Huawei Technologies Co., Limited

Emc Corporation

Semiconductor Components Industries, LLC

Haibo Chen

Jun Li

Wenbo Mao

Fei Wang

Nan Wang

Jian Mg Cheng

Yu Shen

Yubin Xia

Bin Tu

Zhichao Hua

Wenhao Li

Shanxi Chen

Jingcheng Zhang

Yutao Liu

Xiaoxin Wu

Ambroise Popper

Zhengde Zhai

Miao Xie

Marianna Carrera

Kan Hu

Cheng Tan

Xinran Wang

Peitao Shi

Qiang Wang

Hongjiang Zhao

Zhenning Wang

Dong Du

Dental model

A resource scheduling method implemented by a device, where the resource scheduling method includes determining a load characteristic of a frame drawing thread, where the frame drawing thread draws an image frame determining a target resource scheduling manner based on the load characteristic, and scheduling a resource for the frame drawing thread in the target resource scheduling manner.

Resource scheduling method and terminal device

A security control method and a computer system are provided. A first domain and a second domain are deployed in the computer system, the second domain is more secure than the first domain, a program is deployed in the first domain, and a control flow management module and an audit module are deployed in the second domain. The second domain is more secure than the first domain. When the program in the first domain is executed, the control flow management module obtains control flow information by using a tracer. The audit module audits the to-be-audited information according to an audit rule, and when the to-be-audited information matches the audit rule, determines that the audit succeeds and then allows the first domain to perform a subsequent operation, for example, to access a secure program in the second domain.

Security control method and computer system

A wireless network device comprises a wireless signal driver, an application-driver framework that includes a bidirectional interface and an application interface. The application-driver framework is configured for application-agnostic and driver-agnostic communication. The bidirectional interface communicatively couples the wireless signal driver to the application-driver framework. The bidirectional interface includes an abstraction layer via which driver-agnostic command signals and driver-agnostic event signals are communicated with the application-driver framework and via which driver-specific command signals and driver-specific event signals are communicated with the wireless signal driver. The application interface is configured to interface with applications and with the application-driver framework. The application interface is configured to communicate application-agnostic command signals and application-agnostic event signals with the application-driver framework and to communicate application-specific event signals and application-specific command signals with the one or more applications and the application-driver framework.

Software framework and development platform for Wi-Fi chipsets

A trust zone-based operating system including a secure world subsystem that runs a trusted execution environment TEE, a TEE monitoring area, and a security switching apparatus is provided. When receiving a sensitive operation request sent by a trusted application TA in the TEE, the TEE writes a sensitive instruction identifier and an operation parameter of the sensitive operation request into a general-purpose register, and sends a switching request to the security switching apparatus. The security switching apparatus receives the switching request, and switches a running environment of the secure world subsystem from the TEE to the TEE monitoring area. The TEE monitoring area stores a sensitive instruction in the operating system. After the running environment is switched, the corresponding first sensitive instruction is called based on the first sensitive instruction identifier, and a corresponding first sensitive operation is performed by using the first sensitive instruction and the first operation parameter.

Trust zone-based operating system and method

The disclosure relates to the communications technologies field, and in particular, to a data migration method and apparatus, to implement data migration in an enclave page cache (EPC), to improve consistency between data of an application program before migration and that after migration. The method includes: obtaining, by a source host, a migration instruction, where the migration instruction is used to instruct to migrate a target application created with an enclave to a destination host; invoking, by the source host, a migration control thread preset in the enclave of the target application, to write running status data of the target application in an EPC into target memory of the source host, where the target memory is an area other than the EPC in memory of the source host; and sending, by the source host, the running status data of the target application in the target memory to the destination host.

Data migration method and apparatus

The present disclosure provides an execution environment virtualization method. The method includes: creating an ordinary virtual machine and a trusted virtual machine for a user in the ordinary execution environment, where the ordinary virtual machine executes an ordinary application of the user, and the trusted virtual machine executes a security application of the user; allocating memories to the ordinary virtual machine and the trusted virtual machine; establishing a mapping relationship between an ordinary memory of the ordinary virtual machine and a physical memory, to obtain a first memory mapping table; and establishing a mapping relationship between a virtual physical memory of the trusted virtual machine and a physical memory, to obtain a second memory mapping table. Therefore, the ordinary application and the security application run in execution environments independent of each other, thereby ensuring data security of the user.

Execution environment virtualization method and apparatus and virtual execution environment access method and apparatus

A computer processing node is described that is configured to perform a control flow integrity (CFI) method on a protected process operating on the processing node. The CFI method includes intercepting a system call originating from execution of the protected process executing in the runtime environment. A fast path operating within a kernel of the computer system accesses, from a kernel memory, a processor trace packet corresponding to the system call. The fast path attempts to establish a match between the processor trace packet and a program control flow (edge) entry within a credit-labeled control flow graph (CFG) definition having an associated credit value. The credit value represents a degree to which the program control flow is credible. Thereafter, the method further includes invoking, after the matching, a slow path for further processing of the processor trace packet if the associated credit value does not meet a specified threshold, and otherwise provide an indication to permit execution of the system call.

