CN104092695B - It is a kind of to improve the method that vocal print encrypts File Upload and Download - Google Patents

Abstract

The invention discloses a method for improving uploading and downloading of voiceprint encrypted files, which belongs to the field of information security. This method is based on voiceprint encryption, and maintains safe transmission of files during file upload and download. There are two main modules, voiceprint recognition collection module and encrypted file upload and download module. Among them, the voiceprint recognition acquisition module is used to collect and identify voiceprint data, and store it on the voiceprint data processing server; the encrypted file upload and download module is used to upload and download encrypted files, and complete the encryption process and decryption process of the files, Eventually the requested operation was successfully completed. The invention realizes the improvement of the process of encrypting the voiceprint file, has high reliability, can improve the security of the file uploading and downloading process, and greatly eliminates the risk of key loss.

Description

A method for improving the upload and download of voiceprint encrypted files

technical field

The invention proposes an improved voiceprint encrypted file upload and download method, which is an improvement to the file upload and download method based on voiceprint encryption, and the invention belongs to the field of computer information security.

Background technique

With the rapid development of informatization, people's demand for information security is coming one after another. Talent competition, market competition, financial crisis, and enemy agents all bring huge risks to the development of enterprises and institutions, such as internal theft, hacker attacks, and unconscious leaks. The means of stealing secrets such as secrets has become a hidden danger between people, between enterprises and between enterprises, and between countries.

Information security is an issue that any country, government, department, or industry must attach great importance to, and it is a national security strategy that cannot be ignored. File encryption is currently the most commonly used method to protect information security. It adopts transparent encryption and decryption technology to enforce data encryption without changing the user's original usage habits. This technology encrypts the data itself, whether it is separated from the operating system or illegally. In a safe environment, user data itself is safe and less dependent on the environment. The main technologies of file encryption on the market are divided into several technologies such as disk encryption, application layer encryption, and driver-level encryption. The popular RSA and AES encryption algorithms are completely open. Regardless of the algorithm, if there is no encryption key, the encrypted information cannot be opened.

However, the traditional encryption method still has certain limitations. The key is generally not easy to remember. Once it is forgotten, it is very difficult to recover. Now the trend is to use physical information (such as fingerprints) as the basis for encryption, and voiceprints are the same as fingerprints. It is also a kind of biometric technology. A voiceprint is a sound wave spectrum that carries speech information displayed by an electroacoustic instrument. The production of human language is a complex physiological and physical process between the language center of the human body and the vocal organs. The vocal organs used by people when speaking-tongue, teeth, larynx, lungs, and nasal cavities vary greatly from person to person in terms of size and shape. , so any two people's voiceprints are different. In general, people can distinguish the voices of different people through voiceprints. Therefore, encrypting files through voiceprints is also a feasible encryption method, but now using voiceprints Encrypted files still have certain limitations. The patent "A Digital Camera Image Encryption and Decryption Method Based on Voiceprint (Application No. CN200810162156)" proposes a method for encrypting and decrypting image information using voiceprint data information, but this method is also Disadvantages: The file can only be encrypted and decrypted by the same person, which is not conducive to multiple people reading the file content in different places.

In addition, the patent "Voiceprint-Based Document Encryption and Decryption Method (Application No. CN201110003202.8)" proposes to use voiceprint to encrypt and decrypt documents, so that the voiceprint can be obtained from the voice, and the data generated by the voiceprint can be conveniently used to Encrypt and decrypt documents. However, the document can only be encrypted and decrypted by the same user. It will be very difficult to upload and download documents on a distributed network, and the security is also very low.

Contents of the invention

In view of the above-mentioned defects in the prior art, the purpose of the present invention is to propose an improved method for uploading and downloading encrypted voiceprint files, aiming at proposing a new method to solve the security problem of uploading and downloading encrypted voiceprint files.

In order to solve the above problems, the present invention adopts the following technical solutions

A method for improving the uploading and downloading of voiceprint encrypted files is divided into two modules, a voiceprint recognition collection module and an encrypted file uploading and downloading module.

The specific steps of the voiceprint recognition collection module are as follows:

1) When the user's physical status is normal, randomly collect the user's voice samples 24 hours a day, and name and mark the samples.

2) Convert the collected voice data into voiceprint data through voiceprint recognition equipment.

3) Then convert the voiceprint data into binary data through certain processing.

