CN111327417A - Data encryption system, method and device - Google Patents
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Abstract
The invention belongs to the technical field of data encryption, and particularly relates to a data encryption system, method and device, wherein the system comprises: the spectrum key generation device is used for performing spectrum analysis on the liquid reagent and generating an encryption key according to a parameter result obtained by the analysis; encrypting means for encrypting data based on the generated key; the method has the advantages of high data security, high encryption efficiency and high cracking difficulty.
Description
Technical Field
The invention belongs to the technical field of data encryption, and particularly relates to a data encryption system, method and device.
Background
Data encryption is a long-history technology, which means that plaintext is converted into ciphertext through an encryption algorithm and an encryption key, and decryption is realized by recovering the ciphertext into plaintext through a decryption algorithm and a decryption key. Its core is cryptography.
Data encryption is still the most reliable way for computer systems to protect information. The information is encrypted by utilizing a cryptographic technology, so that the information is concealed, and the effect of protecting the safety of the information is achieved.
The data encryption technology used in cooperation with a firewall is one of the main technical means adopted for improving the security and confidentiality of an information system and data and preventing secret data from being decoded by the outside. Technically, measures are taken from two aspects of software and hardware respectively. According to different roles, data encryption technologies can be classified into data transmission encryption technologies, data storage encryption technologies, authentication technologies for data integrity, and key management technologies.
The purpose of data transmission encryption technology is to encrypt data stream in transmission, and there are two kinds of encryption, line encryption and end-to-end encryption. The line encryption focuses on the line without considering the information source and the information sink, and the security protection is provided for the secret information through different encryption keys of each line. The end-end encryption means that information is automatically encrypted by a sending end, data packet encapsulation is carried out by TCP/IP, then the information passes through the Internet as unreadable and unidentifiable data, and when the information reaches a destination, the information is automatically recombined and decrypted to form readable data.
The data storage encryption technology aims to prevent data from being decrypted in a storage link, and can be divided into ciphertext storage and access control. The former is generally realized by methods such as encryption algorithm conversion, additional encryption codes, encryption modules and the like; the latter is to examine and limit the user qualification and authority to prevent illegal users from accessing data or legal users from unauthorized accessing data.
The purpose of data integrity authentication techniques is to verify the identity of the person involved in the transfer, access and processing of information and the content of the associated data, typically including the authentication of passwords, keys, identities, data and the like. The system realizes the safety protection of data by comparing whether the characteristic value input by the verification object conforms to the preset parameter.
The key management technology comprises security measures in all links of key generation, distribution, storage, replacement, destruction and the like.
The existing encryption technology is roughly divided into symmetric encryption and asymmetric encryption, the generation and management of a key are transmitted together with encrypted data, and the risk of cracking is high. It would be desirable to develop an encryption system that completely separates the encryption key from the encrypted data. And the encrypted key generation does not depend on the encryption system of the computer system, and the data security of the computer system is greatly improved.
Disclosure of Invention
The invention mainly aims to provide a data encryption system, method and device, which have the advantages of high data security, high encryption efficiency and high cracking difficulty.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a system for data encryption based on spectral analysis, the system comprising: the spectrum key generation device is used for performing spectrum analysis on the liquid reagent and generating an encryption key according to a parameter result obtained by the analysis; encrypting means for encrypting data based on the generated key; the spectral key generation device performs spectral analysis on the liquid reagent, and the method for generating the encrypted key according to the parameter result obtained by the analysis executes the following steps: step 1: carrying out spectral analysis on the liquid reagent, and setting the obtained parameter result set as follows according to the parameter result obtained by analysis: (a, b, c …); step 2: generating a random encrypted sequence template Sm(ii) a And step 3: two parameters are selected from the obtained parameter result set to generate an encryption sequence
Wherein f isLThe method is chaotic mapping and is used for generating an encryption driving sequence, namely an initial value of the sequence at the encryption starting moment; a and b are respectively a driving parameter and a control parameter of chaotic mapping; f. ofTIn order to be a conjugate chaotic map,
the value of the ith sequence at the moment n is shown, and the value range of i is a natural number; lambda is an adjusting parameter, and the value range is (1-5); adjusting coefficient of epsilon bit, takingThe value range is (0.2-0.8).