Processor trace-based enforcement of control flow integrity of a computer system

Embodiments of the present disclosure disclose a secure communication method for a mobile terminal and a mobile terminal. The secure communication method may include: when a wireless communication connection is established between the mobile terminal and another mobile terminal, and the wireless communication connection meets a preset security processing trigger condition, prohibiting, by means of setting, a program in a common virtual kernel from accessing a shared memory between a secure virtual kernel and the common virtual kernel and accessing a peripheral that needs to be called for the wireless communication connection; performing, by using the secure virtual kernel, preset policy-based processing on communication content corresponding to the wireless communication connection; and outputting, by using the secure virtual kernel, communication content obtained by performing the preset policy-based processing.

Communication method for mobile terminal and mobile terminal

A data protection method includes detecting whether critical code of an application has been called, with the critical code being used to access critical data; switching from a preconfigured first extended page table (EPT) to a preconfigured second EPT according to preset trampoline code corresponding to the critical code when an operating system calls the critical code using the first EPT, wherein memory mapping relationships of the critical data and the critical code are not configured in the first EPT, the memory mapping relationships of the critical data and the critical code are configured in the second EPT, and the critical data and the critical code are separately stored in independent memory areas; and switching from the second EPT back to the first EPT according to the trampoline code after calling and executing the critical code using the second EPT.

Data protection method and apparatus

A secure interaction method includes receiving, by a processor, a secure processing request sent by an application program, where the application program operates in a normal mode, and the processor operates in the normal mode when receiving the secure processing request, switching, by the processor, from the normal mode to a secure mode according to the secure processing request, reading, by the processor operating in the secure mode, data information into a memory operating in the secure mode, where the data information is data that the processor operating in the secure mode generates after parsing the secure processing request, and controlling, by the processor operating in the secure mode, an accessed device to operate according to the data information stored in the memory operating in the secure mode.

Secure interaction method and device

A data processing method and apparatus, where the method includes acquiring a first network data packet that is sent by a target application that runs in an untrusted execution domain, where the first network data packet includes a first identifier; acquiring, in a trusted execution domain, first data corresponding to the first identifier; generating, in the trusted execution domain, a second network data packet according to the first data and the first network data packet; performing, in the trusted execution domain, encryption on the second network data packet by using a first session key to acquire an encrypted second network data packet; and sending the encrypted second network data packet to the target server. The data processing method and apparatus in the embodiments of the present invention can effectively prevent an attacker from stealing data.

Data processing method and apparatus

The present disclosure relates to the field of information technologies and discloses a method and an apparatus for implementing virtual machine introspection. The method provided in the present disclosure may further include: determining to-be-checked data in a virtual machine; starting to read the to-be-checked data, saving a copy of the read to-be-checked data, and storing a storage address of the read to-be-checked data in a hardware transactional memory, so that the hardware transactional memory is capable of monitoring the read to-be-checked data according to the storage address; when the read to-be-checked data is modified, stop reading the to-be-checked data, and delete the copy; and when reading the to-be-checked data is completed and it is not detected that the read to-be-checked data is modified, performing security check on the copy. The method can be applied to virtual machine introspection.

Method and apparatus for implementing virtual machine introspection

An isolation method for a management virtual machine and an apparatus, which resolves problems that performance of communication between service components is deteriorated, more resources are required for running a virtual machine, and security of the service components is relatively low. The method includes: acquiring a guest identifier; searching, according to the guest identifier, the management virtual machine for a kernel virtual machine; when the kernel virtual machine is not found in the management virtual machine, creating the kernel virtual machine in the management virtual machine; dividing a service provided for a guest virtual machine by the kernel virtual machine into multiple service components; and running the multiple service components in execution environments corresponding to permission of the service components, where the kernel virtual machine includes the multiple execution environments, and the multiple execution environment have different permission.

Isolation method for management virtual machine and apparatus

A method, an apparatus, a terminal, and a server for synchronizing a terminal mirror are provided. The method includes: obtaining, by a terminal, multiple input events during running of application software; aggregating the multiple input events to obtain an aggregate event; and transmitting the aggregate event to the server, so that after parsing the aggregate event to obtain the multiple input events, the server processes the multiple input events by using a virtual machine that is of the terminal and set on the server, so as to obtain user data generated during the running of the application software. In the present invention, the terminal transmits the input events to the server in an event-driven manner, so that the server obtains the user data that is the same as that on the terminal that runs the application software, thereby ensuring that the server can back up complete user data.

Growing community of inventors

Shanghai, China

Haibo Chen