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

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

Active Publication Date: 2013-03-06
UNIONMANTECH
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  • Summary
  • 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 solve the technical problem that the set-top box application digital signature authentication method in the prior art is relatively complicated

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

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Embodiment Construction

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

[0052] The set-top box application digital certificate mainly realizes 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 program is legal, whether the application program is registered with the set-top box manufacturer, that is, the security of the application program.

[0055] 3. It is determined that the application program corresponding to the digital certificate in the application program is the application program, which is equivalent to the ID card of the application program.

[0056] Segmentation and description of digital certificates:

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

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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 information sequence 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 related technical field of set-top boxes, in particular to a set-top box application digital signature authentication method and system thereof. Background technique [0002] Existing set-top box application digital signature authentication methods such as figure 1 As shown, the adopted public key infrastructure (Public Key Infrastructure, PKI) digital certificate technology adopts the RSA asymmetric encryption system, which is relatively safe. However, the existing 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. The system is more complicated and the cost is increased. Contents of the invention [0003] The first object of the present invention is to provide a set-top box application digital signature authentication method to solve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/32H04N21/43
Inventor 王亚骞
Owner UNIONMANTECH
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