Further, the step 1: performing spectral analysis on the liquid reagent, and executing the following steps according to a parameter result obtained by the analysis: extracting a liquid reagent required for encryption, and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; receiving the sample, and generating an optical signal by scattered light generated under the irradiation of a light source; processing the scattered light reception signals from the light detection means and generating therefrom measurement signals, performing an analysis on the measurement signals to obtain parameter information of the sample, the parameter information being used as a parameter result of the analysis.
Further, the encryption device is configured to perform the following steps according to the generated key: step 1: carrying out data transformation on data needing to be encrypted to obtain transformed data, and finishing a transformation process by using the following formula:
wherein, the DFD represents discrete Fresnel transformation, j is complex unit, T is transformed encrypted data, A0Is the key sequence value at the starting moment; k is a first transformed sequence value and is a natural number; Δ x is the first transformation step, Δ y is the second transformation step, N is the second transformation sequence value, and the lower limit of the organization range is: k + 1; step 2: performing convolution operation on the key and the transformed encrypted data to obtain a final encrypted ciphertext:
further, the spectral key generation apparatus includes: the sample preparation device is used for extracting a liquid reagent required for encryption and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; the light detection device is used for receiving the sample, scattering light generated under the irradiation of the light source and generating a light signal; and the control device is used for processing the scattered light receiving signals from the light detection device to generate measuring signals, analyzing according to the measuring signals to obtain parameter information of the sample, and taking the parameter information as a parameter result obtained by analysis.
Further, the sample preparation device comprises: a mixing device for preparing a sample containing a liquid reagent for encryption and a reaction reagent; a flow chamber for flowing the sample; a light source for illuminating the sample flowing in the flow cell; the light detection device is used for receiving scattered light generated by the sample under the irradiation of the light source and generating a light signal; the control device includes: a signal processing section and an optical signal analyzing section; the signal processing part is used for processing a scattered light receiving signal from the light detection device and generating a measuring signal according to the scattered light receiving signal, and the measuring signal comprises; the optical signal analyzing section includes: weighting means for weighting the optical signal by a spectral weighting function; detection means for detecting the weighted optical signal; the optical signal comprising a principal component and a further component, the measured weighted optical signal comprising a portion related to the amplitude of the principal component and a further portion related to a further amplitude of the further component, analysis means for modulating the measured weighted optical signal, the difference between the modulated measured weighted optical signal and the measured weighted optical signal being related to the amplitude of the principal component, determining the amplitude of the principal component of the optical signal on the basis of the modulation result, obtaining an analysis result on the basis of the amplitude of the principal component; the electric signal analysis part is used for generating corresponding waveforms according to the electric signals, obtaining analysis results according to the waveforms, obtaining sample parameter information according to the analysis results, and using the parameter information as a key for encryption.
A method of data encryption based on spectral analysis, the method performing the steps of: carrying out spectral analysis on the liquid reagent, and generating an encryption key according to a parameter result obtained by the analysis; and encrypting the data according to the generated key.
Further, the spectral key generation device performs spectral analysis on the liquid reagent, and the method for generating the encryption key according to the parameter result obtained by the analysis performs the following steps: step 1: spectroscopic analysis of liquid reagentsAnd according to the parameter result obtained by analysis, setting the obtained parameter result set as: (a, b, c …); step 2: generating a random encrypted sequence template Sm(ii) a And step 3: two parameters are selected from the obtained parameter result set to generate an encryption sequence
Wherein f isLThe method is chaotic mapping and is used for generating an encryption driving sequence, namely an initial value of the sequence at the encryption starting moment; a and b are respectively a driving parameter and a control parameter of chaotic mapping; f. ofTIn order to be a conjugate chaotic map,
the value of the ith sequence at the moment n is shown, and the value range of i is a natural number; lambda is an adjusting parameter, and the value range is (1-5); and the epsilon adjusting coefficient has a value range of (0.2-0.8).
Further, the step 1: performing spectral analysis on the liquid reagent, and executing the following steps according to a parameter result obtained by the analysis: extracting a liquid reagent required for encryption, and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; receiving the sample, and generating an optical signal by scattered light generated under the irradiation of a light source; processing the scattered light reception signals from the light detection means and generating therefrom measurement signals, performing an analysis on the measurement signals to obtain parameter information of the sample, the parameter information being used as a parameter result of the analysis.
