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Voiceprint password certifying method and device

A password authentication and voiceprint technology, applied in the field of information security, can solve problems such as voice deception password system, and achieve the effect of resisting deception attacks

Inactive Publication Date: 2015-05-27
DATA ASSURANCE & COMM SECURITY CENT CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem is that for the preset authentication content, the attacker can record the legitimate user’s voice in advance, and play the voice during authentication, so that the voice of the legitimate user can be faked to deceive the password system and pass the password authentication.

Method used

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  • Voiceprint password certifying method and device
  • Voiceprint password certifying method and device

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Embodiment Construction

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] The core idea of ​​the present invention is: for the legitimate users of the system, obtain their voiceprint features in advance and save them. When performing authentication, use the randomly generated password content as the information that the user needs to record. After the recorded voice information is recorded, the voiceprint feature of the authenticated user is extracted from it, and the authentication of the user to be authenticated is realized by comparing the voiceprint feature with the pre-saved voiceprint feature of the user. In this way, since the content of each password authentication process is different, the pre-recorded legitimate user's voice cannot pass the comparison detection, therefore, it can effectively res...

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Abstract

The invention discloses a voiceprint password certifying method and device. The certifying method comprises the following steps: acquiring and storing the voiceprint characteristics of each legal user in advance; randomly generating password information towards a current to-be-certified user; showing the password information to the to-be-certified user; triggering the to-be-certified user to read the shown password information and submitting corresponding audio information; extracting contained textual information and voiceprint characteristics from the audio information; comparing the textual information with the password information; at the same time, comparing the current extracted voiceprint characteristics with the voiceprint characteristics of the to-be-certified user stored in advance; if the comparison results are consistent, determining the to-be-certified user to pass the password certification; if the comparison results are not consistent, determining the to-be-certified user to fail the password certification. Through the adoption of the method and the device, deceit attack of illegal users can be resisted.

Description

technical field [0001] The invention relates to information security technology, in particular to a voiceprint password authentication method and device. Background technique [0002] In order to prevent the disclosure of user privacy information in the mobile terminal system, the mobile terminal system adopts a password system to prevent illegal users from accessing the system. The password system can be used for system screen unlocking or for specific application access control. Traditional passwords are text passwords. However, due to the limited length of the text password, there is a risk of being guessed. Biometrics is another effective authentication technique that is widely used as a password method and system. Biometric identification technology uses people's unique biological characteristics, such as fingerprints, iris, voice, facial features, and actions, as the basis for user identity authentication. Compared with text passwords, the biometric-based password ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L29/06G10L17/22
Inventor 荆继武王跃武王琼霄蔡阳雷灵光彭佳吕娜
Owner DATA ASSURANCE & COMM SECURITY CENT CHINESE ACADEMY OF SCI
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