Digital signature method based on voiceprint characterization parameters

A digital signature and characterization parameter technology, which is applied in digital data authentication, digital data protection, electronic digital data processing, etc., can solve the problems of application diversity and security improvement, and achieve the effect of strengthening security

Active Publication Date: 2020-09-22
JIANGSU OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still room for improvement in the application of biometrics in digital signature technology and the diversity and security of features.

Method used

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  • Digital signature method based on voiceprint characterization parameters
  • Digital signature method based on voiceprint characterization parameters
  • Digital signature method based on voiceprint characterization parameters

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0041] Example 1: See Figure 1-2 , the present invention provides a technical solution: a digital signature method based on voiceprint characterization parameters, comprising the following steps:

[0042] Step 1: generate plaintext m through hash encryption for the original message to be verified;

[0043] Among them, hash encryption is a many-to-one mapping method. For the target text s, hash encryption can map it to m; the basic expression of hash encryption is m=H(s).

[0044] Step 2: Voiceprint recognition and parameter extraction;

[0045] The types of parameters extracted are: spectral centroid, general extension, spectral centroid bandwidth, spectral envelope area, spectral slope, spectral kurtosis, spectral irregularity, spectral entropy, frequency band Mel energy, frequency band energy (or root mean square overall energy), frequency band (or root mean square overall energy spectrum centroid), spectral flux, spectral drop value, spectral flatness, roughness, zero-cr...

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Abstract

The invention discloses a digital signature method based on voiceprint characterization parameters, and the method for generating a digital signature comprises the steps: generating a plaintext m fora to-be-verified original message through hash encryption; performing voiceprint recognition and parameter extraction; generating a small program random password by using a parameter conversion key; encrypting the plaintext m by using a private key to generate a ciphertext s, wherein the ciphertext s is a signature file; and judging the validity of the signature by verifying whether the equation is established. The digital signature provided by the invention has the characteristics of difficulty in counterfeiting and convenience, and is safer and more reliable compared with the traditional digital key.

Description

technical field [0001] The invention relates to the field of digital signatures, in particular to a digital signature method based on voiceprint characterization parameters. Background technique [0002] In the context of big data, the complexity and diversity of information make people have higher and higher requirements for information security. The digital signature mechanism based on the principles of cryptography has become an important means to ensure information security. Non-repudiation and integrity of transmission. The present invention will mainly study the digital signature based on biometric information, and the correct identification and unique identification of biometric information is an important premise that it can be extracted as a key and applied to a digital signature scheme. Moreover, biometric features are not easy to forge and are convenient, so they are more secure than traditional digital keys, and have been widely used in cryptographic fields such...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F21/64G06F21/32G06F21/60
CPCG06F21/64G06F21/602G06F21/32
Inventor张恒廖大见张奇李宏然袁冬青张键徐伟伟焦文明顾俊
OwnerJIANGSU OCEAN UNIV