Media file encryption key management method, system and device and storage medium

A technology for encrypting keys and media files, which is applied in the fields of electrical digital data processing, instruments, digital data protection, etc. It can solve problems such as key leakage, media file tampering, key security issues, etc., to ensure integrity and scope of application broad effect

Active Publication Date: 2019-04-16
SUZHOU KEDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this encryption is that the generation of the file encryption key depends on the quality of the random number, and the key storage is usually stored in plain text in the database, which is very prone to key leakage. Even if other keys are used to protect the file encryption key, It will lead to new key security issues. In addition, insiders may tamper or destroy media files

Method used

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  • Media file encryption key management method, system and device and storage medium
  • Media file encryption key management method, system and device and storage medium
  • Media file encryption key management method, system and device and storage medium

Examples

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Embodiment Construction

[0047] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.

[0048] Such as figure 1 As shown, the embodiment of the present invention provides a kind of media file encryption key management method, comprises the following steps:

[0049] S100: Obtain a random number, wherein the random number may be a random number obtained from a random number generator;

[0050] S200: Obtain key frame data in the media file, and calculate a summary of the key frame data;

[0051] A key frame is al...

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Abstract

The invention provides a media file encryption key management method, system and device, and a storage medium. the media file encryption key management method comprises encryption key generation, andthe encryption key generation comprises the following steps: obtaining a random number; Obtaining key frame data in the media file, and calculating an abstract of the key frame data; And carrying outoperation on the random number and the abstract of the key frame data to generate an encryption key, and taking the encryption key as an encryption key of the media file. By adopting the method, the device and the system, the cost is reduced;, the key generation does not completely depend on the random number generator; Key frame data of a media file are doped in an encryption key of the media file; Through the technical scheme, the encryption key of the media file is more difficult to crack, and meanwhile, whether the media file obtained through decryption is consistent with the media file before encryption can be verified through the key frame data, so that the integrity of the file is ensured, and internal personnel cannot tamper the media file.

Description

technical field [0001] The invention relates to the technical field of data encryption, in particular to a media file encryption key management method, system, device and storage medium. Background technique [0002] A recording and broadcasting system refers to a system that records media files from multimedia sources, stores the recorded data in a file server, and provides media file services to other visitors. The recording and broadcasting system generally includes equipment such as a database, a key management server, and a file server. In order to ensure the security of the media files in the recording and broadcasting system, it is necessary to encrypt the media files stored in the file server. [0003] The method for encrypting a media file in the prior art generally adopts a file encryption key generated by a random number, and the file encryption key is generally stored in a database in plaintext or ciphertext. The disadvantage of this encryption is that the gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62
CPCG06F21/6209
Inventor 雷心田常宇宙顾志松
Owner SUZHOU KEDA TECH
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