A method for encrypted information transmission using single molecule device characteristics

Abstract

The application discloses a method for encrypted information transmission by using single-molecule device characteristics, and belongs to the field of information encryption. The steps include: a publisher transmits a decryption condition to a receiver; the publisher sends a device recording encrypted information to the receiver; the receiver applies voltage to electrode points according to voltage values by relying on the decryption condition, and performs Raman spectrum detection on the device; Raman spectrum detection results of multiple electrode points are read according to a reading sequence; the Raman spectrum detection results are processed according to a yes-or-no judgment rule to obtain a reading result; and a corresponding relationship is substituted into the reading result to obtain the encrypted information. The encrypted information is protected by multiple encryption methods such as voltage values applied to the electrode points, the reading sequence of the Raman spectrum detection results and the yes-or-no judgment rule, so that even if a third party intercepts the device and has Raman spectrum detection capability, it is still difficult to decipher.

Description

Technical Field

[0001] This invention relates to a method for transmitting encrypted information using the characteristics of single-molecule devices, belonging to the field of information encryption. Background Technology

[0002] With the advent of the information age, information security issues have become increasingly prominent. Information leaks can damage the privacy of individuals and businesses, and may seriously threaten trade secrets and security. Therefore, the encryption protection of important information has become an urgent need. Common information encryption technologies either rely on encrypting electronic signals or encrypting existing information using algorithms. As information technology has developed, these technologies have become widely known and relatively easy to crack. Therefore, it is necessary to continuously update and enrich encryption methods to meet people's higher requirements for information encryption technology. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a method for transmitting encrypted information using the characteristics of single-molecule devices, thereby enriching encryption methods with novel encryption techniques.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A method for transmitting encrypted information using the characteristics of single-molecule devices, comprising the following steps:

[0006] The publisher passes the decryption conditions to the receiver;

[0007] The publisher sends a device containing encrypted information to the receiver;

[0008] The device has multiple electrode points distributed on it, and each electrode point has only a monolayer formed by a single molecule material. The device has more than one single molecule material, and the Raman spectrum of at least one single molecule material changes after applying voltage compared to before applying voltage.

[0009] The decryption conditions include: the voltage value to be applied to the electrode point, the reading order of the Raman spectral detection results of multiple electrode points, the yes / no judgment rule for the Raman spectral detection results, and the correspondence between the yes / no judgment rule and logical variables.

[0010] The receiver applies a voltage to the electrode point according to the voltage value and performs Raman spectroscopy detection on the device. The receiver reads the Raman spectroscopy detection results of multiple electrode points in the reading order, processes the Raman spectroscopy detection results according to the yes / no judgment rule, and obtains the reading result. The receiver substitutes the correspondence into the reading result to obtain the encrypted information.

[0011] This application utilizes the characteristic that the Raman spectra of some single-molecule materials differ under different voltages, distinguishing it from traditional electronic signal encryption or algorithm encryption, and opening up a completely new encryption approach, increasing the difficulty of cracking. Multiple decryption conditions, such as voltage value and reading order, form a multi-layered encryption system. The voltage value determines the basis of the Raman spectral changes of single-molecule materials; different voltage values ​​will cause single-molecule materials to exhibit different spectral states. The reading order further disrupts the ordered information; even if an attacker obtains some spectral information, they cannot obtain the correct encrypted information if they do not know the correct reading order of the electrode points. The yes / no judgment rules and the correspondence with logical variables are key steps in converting spectral information into general language. The multiple decryption conditions work together; only by strictly following the set rules can decryption be successful, greatly enhancing the confidentiality of the encrypted information.

[0012] Furthermore, the Raman spectral peak position of at least one of the single-molecule materials changes with increasing voltage after being energized.

[0013] The publisher can formulate more complex rules for determining whether an encrypted message is correct based on the specific details of peak position changes, such as the magnitude and direction of peak position shifts. These rules, combined with decryption conditions such as reading order and logical variable correspondences, make encrypted information much harder to crack. This is because attackers not only need to obtain spectral information but also need to accurately grasp the specific rules for determining peak position changes and the overall decryption process, significantly increasing the difficulty of decryption.

