摘要:
A method in one example embodiment includes receiving a set of data in real time from a plurality of machine devices associated with at least one vehicle, providing a set of reference data corresponding to a machine device of the plurality of machine devices, comparing the set of data with the set of reference data, and detecting a deviation within the set of data from the set of reference data. The method further includes initiating an operation associated with the deviation. The set of reference data could be a trend of previous data received from the machine device or a common trend based on a previous set of data of the machine device. More specific embodiments include receiving a plurality of data containing the set of data from the plurality of machine devices and identifying a state of the machine device using the set of data.
摘要:
Techniques for memory compartmentalization for trusted execution of a virtual machine (VM) on a multi-core processing architecture are described. Memory compartmentalization may be achieved by encrypting layer 3 (L3) cache lines using a key under the control of a given VM within the trust boundaries of the processing core on which that VMs is executed. Further, embodiments described herein provide an efficient method for storing and processing encryption related metadata associated with each encrypt/decrypt operation performed for the L3 cache lines.
摘要:
The present disclosure presents a method and apparatus configured to provide for the trusted execution of virtual machines (VMs) on a virtualization server, e.g., for executing VMs on a virtualization server provided within Infrastructure as a Service (IaaS) cloud environment. A physical multi-core CPU may be configured with a hardware trust anchor. The trust anchor itself may be configured to manage session keys used to encrypt/decrypt instructions and data when a VM (or hypervisor) is executed on one of the CPU cores. When a context switch occurs due to an exception, the trust anchor swaps the session key used to encrypt/decrypt the contents of memory and cache allocated to a VM (or hypervisor).
摘要:
Techniques are described for securely booting and executing a virtual machine (VM) image in an untrusted cloud infrastructure. A multi-core processor may be configured with additional hardware components—referred to as a trust anchor. The trust anchor may be provisioned with a private/public key pair, which allows the multi-core CPU to authenticate itself as being able to securely boot and execute a virtual machine (VM) image in an untrusted cloud infrastructure.
摘要:
The present disclosure presents a method and apparatus configured to provide for the trusted execution of virtual machines (VMs) on a virtualization server, e.g., for executing VMs on a virtualization server provided within Infrastructure as a Service (IaaS) cloud environment. A physical multi-core CPU may be configured with a hardware trust anchor. The trust anchor itself may be configured to manage session keys used to encrypt/decrypt instructions and data when a VM (or hypervisor) is executed on one of the CPU cores. When a context switch occurs due to an exception, the trust anchor swaps the session key used to encrypt/decrypt the contents of memory and cache allocated to a VM (or hypervisor).
摘要:
A method in one embodiment includes detecting an event for a transaction on an on-board unit (OBU) of a vehicle, where the event has a trigger associated with an agent. The method also includes determining whether the transaction is authorized, identifying network credentials in an identity profile that corresponds to the agent, providing network credentials to a transaction application corresponding to the transaction, and accessing a remote network using the network credentials. Certain embodiments include selecting the network credentials from a plurality of available network credentials corresponding to the agent. In more specific embodiments, the network credentials include one or more virtual subscriber identity modules (VSIMs) of a plurality of VSIMs provisioned on the OBU. In specific embodiments, the network credentials are mapped to a combination of two or more of the agent, the transaction application, and a predefined current location of the vehicle.
摘要:
Methods and apparatus are provided for improving message-based security in a Fibre Channel network. More specifically, the present invention relates to methods and apparatus for providing confidentiality for Fibre Channel control messages encapsulated within Common Transport Information Units. Control messages transported with the Fibre Channel Common Transport protocol, and passed between Fibre Channel network entities, can be encrypted providing confidentiality combined with data origin authentication, integrity and anti-replay protection provided by existing Fibre Channel security mechanisms.
摘要:
A computer system for authenticating, encrypting, and transmitting a secret communication, where the encryption key is transmitted along with the encrypted message, is disclosed. In an embodiment, a first transmitting processor encrypts a plaintext message to a ciphertext message using a data key, encrypts the data key using a key encrypting key, and sends a communication comprising the encrypted data key and the ciphertext message. A second receiving processor receives the communication and then decrypts the encrypted data key using the key encrypting key and decrypts the ciphertext message using the data key to recover the plaintext message.
摘要:
Methods and apparatus for performing encryption for data at rest at a port of a network device such as a switch are disclosed. Specifically, when data is received from a host during a write to a storage medium such as a disk, the data is encrypted by the port prior to transmitting the encrypted data to the storage medium. Similarly, when a host attempts to read data from the storage medium, the port of the network device receives the encrypted data from the storage medium, decrypts the data, and transmits the decrypted data to the host. In this manner, encryption and decryption of data at rest are supported by the port of the network device.
摘要:
Methods and apparatus are provided for improving both node-based and message-based security in a fibre channel network. Entity to entity authentication and key exchange services can be included in existing initialization messages used for introducing fibre channel network entities into a fibre channel fabric, or with specific messages exchanged over an already initialized communication channel. Both per-message authentication and encryption mechanisms can be activated using the authentication and key exchange services. Messages passed between fibre channel network entities can be encrypted and authenticated using information provided during the authentication sequence. Security services such as per-message authentication, confidentiality, integrity protection, and anti-replay protection can be implemented.