Abstract: The present application discloses a micro electrostatic purification device for resisting high humidity, including an ionization module, a micro electrostatic filter and a power supply module, the two ends of the insulating dielectric material in the cartridge carbon electrode length direction are installed inward respectively into the first electrode strip and the second electrode strip, and finally closed with a sealant, and the connection of the individual wire is sealed by filling sealant, to achieve the complete closure of the cartridge. The connection between the power module and the electrode strip, and the connection between the electrode contact piece and the external power supply are all completely sealed through the setting of the structure. And a current limitation protection circuit is provided to monitor the working current in real time and carry out current limitation protection when the instantaneous change of the working current exceeds the threshold.

Abstract: A disclosed example to protect memory from buffer overflow or underflow includes defining an implicit bound pointer based on an implicit bound pointer definition in a configuration file for a memory region; instrumenting object code with an implicit buffer bound check based on the implicit bound pointer; and generating hardened executable object code based on the object code, the implicit buffer bound check, and the implicit bound pointer, the implicit bound pointer located in the hardened executable object code during a compilation phase to facilitate loading the implicit bound pointer in a global bounds table during runtime for access by the implicit buffer bound check.

Abstract: A disclosed example to protect memory from buffer overflow or underflow includes defining an implicit bound pointer based on an implicit bound pointer definition in a configuration file for a memory region; instrumenting object code with an implicit buffer bound check based on the implicit bound pointer; and generating hardened executable object code based on the object code, the implicit buffer bound check, and the implicit bound pointer, the implicit bound pointer located in the hardened executable object code during a compilation phase to facilitate loading the implicit bound pointer in a global bounds table during runtime for access by the implicit buffer bound check.

Abstract: Described herein is technology for restoring access to a user account. In particular, systems and methods for account recovery using a platform attestation credential are described. In some embodiments, the platform attestation credential is generated by an authentication device in a pre boot environment. A first copy of the platform attestation credential may be bound by an account management system to a user account. Access to the user account may subsequently be restored using a second copy of the platform attestation credential.

Abstract: Described herein is technology for restoring access to a user account. In particular, systems and methods for account recovery using a platform attestation credential are described. In some embodiments, the platform attestation credential is generated by an authentication device in a pre boot environment. A first copy of the platform attestation credential may be bound by an account management system to a user account. Access to the user account may subsequently be restored using a second copy of the platform attestation credential.

Abstract: An embodiment includes an apparatus comprising: an out-of-band cryptoprocessor including secure non-volatile storage that couples to a root index, having a fixed address, and comprises first and second variables referenced by the root index; and semiconductor integrated code (SIC) including embedded processor logic to initialize a processor and embedded memory logic to initialize a memory coupled to the processor; wherein (a) the SIC is to be executed responsive to resetting the processor and prior to providing control to boot code, and (b) the SIC is to perform pre-boot operations in response to accessing at least one of the first and second variables. Other embodiments are described herein.

Abstract: Described herein is technology for restoring access to a user account. In particular, systems and methods for account recovery using a platform attestation credential are described. In some embodiments, the platform attestation credential is generated by an authentication device in a pre boot environment. A first copy of the platform attestation credential may be bound by an account management system to a user account. Access to the user account may subsequently be restored using a second copy of the platform attestation credential.

Abstract: Technologies are provided in example embodiments for determining that a module is to be loaded, the module being associated with module code, determining that the module is a frozen module, the frozen module being associated with frozen module code, determining that a module fingerprint of the module fails to correspond with a frozen module fingerprint of the frozen module, and causing loading of the frozen module code instead of the module code.

Abstract: An embodiment includes an apparatus comprising: an out-of-band cryptoprocessor including secure non-volatile storage that couples to a root index, having a fixed address, and comprises first and second variables referenced by the root index; and semiconductor integrated code (SIC) including embedded processor logic to initialize a processor and embedded memory logic to initialize a memory coupled to the processor; wherein (a) the SIC is to be executed responsive to resetting the processor and prior to providing control to boot code, and (b) the SIC is to perform pre-boot operations in response to accessing at least one of the first and second variables. Other embodiments are described herein.