Further, the encryption device is configured to perform the following steps according to the generated key: step 1: carrying out data transformation on data needing to be encrypted to obtain transformed data, and finishing a transformation process by using the following formula:
wherein, the DFD represents discrete Fresnel transformation, j is complex unit, T is transformed encrypted data, S0To openA key sequence value at the starting time; k is a first transformed sequence value and is a natural number; Δ x is the first transformation step, Δ y is the second transformation step, N is the second transformation sequence value, and the lower limit of the organization range is: k + 1; step 2: performing convolution operation on the key and the transformed encrypted data to obtain a final encrypted ciphertext:
a data encryption apparatus based on spectral analysis, the apparatus being a non-transitory computer readable storage medium storing computing instructions comprising: carrying out spectral analysis on the liquid reagent, and generating a code segment for encrypting a secret key according to a parameter result obtained by analysis; and a code segment for encrypting the data according to the generated key.
The data encryption system and method based on spectral analysis have the following beneficial effects: according to the invention, after the liquid reagents are reacted, the liquid reagents are subjected to spectral analysis, and because the physical characteristics of each liquid reagent are different and are influenced by the components of the liquid reagents, the pH value, the temperature and the geographical position of the reagent, the result obtained by the spectral analysis cannot be predicted. The unpredictable parameters obtained through spectral analysis are used as parameter results for encryption and can not be predicted, an innovative chaotic mapping encryption algorithm is adopted in the encryption process, the generation process of an encryption sequence is also based on a new algorithm formula, a generated key is produced in a mode completely different from the prior art, and the cracking difficulty is increased. In the encryption process, data transformation is carried out on the encrypted data, so that the encrypted data subjected to data transformation and the encrypted key can be coupled, the encrypted information can be decrypted by the receiving end, and the encryption efficiency of the transformed data is higher.
Drawings
Fig. 1 is a schematic system structure diagram of a data encryption system based on spectral analysis according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for data encryption based on spectral analysis according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating the experimental effect of comparing the cracking rate of encrypted data with the cracking rate of encrypted data in the prior art in the data encryption system, method and device based on spectral analysis according to the embodiment of the present invention.
1-experimental curve schematic diagram of prior art, 2-experimental curve schematic diagram of the invention for processing high quality voice.
Detailed Description
The method of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments of the invention.
Example 1
As shown in fig. 1, a system for data encryption based on spectral analysis, the system comprising: the spectrum key generation device is used for performing spectrum analysis on the liquid reagent and generating an encryption key according to a parameter result obtained by the analysis; encrypting means for encrypting data based on the generated key; the spectral key generation device performs spectral analysis on the liquid reagent, and the method for generating the encrypted key according to the parameter result obtained by the analysis executes the following steps: step 1: carrying out spectral analysis on the liquid reagent, and setting the obtained parameter result set as follows according to the parameter result obtained by analysis: (a, b, c …); step 2: generating a random encrypted sequence template Sm(ii) a And step 3: two parameters are selected from the obtained parameter result set to generate an encryption sequence
Wherein f isLThe method is chaotic mapping and is used for generating an encryption driving sequence, namely an initial value of the sequence at the encryption starting moment; a and b are respectively a driving parameter and a control parameter of chaotic mapping; f. ofTIn order to be a conjugate chaotic map,
the value of the ith sequence at the moment n is shown, and the value range of i is a natural number; lambda is an adjusting parameter, and the value range is (1-5); adjusting coefficient of epsilon position, and value rangeIs (0.2 to 0.8).
By adopting the technical scheme, the liquid reagents are subjected to spectral analysis after reaction, and the results obtained by spectral analysis cannot be predicted because the physical characteristics of each liquid reagent are different and are influenced by the components of the liquid reagents and also are related to the pH value, the temperature and the geographical position of the reagent. The unpredictable parameters obtained through spectral analysis are used as parameter results for encryption and can not be predicted, an innovative chaotic mapping encryption algorithm is adopted in the encryption process, the generation process of an encryption sequence is also based on a new algorithm formula, a generated key is produced in a mode completely different from the prior art, and the cracking difficulty is increased. In the encryption process, data transformation is carried out on the encrypted data, so that the encrypted data subjected to data transformation and the encrypted key can be coupled, the encrypted information can be decrypted by the receiving end, and the encryption efficiency of the transformed data is higher.
