DYNAMIC CODE AND DYNAMIC VOCAL PRINT UPDATE BASED IDENTITY AUTHENTICATION PROTOCOL AND SERVER

摘要

Provided in the present invention are a dynamic code and dynamic vocal print update based identity authentication protocol and a server, comprising: receiving an identity authentication request sent by a user end; randomly generating a dynamic password of a pre-set number of bits, and generating an acoustic model of the password according to the dynamic password of the pre-set number of bits; sending the dynamic password of the pre-set number of bits to the user end; receiving an authentication audio file sent by the user end; performing voice recognition on the authentication audio file to determine voice content in the authentication audio file; extracting a first vocal print in the authentication audio file; using the acoustic model of the password to determine that the voice content in the authentication audio file is identical to the dynamic password of the pre-set number of bits and to determine that a matching value between the first vocal print and a pre-set registration vocal print is higher than a pre-set matching threshold, and sending identity authentication request success information to the user end. The present invention solves the technical problems that the risk of theft is high for the existing verification method of inputting a verification code and a password for verification, and the verification failure rate of the fingerprint verification method is high.