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1. 发明授权

US08365243B1 Image leak prevention using geotagging 有权
标题翻译：图像泄漏预防使用地理标记
公开(公告)号：US08365243B1
公开(公告)日：2013-01-29
申请号：US12835763
申请日：2010-07-14
申请人： Minggang Lu , Pei Zhang , Jing Li , Wen Zhu
发明人： Minggang Lu , Pei Zhang , Jing Li , Wen Zhu
IPC分类号： G06F21/00
CPC分类号： G06F21/6209 , G06F21/10 , G06F2221/2111
摘要： Prevention of sensitive images such as photographs and video clips from being leaked from an organization uses geo-tagging metadata. A mobile computing device includes a software agent that implements a data loss prevention policy and a database of sensitive geographic areas defined by latitude and longitude coordinates. When an image is attempted to be stored on the device (or sent, received, renamed, copied, etc.) a software hook module detects the operation and obtains the geo-tagging metadata from the image for the agent. The agent compares the metadata of the image with each sensitive area found in its database to determine if the image was taken at a location within a sensitive area. If not, the operation is allowed, if so, the operation may be blocked, restricted or a warning may be sent to the user of the device or to another computer within the organization.
摘要翻译：防止从组织泄漏的敏感图像（如照片和视频剪辑）使用地理标记元数据。移动计算设备包括实现数据丢失预防策略的软件代理和由纬度和经度坐标定义的敏感地理区域的数据库。当尝试将图像存储在设备上（或发送，接收，重命名，复制等）时，软件挂钩模块检测操作，并从代理的图像中获取地理标记元数据。代理将图像的元数据与其数据库中找到的每个敏感区域进行比较，以确定图像是否在敏感区域内的某个位置拍摄。如果没有，则允许操作，如果是，可能会阻止，限制操作或向设备的用户或组织内的其他计算机发送警告。

2. 发明授权

US08286253B1 Data leakage prevention for resource limited device 有权
标题翻译：资源限制设备的数据泄漏预防
公开(公告)号：US08286253B1
公开(公告)日：2012-10-09
申请号：US12623934
申请日：2009-11-23
申请人： Minggang Lu , Pei Chang , Jing Li , Tian Fan , Wen Zhu
发明人： Minggang Lu , Pei Chang , Jing Li , Tian Fan , Wen Zhu
IPC分类号： G06F17/30
CPC分类号： G06F17/30575 , G06F21/6218
摘要： When a resource-limited device (such as a mobile telephone) joins a network associated with an enterprise, the agent in the device generates digital signatures for all the files in the device and sends them to an enterprise controller. The controller compares them to the global signature database; it filters out the sensitive digital signatures and feeds them back to the agent in the device. The agent receives the feedback of digital signatures and consolidates them into its own local signature database. The agent analyzes each file that is attempting to be output from the device according to the local signature database and DLP policy. If the signature of the file is present in the local database then the action to output file is blocked. If a new file is created on the device, the agent generates and sends its digital signature to the controller for inspection. If the signature is sensitive, this new digital signature will be placed into the local signature database. If the DLP controller updates the global signature database, the device will send its signatures once again for comparison.
摘要翻译：当资源有限的设备（如移动电话）加入与企业相关联的网络时，设备中的代理生成设备中所有文件的数字签名，并将其发送到企业控制器。控制器将它们与全局签名数据库进行比较; 它会过滤出敏感的数字签名，并将其反馈给设备中的代理。代理人收到数字签名的反馈，并将其合并到自己的本地签名数据库中。代理根据本地签名数据库和DLP策略分析试图从设备输出的每个文件。如果文件的签名存在于本地数据库中，那么输出文件的操作将被阻止。如果在设备上创建新文件，代理将生成并发送其数字签名给控制器进行检查。如果签名敏感，则将新的数字签名放入本地签名数据库。如果DLP控制器更新全局签名数据库，设备将再次发送其签名进行比较。

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