Example 2
On the basis of the above embodiment, the step 1: performing spectral analysis on the liquid reagent, and executing the following steps according to a parameter result obtained by the analysis: extracting a liquid reagent required for encryption, and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; receiving the sample, and generating an optical signal by scattered light generated under the irradiation of a light source; processing the scattered light reception signals from the light detection means and generating therefrom measurement signals, performing an analysis on the measurement signals to obtain parameter information of the sample, the parameter information being used as a parameter result of the analysis.
The method for identifying the substance and determining the chemical composition and relative content of the substance according to the spectrum of the substance is called spectral analysis, which has the advantages of sensitivity and rapidness, historically, a plurality of new elements such as rubidium, cesium, helium and the like are discovered through spectral analysis, and spectral analysis can be divided into emission spectral analysis and absorption spectral analysis according to the analysis principle; the analysis can be divided into atomic spectrum analysis and molecular spectrum analysis according to the form of the component to be measured. The spectral analysis is called atomic spectrum when the measured component is an atom, and molecular spectrum when the measured component is a molecule.
The method is called spectral analysis, where emission spectra and absorption spectra are used, and has the advantage of being very sensitive and rapid, and where the content of a certain element in a substance is 10^ -10 (minus 10 th power of 10) grams, it can be found from the spectra and thus examined, spectral analysis has found wide application in scientific technology, for example, where the semiconductor material silicon and germanium are examined to meet high purity requirements, it has been used historically, and has helped to find many new elements, for example, rubidium and cesium have been found from spectra, which have been useful for studying the chemical composition of celestial bodies, the nineteenth century, when the solar spectrum is studied, it is found that there are many dark lines in its continuous spectrum. It is known that the atmosphere of the sun contains dozens of elements such as hydrogen, helium, nitrogen, carbon, oxygen, iron, magnesium, silicon, calcium, sodium, etc. by carefully analyzing the dark lines and comparing the dark lines with characteristic lines of various atoms.
Example 3
On the basis of the above embodiment, the encryption device, the method for encrypting data according to the generated key, performs the following steps: step 1: carrying out data transformation on data needing to be encrypted to obtain transformed data, and finishing a transformation process by using the following formula:
wherein, the DFD represents discrete Fresnel transformation, j is complex unit, T is transformed encrypted data, S0Is the key sequence value at the starting moment; k is a first transformed sequence value and is a natural number; Δ x is the first transformation step, Δ y is the second transformation step, N is the second transformation sequence value, and the lower limit of the organization range is: k + 1; step 2: performing convolution operation on the key and the transformed encrypted data to obtain a final encrypted ciphertext:
by adopting the technical scheme, the data transformation of the invention uses Fresnel transformation to obtain the discrete data of the encrypted data, so that the efficiency of the encryption process is higher. Fresnel transformation is a special case of linear standard transformation, which is widely used in the optical field, and mainly for describing the propagation condition of electromagnetic waves in the near field region in air, it can also be obtained by approximation through the schiff diffraction formula.
Example 4
On the basis of the above embodiment, the spectral key generation apparatus includes: the sample preparation device is used for extracting a liquid reagent required for encryption and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; the light detection device is used for receiving the sample, scattering light generated under the irradiation of the light source and generating a light signal; and the control device is used for processing the scattered light receiving signals from the light detection device to generate measuring signals, analyzing according to the measuring signals to obtain parameter information of the sample, and taking the parameter information as a parameter result obtained by analysis.
