Method and system for authorizing digital signature of application program of set top box

An application, digital signature technology, applied in transmission systems, user identity/authority verification, electrical components, etc., can solve the problems of complex digital signature authentication methods, and achieve the effect of flexibility and simple processing mechanism

Active Publication Date: 2011-05-18
UNIONMANTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first object of the present invention is to provide a set-top box application digital signature authentication method to so...

Method used

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  • Method and system for authorizing digital signature of application program of set top box
  • Method and system for authorizing digital signature of application program of set top box
  • Method and system for authorizing digital signature of application program of set top box

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Embodiment Construction

[0051] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0052] The digital certificate of the STB application mainly implements three functions:

[0053] 1. Determine what type of machine the application can run on, that is, the hardware characteristics of the set-top box.

[0054] 2. Determine whether the application is legal and whether the application is registered with the set-top box manufacturer, that is, the security of the application.

[0055] 3. Confirm that the application corresponding to the digital certificate in the application is the application, which is equivalent to the application ID.

[0056] Segmentation and description of the digital certificate:

[0057] 1. Software information Software developer information sequence segment. Mainly describe the description information of the software and the developer information.

[0058] 2. The program summary sequence segment. Use the traditional abst...

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PUM

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Abstract

The invention relates to the relevant technical field of set top boxes, in particular to a method and system for authorizing a digital signature of an application program of a set top box. The method comprises the steps of: carrying out safe symmetrical encryption on a signature information sequence by a service end by using safe symmetrically encrypted secret keys; encrypting a signature sequence by using asymmetrically encrypted secrete keys to obtain an encrypted signature sequence, wherein a public key and the encrypted signature sequence are used as certificates; obtaining a signed application program of the set top box by the set top box, decrypting the encrypted signature sequence of the certificates by using the public key, sending verification information to the service end through safe communication; and verifying the verification information by the service end, sending the symmetrically encrypted secret keys to the set top box, decrypting the encrypted signature informationsequence by the set top box by using the symmetrically encrypted secret keys to obtain the signature information sequence and installing after verifying. The technical scheme provided by the invention is more flexible compared with a PKI (Public Key Infrastructure) digital certificate technology, and the processing mechanism is simpler.

Description

Technical field [0001] The invention relates to the technical field related to set-top boxes, in particular to a method and system for digital signature authentication of set-top box application programs. Background technique [0002] The existing digital signature authentication methods for set-top box applications are as figure 1 As shown, the public key infrastructure (Public Key Infrastructure, PKI) digital certificate technology adopts the RSA asymmetric encryption system, which is relatively safe. However, the current signature authentication method takes a long time to apply for a digital signature. At the same time, a third-party certification authority (CA, Certificate Authority) is added between the set-top box developer and the software developer, and the system is more complicated and cost is increased. Summary of the invention [0003] The first objective of the present invention is to provide a digital signature verification method for a set-top box application progr...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/32H04N21/43
Inventor 王亚骞
Owner UNIONMANTECH
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