Encryption method and system based on double-color LED with vertical laminated structure
By using an encryption method based on a vertically stacked dual-color LED structure, digital information is encoded into spectral information and decoded using a neural network. This method incorporates signal modulation and demodulation steps, which solves the encryption vulnerability and data storage risk in high-computing-power environments and achieves highly secure and intact communication.
Patent Information
- Application Number
- CN202511133264.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-13
- Publication Date
- 2025-12-23
AI Technical Summary
Existing digital communication encryption methods are easily cracked in high-computing environments, and data storage at the software level is vulnerable to attack and leakage, resulting in insufficient communication security.
An encryption method based on a vertical stacked structure dual-color LED is adopted, which encodes digital information into spectral information and uses a neural network for decoding. Encryption and decryption are performed by embedding signal modulation and demodulation links, and security is improved by combining AES and SHA algorithms.
Encryption and decryption using optical properties significantly improve communication security, reduce the hardware and software costs of cracking, and ensure the integrity and availability of information.
Smart Images
Figure CN121193453A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of digital communication, in particular to an encryption method and system based on a vertical stacked structure double-color LED. BACKGROUND
[0002] A modern digital communication system is a complex process involving multiple steps such as digital encoding, analog-to-digital conversion, signal modulation, channel transmission, signal demodulation, etc. First, in the digital encoding stage, information such as text, images and audio is converted into digital format. Then, in the analog-to-digital conversion (ADC) stage, analog signals are sampled, quantized and encoded into binary code. Then, in the signal modulation stage, techniques such as amplitude modulation (AM), frequency modulation (FM), phase modulation (PM) or quadrature amplitude modulation (QAM) are used to convert digital signals into a form suitable for transmission in the channel. In the channel transmission stage, information is transmitted through wired or wireless means in physical media, which may include copper wire, optical fiber, radio wave, microwave, etc. and storage media such as hard disk and solid state disk. In the signal demodulation stage, the received modulated signal is converted back to the original digital signal and synchronized to ensure correct processing of the signal from the sending end. Subsequent digital signal processing includes steps such as filtering, error detection and correction, and data recovery to ensure the accuracy of the information.
[0003] Among them, the demand for information security is growing. Common encryption methods usually perform digital encryption at the digital encoding stage, i.e. at the software level, such as symmetric encryption AES\SHA, asymmetric encryption: RSA / ECC / DSA, and divergent encryption: SHA family, etc. However, in the era of high computing power, these encryption algorithms are easily cracked by traversal. In addition, software-level data information is usually stored in Internet databases or local area network databases, which is easy to be attacked and leaked. SUMMARY
[0004] To achieve the above purpose, in the first aspect of the present application, an encryption method based on a vertical stacked structure double-color LED is provided, which comprises the following steps:
[0005] Encoding the original digital information to generate encoded information;
[0006] Loading the encoded information to the double-color LED to convert the encoded information to spectral information through the double-color LED;
[0007] Decrypting the spectral information to convert it to digital information;
[0008] Decoding the digital information using a neural network and proofreading the decoded information. If the proofreading is correct, the original text is decrypted and output to the receiving end. If not, the decoding is restarted.
[0009] By the technical scheme, the encryption / decryption process is embedded into the signal modulation and demodulation link, and encryption and decryption are performed by using optical characteristics, so that the security of communication is significantly improved, and the encryption vulnerability and data storage risk of the prior art in a high computing power environment are overcome.
[0010] Specifically, before the coded information is loaded to the dual-color LED, the following steps are further included:
[0011] The original digital information is encrypted by using AES to generate ciphertext, and the ciphertext is generated into a digest via SHA change;
[0012] The ciphertext is combined with the digest and coded into a current amplitude.
[0013] Specifically, before the digital information is decoded by using the neural network, the following steps are further included:
[0014] The neural network model is constructed, and the neural network model is composed of an MLP and a Transformer model, and the neural network model includes an input layer, a hidden layer and an output layer; the input layer is used to accept digital information; the hidden layer is used to extract and convert the data input by the input layer, and the output layer is used to output corresponding information according to the processing result of the hidden layer.
[0015] By adopting the neural network model fused by the MLP and the Transformer model, the MLP branch adopts a multi-layer perceptron structure (Linear-ReLU-Linear-ReLU), which can efficiently capture the simple linear and nonlinear relationships between structured and numerical features, has high calculation efficiency and small parameter quantity, and is suitable for local feature combination expression.
