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Secure memory allocation method and device

A memory allocation and security technology, applied in selective content distribution, image communication, electrical components, etc., can solve problems such as occupying hardware resources

Active Publication Date: 2022-04-26
CHINA TELECOM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The memory space used by the TEE environment for decryption and playback is at least on the order of hundreds of megabytes, occupying relatively large-scale hardware resources

Method used

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  • Secure memory allocation method and device
  • Secure memory allocation method and device

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Embodiment Construction

[0031] The technical solution of the present disclosure will be described in further detail below with reference to the drawings and embodiments.

[0032] The flowchart of an embodiment of the secure memory allocation method of the present disclosure is as follows figure 1 shown.

[0033] In step 101, a set of historical data corresponding to the current booting time is determined according to the booting time in the historical data, wherein the historical data includes the booting time and the starting time of DRM (Digital Rights Management, Digital Rights Management) film sources. In one embodiment, the power-on time corresponding to the current power-on time may be a time different from the current time by an integer number of predetermined time periods, and the predetermined time period may be one day or one week. In one embodiment, the power-on time can be HH (hour): MM (minute): SS (second) information, and the historical data corresponding to the HH: MM: SS information...

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Abstract

The disclosure proposes a secure memory allocation method and device, which relate to the technical field of smart home. A secure memory allocation method of the present disclosure includes: determining a set of historical data corresponding to the current boot time according to the boot time in the historical data, wherein the historical data includes the boot time and the time when the digital rights management DRM film source starts playing; according to The information on the time when the DRM source starts playing in the historical data set determines the safe memory allocation time; the safe memory is allocated at the safe memory allocation time. Through this method, the historical data can be screened according to the boot time, and the appropriate safe memory allocation time can be estimated based on the filtered historical data, so that there is no need to continuously allocate safe memory, and the allocation time of safe memory can be in line with the user's usage habits, without the need for the user to Select to wait for allocation after playing, which improves the efficiency of safe memory allocation.

Description

technical field [0001] The present disclosure relates to the field of smart home technology, in particular to a method and device for secure memory allocation. Background technique [0002] At present, the digital rights management requirements put forward by major film producers to operators for high-quality film sources all put forward TEE (Trusted Execution Environment, Trusted Execution Environment) requirements. In order to ensure the smooth playback of 4K UHD (Ultra High Definition, Ultra High Definition) sources, TEE environments are configured in the solutions of different chip manufacturers. The memory space used by the TEE environment for decryption and playback is at least on the order of hundreds of megabytes, occupying relatively large-scale hardware resources. In the related art, there are two main security memory allocation mechanisms in the TEE environment of the interactive Internet TV IPTV / OTT (Over The Top, Internet TV) set-top box: [0003] Mechanism 1:...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/57H04N21/443
CPCG06F21/57H04N21/443
Inventor 李兴达杨琛
Owner CHINA TELECOM CORP LTD