4) A voiceprint data processing server is set up to store the voiceprint data and its corresponding binary data in one-to-one correspondence.

5) Follow the above steps in order to collect the user's voiceprint data and corresponding binary data.

6) On the voiceprint data processing server, establish a trust zone for each user, including user name and trusted usage period (time period during which voiceprint data can be called).

The specific steps of the encrypted file upload and download module are as follows:

1) User A generates voiceprint data and corresponding binary data through the voiceprint recognition device when his physical signs are normal.

2) Compare the generated voiceprint data with the voiceprint data reserved by user A in the voiceprint data processing server.

3) If the comparison is successful, the identity information of A can be confirmed.

4) If multiple comparisons are unsuccessful, A's true identity cannot be determined or A's sign status may not be normal.

5) Convert the file to be uploaded into corresponding binary data.

6) The binary data corresponding to the voiceprint data and the binary data corresponding to the file are sequentially bit-wise XOR operation, or other logical operations, but the logical operation used for encryption and the logical operation used for decryption should be corresponding, that is use the same logical operation.

7) In this way, the file has been encrypted with a voiceprint to form an encrypted file, and a trusted time stamp is stamped on it.

8) User A uploads the file data to the file server, and uploads the user name and trusted period for downloading the data to the voiceprint data processing server.

9) User B downloads the file data uploaded by user A on the file server.

10) User B generates voiceprint data through the voiceprint recognition device, and identifies his identity information on the voiceprint data processing server.

11) The file data downloaded to user B is XORed by user B's voiceprint data again (secondary encryption), stamped with a trusted time stamp, and finally uploaded to the voiceprint data processing server.

12) On the voiceprint data processing server, search the trusted area of user A to search whether there is user B, if it exists, perform an absolute value difference calculation between the trusted time stamps of user A and user B, if within the trusted use period , the binary data corresponding to the file data uploaded by user B and the voiceprint data of user A is subjected to XOR operation (one-time decryption).

13) User B downloads the processed file data from the voiceprint data processing server, and uses the binary data corresponding to his own voiceprint data to perform XOR operation (secondary decryption).

14) User B obtains the file uploaded by user A, and completes uploading and downloading of the encrypted file.

Compared with the prior art, this method has the following advantages:

1. The key will not be lost or forgotten. The voiceprint data of each person exists stably for a long period of time, and can be used for extraction and identification operations for a long time, and there is no need to actively memorize irregular and lengthy keys.

2. The collection is simple and convenient. You only need to say a word casually or deliberately to complete the collection of voiceprint data.

3. The encryption and decryption process is simple and effective. Through the logical operation of secondary encryption and secondary decryption, the file is in an encrypted state during uploading and downloading. Encryption and decryption use its own voiceprint data, and its own voice The pattern data has not been leaked.

Description of drawings

Fig. 1 is a voiceprint recognition acquisition module;

Figure 2 is an encrypted file upload and download module.

detailed description

All the features disclosed in this specification, except mutually exclusive features and/or steps, can be combined in any way.

The present invention will be described in detail below in conjunction with FIG. 1 and FIG. 2 . The method will be further described below in conjunction with the accompanying drawings and specific embodiments.

This method is divided into two modules, voiceprint recognition acquisition module and encrypted file upload and download module

The specific operation steps of the voiceprint recognition collection module are as follows:

1. When the user's physical status is normal, randomly collect the user's voice samples 24 hours a day, and name and mark the samples.

2. Convert the collected voice data into voiceprint data through voiceprint recognition equipment.

3. Then convert the voiceprint data into binary data through certain processing.

4. Set up a voiceprint data processing server to store the voiceprint data and its corresponding binary data in one-to-one correspondence.

5. Follow the above steps in order to collect the user's voiceprint data and the corresponding binary data.

6. On the voiceprint data processing server, establish a trust zone for each user, including user name and trusted usage period (time period during which voiceprint data can be called).

The specific steps of the encrypted file upload and download module are as follows:

1. User A generates voiceprint data and corresponding binary data through the voiceprint recognition device when his physical signs are normal.

2. Compare the generated voiceprint data with the voiceprint data reserved by user A in the voiceprint data processing server.

3. If the comparison is successful, the identity information of A can be confirmed.

4. If multiple comparisons are unsuccessful, A's true identity cannot be determined or A's physical status may not be normal.

