Secure multi-party device pairing using sensor data
AssigneeAT&T Intellectual Property I, L.P.
InventorsMatti A. Hiltunen, Emiliano Miluzzo, Abhinav Srivastava
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Abstract
Content is securely shared between communication devices in an ad-hoc manner by employing common sensing context to establish pairing between the communication devices. In one aspect, the communication devices are within a specified distance from each other and sense common signals from their environment over a specified time period. The common signals are analyzed to determine an initialization or session key, which is utilized to secure content transfer between the communication devices. Additionally or alternatively, the key is utilized to provide access to virtual (e.g., digital content) and/or physical (e.g., buildings) resources.
Claims20
A first device, comprising:
- a processor;
- and
- a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
- determining first cryptographic key data based on first context data associated with an environment of the first device;
- encrypting test data using the first cryptographic key data, resulting in encrypted test data;
- sending the encrypted test data to a second device;
- and
- receiving a confirmation from the second device that the first cryptographic key data is valid based on the encrypted test data being able to be decrypted by the second device using second cryptographic key data determined by the second device based on second context data associated with the environment.
A method, comprising:
- determining, by a first device comprising a processor, first cryptographic key data based on first context data associated with an environment of the first device;
- encrypting, by the first device, test data using the first cryptographic key data, resulting in encrypted test data;
- sending, by the first device, the encrypted test data to a second device;
- and
- receiving, by the first device, a confirmation from the second device that the first cryptographic key data is valid based on the encrypted test data being able to be decrypted by the second device using second cryptographic key data determined by the second device based on second context data associated with the environment.
A machine-readable storage medium, comprising executable instructions that, when executed by a processor of a first device, facilitate performance of operations, comprising:
- determining first key data based on context signals captured from an environment of the first device;
- encrypting test data using the first key data, resulting in encrypted test data;
- sending the encrypted test data to a second device;
- and
- receiving a confirmation from the second device that the first key data is valid based on the encrypted test data being determined to have been able to be decrypted by the second device using second key data determinable by the second device based on second context signal captured by the second device from the environment.
Dependencies are inferred from the claim text.