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1. 发明申请

US20060161978A1 Software security based on control flow integrity 失效
公开(公告)号：US20060161978A1
公开(公告)日：2006-07-20
申请号：US11036121
申请日：2005-01-14
申请人： Martin Abadi , Mihai-Dan Budiu , Ulfar Erlingsson , Jay Ligatti
发明人： Martin Abadi , Mihai-Dan Budiu , Ulfar Erlingsson , Jay Ligatti
IPC分类号： G06F12/14
CPC分类号： G06F21/54 , G06F21/52 , G06F21/566
摘要： Software control flow integrity is provided by embedding identifying bit patterns at computed control flow instruction sources and destinations. The sources and destinations of computed control flow instructions are determined with reference to a control flow graph. The identifying bit patterns are compared during software execution, and a match between a source and a respective destination ensures control flow consistent with the control flow graph. Security measures are implemented when the comparison results in a mismatch, indicating that control flow has deviated from the anticipated course.

2. 发明申请

US20060174077A1 Software memory access control 有权
标题翻译：软件内存访问控制
公开(公告)号：US20060174077A1
公开(公告)日：2006-08-03
申请号：US11036801
申请日：2005-01-14
申请人： Martin Abadi , Ulfar Erlingsson , Jay Ligatti , Mihai-Dan Budiu
发明人： Martin Abadi , Ulfar Erlingsson , Jay Ligatti , Mihai-Dan Budiu
IPC分类号： G06F12/14
CPC分类号： G06F12/1458
摘要： Software memory access control is provided by associating instruction areas with memory areas such that instruction areas are not permitted to access memory areas with which they are not associated. Checks may be inserted in the instruction areas to ensure that data provided by a memory group is provided by an associated memory area. Additionally, control flow integrity for the instruction areas may be provided by embedding identifying bit patterns within computed control flow instructions contained in the instruction groups. In this way, control flow of the instruction areas may be provided, thus preventing diversion of control flow and minimizing required checks.
摘要翻译：通过将指令区域与存储区域相关联来提供软件存储器访问控制，使得指令区域不被允许访问与它们不相关联的存储器区域。可以在指令区域中插入检查，以确保由存储器组提供的数据由相关联的存储器区域提供。此外，可以通过在包含在指令组中的计算的控制流指令内嵌入识别位模式来提供指令区域的控制流完整性。以这种方式，可以提供指令区域的控制流程，从而防止控制流的转移并使所需的检查最小化。

3. 发明授权

US08136091B2 Architectural support for software-based protection 有权
标题翻译：基于软件保护的架构支持
公开(公告)号：US08136091B2
公开(公告)日：2012-03-13
申请号：US11700451
申请日：2007-01-31
申请人： Ulfar Erlingsson , Martin Abadi , Mihai-Dan Budiu
发明人： Ulfar Erlingsson , Martin Abadi , Mihai-Dan Budiu
IPC分类号： G06F9/44 , G06F9/45 , G06F11/00 , G06F7/04 , H04L29/06 , H04L9/32
CPC分类号： G06F12/1441 , G06F21/52
摘要： Instruction set architecture (ISA) extension support is described for control-flow integrity (CFI) and for XFI memory protection. ISA replaces CFI guard code with single instructions. ISA support is provided for XFI in the form of bounds-check instructions. Compared to software guards, hardware support for CFI and XFI increases the efficiency and simplicity of enforcement. In addition, the semantics for CFI instructions allows more precise static control-flow graph encodings than were possible with a prior software CFI implementation.
摘要翻译：描述了用于控制流完整性（CFI）和XFI内存保护的指令集架构（ISA）扩展支持。 ISA用单个指令替代了CFI防护码。以边界检查指示的形式为XFI提供ISA支持。与软件卫士相比，CFI和XFI的硬件支持提高了执行效率和简单性。此外，CFI指令的语义允许更精确的静态控制流程图编码，而不是以前的软件CFI实现。