Example 5
On the basis of the above embodiment, the sample preparation apparatus includes: a mixing device for preparing a sample containing a liquid reagent for encryption and a reaction reagent; a flow chamber for flowing the sample; a light source for illuminating the sample flowing in the flow cell; the light detection device is used for receiving scattered light generated by the sample under the irradiation of the light source and generating a light signal; the control device includes: a signal processing section and an optical signal analyzing section; the signal processing part is used for processing a scattered light receiving signal from the light detection device and generating a measuring signal according to the scattered light receiving signal, and the measuring signal comprises; the optical signal analyzing section includes: weighting means for weighting the optical signal by a spectral weighting function; detection means for detecting the weighted optical signal; the optical signal comprising a principal component and a further component, the measured weighted optical signal comprising a portion related to the amplitude of the principal component and a further portion related to a further amplitude of the further component, analysis means for modulating the measured weighted optical signal, the difference between the modulated measured weighted optical signal and the measured weighted optical signal being related to the amplitude of the principal component, determining the amplitude of the principal component of the optical signal on the basis of the modulation result, obtaining an analysis result on the basis of the amplitude of the principal component; the electric signal analysis part is used for generating corresponding waveforms according to the electric signals, obtaining analysis results according to the waveforms, obtaining sample parameter information according to the analysis results, and using the parameter information as a key for encryption.
By adopting the technical scheme, the absorption or emission spectrum (from ultraviolet to far infrared to microwave spectrum) generated by the change of the internal motion state of the molecule is generated. Molecular motion includes rotation of the whole molecule, vibration of atoms in the molecule at equilibrium positions, and movement of electrons within the molecule, and thus, molecular spectra are generally of three types: rotational spectra, vibrational spectra, and electronic spectra. The transition of electrons in molecules at different energy levels produces an electron spectrum. They are also known as the ultraviolet-visible spectrum because they are in the ultraviolet and visible regions. The electronic transition is often accompanied by a vibrational transition of lesser energy, so it is a band spectrum. Corresponding to the different vibrational energy level transitions of the same electronic energy state is the vibrational spectrum, which is in the infrared region and is called the infrared spectrum. The vibration is accompanied with the transition of the rotation energy level, so that the spectrum of the part also has more dense spectral lines, which is also called as a vibration-transition spectrum. The spectrum produced purely by transitions between molecular rotation energy levels is called the rotation spectrum. This portion of the spectrum is generally in the far infrared and microwave regions of relatively long wavelength and is referred to as the far infrared spectrum or microwave spectrum.
Example 6
A method of data encryption based on spectral analysis, the method performing the steps of: carrying out spectral analysis on the liquid reagent, and generating an encryption key according to a parameter result obtained by the analysis; and encrypting the data according to the generated key.
Example 7
On the basis of the last embodiment, the spectral key generation device performs spectral analysis on the liquid reagent, and the method for generating the encryption key according to the parameter result obtained by the analysis performs the following steps: step 1: carrying out spectral analysis on the liquid reagent, and setting the obtained parameter result set as follows according to the parameter result obtained by analysis: (a, b, c …); step 2: generating a random encrypted sequence template Sm(ii) a And step 3: two parameters are selected from the obtained parameter result set to generate an encryption sequence
Wherein f isLThe method is chaotic mapping and is used for generating an encryption driving sequence, namely an initial value of the sequence at the encryption starting moment; a and b are respectively a driving parameter and a control parameter of chaotic mapping; f. ofTIn order to be a conjugate chaotic map,
the value of the ith sequence at the moment n is shown, and the value range of i is a natural number; lambda is an adjusting parameter, and the value range is (1-5); and the epsilon adjusting coefficient has a value range of (0.2-0.8).
Example 8
On the basis of the above embodiment, the step 1: performing spectral analysis on the liquid reagent, and executing the following steps according to a parameter result obtained by the analysis: extracting a liquid reagent required for encryption, and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; receiving the sample, and generating an optical signal by scattered light generated under the irradiation of a light source; processing the scattered light reception signals from the light detection means and generating therefrom measurement signals, performing an analysis on the measurement signals to obtain parameter information of the sample, the parameter information being used as a parameter result of the analysis.