Abstract: Described herein is technology for restoring access to a user account. In particular, systems and methods for account recovery using a platform attestation credential are described. In some embodiments, the platform attestation credential is generated by an authentication device in a pre boot environment. A first copy of the platform attestation credential may be bound by an account management system to a user account. Access to the user account may subsequently be restored using a second copy of the platform attestation credential.

Abstract: Technologies are provided in example embodiments for determining that a module is to be loaded, the module being associated with module code, determining that the module is a frozen module, the frozen module being associated with frozen module code, determining that a module fingerprint of the module fails to correspond with a frozen module fingerprint of the frozen module, and causing loading of the frozen module code instead of the module code.

Abstract: In some embodiments, the invention involves using a policy engine during boot, in the driver execution environment (DXE) phases to authenticate that drivers and executable images to be loaded are authenticated. Images to be authenticated include the operating system (OS) loader. The policy engine utilizes a certificate database to hold valid certificates for third party images, according to platform policy. Images that are not authenticated are not loaded at boot time. Other embodiments are described and claimed.

Abstract: In one embodiment, the present invention includes a method for setting an extensible policy mechanism to protect a root data structure including a page table, interpreting a bytecode of a pre-boot driver in a byte code interpreter, and controlling access to a memory location based on the extensible policy mechanism. Other embodiments are described and claimed.

Abstract: Methods and systems to perform an authentication operation after resuming from a sleep state are presented. In one embodiment, a method includes starting a boot process from a sleep state. The method further includes providing platform services to support an authentication operation as part of the boot process and determining whether to complete the boot process based at least on results of the authentication operation.

Abstract: In some embodiments, a processor-based system may include at least one processor, at least one memory coupled to the at least one processor, a boot block stored at a first memory location, a capsule update stored at a second memory location, a startup authenticated code module to ensure the integrity of the boot block upon a restart of the processor-based system, code which is executable by the processor-based system to cause the processor-based system to validate the boot block with the startup authenticated code module upon the restart of the processor-based system, and, if the boot block is successfully validated, to validate the capsule update for the processor-based system with the startup authenticated code module. Other embodiments are disclosed and claimed.

Abstract: In one embodiment, the present invention includes a method for determining if an isolation driver is present and a processor supports virtualization, launching the isolation driver in a first privilege level different than a system privilege level and user privilege level, creating a 1:1 virtual mapping between a virtual address and a physical address, using the isolation driver, and controlling access to a memory page using the isolation driver. Other embodiments are described and claimed.

Abstract: Methods and systems to perform an authentication operation after resuming from a sleep state are presented. In one embodiment, a method includes starting a boot process from a sleep state. The method further includes providing platform services to support an authentication operation as part of the boot process and determining whether to complete the boot process based at least on results of the authentication operation.

Abstract: In some embodiments, the invention involves using a policy engine during boot, in the driver execution environment (DXE) phases to authenticate that drivers and executable images to be loaded are authenticated. Images to be authenticated include the operating system (OS) loader. The policy engine utilizes a certificate database to hold valid certificates for third party images, according to platform policy. Images that are not authenticated are not loaded at boot time. Other embodiments are described and claimed.

Abstract: Methods and systems to display platform graphics during initialization of an computer system, including to interrupt initialization of an operating system and to update a video frame buffer with platform graphics data when the initialization of the operating system is interrupted, and to merge platform graphics data with graphics generated by operating system initialization logic. The methods and systems include virtualization methods and systems and system management mode methods and systems.

Abstract: A method and computing device for secure booting of unified extensible firmware interface executables includes generating a platform private key, signing a third party credential, storing the signed third party credential in a database located in a trusted platform module, and executing a unified extensible firmware interface executable only if an associated signed third party credential is stored in the trusted platform module.