[0016] Specifically, decoding the digital information by using the neural network further includes the following steps:
[0017] The digital information is preprocessed by using maximum value normalization to obtain one-dimensional spectral features of maximum value normalization, and the specific steps are as follows:
[0018]
[0019] Wherein, Y i is each input feature in the group after normalization processing, X i is each input feature in the group, and X max is the maximum input optical power in each group.
[0020] The one-dimensional spectral features of maximum value normalization are divided into two data according to the optical power, and are respectively input into the MLP and the Transformer model for processing.
[0021] Specifically, the maximum normalized one-dimensional spectral features are divided into two data according to the optical power, and are respectively input into the MLP and the Transformer model for processing, including the following steps:
[0022] The maximum normalized one-dimensional spectral features are divided into blue light LED features and green light LED features, the blue light LED features are composed of the maximum normalized one-dimensional spectral features with the optical power in the interval of 400nm-500nm and 600nm-700nm, and the green light LED features are composed of the maximum normalized one-dimensional spectral features with the optical power in the interval of 500nm-600nm.
[0023] The blue light LED features are input into the Transformer model, and the green light LED features are input into the MLP model.
[0024] The processed blue light LED features and green light LED model are fused in the full connection layer to output the encoding result.
[0025] In the second aspect of the present application, an encryption system based on a vertical stack structure double-color LED is proposed to execute the above method, including: a double-color LED chip module, a spectrum sensor module, a decoding module and an accelerator module,
[0026] The double-color LED chip module is configured to encode the original digital information to generate encoding information, and convert the encoding information into spectrum information.
[0027] The spectrum sensor module is configured to collect LED spectrum data, and convert the LED spectrum data into digital information.
[0028] The decoding module is configured to decode and correct the digital information.
[0029] The accelerator module is configured to schedule the encryption and decryption process.
[0030] Specifically, the double-color LED chip module includes: an encoding unit, a double-color LED chip and a PAM current modulation unit; the encoding unit is configured to encode the original digital information into current amplitude; the PAM current modulation unit is configured to perform PAM current modulation on the double-color LED chip according to the current amplitude; and the double-color LED chip is configured to store the current amplitude as spectrum information according to the PAM current modulation.
[0031] Specifically, the double-color LED chip includes: a GaN-based blue-green double-color stack mini-LED and a BGR LED which can independently tune blue light and green light emission.
[0032] In the technical scheme, the main body of the hoop comprises a vertical part and an arc-shaped part, the vertical part passes through the mounting hole and is locked by the locking piece, thereby ensuring reliable connection between the hoop and the base.
[0033] Specifically, the spectral sensor module comprises AS72651, AS72652 and AS72653 chips; the AS72651 chip is configured to collect spectral data in a wavelength range of 600-870 nm; the AS72652 chip is configured to collect spectral data in a wavelength range of 560-940 nm; and the AS72653 chip is configured to collect spectral data in a wavelength range of 410-535 nm.
[0034] Specifically, the accelerator module comprises an asynchronous processing unit, an algorithm control unit, an algorithm register unit and an algorithm core unit; the asynchronous processing unit is configured to realize cross-clock domain processing of an external bus and an internal bus; the algorithm register unit comprises a state register and a data buffer; the algorithm control module is configured to monitor and schedule the operation process of the algorithm core unit; and the algorithm core unit is configured to realize the calculation process of algorithm hardware acceleration.
[0035] Compared with the prior art, the application has the advantages that:
[0036] The communication system in the form of electro-optical-electric signal conversion of the electrochromic material converts digital signals into spectral information through the electrochromic material, converts the spectral information into digital signals at the receiving end through the three-in-one spectral sensor, hides a large amount of secret information by using the multi-band characteristics of the spectrum, realizes transmission of a high-coding-dimension digital communication protocol, and meets the demand of large-capacity information hiding.
[0037] In addition, using spectral information as a transmission medium can also improve the confidentiality of the communication system and increase the software and hardware cost of cracking.
[0038] Since the information is hidden in multiple bands of the hyperspectral image and a complex embedding algorithm is used, the information transmission security is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0039] The accompanying drawings are included to provide a further understanding of embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain principles of the present application. Other embodiments and many of the intended advantages of the present application will be readily appreciated as the same becomes better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.