Example 9
On the basis of the above embodiment, the encryption device, the method for encrypting data according to the generated key, performs the following steps: step 1: carrying out data transformation on data needing to be encrypted to obtain transformed data, and finishing a transformation process by using the following formula:
wherein, the DFD represents discrete Fresnel transformation, j is complex unit, T is transformed encrypted data, S0Is the key sequence value at the starting moment; k is a first transformed sequence value and is a natural number; Δ x is the first transformation step, Δ y is the second transformation step, N is the second transformation sequence value, and the lower limit of the organization range is: k + 1; step 2: performing convolution operation on the key and the transformed encrypted data to obtain a final encrypted ciphertext:
example 10
A data encryption apparatus based on spectral analysis, the apparatus being a non-transitory computer readable storage medium storing computing instructions comprising: carrying out spectral analysis on the liquid reagent, and generating a code segment for encrypting a secret key according to a parameter result obtained by analysis; and a code segment for encrypting the data according to the generated key.
The above description is only an embodiment of the present invention, but not intended to limit the scope of the present invention, and any structural changes made according to the present invention should be considered as being limited within the scope of the present invention without departing from the spirit of the present invention.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and related description of the system described above may refer to the corresponding process in the foregoing method embodiments, and will not be described herein again.
It should be noted that, the system provided in the foregoing embodiment is only illustrated by dividing the functional modules, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the modules or steps in the embodiment of the present invention are further decomposed or combined, for example, the modules in the foregoing embodiment may be combined into one module, or may be further split into multiple sub-modules, so as to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not to be construed as unduly limiting the present invention.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes and related descriptions of the storage device and the processing device described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Those of skill in the art would appreciate that the various illustrative modules, method steps, and modules described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that programs corresponding to the software modules, method steps may be located in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. To clearly illustrate this interchangeability of electronic hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as electronic hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing or implying a particular order or sequence.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A data encryption system, the system comprising: the spectrum key generation device is used for performing spectrum analysis on the liquid reagent and generating an encryption key according to a parameter result obtained by the analysis; encrypting means for encrypting data based on the generated key; the method is characterized in that the spectral key generation device performs spectral analysis on the liquid reagent, and generates the encrypted key according to the parameter result obtained by the analysis, and the method comprises the following steps: step 1: carrying out spectral analysis on the liquid reagent, and setting the obtained parameter result set as follows according to the parameter result obtained by analysis: (a, b, c …); step 2: generating a random encrypted sequence template Sm(ii) a And step 3: two parameters are selected from the obtained parameter result set to generate an encryption sequence
Wherein f isLThe method is chaotic mapping and is used for generating an encryption driving sequence, namely an initial value of the sequence at the encryption starting moment; a and b are respectively a driving parameter and a control parameter of chaotic mapping; f. ofTIn order to be a conjugate chaotic map,
the value of the ith sequence at the moment n is shown, and the value range of i is a natural number; lambda is an adjusting parameter, and the value range is (1-5); and the epsilon adjusting coefficient has a value range of (0.2-0.8).
2. The system of claim 1, wherein the step 1: performing spectral analysis on the liquid reagent, and executing the following steps according to a parameter result obtained by the analysis: extracting a liquid reagent required for encryption, and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; receiving the sample, and generating an optical signal by scattered light generated under the irradiation of a light source; processing the scattered light reception signals from the light detection means and generating therefrom measurement signals, performing an analysis on the measurement signals to obtain parameter information of the sample, the parameter information being used as a parameter result of the analysis.
3. The system of claim 2, wherein the encryption means, the method for encrypting data based on the generated key, performs the steps of: step 1: carrying out data transformation on data needing to be encrypted to obtain transformed data, and finishing a transformation process by using the following formula:
wherein, the DFD represents discrete Fresnel transformation, j is complex unit, T is transformed encrypted data, S0Is the key sequence value at the starting moment; k is a first transformed sequence value and is a natural number; Δ x is the first transformation step, Δ y is the second transformation step, N is the second transformation sequence value, and the lower limit of the organization range is: k + 1; step 2: performing convolution operation on the key and the transformed encrypted data to obtain a final encrypted ciphertext:
4. the system of claim 3, wherein the spectral key generation apparatus comprises: the sample preparation device is used for extracting a liquid reagent required for encryption and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; the light detection device is used for receiving the sample, scattering light generated under the irradiation of the light source and generating a light signal; and the control device is used for processing the scattered light receiving signals from the light detection device to generate measuring signals, analyzing according to the measuring signals to obtain parameter information of the sample, and taking the parameter information as a parameter result obtained by analysis.
