CN1815484A - Digitalized authentication system and its method - Google Patents
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Abstract
The invention is in use for picking-up, keeping, and identifying information of authenticating user, and is capable of reproducing scene of carrying out communication/dealing with users. The system includes following parts: voice print verification center stores voice print model of registered users, and carries out voice print verification for user's voice; through application server to receive voice of user, digitized authentication center transfers the voice to the said voice print verification center; if verification is passed, then through the server to receive digitalized information to be authenticated from user, the authentication center sends the authenticated information associated to personal information to mass storage device; personal information base in use for storing personal information corresponding to voice print model; mass storage device is in use for storing the said associated information. The invention also discloses relevant method.
Description
Technical Field
The invention relates to a digital authentication system and a method thereof, which are used for digitally extracting, storing and authenticating information required to be authenticated by a user and reproducing a language scene for communication/transaction of the user.
Background
With the progress of socio-economic and the development of business, the demand for interpersonal communication and transaction is increasing. When making a contract or making a commitment, a party needs protection of a legal system, and meanwhile, the party also hopes to be capable of authenticating or notarizing the same content or the commitment content in a convenient mode so as to protect own rights and interests. In terms of the legal system, the tenth definition of the contractual act of the people's republic of china: "parties contract, written, spoken and other forms". The "national notarization of the people's republic of China", which was performed from 3/1.2006, also included "preservation evidence" in the original notarization item range.
However, in a real environment, there is no third party organization with sufficient credibility and influence to provide the corresponding information authentication service, and the current organizations such as various levels of notarization departments, material evidence authentication centers, etc. still perform notarization in a manual mode within a predetermined working time, and require the parties to use the data carrier of paper media to perform the notarization in the corresponding organizations according to a certain program, thereby consuming the time of the parties who want to perform the notarization, and the efficiency is low due to limited human resources. For a particular file, document, etc., the principal can go to the corresponding official office for manual commitment so that the desired protection can be obtained. For oral engagement, no matter policy and legal system or social integrity system, a correspondingly perfect environment is lacked. When a party needs to maintain the legitimate rights of the party, the private recording can be used as an auxiliary means or a bystander, but the legal collection and the notarization storage of the recording are difficult to realize. Thus, for a large number of daily oral engagements, it is often "persuasive". When the other party is in a state of no communication, the responsibility of the other party is difficult to be traced to make up the loss of the other party.
While identity authentication means such as digital certificates can support identity authentication and information security, they have the defect of "no person is identified by the identity authentication means"; moreover, the use of digital certificates requires that the client device has a certain computing power, thereby limiting the application universality and instantaneity.
There is a great need for digital authentication and protection of spoken voice, as well as information including electronic images, electronic files, etc. The voice is the most basic and convenient communication mode and transaction way for human, and simultaneously contains identity information, explained tone and attitude, explained content and other information of the party, which cannot be covered by other biological characteristics. The extracted and retained authentication voice information can reproduce the language scene of the current communication/transaction of the parties. Meanwhile, existing voice recording equipment (such as a microphone, a fixed telephone, a mobile phone and the like) is popular and cheap, and is particularly suitable for application based on a telecommunication network and the Internet. There is thus a need for a system that provides convenient, remote, location and time independent, real-time digital information authentication services to a party.
Disclosure of Invention
Based on the above disadvantages in the existing artificial notarization and the lack of notarization force of oral constraint, a digital authentication system and a digital authentication method thereof are provided, which are used for digitally extracting, storing and authenticating the information to be authenticated of the user and reproducing the language scene of communication/transaction of the user.
According to a first aspect of the present invention, a digital authentication system is provided, which includes: the voice print verification center stores a voice print model of a registered user and is used for performing voice print verification on the voice of the user by using the voice print model; the digital authentication center is used for receiving voice of the user for voiceprint authentication through the application server and transmitting the voice to the voiceprint authentication center, authenticating the digital information to be authenticated of the user received through the application server after the voice is successfully authenticated, and storing the authenticated digital information and the personal information of the user in the mass data storage device in a correlation manner; the personal information base is used for storing the personal information of the user corresponding to the voiceprint models of the user one by one; and the mass data storage device is used for storing the associated digital information and personal information which are authenticated by the user.