[0040] Figure 1 is a flow chart of an encryption method based on a double-color LED of a vertical stack structure according to one embodiment of the present application;
[0041] Figure 2 is a structural schematic diagram of an encryption system based on a double-color LED of a vertical stack structure according to one embodiment of the present application;
[0042] Figure 3 is a structural schematic diagram of a double-color LED in an encryption system based on a double-color LED of a vertical stack structure according to one embodiment of the present application;
[0043] Figure 4 is a flow chart of a neural network model in an encryption method based on a double-color LED of a vertical stack structure according to one embodiment of the present application;
[0044] Figure 5 is a performance test result schematic diagram of a neural network model in an encryption method based on a double-color LED of a vertical stack structure according to one embodiment of the present application;
[0045] Figure 6 is a structural schematic diagram of an accelerator module in an encryption system based on a double-color LED of a vertical stack structure according to an embodiment of the present application;
[0046] Figure 7 is a current spectrum encoding schematic diagram of a BG LED chip in an encryption system based on a double-color LED of a vertical stack structure according to one embodiment of the present application;
[0047] Figure 8 is a current spectrum encoding schematic diagram of a BGR LED chip in an encryption system based on a double-color LED of a vertical stack structure according to one embodiment of the present application.
[0048] Meaning of each number in the figure: 1, n-pole (blue light LED); 2, adhesive layer; 3, p-electrode (green light LED); 4, p-electrode (blue light LED); 5, blue light LED; 6, green light LED; 7, n-electrode (green light LED); 8, GaN substrate; 9, sapphire substrate. DETAILED DESCRIPTION
[0049] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration illustrative embodiments in which the application can be practiced. For purposes of explanation and illustration, directional terms are used with reference to the orientation of the described figures. However, it is to be understood that the embodiments can be practiced in other orientations than those presented in the figures. The directional terms, such as "top," "bottom," "left," "right," "upper," "lower," and the like are used to aid in describing the embodiments and are not to be construed as limiting. It is to be understood that other embodiments can be utilized and structural or logical changes can be made without departing from the scope of the present application. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present application is defined by the appended claims.
[0050] The present application designs an electro-optical-electric communication method for transmitting in the form of digital signal-optical signal-digital signal, which comprises the following steps:
[0051] Encoding the original digital information to generate encoded information;
[0052] Loading the encoded information to the dual-color LED to convert the encoded information to spectral information by the dual-color LED;
[0053] Decrypting the spectral information to digital information;
[0054] Decoding the digital information by using neural network, and proofreading the decoded information, if correct, decrypting to generate the original text and outputting to the receiving end, if not, re-decoding.
[0055] As shown in the embodiment, the original digital information is encrypted by AES to generate ciphertext, and then changed by SHA to generate digest, the ciphertext and the digest are combined and encoded as current amplitude, the dual-color LED is PAM current modulated by the serially connected program-controlled constant current source circuit board according to the aforementioned generated current amplitude, and the current amplitude is converted to spectral information by the double-layer electrochromic material; Figure 1 The spectral information is converted to digital information at the decryption end, and then decoded by using neural network, so as to realize physical encryption at the signal modulation and demodulation end, the ciphertext and the digest are decoded by using neural network, and then the ciphertext and the digest are checked by SHA, if correct, the ciphertext is decrypted by AES to generate the original digital information, if incorrect, it indicates that the neural network decoding is incorrect, and needs to be re-decoded.
[0056] Specifically, before loading the encoded information to the dual-color LED, the following steps are further included:
[0057] The original digital information is encrypted by AES to generate ciphertext, and then changed by SHA to generate digest;
[0058]
[0059] The ciphertext is combined with the digest and encoded into the current amplitude.
[0060] Specifically, before using neural networks to decode digital information, the following steps are also included:
[0061] A neural network model is constructed, which consists of an MLP and a Transformer model. The neural network model includes an input layer, a hidden layer, and an output layer. The input layer is used to receive digital information; the hidden layer is used to extract and transform features from the data input to the input layer; and the output layer is used to output corresponding information based on the processing results of the hidden layer.
[0062] Furthermore, after constructing the neural network model, it needs to be trained using data, such as... Figure 5 As shown, in this embodiment, the model is trained using encoded spectral datasets of blue-green LEDs at 300K temperature and blue-green LEDs covered with a phosphor film. The input features of the dataset are 301 one-dimensional spectral data points, corresponding to absolute optical power in the 400nm-700nm range. The dataset labels correspond to pre-coded spectral data under different combinations of blue-green LED currents. The training set contains encoded spectral data of blue-green LEDs at 300K-350K temperature and blue-green LEDs covered with a phosphor film. The test results on the test set show that the model has a very high accuracy.
