Method for securing a multimedia content record in a storage medium
US10970366B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2016 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Jun 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for securing a recording of multimedia content in a storage medium of a first electronic device, the method including an encryption operation which consists of: for each item of multimedia content to be encrypted, generating a random key within the first electronic device; encrypting the multimedia content by the random key in order to obtain encrypted multimedia content; encrypting, by a user key, the random key so as to obtain a first encrypted random key; encrypting the first encrypted random key by a root key specific to the first electronic device in order to obtain a second encrypted random key; and storing the second encrypted random key and the encrypted multimedia content in the storage medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.