According to a second aspect of the present invention, a digital authentication method is provided, including: receiving voice of user for voiceprint verification from application server by digital authentication center and transmitting to voiceprint verification center; performing voiceprint verification on the received voice of the user by a voiceprint verification center; after the verification is successful, the digital authentication center confirms the identity of the user and authenticates the digital information received from the application server for authentication; the digital authentication center stores the authenticated digital information in the mass data storage device in association with the personal information of the user.
The invention effectively provides a system and a method for carrying out digital authentication on the information which needs to be authenticated by the user, so that a large amount of manpower and material resources do not need to be spent on notarization to a designated notarization organ for notarization, and the system and the method are not limited by the region or the time when the notarization is carried out, and the authentication efficiency is maximized. In addition, by using the digital authentication system and method of the invention, the oral appointment can be digitally authenticated, thereby solving the problem that the traditional notarization institution is difficult to notarize the oral appointment, and greatly facilitating the right of the user to select to trade.
Drawings
FIG. 1 shows a schematic block diagram of a digital authentication system according to the present invention;
FIG. 2 shows a schematic block diagram of a digital certificate authority in a digital certificate authority;
FIG. 3 shows a schematic block diagram of a voiceprint verification center in a digital authentication system;
FIG. 4 shows a schematic block diagram of an example application server in a digital authentication system when authenticating a spoken appointment;
FIG. 5 shows a flow diagram of a digital authentication method according to the present invention;
FIG. 6 illustrates a flow chart for digitally authenticating a user's oral appointment.
Detailed Description
The above and other objects, features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings of the present invention.
Fig. 1 is a structural diagram of a digital authentication system according to the present invention. As shown in fig. 1, the digital authentication system 1 includes a digital authentication center 10, a voiceprint verification center 20, a personal information base 30, a mass data storage 40, an application server 50, and a user 60. The application server 50 receives the voice of the user 60 for authentication through a mobile phone, internet, VoIP, etc. and transmits the voice of the user to the digital authentication center 10 through an application interface, and receives and provides the digital information of the user for authentication to the digital authentication center 10. The digital authentication center 10 transmits the user voice for authentication to the voiceprint authentication center 20, performs voiceprint authentication on the user voice by the voiceprint authentication center 20, and transmits the authentication result back to the application server 50. After the verification is successful, the digital authentication center 10 authenticates digital information for authentication, such as voice persistence, a will order, a verbal engagement, or an electronic document including an electronic file, an image file, an e-mail, a WEB page, etc., received from the application server 50, such as digital authentication on the content and delivery time of the digital information for authentication, and stores the authenticated digital information in the mass data storage 40 in association with user personal information, such as an identification number, a bank transaction certificate, etc., extracted from the personal information repository 30. When the digital authentication center 10 receives an authorized query request from the application server 50, the corresponding digital information of the authenticated user is retrieved from the mass data storage 40 and fed back. The digital certificate authority 10 needs to be operated and managed by a third party certificate authority having a certain public trust.
The voiceprint authentication center 20 is used to confirm whether the voice provided by the user during authentication is consistent with the identity declared by the user (i.e. the pre-trained voiceprint model corresponding to the identity).
The application server 50 interacts with the digital certificate authority 10 through a predefined application interface. The application interface realizes the multi-loop verification and bidirectional data transmission functions between the digital authentication center and the application server in a mode of standard FTP protocol, for example. Meanwhile, the interaction between the interface and the application server should have a certain secure communication mechanism to prevent attacks or damages from the internet or the local area network. The implementation modes can be as follows:
1. the application server 50 is placed in the same intranet as the digital authentication center 10, and machines in the intranet are mutually trusted, so that an additional security mechanism is not needed;
2. the application server 50 is installed outside the digital authentication center 10, in this case, a network security communication mechanism such as SSL or VPN needs to be added between the application server and the digital authentication center, and for the key data, a mechanism such as PKI CA digital certificate can be considered to be added to ensure the security.
