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Voiceprint password authentication method and system

A password authentication and voiceprint technology, which is applied in the field of password authentication, can solve problems such as the inapplicability of the user voiceprint password authentication system, unfavorable password update of the voiceprint password authentication system, etc., and achieve the effect of convenient real-time online generation and frequent changes

Active Publication Date: 2018-04-27
ANHUI IFLYTEK INTELLIGENT SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the training of the background model often requires the collection of a large amount of voice data related to the cipher text, which obviously cannot be applied to the user-defined voiceprint password authentication system, and is not conducive to the password update of the voiceprint password authentication system.

Method used

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  • Voiceprint password authentication method and system
  • Voiceprint password authentication method and system
  • Voiceprint password authentication method and system

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Embodiment Construction

[0072] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementation manners.

[0073] Firstly, the voiceprint password authentication process in the prior art will be briefly introduced below.

[0074] Such as figure 1 Shown is a schematic diagram of the voiceprint password authentication process in the prior art, including the following steps:

[0075] Step 101: receiving a voice signal input by a user;

[0076] Step 102: extracting the voiceprint feature sequence in the voice signal;

[0077] Step 103: performing speech recognition on the speech signal to obtain the ciphertext;

[0078] Step 104: Obtain the background model corresponding to the pre-trained ciphertext;

[0079] Step 105: Construct the user's voiceprint password model according to the user's registered voice sig...

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Abstract

The invention discloses a voiceprint password authentication method and system, belonging to the technical field of password authentication. The method includes: receiving a voice signal input by a user; performing voice recognition on the voice signal to obtain a cipher text; determining whether there is a background model corresponding to the cipher text; if yes, obtaining the background model; if not, then Expand the pre-trained pronunciation unit model according to the cipher text to obtain a background model corresponding to the cipher text; use the voiceprint feature sequence in the voice signal, the background model and the user's voiceprint password The model authenticates the user. By using the method and system, the requirements of user-defined passwords and frequent password changes can be met.

Description

technical field [0001] The invention relates to the technical field of password authentication, in particular to a voiceprint password authentication method and system. Background technique [0002] Voiceprint authentication is a technology that automatically confirms the speaker's identity based on the voiceprint information of the speaker's physiological and behavioral characteristics reflected in the user's input voice signal. Compared with other biometric authentication technologies, voiceprint authentication has many advantages such as simplicity, accuracy, economy and good scalability, and can be widely used in security verification, control and other aspects. [0003] Voiceprint password authentication is a text-dependent (Text-Dependent) voiceprint authentication technology, which requires the user to input voice to determine the password text, and confirm the identity of the speaker according to the characteristics of the voiceprint. In the voiceprint password auth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/32G10L17/04G10L17/02
Inventor 殷兵魏思柳林刘俊华张程风王建社刘海波胡国平胡郁金鑫
Owner ANHUI IFLYTEK INTELLIGENT SYST
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