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US 2020/0050738 A1Published application
Security of Surveillance Media
AssigneeNagravision Sarl
InventorsMichel ANGEL, Hervé RETAUREAU, Antony CELLETTI
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AssigneeNagravision Sarl
InventorsMichel ANGEL, Hervé RETAUREAU, Antony CELLETTI
Estimating the term…
A media device receives a domain key from a service provider. The media device further encrypts media with a media key and encrypts the media key with the domain key to form an encrypted media token: the protected media key is encapsulated in an encrypted media token. The service provider may then receive the encrypted media token and one or more receiving entity identifiers relating to a receiving entity and ascertain whether the receiving entity is entitled to access media from the media device. If the receiving entity is entitled to access media from the media device, the service provider decrypts the cryptographic media token using the domain key to obtain the media key and providing the media key to the receiving entity. As such, an authenticated receiving entity may obtain the media key necessary to decrypt the media. Moreover, there is no requirement for any intermediate entity to have similar access and thus the encryption provided by the media key is in place throughout the transport of the media from media device to receiving entity.
A method for securing media content in a network comprising
A method according to any preceding claim, wherein the encrypted media token comprises metadata associated with the domain key.
A method according to any preceding claim, wherein the media device transmits the encrypted media token to the receiving entity and wherein the service provider receives the encrypted media token from the receiving entity.
A method according to any preceding claim, wherein the service provider receives the encrypted media token in a form encrypted using one or more receiving device identifiers.
A method according to any preceding claim, wherein the service provider provides the media key to the receiving entity in a form encrypted using one or more receiving device identifiers.
A method according to any preceding claim, wherein the media key is changed periodically.
A method according to any preceding claim, wherein the domain key is changed periodically.
A method according to any preceding claim, wherein the media comprises audio and/or visual content.
A method according to any preceding claim, wherein the media device comprises a camera.
A computer readable medium comprising computer executable instructions for carrying out the method of any one of the preceding claims.
A system for securing media content in a network comprising a media device and a service provider, wherein:
Dependencies are inferred from the claim text.