[0063] Specifically, decoding digital information using neural networks also includes the following steps:
[0064] The digital information is preprocessed using maximum normalization to obtain the maximum normalized one-dimensional spectral features, as follows:
[0065]
[0066] Among them, Y i For each input feature in the group after normalization, X i For each input feature in the group, X max This represents the maximum input optical power in each group.
[0067] The one-dimensional spectral features with normalized maximum values are divided into two data streams based on optical power, and then input into the MLP and Transformer models for processing, respectively.
[0068] like Figure 4 As shown, in this embodiment, the one-dimensional spectral features with normalized maximum values are divided into two data streams based on optical power, and then input into the MLP and Transformer models respectively for processing, including the following steps:
[0069] The maximum normalized one-dimensional spectral feature is divided into a blue light LED feature and a green light LED feature, the blue light LED feature is composed of the maximum normalized one-dimensional spectral feature with a light power in the interval of 400nm-500nm and 600nm-700nm, and the green light LED feature is composed of the maximum normalized one-dimensional spectral feature with a light power in the interval of 500nm-600nm;
[0070] The blue light LED feature is input into a Transformer model, and the green light LED feature is input into an MLP model;
[0071] The processed blue light LED feature and green light LED model are fused in a full connection layer to output an encoding result.
[0072] In a specific embodiment, the input digital information is a set of one-dimensional data, the input feature length is 301 dimensions, corresponding to the absolute value of the light power in the interval of 400nm-700nm, and the 301-dimensional feature data is divided into two groups, the first group is 101 middle feature data, and the second group is 101 front and rear feature data, and the first group is processed by an MLP, and the second group is processed by a Transformer.
[0073] In the technical scheme, the first 100 dimensions and the last 100 dimensions are input into a Transformer branch to capture long-distance wavelength correlation, the middle 101 dimensions are input into an MLP branch to capture local nonlinear features, the two feature data are spliced and output by a linear classifier to output discrete LED encoding categories, and high-robust and high-accuracy spectrum code word recognition is realized.
[0074] In addition, the application also proposes an encryption system based on a vertical stacked structure double-color LED, comprising: a double-color LED chip module, a spectrum sensor module, a decoding module, and an accelerator module,
[0075] The double-color LED chip module is configured to encode original digital information to generate encoding information, and convert the encoding information into spectrum information;
[0076] The spectrum sensor module is configured to collect LED spectrum data, and convert the LED spectrum data into digital information;
[0077] The decoding module is configured to decode and correct the digital information;
[0078] The accelerator module is configured to schedule the encryption and decryption process.
[0079] As shown in Figure 2 In this embodiment, it includes: an upper computer MCU, a bus BUS, a spectrum sensor AS7265X, an accelerator AES / SHA, a TPU, and a double-color LED chip (not shown in Figure 2 ).
[0080] Preferably, the optical spectrum sensor module comprises: AS72651, AS72652 and AS72653 chips; the AS72651 chip is configured to collect spectrum data in the wavelength range of 600-870nm; the AS72652 chip is configured to collect spectrum data in the wavelength range of 560-940nm; and the AS72653 chip is configured to collect spectrum data in the wavelength range of 410-535nm.
[0081] In one specific embodiment, the AS7265X three-in-one spectrum sensor is used to collect LED spectrum data, and the collected data is in the wavelength range of 400-700nm; wherein the AS7265X three-in-one spectrum sensor is a high-integration multi-spectrum sensor chip set composed of AS72651, AS72652 and AS72653 three chips, which provides 18 optical channels (wavelength range 410-940nm, half-peak full width 20nm) and covers the visible light to near-infrared band; wherein the AS72651 controls the near-infrared (600-870nm), the AS72652 covers 560-940nm, and the AS72653 covers 410-535nm. The chip set directly integrates nanometer optical deposition interference filters on the CMOS silicon wafer, is calibrated out of the factory, ensures uniform power density in the whole wavelength band, and each chip has two built-in programmable LED drives (supports electronic shutter), which can illuminate the sample without external drive, and is equipped with a low-power MCU for on-chip signal processing, which significantly reduces the hardware cost, and supports I 2 C (default address 0x49) and UA RT, which facilitates connection with Arduino, STM32 and other controllers.
[0082] Specifically, the accelerator module is an AES / SHA hardware accelerator, as shown in Figure 6 The top module is responsible for interacting with external buses / registers and scheduling encryption and decryption processes. The top module mainly includes an asynchronous processing module BUS_ASYNC of the bus SLAVE, algorithm control modules AES_CTRL / SHA_CTRL, algorithm register groups AES_REG / SHA_REG, and algorithm cores AES_CORE / SHA_CORE.