[0014] Furthermore, the yes / no judgment rule is whether the Raman spectrum detection result of the electrode point contains a specified Raman spectrum peak (whether the Raman spectrum detection result of the electrode point to which voltage has been applied contains a specified Raman spectrum peak).

[0015] By leveraging the characteristic that peak positions of some single-molecule materials change with increasing voltage, publishers can dynamically adjust specified peak positions and voltage values ​​to further increase the complexity of encryption. For example, in different encryption cycles or for different encrypted messages, different peak positions can be selected as specified peak positions based on the voltage to be applied, making it difficult for third-party attackers to crack the encryption rules through long-term monitoring and analysis.

[0016] Furthermore, in the yes / no judgment rule, there are multiple specified peak positions in the Raman spectrum, and each electrode point corresponds to only one specified peak position in the Raman spectrum.

[0017] The inclusion of multiple designated peak positions significantly increases the difficulty for attackers to crack the encryption. Attackers not only need to obtain the spectral information of all electrode points, but also accurately identify the designated peak position corresponding to each electrode point and the corresponding judgment rules, greatly increasing the workload and technical difficulty of cracking. Furthermore, the combination of the reading order and the setting of different designated peak positions for different electrode points makes the encrypted information more covert during transmission. Even if an attacker intercepts part of the spectral information, they will find it difficult to piece together the complete encrypted information because they do not know the correspondence between peak positions and electrode points, nor the correct reading order. At the same time, this setting also allows for the diversification of encrypted information; the publisher can flexibly adjust the designated peak position corresponding to each electrode point to achieve different levels of encryption strength.

[0018] Furthermore, the yes / no judgment rule is whether increasing the voltage after energizing the electrode point will cause a change in the Raman spectrum peak position.

[0019] The publisher can leverage this rule, combined with the differences in peak position changes of different single-molecule materials under different voltages, to formulate more complex encryption strategies. When decrypting, the receiver needs to control the magnitude of the voltage increase and observe the peak position changes, making judgments according to the established rules. This rule increases the dynamism and complexity of the encrypted information, making it more difficult for attackers to crack it through simple spectral analysis. By continuously increasing the voltage at different electrode points based on different initial voltage values ​​and observing the peak position changes, multi-layered encryption conditions are formed. It can even be implemented by first determining whether a specified peak position exists, and then determining whether the peak position changes after increasing the voltage, further improving the confidentiality and resistance to cracking of the encrypted information.

[0020] Furthermore, the peak signal intensity of the Raman spectrum of at least one of the single-molecule materials increases with increasing voltage after energization.

[0021] Furthermore, the yes / no judgment rule is whether increasing the voltage after energizing the electrode point will enhance the peak signal intensity of the Raman spectrum.

[0022] When the receiver applies voltage to the electrode points and performs Raman spectroscopy, in addition to paying attention to factors such as peak position changes, they also need to observe changes in peak signal intensity. This multi-factor judgment method increases the complexity and confidentiality of encrypted information. For an attacker to crack the encrypted information, they need to simultaneously analyze the changing patterns of multiple factors, including peak position and peak signal intensity at that peak, and accurately grasp the specific judgment criteria for each electrode point. This greatly enhances the confidentiality of the encrypted information.

[0023] Furthermore, the surface of the device is provided with an adhesive sealant.

[0024] Encapsulation prevents external environmental factors from damaging the monolayer on the device. For example, it avoids chemical reactions between impurities and moisture in the air and the monolayer material, which could affect its Raman spectral characteristics. This ensures the accuracy and stability of the encrypted information, resulting in more accurate Raman spectral detection results obtained by the receiver.

[0025] Furthermore, the decryption conditions also include detection depth; the step of performing Raman spectroscopy detection on the device includes: using a confocal Raman spectrometer, performing Raman spectroscopy detection on the device according to the detection depth.