3. Whether the application server 50 or the digital certificate 10, as long as there is an interface exposed on the external network, a protection mechanism such as a firewall needs to be applied.
For mass data storage device 40, appropriate rights control and encryption/decryption means may be added to the associated digitized information and user profile that has been authenticated to increase its level of security. Therefore, when extracting the authenticated user information, the original key is provided for decryption.
Although two users 60 are included in fig. 1, it is apparent that only a single user 60 or more than two users 60 may be included. The single user utilizes a digital authentication system to authenticate information such as verbal commitments, delegated stores, etc., such as to authenticate a will or memo retention, etc.
Fig. 2 is a block diagram of a digital certificate authority in the digital certificate authority. The digital authentication center 10 includes an identity confirmation control unit 102, an authentication information generation unit 103, and a communication unit 101. The identity confirmation control unit 102 is configured to transmit the received user voice for confirming the identity to the voiceprint verification center 20 for verification, and transmit the verification result to the application server 50; when the verification is successful, the personal information of the user, for example, an identification number, a bank transaction certificate, etc., is extracted from the personal information repository 30 to be provided to the authentication information generating unit 103. The authentication information generation unit 103 is configured to receive digitized information to be authenticated by a user from the application server 50 via the communication unit 101, add authentication information including auxiliary information for authentication (e.g., a delivery time of the digitized information or a source thereof or digitized certificate or verification information of a third-party certification authority itself) to perform authentication, and then transmit the authenticated digitized information and personal information corresponding to the digitized information to the mass data storage device 40 via the communication unit 101 for associated storage.
How the voiceprint authentication center performs voiceprint authentication on the user's voice will be described below in connection with the voiceprint authentication center 20 of fig. 3. Fig. 3 is a block diagram of the voiceprint authentication center 20. The voiceprint feature extraction unit 201 is configured to discard invalid sound segments (e.g., silence, noise, etc.) according to the speech spoken by the user, frame the speech signal, and extract a set of feature vectors, called voiceprint features, from the speech signal, where the feature vectors may represent parameters, pronunciation modes, characteristics, etc. of the user's pronunciation organs, for use in subsequent modeling or comparison. The voiceprint feature extraction unit 201 is a module common to the voiceprint model creation unit 202 and the voiceprint pattern matching unit 204. The voiceprint model creating unit 202 is configured to create a specific voiceprint model for a voiceprint feature extracted from the speech for user modeling by the voiceprint feature extracting unit 201. The modeling method may be based on a probability distribution (e.g., GMM-UBM), or based on a neural network (i.e., ANN), or other pattern classifier, etc., to fully characterize the personality information in the user's pronunciation. The voiceprint model building unit 202 generally builds the voiceprint model in an offline manner when registering user information. The voiceprint pattern matching unit 204 is configured to compare a voiceprint feature extracted from a verification voice of a user with an established voiceprint model corresponding to a claimed identity to obtain a similarity score, and then confirm whether to accept a login request of the user or reject the user according to a preset threshold, thereby completing an identity verification process based on a voiceprint recognition (confirmation) technology.
Through the digital authentication system, a user can carry out digital authentication on electronic documents and the like including image files and electronic files; meanwhile, the user can also carry out digital authentication on the orally appointed voice. So that the principal can describe the content summary of the information such as the image, the electronic document, etc. in the form of voice as necessary in order to ensure the association between the information such as the corresponding electronic document, etc. and the principal. Therefore, the transaction cost is reduced, and the efficiency is improved. The following describes in detail how digital authentication is achieved for a spoken appointment.
