摘要:
A method that includes initiating a network access request from an access requester on a platform that couples to a network, the network access request made to a policy decision point for the network. The method also includes establishing a secure communication channel over a communication link between the policy decision point and a policy enforcement point on the platform. Another secure communication channel is established over another communication link. The other communication link is between at least the policy enforcement point and a manageability engine resident on the platform. The manageability engine forwards posture information associated with the access requester via the other secure communication channel. The posture information is then forwarded to the policy decision point via the secure communication channel between the policy enforcement point and the policy decision point. The policy decision point indicates what access the access requester can obtain to the network based on a comparison of the posture information to one or more network administrative policies.
摘要:
Architectures and techniques that allow a firmware agent to operate as a tamper-resistant agent on a host platform that may be used as a trusted policy enforcement point (PEP) on the host platform to enforce policies even when the host operating system is compromised. The PEP may be used to open access control and/or remediation channels on the host platform. The firmware agent may also act as a local policy decision point (PDP) on the host platform in accordance with an authorized enterprise PDP entity by providing policies if a host trust agent is non-responsive and may function as a passive agent when the host trust agent is functional.
摘要:
Provided are a techniques for storing information in a packet. A data integrity operation is performed over one portion of the packet to calculate an integrity check value using a secret key. The data transformation operation is performed over another selectable portion of the packet to store the integrity check value in the other portion of the packet, without increasing a size of the packet.Other embodiments are described and claimed.
摘要:
Methods and apparatus to off-load cryptographic processes are disclosed. An example method includes receiving a request to perform a cryptographic process at a first component of a processor system, transmitting the request over a data bus to a second component of a processor system, receiving the request at the second component, and performing the cryptographic process on the second component. For example, the first component may be a processor and the second component may be a management agent. Other embodiments are described and claimed.
摘要:
Provided are a techniques for storing information in a packet. A data integrity operation is performed over one portion of the packet to calculate an integrity check value using a secret key. The data transformation operation is performed over another selectable portion of the packet to store the integrity check value in the other portion of the packet, without increasing a size of the packet. Other embodiments are described and claimed.
摘要:
A technique allows for protecting a PCI device controller from a PCI BDF masquerade attack from Ring-0 and Ring-3 malware. The technique may use Virtualization technologies to create guest virtual machines that can use a hypervisor to allocate ACPI information from ACPI tables to a secure VM and using extended page tables (EPT) and VT-d policies to protect the MMIO memory range during illegal runtime events.
摘要:
Architectures and techniques that allow a firmware agent to operate as a tamper-resistant agent on a host platform that may be used as a trusted policy enforcement point (PEP) on the host platform to enforce policies even when the host operating system is compromised. The PEP may be used to open access control and/or remediation channels on the host platform. The firmware agent may also act as a local policy decision point (PDP) on the host platform in accordance with an authorized enterprise PDP entity by providing policies if a host trust agent is non-responsive and may function as a passive agent when the host trust agent is functional.
摘要:
Architectures and techniques that allow a firmware agent to operate as a tamper-resistant agent on a host platform that may be used as a trusted policy enforcement point (PEP) on the host platform to enforce policies even when the host operating system is compromised. The PEP may be used to open access control and/or remediation channels on the host platform. The firmware agent may also act as a local policy decision point (PDP) on the host platform in accordance with an authorized enterprise PDP entity by providing policies if a host trust agent is non-responsive and may function as a passive agent when the host trust agent is functional.
摘要:
A method that includes initiating a network access request from an access requester on a platform that couples to a network, the network access request made to a policy decision point for the network. The method also includes establishing a secure communication channel over a communication link between the policy decision point and a policy enforcement point on the platform. Another secure communication channel is established over another communication link. The other communication link is between at least the policy enforcement point and a manageability engine resident on the platform. The manageability engine forwards posture information associated with the access requester via the other secure communication channel. The posture information is then forwarded to the policy decision point via the secure communication channel between the policy enforcement point and the policy decision point. The policy decision point indicates what access the access requester can obtain to the network based on a comparison of the posture information to one or more network administrative policies.
摘要:
Secure re-authentication of host devices roaming between different connection and/or access points within a network controlled by the same administrative domain is described. Platform overhead associated with exchanging information for authentication and/or validation on each new connection during mobility is reduced by enabling prior authenticated network access to influence subsequent network access.