A network terminal playback control method based on aes and material verification

A network terminal and playback control technology, applied in encryption devices with shift registers/memory, electrical components, transmission systems, etc., to achieve the effect of improving performance, improving market competitiveness, and ensuring integrity and uniqueness

CN103078861BActive Publication Date: 2015-11-25恒鸿达科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-11-25

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Abstract

The invention provides a network terminal playing control method based on an AES (Advanced Encryption Standard) and material verification. Specific to the aim of ensuring the integrity and the uniqueness of playlists and material files, a network terminal is required to decrypt and verify whether the playlists and played materials are transmitted by a platform side or not before using the playlists every time, and is only used for playing the material files transmitted by the platform side. Small materials such as html (htm) files, playlist xml files and txt text files can be verified and operated fully; and if verification and full-text operation are applied to large materials such as picture files and video files, the processing time of the network terminal is occupied to a large extent, and the overall playing performance of the network terminal is lowered. According to the method, large materials are processed by adopting a method for extracting certain positions of the materials and calculating verification values with a CRC32 (Cyclic Redundancy Check 32) algorithm, so that the encryption and decryption time of the network terminal can be shortened, and the integrity and the uniqueness of the material files can be ensured.
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Description

technical field

[0001] The invention relates to the technical field of communication equipment, in particular to a network terminal playback control method based on AES and material verification. Background technique

[0002] At present, media terminals mainly include vehicle-mounted media terminals and building media terminals according to places. They all have a common feature: they are playing and delivering media in mobile public places. Therefore, for terminal equipment investors, there are great requirements to ensure the safety, uniqueness and independence of equipment playback. According to current relevant data and analysis of industry information, different manufacturers have different encryption methods for media content data, some do not encrypt at all, and the media data appears on the terminal in the form of plain text; while some use overly complicated means to encrypt , Increase development costs and increase system overhead. Based on the consideration of t...

Examples

Embodiment Construction

[0015] see Figure 1 to Figure 4 As shown, a kind of network terminal playback control method based on AES and material verification of the present invention comprises the following steps:

[0016] Step 1. Encrypt the html file (or htm file), txt text file, and playlist xml file used in the advertisement content played by the network terminal through the AES algorithm on the platform side, and the materials referenced by the advertisement content played by the network terminal through the platform Upload on the terminal, and append an encrypted verification code at the end of each material;

[0017] Wherein, the html file, the txt text file and the playlist xml file used by the advertisement content played by the network terminal are encrypted by the AES algorithm at the platform end, specifically including the following steps:

[0018] Step 10. Obtain the html file, txt text file and playlist xml file used by the advertisement content on the platform side; operate the three ...