Abstract:
A distributed computing environment utilizes a cryptography service. The cryptography service manages keys securely on behalf of one or more entities. The cryptography service is configured to receive and respond to requests to perform cryptographic operations, such as encryption and decryption. The requests may originate from entities using the distributed computing environment and/or subsystems of the distributed computing environment.
Abstract:
Functionality is disclosed herein for monitoring an execution environment to determine if the execution environment is in an approved configuration. Memory used by the execution environment may be scanned from outside of the execution environment to determine whether the execution environment is in an unapproved configuration. The scanning may include examining the memory for abnormalities or other irregular or unapproved data. When the execution environment is in the unapproved configuration, actions may be performed that change how the execution environment accesses resources or performing other types of functionality.
Abstract:
A computer system encodes a plurality of components of a data set into a probabilistic data structure and digitally signs the probabilistic data structure. The computer system provides the digital signature for the probabilistic data structure and the probabilistic data structure to various entities. An entity can verify an individual component of the data set within the probabilistic data structure by verifying the individual component against the probabilistic data structure and the digital signature of the probabilistic data structure.
Abstract:
A request to cancel a change to a policy is received. Based at least in part on delay information for the change, determine that the change is currently delayed, where the delay information is associated with a condition precedent for the change to become effective under a policy change policy. A determination is made regarding whether cancellation is allowed by a set of conditions for the changes, and the proposed policy change is caused to be cancelled prior to a time indicated by the delay information.
Abstract:
A graph of a plurality of resources in a computing environment is generated, with the graph associating a first resource of the plurality with a second resource of the plurality. Based at least in part on measurements obtained at a point in a test computing environment that corresponds to a point in the computing environment, an expected value or expected range of values is determined. An assessment of a security state of the computing environment is generated based at least in part on a comparison between a measurement obtained at the point in the computing environment and the expected value or expected range of values, and responsive to a determination that the assessment indicates a rule violation in the computing environment, a security action is performed.
Abstract:
Techniques for managing secure execution environments provided as a service to computing resource service provider customers are described herein. A request to launch a secure execution environment is received from a customer and fulfilled by launching a secure execution environment on a selected computer system. The secure execution environment is then validated and upon a successful validation, one or more applications are provided to the secure execution environment to be executed within the secure execution environment. As additional requests relating to managing the secure execution environment are received, operations are performed based on the requests.
Abstract:
A service provider manages access control to multiple services through an authentication system. One or more services are able to fulfill requests at least in part by submitting requests to other services of the service provider. Such a service is able to obtain, from the authentication system, information that can be passed on to one or more other services to enable the one or more other services to determine request validity without having to contact the authentication system. The information may include, for example, one or more responses that the one or more other services would have received had the one or more services contacted the authentication system themselves.
Abstract:
A system performs cryptographic operations utilizing information usable to verify validity of plaintext. To prevent providing information about a plaintext by providing the information usable to verify the validity of the plaintext, the system provides the information usable to verify validity of the plaintext to an entity on a condition that the entity is authorized to access the plaintext. The information usable to verify validity of the plaintext may be persisted in ciphertext along with the plaintext to enable the plaintext to be verified when decrypted.
Abstract:
A distributed passcode verification system includes devices that each have a secret and that are each able to perform a limited number of verifications using their secrets. Passcode verifiers receive passcode information from a passcode information manager. The passcode information provides information usable, with a secret, to verify passcodes provided to a verifier.
Abstract:
Permissions can be delegated to enable access to resources associated with one or more different accounts, which might be associated with one or more different entities. Delegation profiles are established that are associated with at least one secured account of at least one customer. Each delegation profile includes information such as a name, a validation policy that specifies principals which may be external to the account and which are permitted to assume the delegation profile, and an authorization policy that indicates the permitted actions within the account for those principals which are acting within the delegation profile. Once a delegation profile is created, the profile can be available for external principals or services that provide a user credential delegated access under the account, where that credential is provided by a trusted identity service. Access can be provided across accounts using the user credential.