012/083081
    • 2012-10-17
    • NOKIA CORPORATIONYAN, Zheng
    • YAN, Zheng
    • H04L9/14
    • H04L63/0428H04L9/0825H04L9/0847H04L9/14H04L63/061H04L63/065H04L2209/24H04L2463/062
    • An approach is provided for providing secure communications based on trust evaluation in a distributed manner. A method can comprises: sending data to a plurality of devices, the data being encrypted with a communication key; encrypting the communication key with public attribute keys associated with attributes, wherein the attributes comprising at least one trust level related attribute representing an access condition for the data based on a trust level; evaluating a trust level of each device of the plurality of devices, to identify eligible devices of the plurality of devices whose trust levels satisfy the access condition; sending the encrypted communication key to the plurality of devices; and sending secret attribute keys associated with the attributes to each device of the eligible devices for decrypting the encrypted communication key, the secret attribute keys being personalized for the each device of the eligible devices.
    • 提供了一种以分布式方式提供基于信任评估的安全通信的方法。 一种方法可以包括:向多个设备发送数据,所述数据用通信密钥加密; 使用与属性相关联的公共属性密钥来加密通信密钥,其中所述属性包括表示基于信任级别的数据的访问条件的至少一个信任级相关属性; 评估所述多个设备中的每个设备的信任级别,以识别其信任级别满足所述访问条件的所述多个设备中的合格设备; 将所述加密通信密钥发送到所述多个设备; 以及将与所述属性相关联的秘密属性密钥发送到所述合格设备的每个设备,以对所述加密的通信密钥进行解密,所述秘密属性密钥对所述合格设备的每个设备进行个性化。