5. The system of claim 4, wherein the sample preparation device comprises: a mixing device for preparing a sample containing a liquid reagent for encryption and a reaction reagent; a flow chamber for flowing the sample; a light source for illuminating the sample flowing in the flow cell; the light detection device is used for receiving scattered light generated by the sample under the irradiation of the light source and generating a light signal; the control device includes: a signal processing section and an optical signal analyzing section; the signal processing part is used for processing a scattered light receiving signal from the light detection device and generating a measuring signal according to the scattered light receiving signal, and the measuring signal comprises; the optical signal analyzing section includes: weighting means for weighting the optical signal by a spectral weighting function; detection means for detecting the weighted optical signal; the optical signal comprising a principal component and a further component, the measured weighted optical signal comprising a portion related to the amplitude of the principal component and a further portion related to a further amplitude of the further component, analysis means for modulating the measured weighted optical signal, the difference between the modulated measured weighted optical signal and the measured weighted optical signal being related to the amplitude of the principal component, determining the amplitude of the principal component of the optical signal on the basis of the modulation result, obtaining an analysis result on the basis of the amplitude of the principal component; the electric signal analysis part is used for generating corresponding waveforms according to the electric signals, obtaining analysis results according to the waveforms, obtaining sample parameter information according to the analysis results, and using the parameter information as a key for encryption.
6. Data encryption method based on the system of one of claims 1 to 5, characterized in that it performs the following steps: carrying out spectral analysis on the liquid reagent, and generating an encryption key according to a parameter result obtained by the analysis; and encrypting the data according to the generated key.
7. The method of claim 6, wherein the spectral key generation device performs a spectral analysis of the liquid reagent, and wherein the method of generating the cryptographic key based on the parameter results from the analysis performs the steps of: step 1: carrying out spectral analysis on the liquid reagent, and setting the obtained parameter result set as follows according to the parameter result obtained by analysis: (a, b, c …); step 2: generating a random encrypted sequence template Sm(ii) a And step 3: two parameters are selected from the obtained parameter result set to generate an encryption sequence
Wherein f isLThe method is chaotic mapping and is used for generating an encryption driving sequence, namely an initial value of the sequence at the encryption starting moment; a and b are respectively a driving parameter and a control parameter of chaotic mapping; f. ofTIn order to be a conjugate chaotic map,
the value of the ith sequence at the moment n is shown, and the value range of i is a natural number; lambda is an adjusting parameter, and the value range is (1-5); and the epsilon adjusting coefficient has a value range of (0.2-0.8).
8. The method of claim 7, wherein the step 1: performing spectral analysis on the liquid reagent, and executing the following steps according to a parameter result obtained by the analysis: extracting a liquid reagent required for encryption, and mixing another reaction reagent of the liquid reagent to prepare a sample for encryption; receiving the sample, and generating an optical signal by scattered light generated under the irradiation of a light source; processing the scattered light reception signals from the light detection means and generating therefrom measurement signals, performing an analysis on the measurement signals to obtain parameter information of the sample, the parameter information being used as a parameter result of the analysis.
9. The method of claim 8, wherein the encryption means, the method for encrypting data based on the generated key, performs the steps of: step 1: carrying out data transformation on data needing to be encrypted to obtain transformed data, and finishing a transformation process by using the following formula:
wherein, the DFD represents discrete Fresnel transformation, j is complex unit, T is transformed encrypted data, S0Is the key sequence value at the starting moment; k is a first transformed sequence value and is a natural number; Δ x is the first transformation step, Δ y is the second transformation step, N is the second transformation sequence value, and the lower limit of the organization range is: k + 1; step 2: performing convolution operation on the key and the transformed encrypted data to obtain a final encrypted ciphertext:
10. a data encryption apparatus based on the method of any one of claims 6 to 9, characterized in that the apparatus is a non-transitory computer-readable storage medium storing computing instructions comprising: carrying out spectral analysis on the liquid reagent, and generating a code segment for encrypting a secret key according to a parameter result obtained by analysis; and a code segment for encrypting the data according to the generated key.
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| CN113484281A (en) * | 2021-05-28 | 2021-10-08 | 太原理工大学 | Optical encryption device and method based on unique light scattering characteristics of biological tissues |
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