摘要:
A system, method, and program for managing a user key used to sign a message for a data processing system having an encryption chip are disclosed. A user is assigned a user key. In order to encrypt and send messages to a recipient(s), the messages are encrypted with the user key. The user key, in turn, is encrypted with an associated key. The associated key is further encrypted using an encryption chip key stored on the encryption chip. The encrypted messages are communicated to a recipient to validate an association of the user with the encrypted messages. The associated key is decrypted with the encryption chip key. The user key is decrypted with the associated key, and the messages are decrypted with the user key. Thereafter, validation of the association of messages with the user is removed by revoking the associated key. In a preferred embodiment, encryption resources are centralized in a server system having the encryption chip. The server system is coupled to and provides encryption services to a plurality of client systems. Messages to be encrypted are sent from a user's client system to the server system, which encrypts the messages using the encryption chip. The encrypted messages are sent from the server system to the client system, which then transmits the encrypted messages to their intended recipient(s). All data relating to the encrypted messages are erased from the server system after the encrypted messages are sent from the server system to the client system.
摘要:
A method, apparatus, and system are disclosed of forward caching for a managed client. A storage module stores a software image on a storage device of a backend server. The backend server provides virtual disk storage on the storage device through a first intermediate network point for a plurality of diskless data processing devices. Each diskless data processing device communicates directly with the first intermediate network point. The storage module caches an image instance of the software image at the first intermediate network point. A tracking module detects an update to the software image on the storage device. The storage module copies the updated software image to the first intermediate network point as an updated image instance.
摘要:
A system, method, and program product is provided that executes a start sequence of an information handling system that includes a hardware based TPM. Multiple PCRs are stored in the TPM and are initialized to a predetermined state when the start sequence commences. During execution of the start sequence, software modules, including a hypervisor, are loaded the system's memory. PCR values resulting from the loading of the software modules are calculated. The resulting PCR values are compared with expected PCR values. If the PCR values match the expected PCR values, then a virtual environment is created under the hypervisor. The virtual environment includes a VM and a virtual trust platform module (vTPM) that is used by the virtual machine to satisfy the virtual machines TPM requests.
摘要:
To unlock a HDD when a computer is in the suspend state, at both BIOS and the HDD a secret is combined with a password to render a new one-time password. BIOS sends its new one-time password to the HDD which unlocks itself only if a match is found. The new one-time password is then saved as an “old” password for subsequent combination with the secret when coming out of subsequent suspend states. In this way, if a computer is stolen the thief cannot sniff the bus between BIOS and the HDD to obtain a password that is of any use once the computer ever re-enters the suspend state.
摘要:
A method and system for ensuring security-compliant creation and certificate generation for endorsement keys of manufactured TPMs. The endorsement keys are generated by the TPM manufacturer and stored within the TPM. The TPM manufacturer also creates a signing key pair and associated signing key certificate. The signing key pair is also stored within the TPM, while the certificate is provided to the OEM's credential server. During the endorsement key (EK) credential process, the TPM generates a signed endorsement key, which comprises the public endorsement key signed with the public signing key. The credential server matches the public signing key of the endorsement key with a public signing key within the received certificate. The EK certificate is generated and inserted into the TPM only when a match is confirmed.
摘要:
An apparatus, system, and method are disclosed for computer system power management. A control module 602 is activated on a computer 200 in response to an event and enters 818 a standby state if the computer 200 is not already 814 in the standby state. A policy module 604 detects 904 a power source of a predetermined type connected to the computer 200 and dictates 908 one or more processors 302 of higher power consumption for a more abundant type of power source such as an AC adapter 314, or one or more processors 304 of lower power consumption for a less abundant type of power source such as a battery 318. A configuration module 606, activated by the control module 602, switches 1004 the computer 200 to one or more processors 302 and 304 of a predetermined power consumption as dictated and exits 1016 the standby state.
摘要:
An apparatus, system, and method are disclosed for quiescing a boot environment. A reservation module reserves a portion of a first storage device. A store module stores an update boot image to the reserved portion. A detection module detects the update boot image stored on the first storage device when the computer boots and executes the update boot image in place of a standard boot image in response to detecting the update boot image. The update boot image places a computer in a known quiescent state.
摘要:
The Trusted Computing Platform Alliance (TCPA) Specification is implemented to allow a credit card company to remotely install a credit card private key into a TCPA module to create a Trusted Platform Module (TPM). More specifically, when a credit worthy user applies for a credit card, the user will send the credit card company a public portion of a “non-migratable storage key,” which is accredited a TPM endorsed by a Certification Authority. The credit card company will create its own public/private key pair according to the TCPA Specification, to create a TCPA header, and wrap the full structure by encrypting it with the public portion of the TCPA non-migratable storage key. The credit card company then sends by email the encrypted bundle with a certificate for it, and sends a corresponding pass phrase by regular mail.
摘要:
An approach is provided that identifies when a wireless keyboard unit is connected to an information handling system that includes a display screen that is partially blocked when the keyboard is attached. A determination is made as to the size of the visible portion of the display screen. Items are displayed on the visible portion of the display screen. The approach refrains from displaying items on the blocked portion of the display screen. The user is able to move the wireless keyboard, the movement of the keyboard resulting in a changed size of the visible portion of the display screen. After the keyboard is repositioned, the visual items are re-displayed on the visible portion of the display screen so that the items fit in the changed size of the visible portion of the display screen.
摘要:
An apparatus, system, and method are disclosed for secure hard disk signed audit. The apparatus is provided with a plurality of modules configured to functionally execute the necessary steps of monitoring interactions with an audited system, detecting an interrupt event corresponding to an auditable interaction, and logging an audit record for the auditable interaction in response to the interrupt event, wherein the audit record is logged in an access-restricted portion of a portion-securable hard disk. These modules in the described embodiments include a gate module, a detection module, and a logging module.