Abstract:
Techniques are disclosed relating to biometric authentication. In one embodiment, a computing device includes a controller circuit, a camera, and a secure circuit. The controller circuit is coupled to a button and detects when the button has been pressed. The camera captures a set of biometric data of a user. The secure circuit performs an authentication of the user by confirming that a notification identifying the button being pressed was received from the controller circuit and by comparing the set of biometric data with another set of biometric data for an authorized user of the computing device. In some embodiments, the controller circuit is configured to maintain a timestamp indicative of when the button has been pressed and usable by the secure circuit to confirm that the button is pressed within a threshold time period of the authentication being performed.
Abstract:
Systems, methods, and computer-readable media for validating online access to secure device functionality are provided that may use shared secrets between different subsystems and limited use validation data.
Abstract:
Disclosed herein are systems, methods, and non-transitory computer-readable media for enforcing application usage policies. As part of an application purchase transaction, the application distributor creates a unique proof of purchase receipt. This receipt can be bundled with the application and delivered to the purchaser. Each machine can maintain an authorization file that lists the users authorized to use applications on that machine. A system configured to practice the method verifies that a user is authorized to use an application on a machine based on an application proof of purchase receipt and the authorization file. If the application proof of purchase receipt and the authorization file are both valid, the system checks if the user account identifier in the receipt is contained in the authorization file. If so, the user can be considered authorized to use the application on the machine.
Abstract:
Techniques are disclosed relating to securely receiving and storing credentials. In some embodiments, a computing device includes an application executable to supply a credential to an external system. A secure circuit of the computing device is configured to send, to a credential storage, a request for the credential, the request including a first certificate identifying a first public key and a stipulation to perform a user authentication before permitting use of a first private key corresponding to the first public key. The secure circuit receives, from the credential storage, the credential encrypted using the first public key and, based on the stipulation, performs the user authentication prior to decrypting the credential and supplying it to the application. In some embodiments, the secure circuit receives the first certificate by providing information about hardware included in the computing device to a hardware verification service.
Abstract:
A device implementing a system for using a verified claim of identity includes at least one processor configured to receive a verified claim including information to identify a user of a device, the verified claim being signed by a server based on verification of the information by an identity verification provider separate from the server, the verified claim being specific to the device. The at least one processor is further configured to send, to a service provider, a request for a service provided by the service provider, and receive, from the service provider and in response to the sending, a request for the verified claim. The at least one processor is further configured to send, in response to the receiving, the verified claim to the service provider.
Abstract:
A method and associated apparatus for use in a data distribution process to allow an untrusted intermediary to re-encrypt data for transmission from an originator to a message receiver without revealing the data (message) or the cipher to the intermediary. This method uses a composition of two ciphers for re-encrypting the message at the intermediary, without revealing the plain text message or either cipher to the intermediary.
Abstract:
For digital rights management (DRM) of e.g. digitally delivered music or video, a technique to make the decryption keys more secure. The technique fragments a message (song or video or other) into a number of portions, and uses a different decryption key for each portion. Each of the various keys is a function of the preceding key, in one version. In another version, each key is a function of a seed value and of the particular portion of the material with which the key is associated.
Abstract:
There is provided a method of a user receiving permission to access media content comprising receiving a unitary media storage structure with a plurality of protected media portions, receiving from a license authority a key for each protected media portion that the user has permission to access, and using the respective key to access each protected media portion that the user has permission to access.
Abstract:
Systems, methods, and computer-readable media for validating online access to secure device functionality are provided that may use shared secrets between different subsystems and limited use validation data.