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Systems and methods for accessing encrypted content

A content, decrypted technology used in analog security/charging systems, program/content distribution protection, key distribution

Active Publication Date: 2011-02-09
CYBERLINK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, protecting encrypted multimedia content by software methods still has the disadvantage of being vulnerable to unauthorized access and copying just like unprotected content

Method used

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  • Systems and methods for accessing encrypted content
  • Systems and methods for accessing encrypted content
  • Systems and methods for accessing encrypted content

Examples

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Embodiment Construction

[0038] Embodiments of the present invention disclose a system and method for accessing encrypted multimedia content. As mentioned in the prior art, since computer systems generally operate in an open environment, an obvious disadvantage of existing software implementations is that software program codes can easily be transferred from protected memory blocks to unprotected memory areas blocks, which are dissected and analyzed. Alternatively, in many cases, access to computer memory is generally not restricted, so analysis of multimedia application software stored in open memory locations can determine the exact memory location where the encryption key is stored. In this way, with appropriate tools, interested parties can easily dump the memory block with the encrypted key, and gain the ability to access the protected content.

[0039]In this case, the present invention uses hardware and software to process the storage, decryption and decoding of multimedia content, so as to so...

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Abstract

Systems and methods for storing and accessing encrypted content are described. At least one embodiment includes a system for storing and accessing encrypted content comprising a secure hardware device coupled to a memory comprising a trusted module, wherein the hardware device is configured to receive content from a remote location, and wherein the hardware device is configured to encrypt contentand generate a key for decrypting the content. The system further comprises logic stored within the memory configured to access the encrypted content, wherein the logic comprises a plurality of decryption modules and at least one decoder.

Description

technical field [0001] The present invention relates to a method and system for data encryption, in particular to a method and system for accessing encrypted content by combining hardware and software. Background technique [0002] Over the years, digital video content has become increasingly popular with consumers. As consumers become more and more audio and video content available through broadcast, cable TV, On-Demand, fixed media, and other sources of multimedia content, consumer access to multimedia content and programming is also increasing. It becomes easier and easier. In addition, there are many readily available devices (eg, personal computers, DVD recorders) and services that allow consumers to record, time-shift, or enjoy a wide variety of video and audio content. Furthermore, with the advancement of network technology, there are more and more video content available on the network and other data services available for download, such as Internet Protocol Televi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/24H04N7/16G06F21/10H04L9/08
CPCG06F21/10
Inventor 林弘德张治中
Owner CYBERLINK