4. 发明授权

US07577992B2 Software security based on control flow integrity 失效
标题翻译：基于控制流程完整性的软件安全
公开(公告)号：US07577992B2
公开(公告)日：2009-08-18
申请号：US11036121
申请日：2005-01-14
申请人： Martin Abadi , Mihai-Dan Budiu , Ulfar Erlingsson , Jay A. Ligatti
发明人： Martin Abadi , Mihai-Dan Budiu , Ulfar Erlingsson , Jay A. Ligatti
IPC分类号： G06F21/22 , G06F9/44 , G06F11/30
CPC分类号： G06F21/54 , G06F21/52 , G06F21/566
摘要： Software control flow integrity is provided by embedding identifying bit patterns at computed control flow instruction sources and destinations. The sources and destinations of computed control flow instructions are determined with reference to a control flow graph. The identifying bit patterns are compared during software execution, and a match between a source and a respective destination ensures control flow consistent with the control flow graph. Security measures are implemented when the comparison results in a mismatch, indicating that control flow has deviated from the anticipated course.
摘要翻译：通过在计算出的控制流指令源和目的地嵌入识别位模式来提供软件控制流完整性。计算出的控制流程指令的来源和目的地是参考控制流程图来确定的。在软件执行期间比较识别位模式，并且源与相应目的地之间的匹配确保与控制流程图一致的控制流程。当比较导致不匹配时，实施安全措施，表明控制流量偏离了预期的过程。

5. 发明申请

US20080184016A1 Architectural support for software-based protection 有权
标题翻译：基于软件保护的架构支持
公开(公告)号：US20080184016A1
公开(公告)日：2008-07-31
申请号：US11700451
申请日：2007-01-31
申请人： Ulfar Erlingsson , Martin Abadi , Mihai-Dan Budiu
发明人： Ulfar Erlingsson , Martin Abadi , Mihai-Dan Budiu
IPC分类号： G06F9/00
CPC分类号： G06F12/1441 , G06F21/52
摘要： Instruction set architecture (ISA) extension support is described for control-flow integrity (CFI) and for XFI memory protection. ISA replaces CFI guard code with single instructions. ISA support is provided for XFI in the form of bounds-check instructions. Compared to software guards, hardware support for CFI and XFI increases the efficiency and simplicity of enforcement. In addition, the semantics for CFI instructions allows more precise static control-flow graph encodings than were possible with a prior software CFI implementation.
摘要翻译：描述了用于控制流完整性（CFI）和XFI内存保护的指令集架构（ISA）扩展支持。 ISA用单个指令替代了CFI防护码。以边界检查指示的形式为XFI提供ISA支持。与软件卫士相比，CFI和XFI的硬件支持提高了执行效率和简单性。此外，CFI指令的语义允许更精确的静态控制流程图编码，而不是以前的软件CFI实现。

6. 发明授权

US07337291B2 Software memory access control 有权
标题翻译：软件内存访问控制
公开(公告)号：US07337291B2
公开(公告)日：2008-02-26
申请号：US11036801
申请日：2005-01-14
申请人： Martin Abadi , Ulfar Erlingsson , Jay A. Ligatti , Mihai-Dan Budiu
发明人： Martin Abadi , Ulfar Erlingsson , Jay A. Ligatti , Mihai-Dan Budiu
IPC分类号： G06F12/14 , G06F13/00
CPC分类号： G06F12/1458
摘要： Software memory access control is provided by associating instruction areas with memory areas such that instruction areas are not permitted to access memory areas with which they are not associated. Checks may be inserted in the instruction areas to ensure that data provided by a memory group is provided by an associated memory area. Additionally, control flow integrity for the instruction areas may be provided by embedding identifying bit patterns within computed control flow instructions contained in the instruction groups. In this way, control flow of the instruction areas may be provided, thus preventing diversion of control flow and minimizing required checks.
摘要翻译：通过将指令区域与存储区域相关联来提供软件存储器访问控制，使得指令区域不被允许访问与它们不相关联的存储器区域。可以在指令区域中插入检查，以确保由存储器组提供的数据由相关联的存储器区域提供。此外，可以通过在包含在指令组中的计算的控制流指令内嵌入识别位模式来提供指令区域的控制流完整性。以这种方式，可以提供指令区域的控制流程，从而防止控制流的转移并使所需的检查最小化。