[0083] The BUS_ASYNC module is mainly responsible for cross-clock domain processing of external buses and internal buses, and converts asynchronous data on the bus into synchronous data inside the module.
[0084] The algorithm register group AES_REG / SHA_REG mainly includes state registers of internal modules and data buffer, and the external bus accesses the AES_REG / SHA_REG through the BUS_ASYNC module to read and write, thereby controlling the working state of the hardware acceleration IP, writing data, reading result data and the like.
[0085] The algorithm control module AES_CTRL / SHA_CTRL is responsible for monitoring the operation process of the core to schedule the entire algorithm core and ensuring the normal operation of the hardware accelerator.
[0086] The algorithm core AES_CTRL / SHA_CTRL is responsible for implementing the calculation process of the algorithm hardware acceleration.
[0087] In addition, the TX_FIFO and the RX_FIFO are responsible for buffering the data of the bus burst transmission and relieving the data blocking condition.
[0088] By integrating the TX / RXFIFO, the cross-clock domain BUS_ASYNC interface, the state and data register group AES_REG / SHA_REG, the algorithm control module AES_CTRL / SHA_CTRL and the pipeline AES_CORE and SHA_CORE on the chip, burst DMA is supported, and high-throughput and low-delay hardware acceleration of 128-bit AES packet encryption and 160-bit SHA hash operation is implemented.
[0089] Preferably, the dual-color LED chip module comprises: an encoding unit, a dual-color LED chip, and a PAM current modulation unit; the encoding unit is configured to encode original digital information into a current amplitude; the PAM current modulation unit is configured to perform PAM current modulation on the dual-color LED chip according to the current amplitude; and the dual-color LED chip is configured to store the current amplitude as spectral information according to the PAM current modulation.
[0090] Specifically, the dual-color LED chip comprises: a GaN-based blue-green dual-color stacked mini-LED capable of independently tuning blue light and green light emission and a BGR LED.
[0091] As shown in FIG. 1, Figure 3 As shown in FIG. 1, a GaN-based blue-green dual-color stacked mini-LED capable of independently tuning blue light and green light emission is shown in the figure, and the LED adopts a vertical stacked structure; the blue light LED and the green light LED are vertically integrated on the same GaN-based epitaxial wafer, and a current isolation layer is arranged between the two layers of active regions, so that the blue light and the green light can be independently addressed and independently amplitude-modulated; the chip surface can be further covered with a phosphor film to simultaneously output BGR three-color spectra, thereby mapping the PAM current amplitude to a high-dimensional spectral code word to realize a physical layer encryption dictionary.
[0092] When the green LED emits light, as the injected current increases, a large number of free carriers are generated in the quantum well region, which to some extent shields the built-in electric field, limits the quantum confinement Stark effect, and causes a significant blue shift in the spectrum. In addition, when the temperature rises, the lattice structure of the GaN-based LED oscillates violently, and band contraction occurs, causing the entire spectrum to red shift.
[0093] In addition to the BG LED shown in this embodiment, a BGR LED can also be used, that is, a layer of fluorescent powder film is coated on the basis of the BG LED, and part of the blue light is converted into red light.
[0094] Figure 7 The current spectrum encoding diagram of the BG LED, the dual-color LED chip in this embodiment is composed of a GaN-based blue-green dual-color stack mini-LED that can independently tune blue and green light emission. For the blue-green dual-color stack LED, when the blue LED emits light, due to the lower band gap of the green LED epitaxial layer, photoluminescence effect will be produced, and a green band sub-peak will be attached to the spectrum diagram.
[0095] Figure 8 is a current spectrum encoding diagram of a BGR LED chip in an encryption system based on a vertical stack structure dual-color LED according to an embodiment of the present application, and Figure 7 Compared with the spectrum of the BG LED, the green and blue light in the wavelength range of 600-650 nm is reduced.
[0096] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and changes are within the scope of the claims of the present application and their equivalents, the present application also aims to cover these modifications and changes. The word "comprises" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not mean that the combination of these measures cannot be used to advantage. Any reference signs in the claims should not be considered as limiting the scope.
Claims
1. An encryption method based on a vertically stacked dual-color LED structure, characterized in that, The method includes the following steps: Encode the raw digital information to generate encoded information; The encoded information is loaded into a dual-color LED so that the encoded information is converted into spectral information by the dual-color LED; The spectral information is decrypted and converted into digital information; The digital information is decoded using a neural network, and the decoded information is checked. If the check is correct, the original text is decrypted and output to the receiving end; otherwise, it is decoded again.