[0026] The encapsulation not only serves a protective function but can also be regarded as a layer of encryption. The encapsulation affects the Raman spectrum of the device surface, making it impossible for a third party to obtain the true spectral information of the monolayer when directly performing Raman spectroscopy on the device. Instead, the detection depth needs to be determined. Only by detecting the depth of the monolayer under the encapsulation using a confocal Raman spectrometer can the true spectral information be obtained.

[0027] Furthermore, in the decryption conditions, there are multiple voltage values, and the voltage values ​​required to be applied to some of the electrode points are different from those of other electrode points.

[0028] Different electrode points require different voltage values, making the setting of encryption information more flexible and diverse. The publisher can set a unique voltage value for each electrode point according to the characteristics of the single-molecule material and the encryption requirements. In this way, during the decryption process, the receiver needs to know the corresponding voltage value for each electrode point accurately and apply it correctly in order for the single-molecule material to exhibit the expected Raman spectral changes.

[0029] The beneficial effects of this invention are as follows: The method of transmitting encrypted information using the characteristics of single-molecule devices relies on multiple encryption methods to protect the encrypted information, such as the voltage applied to the electrode points, the reading order of Raman spectroscopy detection results, and the yes / no judgment rules. Even if a third party intercepts the device and has Raman spectroscopy detection capabilities, it is still difficult to decipher the information. This invention constructs a new encryption method around some single-molecule materials whose Raman spectra change after applying voltage, enriching encryption methods and helping to meet people's higher requirements for information encryption technology.

[0030] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0031] Figure 1 This is one of the electrode point distribution diagrams on a substrate provided in the embodiments of this application.

[0032] Figure 2 This is a second electrode point distribution diagram on a substrate provided in the embodiments of this application.

[0033] Figure 3 This is a distribution diagram of the single-molecule material on the array electrode points in the implementation case.

[0034] Figure 4 This is a distribution diagram of the specified Raman spectral peaks corresponding to each electrode point in the implementation case.

[0035] Figure 5 It is a distribution diagram of logical variables decrypted in the implementation case.

[0036] Figure 6 These are the Raman spectra of the single-molecule material Anylp1 at different voltages.

[0037] Figure 7 These are the Raman spectra of the single-molecule material 2SAc-BP-1 under different voltages.

[0038] Figure 8 These are the Raman spectra of the single-molecule material SCF3 at different voltages.

[0039] Reference numerals: 99, substrate; 98, electrode; 989, electrode point; 988, pin. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure are described clearly and completely below. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this invention.

[0041] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention.

[0042] It should be understood that, without conflict, any and all embodiments of the present invention can be combined with technical features of any other embodiment or multiple other embodiments to obtain other embodiments. The present invention includes such combinations to obtain other embodiments.

[0043] This application provides a method for transmitting encrypted information using the characteristics of single-molecule devices. Including device fabrication, the steps include:

[0044] S0: The publisher creates a device that records encrypted information. The device has multiple electrode points, each electrode point has only a monolayer formed by a single molecule material, and the device has more than one (e.g., three, four, etc.) single molecule materials. The Raman spectrum of at least one single molecule material changes after voltage is applied compared to before voltage is applied.

[0045] S1: The publisher transmits the decryption conditions to the receiver. The decryption conditions include: the voltage value to be applied to the electrode point, the reading order of the Raman spectral detection results of multiple electrode points, the yes / no judgment rules for the Raman spectral detection results, and the correspondence between the yes / no judgment rules and logical variables.

[0046] S2: The publisher sends a device containing encrypted information to the receiver.

[0047] S3: The receiver applies voltage to the electrode points according to the voltage value and performs Raman spectroscopy detection on the device. The Raman spectroscopy detection results of multiple electrode points are read in the reading order. The Raman spectroscopy detection results are processed according to the yes / no judgment rule to obtain the reading result. The corresponding relationship is substituted into the reading result to obtain the encrypted information.