7. 发明申请

US20110307423A1 DISTRIBUTED DECISION TREE TRAINING 有权
标题翻译：分布式决策树培训
公开(公告)号：US20110307423A1
公开(公告)日：2011-12-15
申请号：US12797430
申请日：2010-06-09
申请人： Jamie Shotton , Mihai-Dan Budiu , Andrew William Fitzgibbon , Mark Finocchio , Richard E. Moore , Duncan Robertson
发明人： Jamie Shotton , Mihai-Dan Budiu , Andrew William Fitzgibbon , Mark Finocchio , Richard E. Moore , Duncan Robertson
IPC分类号： G06F15/18 , G06K9/62
CPC分类号： G06K9/6282
摘要： A computerized decision tree training system may include a distributed control processing unit configured to receive input of training data for training a decision tree. The system may further include a plurality of data batch processing units, each data batch processing unit being configured to evaluate each of a plurality of split functions of a decision tree for respective data batch of the training data, to thereby compute a partial histogram for each split function, for each datum in the data batch. The system may further include a plurality of node batch processing units configured to aggregate the associated partial histograms for each split function to form an aggregated histogram for each split function for each of a subset of frontier tree nodes and to determine a selected split function for each frontier tree node by computing the split function that produces highest information gain for the frontier tree node.
摘要翻译：计算机化决策树训练系统可以包括配置成接收用于训练决策树的训练数据的输入的分布式控制处理单元。该系统还可以包括多个数据批处理单元，每个数据批处理单元被配置为评估用于训练数据的相应数据批的决策树的多个分离函数中的每一个，从而计算每个分割功能，用于数据批处理中的每个数据。该系统可以进一步包括多个节点批量处理单元，其被配置为针对每个分割函数聚合相关联的部分直方图，以形成用于边界树节点的子集中的每一个的每个分割函数的聚合直方图，并且为每个分割函数确定每个边缘树节点通过计算为边界树节点产生最高信息增益的分割函数。

8. 发明授权

US08543517B2 Distributed decision tree training 有权
标题翻译：分布式决策树训练
公开(公告)号：US08543517B2
公开(公告)日：2013-09-24
申请号：US12797430
申请日：2010-06-09
申请人： Jamie Shotton , Mihai-Dan Budiu , Andrew William Fitzgibbon , Mark Finocchio , Richard E. Moore , Duncan Robertson
发明人： Jamie Shotton , Mihai-Dan Budiu , Andrew William Fitzgibbon , Mark Finocchio , Richard E. Moore , Duncan Robertson
IPC分类号： G06F15/18
CPC分类号： G06K9/6282
摘要： A computerized decision tree training system may include a distributed control processing unit configured to receive input of training data for training a decision tree. The system may further include a plurality of data batch processing units, each data batch processing unit being configured to evaluate each of a plurality of split functions of a decision tree for respective data batch of the training data, to thereby compute a partial histogram for each split function, for each datum in the data batch. The system may further include a plurality of node batch processing units configured to aggregate the associated partial histograms for each split function to form an aggregated histogram for each split function for each of a subset of frontier tree nodes and to determine a selected split function for each frontier tree node by computing the split function that produces highest information gain for the frontier tree node.
摘要翻译：计算机化决策树训练系统可以包括配置成接收用于训练决策树的训练数据的输入的分布式控制处理单元。该系统还可以包括多个数据批处理单元，每个数据批处理单元被配置为评估用于训练数据的相应数据批的决策树的多个分离函数中的每一个，从而计算每个分割功能，用于数据批处理中的每个数据。该系统可以进一步包括多个节点批量处理单元，其被配置为针对每个分割函数聚合相关联的部分直方图，以形成用于边界树节点的子集中的每一个的每个分割函数的聚合直方图，并且为每个分割函数确定每个边缘树节点通过计算为边界树节点产生最高信息增益的分割函数。

9. 发明申请

US20080082644A1 DISTRIBUTED PARALLEL COMPUTING 审中-公开
标题翻译：分布式并行计算
公开(公告)号：US20080082644A1
公开(公告)日：2008-04-03
申请号：US11537506
申请日：2006-09-29
申请人： Michael A. Isard , Andrew D. Birrell , Mihai-Dan Budiu , Yuan Yu , Dennis C. Fetterly
发明人： Michael A. Isard , Andrew D. Birrell , Mihai-Dan Budiu , Yuan Yu , Dennis C. Fetterly
IPC分类号： G06F15/173
CPC分类号： H04L67/1097 , G06F9/5066
摘要： A general purpose high-performance distributed execution engine for coarse-grained data-parallel applications is proposed that allows developers to easily create large-scale distributed applications without requiring them to master concurrency techniques beyond being able to draw a graph of the data-dependencies of their algorithms. Based on the graph, a job manager intelligently distributes the work load so that system resources are used efficiently. The system is designed to scale from a small cluster of a few computers, or the multiple CPU cores on a powerful single computer, up to a data center containing thousands of servers.
摘要翻译：提出了一种用于粗粒度数据并行应用程序的通用高性能分布式执行引擎，允许开发人员轻松创建大规模分布式应用程序，而不需要它们掌握并发技术，除了能够绘制数据依赖关系的图形他们的算法。基于该图，作业管理器智能地分配工作负载，以便有效地使用系统资源。该系统旨在从几个计算机的小型集群或强大的单个计算机上的多个CPU核心扩展到包含数千台服务器的数据中心。

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