Red Hat, Inc.

Citrix Systems, Inc.

Cryptomathic Ltd.

Michael Bursell

Huamin Chen

Michael Tsirkin

Jonathan Roshan Tuliani

Ricardo Noriega De Soto

A system includes a memory, a processor in communication with the memory, a hypervisor, and a trusted execution environment (TEE). The TEE is provisioned with a workload and includes an introspection module. The introspection module is configured to execute an introspection command according to an introspection policy. The introspection command is configured to validate at least one memory access associated with the workload. The introspection module is also configured to determine a status of a result of the introspection commands, wherein the status is one of a failure status and a success status.

Privacy preserving introspection for trusted execution environments

Methods and systems for storing and injecting bytecode are provided. In one embodiment, a method is provided that includes receiving, at a first time, a first function for execution within a serverless computing environment; generating, by an interpreter, a first bytecode based on the first function; storing the first bytecode in association with an identifier of the first function; receiving, at a second time after the first time, a second function for execution within the serverless computing environment; identifying the second function as corresponding to the first function; injecting the first bytecode into a container for execution of the second function; receiving performance metrics regarding execution of the second function; and determining, based on the performance metrics, whether to allow or prevent future injection of the first bytecode.

Adaptive and secure bytecode injection based on comparison with previously stored bytecode

Virtual machines, virtualization servers, and other physical resources in a cloud computing environment may be dynamically configured based on the resource usage data for the virtual machines and resource capacity data for the physical resources in the cloud system. Based on an analysis of the virtual machine resource usage data and the resource capacity data of the virtualization servers and other physical resources in the cloud computing environment, each virtual machine may be matched to one of a plurality of virtualization servers, and the resources of the virtualization servers and other physical resources in the cloud may be reallocated and reconfigured to provide additional usage capacity to the virtual machines.

Dynamic configuration in cloud computing environments

Sensitive information can be managed using a trusted platform module. For example, a system can encrypt target information using a cryptographic key to generate encrypted data. The system can also receive an encrypted key from a trusted platform module, where the encrypted key is a version of the cryptographic key that is encrypted using a public key stored in the trusted platform module. The system can then transmit the encrypted data and the encrypted key to a remote computing system, for example to store the encrypted data and the encrypted key on the remote computing system. Using these techniques, the target information may be secured and stored in remote locations.

Managing sensitive information using a trusted platform module

Aspects and features of the present disclosure can provide a trusted, privacy-preserved deduplication process by executing deduplication functions in a trusted execution environment (TEE). In some examples, encrypted, incoming user data blocks are decrypted in the TEE to produce unencrypted user data blocks. An incoming digital fingerprint or each unencrypted user data block is produced. A processing device can compare the incoming digital fingerprint to existing digital fingerprints stored in the TEE to determine a presence of the incoming digital fingerprint and hence the presence of a copy of the data block in the storage platform, and writes the encrypted. Incoming data blocks are written to storage only when necessary. The technique allows public mass storage systems to meet cybersecurity objectives while achieving the storage space efficiency that deduplication provides.

Deduplication in a trusted execution environment

Methods and systems for storing and injecting bytecode are provided. In one embodiment, a method is provided that includes receiving a first function for execution at a first time and generating a first bytecode based on the first function for use in executing the first function. The first bytecode may then be stored with an identifier of the first function. At a second time after the first time, a second function may be received for execution. The second function may be identified as corresponding to the first function and the first bytecode may be received. The first bytecode may then be injected into a container for execution of the second function.

Adaptive and secure bitecode injection based on comparison with previously stored bytecode

According to one example, a method includes, with a serverless function infrastructure, associated a routing secret with a function sequence. The method further includes, with a sequence controller of the serverless function infrastructure, appending the routing secret to a header of a request to invoke a first function of the function sequence. The method further includes, with the serverless function infrastructure invoking the first function of the function sequence, in response to authenticating the routing secret in the header of the request. The method further includes, after the first function has been invoked and before the first function completes execution, with a serving controller of the serverless function infrastructure, preloading subsequent functions of the function sequence.

Secure preloading of serverless function sequences

Storage associated with a virtual machine or other type of device may be migrated between locations (e.g., physical devices, network locations, etc.). To maintain the security of the storage, a system may manage the encryption of the storage area such that a storage area is encrypted with a first encryption key that may be maintained through the migration. A header of the storage area, on the other hand, may be encrypted using a second encryption key and the first encryption key may be stored therein. Upon transfer, the header may be re-encrypted to affect the transfer of security.

Storage encryption

Methods and systems for permitting a controller within a virtualization environment to control access to devices virtualized within hardware are described herein. For example, a NIC may be able to request rules that define how network traffic is managed at the NIC's virtual switch. In some arrangements, the NIC may transmit a query for the matching rule to a proxy, which may determine whether it has a rule matching the request. If the proxy does not have a matching rule, the proxy may query a controller for the matching rule, which may transmit the rule to the proxy. The proxy may update its store of rules and transmit the matching rule to the NIC. Upon receipt of the matching rule, the NIC may update the rules stored in its virtual switch and may process the packet in accordance with the matching rule.

Controlling a network interface using virtual switch proxying

This invention generally relates methods, computer program code, data processing apparatus, and signals for certifying data, in particular by means of an electronic signature. Embodiments of the invention can be implemented on a user terminal without the need for dedicated hardware or software and may be termed 'zero-footprint' data certification methods. A method of providing an electronic signature to-a-server; the method including receiving data for said server at a proxy system for said server; reading said received data to identify a signature request; obtaining a signature for a portion of said received data associated with said request responsive to said request, and providing said signature from said proxy system to said server. The use of a signature-enabled reverse proxy enables the use of a zero footprint user terminal, that is without the need to add additional functionality to the terminal for the purposes of signature creation in the context of a distributed application architecture.

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Halstead, United Kingdom

Michael Bursell