Method for verifying user identity based on the combination of digital password and voiceprint

Abstract

The invention proposes a method for verifying user identity based on the combination of digital password and voiceprint. The method belongs to the technical field of user identity identification and comprises of an initializing stage: obtaining an initialized training audio and creating a text-related general background model; of a registering stage: recording the user registered information and creating a text-related user model; of a verifying stage: recording user identification audio by the user according to the server designated order; and according to the short-time spectrum characteristics of the user identification audio and the text-related user model as well as the text-related general background model, verifying whether the voiceprint of the user identification audio belongs to a targeted user or not and whether the contents are consistent with the right numerical string text or not; obtaining the voiceprint verifying score and the text verifying score; summing the two scores according to their weights to obtain a final verifying score; and when the final verifying score exceeds the threshold value, completing the verification. According to the method of the invention, based on the verification using traditional password, the digital password and the voiceprint are combined to confirm so as to increase the security for identity verification.

Description

technical field [0001] The invention belongs to the technical field of identity verification, and in particular relates to a user identity verification method based on digital password and voiceprint joint confirmation. Background technique [0002] Traditional password-based authentication methods often use passwords or dynamic verification codes. Passwords are widely used in all aspects of production and life. However, a single password may be stolen. Once the password is lost, it will pose a great threat to account security. With the popularity of electronic technology and mobile communication tools, dynamic verification codes have also become popular. When logging in to an account on a service terminal, webpage or mobile client, users are often required to enter the SMS verification code received by the mobile phone; when using online banking for transactions, an electronic password card (also known as e-token) can be used to randomly generate dynamic digital verifica...

AI Technical Summary

Problems solved by technology

The main defect of this invention is: (1) in practical application, the user verification speech length is short, the environment is complex, and the text structure information of the verification code cannot be used by the text-independent speech verification algorithm, and it is difficult to achieve an accurate verification effect; (2) in the verification When using voiceprint and text content verification step by step, it may be rejected due to minor errors in text content recognition.

However, the main defects of this technology are: (1) Although the text-related voiceprint recognition technology is mentioned in the invention, when the user registration and verification process is described in detail, the known text structure information in the user's voice is not used ; (2) The invention only considers the voiceprint information of the user's voice, but does not consider the content of the verification text, and criminals may steal the user's recording to deceive the verification system

[0027] In addition, Chinese Patent Publication No. CN105069872A (disclosure date 2015.11.18) and Chinese Patent Publication No. CN104392353A (disclosure date 2015.03.04) both involve the use of user voice for voiceprint and dynamic verification codes for content verification, but both The specific technical method used is not specified, and it does not have enough reference for other implementers who try to use voice technology for identity verification

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