Fig. 4 is a schematic configuration diagram of an application server in authenticating a prefix contract in the digital authentication system. Referring to fig. 4, the application server 50 corresponds to an IVR server, but has embedded therein a call to an application interface of the digital authentication center 10. The application server 50 includes a call connection establishing unit 501, a voice collecting unit 502, a recording/playing unit 503, and a communication unit (not shown). The call connection establishing unit 501 is used to establish a call connection with a party (user) of both parties of a contract, for example, in a calling or called manner when a single user is established or when both users are authenticated together; the voice collecting unit 502 is configured to play a prompt tone, collect a segment of voice of the user, and send the voice to the voiceprint verification center 20 for voiceprint verification; and the recording/playing unit 503 is used for recording the oral retention of a single user or the like, or recording the description or discussion of oral agreement and the like after the calling channels of the two parties are put through after the two parties verify that the two parties do not have errors, sending the voice to the digital authentication center 10 through the communication unit after the completion, storing the voice in the mass data storage device after the voice is authenticated by the digital authentication center 10, and playing the voice through the digital authentication center 10 when a query request is received.
As previously mentioned, when digitally authenticating the oral appointment, the authentication may be performed in a single-user or multi-user manner. When the authentication is performed in the single-user mode, the user is connected to the application server 50 through a telephone or the like, and after the voiceprint authentication is completed, the voice message to be retained or authenticated, such as a will to be authenticated, a memo for some important events, or the like, is directly spoken to the digital authentication system 1. When the authentication is performed in a multi-user mode, a plurality of appointed users are all connected to the application server 50 through the telephone and the like, after the voiceprint authentication is respectively completed, the application server firstly connects the communication channel between the users, and then the users can speak the voice messages to be reserved or authenticated, such as the oral protocols to be authenticated and the like, to the system in a conversation or conference call mode.
Fig. 5 shows a flow chart of a digital authentication method according to the present invention. First, at S511, the voice of the user for voiceprint verification is received from the application server 50 by the digital certificate authority 10 and transmitted to the voiceprint verification center 20. At S512, voiceprint authentication is performed on the received user speech by the voiceprint authentication process 220. At S513, if the verification is successful, the digital authentication center 10 confirms the authenticity of the user and authenticates the digital information received from the application server 50, which is used by the user for authentication. Thereafter, at S514, the digital authentication center 10 stores the authenticated digital information in the mass data storage 40 in association with the personal information of the user.
FIG. 6 illustrates a flow chart for digitally authenticating a user's oral appointment.
In S601, each party plugs in the digital authentication system 1 through the application server 50, and the digital authentication system 1 plays a prompt voice "please perform voiceprint authentication first, so as to access subsequent services. Please follow … … ";
after the user follows a section of voice for verification, in S602, the application server 50 sends the verification voice followed by the user to the digital authentication center 10 through the application interface with the secure communication mechanism, the digital authentication center 10 encrypts the verification voice followed by the user by using a corresponding secure mechanism (such as a digital certificate, etc.), and transmits the encrypted verification voice to the voiceprint verification center 20 for voiceprint verification, and at the same time, stores the section of voice data used by the user for voiceprint verification in the mass data storage device 40;
in S603, after the identities of the parties are confirmed, the digital authentication system 1 prompts "please start talking, and the digital authentication system 1 records and archives the talking" so that the parties start to describe and contract the content; in the process, the system of the fixed or mobile phone operator provides the access of voice data, the phone number used by the system, the call time and other information, and the digital authentication center 10 uses a corresponding security mechanism (such as a digital certificate and the like) to authenticate and encrypt the appointed voice content, phone number, time and the like and store the authenticated voice content, phone number, time and the like in the mass data storage device 40;
at S604, the parties are all stated by "#". At this time, the system prompts "please press 1 if the recording needs to be listened again, and please press 7 if the recording does not need to be listened again":
(a) if all parties press 1 within the set time, the system prompts that the recording of the oral appointment at this time stored in the central database of the user is played at present, then the recording is played to the end, and the following prompts are given: if the recording is confirmed, please press 7; if there is objection, the contract content needs to be supplemented, or contract accessories are added, please press 12; if the content needs to be deleted, the authentication contract is restarted, please press 13. If all parties press 12, the system prompts 'restart … …' to start to continue to add the recording in step 3; if all parties press 13, the system deletes the current recording record, prompts 'restart … …', and then restarts recording in step 3;
(b) if all parties press ' 7 ', the system prompts ' the oral appointment of this time is stored in the database of the center of me ', the contract number is XXXX, you thank you for use, please hang up '.