5. Convert the files to be uploaded into corresponding binary data.

6. The binary data corresponding to the voiceprint data and the binary data corresponding to the file are sequentially bit-wise XOR operations, or other logical operations, but the logical operations used for encryption and the logical operations used for decryption should correspond, that is use the same logical operation.

7. In this way, the file has been encrypted with a voiceprint to form an encrypted file, and a trusted time stamp is stamped on it.

8. User A uploads the file data to the file server, and uploads the user name and trusted period of time for downloading this data to the voiceprint data processing server.

9. User B downloads the file data uploaded by user A on the file server.

10. User B generates voiceprint data through the voiceprint recognition device, and identifies his identity information on the voiceprint data processing server.

11. The file data downloaded to user B is XORed by user B's voiceprint data again (secondary encryption), stamped with a trusted time stamp, and finally uploaded to the voiceprint data processing server.

12. On the voiceprint data processing server, search the trusted area of user A to find whether user B exists. If it exists, perform an absolute value difference calculation between the trusted time stamps of user A and user B. , the binary data corresponding to the file data uploaded by user B and the voiceprint data of user A is subjected to XOR operation (one-time decryption).

13. User B downloads the processed file data from the voiceprint data processing server, and uses the binary data corresponding to his own voiceprint data to perform XOR operation (secondary decryption).

User B obtains the file uploaded by user A, and completes the upload and download of the encrypted file.

Claims (1)

1. a kind of improve the method that vocal print encrypts File Upload and Download, it is characterised in that including vocal print acquisition and storage method and Vocal print encrypts File Upload and Download method,

Described vocal print acquisition and storage method is concretely comprised the following steps：

The first step, multiple random acquisition acoustic information, is switched to voice print database；

Second step, correspondence binary data is converted into by voice print database；

3rd step, by the binary data storage of the corresponding conversion of voice print database on voice print database processing server；

On voice print database processing server, the trust region of each user is set up, the trust region of each user includes user Name and credible validity period；

Described vocal print encryption File Upload and Download method is concretely comprised the following steps：

The first step, carries out a vocal print encryption for the file of upload, stamps trusted timestamp, and upload file server；Tool Body step is as follows：

(11) user A produces voice print database and corresponding binary system by application on voiceprint recognition equipment in the case of sign is normal Data；

(12) voice print database of generation is compared with being reserved in voice print database reserved user A in voice print database processing server It is right；

(13) identity information for successfully confirming A is compared；

Repeatedly compare unsuccessful, then A true identity is uncertain or sign state of A is abnormal；

(14) it is correspondence binary data by the file translations for needing to upload；

The corresponding binary data of voice print database binary data corresponding with file is subjected to logical operation successively, one obtained Secondary vocal print encrypts the encryption file to be formed, and stamps trusted timestamp；The logical operation used and the logic that decryption is used is encrypted to transport Calculation should be corresponded to, using same logical operation；

(15) user A uploads file data to file server, and will download in the user name and credible validity period of this segment data Pass on voice print database processing server；

Second step, the file encrypted once is downloaded from file server, carries out secondary cryptographic operation, and upload to voice print database Processing server, is comprised the following steps that：

(21) user B downloads to the file data of user A uploads on file server；

(22) user B produces voice print database by application on voiceprint recognition equipment, and recognizes the body of oneself in voice print database processing server Part information；

(23) user B file data will be downloaded to, XOR is carried out by user B voice print database, secondary encryption is completed, And trusted timestamp is stamped, finally upload to voice print database processing server；

3rd step, the checking of the uploader and download person's identity of the enterprising style of writing part of voice print database processing server, confirmation is one by one Correspondence, then carry out decryption oprerations first；

I.e. on voice print database processing server, user B is searched in user A trust region, if in the presence of by user A with using Family B trusted timestamp carries out the computing of absolute difference, if in credible validity period, the file data that user B is uploaded with The user A corresponding binary data of voice print database carries out XOR, and completion is once decrypted；

4th step, downloads the file of decryption oprerations from voice print database processing server, and obtained file is downloaded in secondary decryption, It is final to obtain file；

User B is downloaded to from voice print database processing server by treated file data, and uses user B vocal print number XOR is carried out according to corresponding binary data, secondary decryption is completed；The file that user A is uploaded is obtained, encryption file is completed Upload download.