PROTECTING AGAINST OUT-OF-BOUNDS BUFFER REFERENCES

    公开(公告)号:US20210110040A1

    公开(公告)日:2021-04-15

    申请号:US16601633

    申请日:2019-10-15

    IPC分类号: G06F21/57 G06F9/38 G06F9/30

    摘要: In an approach to protecting against out-of-bounds buffer references, an apparatus comprises one or more processor cores and a bounds-checking functional unit in each processor core configured to manage bounds information for one or more memory buffers. When a buffer is allocated, an address range of the buffer is stored. When a pointer is assigned an address within the address range of the buffer, the address range of the buffer is associated with the pointer. When the pointer is used to compute an address for an operation, whether the address for the operation is within the address range associated with the pointer is determined. If the address is not within the address range associated with the pointer, signaling that an error has occurred.

    Secure management of a smart card
    8.
    发明授权
    Secure management of a smart card 有权
    安全管理智能卡

    公开(公告)号:US09516021B2

    公开(公告)日:2016-12-06

    申请号:US14945485

    申请日:2015-11-19

    摘要: A smart card includes a processing circuit, a memory that contains a protected object, an activity detector that receives a signal that describes a planned activity of a person who is in physical possession of the smart card, and an activity analyzer that evaluates features of the planned activity. In response to the activity analyzer determining that a predefined risk associated with the planned activity exceeds a predetermined value, the activity analyzer issues an instruction to a user to provide a biomarker to a biosensor. A blending logic blends real-time biometric data with a security object to generate a hybrid security object. A conversion logic uses the hybrid security object to convert a protected object into a usable object that can be utilized by the processing circuit within the smart card. A matrix barcode generator generates a matrix barcode that contains information about the user of the smart card.

    摘要翻译: 智能卡包括处理电路,包含受保护对象的存储器,接收描述物理拥有智能卡的人的计划活动的信号的活动检测器以及评估所述智能卡的特征的活动分析器 计划活动。 响应于活动分析器确定与计划活动相关联的预定风险超过预定值,活动分析器向用户发出指令以向生物传感器提供生物标志物。 混合逻辑将实时生物特征数据与安全对象混合以生成混合安全对象。 转换逻辑使用混合安全对象将受保护对象转换成可由智能卡内的处理电路利用的可用对象。 矩阵条形码生成器生成包含关于智能卡的用户的信息的矩阵条形码。