In the above steps, if the key selection of any one time is different for each party, the digital authentication system will re-confirm one by one or automatically select default action. In addition, when the user agrees to use a certain application, it is noted that the digital authentication system 1 is allowed to send the recorded voice, the document number, etc. of the orally-appointed document it has saved to a specific electronic mailbox or a mobile phone to be left as a memo.
The digital authentication system not only can carry out digital authentication on images, electronic documents and the like, but also can provide effective protection for oral appointment, thereby carrying out digital authentication on various information without being limited by regions and time, and greatly reducing the social transaction cost and the law execution cost.
Although preferred embodiments of the present invention have been described using specific terms, such description is for illustrative purposes only, and it is to be understood that various changes and modifications may be made without departing from the spirit or scope of the invention.
Claims (18)
1. A digital authentication system, comprising:
the voice print verification center stores a voice print model of a registered user and is used for performing voice print verification on the voice of the user by using the voice print model;
the digital authentication center is used for receiving voice of the user for voiceprint authentication through the application server and transmitting the voice to the voiceprint authentication center, authenticating the digital information to be authenticated of the user received through the application server after the voice is successfully authenticated, and storing the authenticated digital information and the personal information of the user in the mass data storage device in a correlation manner;
the personal information base is used for storing the personal information of the user corresponding to the voiceprint models of the user one by one;
and the mass data storage device is used for storing the associated digital information and personal information which are authenticated by the user.
2. The system of claim 1, wherein the voiceprint verification center comprises:
the voice print feature extraction unit is used for extracting a voice print feature sequence which can represent the pronunciation characteristics of the user voice from the user voice;
the voiceprint model establishing unit is used for establishing a voiceprint model library representing the pronunciation characteristics of the user according to the extracted voiceprint characteristic sequence;
and the voiceprint pattern matching unit is used for extracting a voiceprint characteristic sequence from the verification voice input by the user and comparing the voiceprint characteristic sequence with a corresponding voiceprint model in a voiceprint model library so as to confirm the identity of the user.
3. The system of claim 1 or 2, wherein the digital certificate authority comprises:
the identity confirmation control unit is used for transmitting the received voice for voiceprint verification to a voiceprint verification center for verification so as to confirm the identity of the user;
and an authentication information generation unit for authenticating the digitized information for authentication received by the application server and storing the authenticated digitized information in the mass data storage device in association with the personal information corresponding thereto extracted from the personal information base.
4. A system as claimed in claim 1 or 2, wherein the digital certificate authority stores the authenticated information and the personal information of the user in an encrypted manner in the mass data storage device.
5. A system as claimed in claim 1 or 2, wherein the digital certificate authority sets access rights to the mass data storage.
6. The system of claim 1 or 2, wherein the digital certificate authority authenticates information to be authenticated by the user using digital certificates.
7. The system of claim 1, wherein the information that the user is to authenticate comprises an electronic document.
8. The system of claim 1, wherein the information that the user is to authenticate includes a verbal appointment.
9. The system of claim 8, wherein the application server comprises:
a call connection establishing unit for establishing a call connection with one user or a plurality of users;
the voice acquisition unit is used for playing prompt tones, respectively acquiring a section of voice of each user, and sending the acquired user voice to a voiceprint verification center for voiceprint verification;
and the recording/playback unit is used for recording the oral appointment among one or more users, transmitting the recording to the digital authentication center and playing the recording according to the query request of the user.
