Amazon Technologies, Inc.

Microsoft Technology Licensing, LLC

Brian Irl Pratt

Gregory Branchek Roth

Matthew James Wren

Eric Jason Brandwine

Kevin Ross O'Neill

Nathan R Fitch

Graeme David Baer

Bradley Jeffery Behm

James E Scharf, Jr

Mark Joseph Cavage

Anders Samuelsson

Yunong Jeff Xiao

Cristian Marius Ilac

Gregory Darrell Fee

Loren Kohnfelder

Sebastian Lange

Patrick James Ward

Kathryn Marie Shih

A one-time password (OTP) based security scheme is described, where a provider pre-generates a number of verification codes (e.g., OTP codes) which will be valid for a predetermined interval. The provider then encodes the verification codes (e.g., by hashing each code with a time value), and stores the verification codes into a data structure. The data structure can be provided to a verification system that can use the set of pre-generated OTP codes to authenticate requests received from users having personal security tokens.

Token based one-time password security

A system uses information submitted in connection with a request to determine if and how to process the request. The information may be electronically signed by a requestor using a key such that the system processing the request can verify that the requestor has the key and that the information is authentic. The information may include information that identifies a holder of a key needed for processing the request, where the holder of the key can be the system or another, possibly third party, system. Requests to decrypt data may be processed to ensure that a certain amount of time passes before access to the decrypted data is provided, thereby providing an opportunity to cancel such requests and/or otherwise mitigate potential security breaches.

Federated key management

A key rotation that results in a first key version associated with a key being replaced by a second key version associated with the same key, wherein the first key version remains associated with the key for decrypting a previously generated ciphertext but not for future encryption requests. The first key version may be associated with a first cryptographic key material and the second key version may be associated with a second cryptographic key material different from the first cryptographic key material.

Key rotation techniques

A system uses information submitted in connection with a request to determine if and how to process the request. The information may be electronically signed by a requestor using a key such that the system processing the request can verify that the requestor has the key and that the information is authentic. The information may include information that identifies a holder of a key needed for processing the request, where the holder of the key can be the system or another, possibly third party, system.

Virtual firewalls may be established that enforce sets of policies with respect to computing resources maintained by multi-tenant distributed services. Particular subsets of computing resources may be associated with particular tenants of a multi-tenant distributed service. A tenant may establish a firewalling policy set enforced by a virtual firewall for an associated subset of computing resources without affecting other tenants of the multi-tenant distributed service. Virtual firewalls enforcing multiple firewalling policy sets may be maintained by a common firewalling component of the multi-tenant distributed service. Firewalling policy sets may be distributed at multiple locations throughout the multi-tenant distributed service. For a request targeting a particular computing resource, the common firewalling component may identify the associated virtual firewall, and submit the request to the virtual firewall for evaluation in accordance with the corresponding firewalling policy set.

Virtual firewalls for multi-tenant distributed services

A first service submits a request to a second service on behalf of a customer of a service provider. The request may have been triggered by a request of the customer to the first service. To process the request, the second service evaluates one or more policies to determine whether fulfillment of the request is allowed by policy associated with the customer. The one or more policies may state one or more conditions on one or more services that played a role in submission of the request. If determined that the policy allows fulfillment of the request, the second service fulfills the request.

Access control using impersonization

Requests submitted to a computer system are evaluated for compliance with policy to ensure data security. Plaintext and associated data are used as inputs into a cipher to produce ciphertext. Whether a result of decrypting the ciphertext can be provided in response to a request is determined based at least in part on evaluation of a policy that itself is based at least in part on the associated data. Other policies include automatic rotation of keys to prevent keys from being used in enough operations to enable cryptographic attacks intended to determine the keys.

Automatic key rotation

Systems and methods for controlling access to one or more computing resources relate to generating session credentials that can be used to access the one or more computing resources. Access to the computing resources may be governed by a set of policies and requests for access made using the session credentials may be fulfilled depending on whether they are allowed by the set of policies. The session credentials themselves may include metadata that may be used in determining whether to fulfill requests to access the one or more computing resources. The metadata may include permissions for a user of the session credential, claims related to one or more users, and other information.

Techniques for delegation of access privileges

A security module securely manages keys. The security module is usable to implement a cryptography service that includes a request processing component. The request processing component responds to requests by causing the security module to perform cryptographic operations that the request processing component cannot perform due to a lack of access to appropriate keys. The security module may be a member of a group of security modules that securely manage keys. Techniques for passing secret information from one security module to the other prevent unauthorized access to secret information.

Data security with a security module

Use of metadata for computing resource access

Methods and systems for implementing custom access controls are disclosed. A first task is added to a first workflow. A first role is generated for the first workflow. The first role comprises a first set of one or more permissions for using one or more computing resources. The one or more permissions in the first role are selected based on the first task. The first task is performed using the one or more computing resources in accordance with the first role.

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Brian Irl Pratt