2. The encryption method based on a vertically stacked dual-color LED according to claim 1, characterized in that, Before loading the encoded information into the dual-color LED, the following steps are also included: The original digital information is encrypted using AES to generate ciphertext, and the ciphertext is then digested using SHA transformation. The ciphertext is combined with the digest and encoded as the current amplitude.
3. The encryption method based on a vertically stacked dual-color LED according to claim 2, characterized in that, Before decoding the digital information using a neural network, the following steps are also included: A neural network model is constructed, which consists of an MLP and a Transformer model. The neural network model includes an input layer, a hidden layer, and an output layer. The input layer is used to receive the digital information. The hidden layer is used to extract and transform features from the data input to the input layer. The output layer is used to output corresponding information based on the processing results of the hidden layer.
4. The encryption method based on a vertically stacked dual-color LED according to claim 3, characterized in that, Decoding the digital information using a neural network further includes the following steps: The digital information is preprocessed using maximum value normalization to obtain the maximum value normalized one-dimensional spectral features, as follows: Among them, Y i For each input feature in the group after normalization, X i For each input feature in the group, X max This represents the maximum input optical power in each group. The one-dimensional spectral features normalized to the maximum value are divided into two data streams based on optical power, and then input into the MLP and Transformer models respectively for processing.
5. The encryption method based on a vertically stacked dual-color LED according to claim 4, characterized in that, The process of dividing the one-dimensional spectral features, which are normalized to their maximum values, into two data streams based on optical power, and inputting them into the MLP and Transformer models respectively for processing, includes the following steps: The one-dimensional spectral features with normalized maximum values are divided into blue LED features and green LED features. The blue LED features are composed of the one-dimensional spectral features with normalized maximum values in the ranges of 400nm to 500nm and 600nm to 700nm with optical power. The green LED features are composed of the one-dimensional spectral features with normalized maximum values in the range of 500nm to 600nm with optical power. The features of the blue LED are input into the Transformer model, and the features of the green LED are input into the MLP model; The processed blue LED features and the green LED model are fused in a fully connected layer to output the encoding result.
6. An encryption system based on a vertically stacked dual-color LED structure, for executing an encryption method based on a vertically stacked dual-color LED structure as described in any one of claims 1 to 5, comprising: The dual-color LED chip module, spectral sensor module, decoding module, and accelerator module are characterized in that, The dual-color LED chip module is configured to encode the original digital information to generate encoded information, and convert the encoded information into spectral information; The spectral sensor module is configured to acquire LED spectral data and convert the LED spectral data into digital information. The decoding module is configured to decode and verify the digital information; The accelerator module is configured to schedule encryption and decryption processes.
7. The encryption system based on a vertically stacked dual-color LED structure according to claim 6, characterized in that, The dual-color LED chip module includes: an encoding unit, a dual-color LED chip, and a PAM current modulation unit; the encoding unit is configured to encode the original digital information into a current amplitude; the PAM current modulation unit is configured to perform PAM current modulation on the dual-color LED chip according to the current amplitude; the dual-color LED chip is configured to store the current amplitude as spectral information according to the PAM current modulation.
8. The encryption system based on a vertically stacked dual-color LED structure according to claim 7, characterized in that, The dual-color LED chip includes: GaN-based blue-green dual-color stacked mini-LED and BGRLED, which can be tuned to emit blue and green light independently.
9. An encryption system based on a vertically stacked dual-color LED structure according to claim 6, characterized in that, The spectral sensor module includes AS72651, AS72652, and AS72653 chips; the AS72651 chip is configured to acquire spectral data in the wavelength range of 600–870 nm; the AS72652 chip is configured to acquire spectral data in the wavelength range of 560–940 nm; and the AS72653 chip is configured to acquire spectral data in the wavelength range of 410–535 nm.
10. An encryption system based on a vertically stacked dual-color LED structure according to claim 6, characterized in that, The accelerator module includes: an asynchronous processing unit, an algorithm control unit, an algorithm register unit, and an algorithm core unit; the asynchronous processing unit is configured to implement cross-clock domain processing between the external bus and the internal bus; the algorithm register unit includes a status register and a data buffer; the algorithm control unit is configured to monitor and schedule the computation process of the algorithm core unit; the algorithm core unit is configured to implement the computation process of hardware-accelerated algorithm.