10. A digital authentication method, comprising:
receiving voice of user for voiceprint verification from application server by digital authentication center and transmitting to voiceprint verification center;
performing voiceprint verification on the received voice of the user by a voiceprint verification center;
after the verification is successful, the digital authentication center confirms the identity of the user and authenticates the digital information received from the application server for authentication;
the digital authentication center stores the authenticated digital information in the mass data storage device in association with the personal information of the user.
11. The method of claim 10, wherein the step of voiceprint authentication of the received user's voice by the voiceprint authentication center comprises:
a voiceprint feature extraction step, which is used for extracting a voiceprint feature sequence which can represent the pronunciation characteristics of the user voice;
a voiceprint model establishing step, which is used for establishing a voiceprint model library representing the pronunciation characteristics of the user according to the extracted voiceprint characteristic sequence;
and a voiceprint pattern matching step, which is used for extracting a voiceprint characteristic sequence from the verification voice input by the user and comparing the voiceprint characteristic sequence with a corresponding voiceprint model in a voiceprint model library so as to confirm the identity of the user.
12. The method of claim 10 or 11, wherein the digital certificate authority comprises:
the identity confirmation control unit is used for transmitting the received voice for voiceprint verification to a voiceprint verification center for verification so as to confirm the identity of the user;
and an authentication information generation unit for authenticating the digitized information for authentication received by the application server and storing the authenticated information in the mass data storage in association with the personal information extracted from the personal information base.
13. A method as claimed in claim 10 or 11, wherein the authenticated information and the personal information of the user are stored in an encrypted manner in the mass data storage device.
14. A method as claimed in claim 10 or 11, wherein the access rights to the mass data storage are set by a digital certificate authority.
15. The method of claim 10 or 11, wherein the digital certificate authority authenticates information to be authenticated by the user using a digital certificate.
16. The method of claim 10, wherein the information that the user is to authenticate comprises an electronic document.
17. The method of claim 10, wherein the information that the user is to authenticate includes a verbal appointment.
18. The method of claim 17, wherein before the step of receiving voice of the user for voiceprint authentication from the application server and transmitting to the voiceprint authentication center, further comprising:
a call connection establishing step for establishing a call connection with one user or a plurality of users; and
a voice collection step, which is used for playing the prompt tone and respectively collecting a section of voice of each user, and sending the collected user voice to a voiceprint verification center for voiceprint verification;
wherein,
after the verification is successful, recording the individual or oral appointment between the users, transmitting the recording to a digital authentication center, and playing the recording according to the query request of the users.
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| WO2008061463A1 (en) * | 2006-11-20 | 2008-05-29 | Huawei Technologies Co., Ltd. | The method and system for authenticating the voice of the speaker, the mrcf and mrpf |
| WO2009138012A1 (en) * | 2008-05-14 | 2009-11-19 | 华为技术有限公司 | Method, device and systym for speech processing |
| WO2010142194A1 (en) * | 2009-06-12 | 2010-12-16 | 华为技术有限公司 | Speaker identification method, apparatus and system |
| CN102215110A (en) * | 2011-06-28 | 2011-10-12 | 鸿富锦精密工业（深圳）有限公司 | Identity authentication system and method |
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| WO2009138012A1 (en) * | 2008-05-14 | 2009-11-19 | 华为技术有限公司 | Method, device and systym for speech processing |
| WO2010142194A1 (en) * | 2009-06-12 | 2010-12-16 | 华为技术有限公司 | Speaker identification method, apparatus and system |
| CN101923853B (en) * | 2009-06-12 | 2013-01-23 | 华为技术有限公司 | Speaker recognition method, equipment and system |
| CN102215110A (en) * | 2011-06-28 | 2011-10-12 | 鸿富锦精密工业（深圳）有限公司 | Identity authentication system and method |
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