[0048] The voltage value includes 0V, meaning whether the device is powered on or not is also a decryption condition. The means of transmission in step S1 include, for example, in-person notification or sending a message.

[0049] Step S0, for example, firstly, the substrate material is cleaned. The substrate material can be glass, preferably quartz, which is pure and has few impurities, minimizing interference with the spectral signal. Next, an electrode mask is prepared. The pattern can be arranged in a matrix, and the spacing and number can be customized; more electrodes can carry more information. After the mask is prepared, gold electrodes are fabricated on the substrate using the mask. Each electrode has one or more electrode points. The specific array configuration can be as follows: Figure 1 or Figure 2 As shown, four electrodes 98 are disposed on the substrate 99, each electrode 98 having four electrode points 989 connected in series, and each electrode 98 having two pins 988 for energizing. After the electrodes are fabricated, monolayer growth is performed, with a monolayer grown on each electrode point. The monolayer material of each electrode point can be different, and its Raman spectral peak position is also different. Using different monolayers to arrange can encrypt information on the device.

[0050] For example, in step S3, the sample is placed on the detection platform of the Raman spectroscopy equipment, the device is powered on using pin 988, and then Raman spectroscopy detection is performed. The original information is finally obtained according to the decryption conditions.

[0051] The correspondence between yes / no judgment rules and logical variables is as follows: if the judgment result is "yes", then the logical variable is "1"; if the judgment result is "no", then the logical variable is "0". In this way, the combination of 1 and 0, combined with decryption methods (encoding rules) such as Morse code, can restore the encrypted information.

[0052] Implementation Cases

[0053] A suitable quartz substrate of appropriate size is selected based on the application requirements. In this embodiment, a 30mm x 30mm quartz substrate with a thickness of 2mm is used. A mask of the same size as the quartz substrate is prepared. The mask has specific square regions cut out, consisting of a 4x4 square array, with each square being 4mm in length and width. The prepared mask and quartz substrate are placed in a vapor deposition machine to deposit a gold layer, resulting in a quartz substrate with gold electrodes in the shape of the mask, with the same structure. Figure 1 .

[0054] Prepare 1×10 using high-purity tetrahydrofuran -4 For organic unimolecular solutions with a concentration of mol, four unimolecular materials can be selected. Triethylamine is added to the solution to promote molecular growth. The solutions are then sealed in volumetric flasks for later use. The four unimolecular solutions are named Material 1, Material 2, Material 3, and Material 4 in the order listed. The Raman spectral switching wavenumber (the position of the newly appearing Raman peak after energization) of Material 1 is at 1300 cm⁻¹. -1 Nearby, the spectral switching wavenumber of material 2 is at 1400 cm⁻¹. -1 Nearby, the spectral switching wavenumber of material 3 is around 1500 cm⁻¹. -1 Nearby, the spectral switching wavenumber of material 4 is at 1600 cm⁻¹. -1 nearby.

[0055] Take out the previously prepared quartz substrate and follow the instructions. Figure 3 ( Figure 3 (The diagram shows the preparation of monolayer solutions, with "1", "2", "3", and "4" representing the monolayers of materials 1, 2, 3, and 4, respectively.) The prepared monolayer solution is dropped into each rectangular array, and the substrate is then placed in a tetrahydrofuran atmosphere growth container, sealed, and left to stand overnight at room temperature. The sealed growth container is then opened, the substrate is removed, and the surface is rinsed with tetrahydrofuran solution using a dropper. After rinsing, it is dried with nitrogen gas. Finally, a layer of high-transmittance silicone encapsulant is applied to the entire center surface of the substrate, exposing the pins. The silicone encapsulant has low volatility, high purity, and good chemical stability, minimizing spectral interference and protecting the monolayers.

[0056] In this implementation case, the decryption conditions include:

[0057] Required voltage at each electrode point: The required voltage at each electrode point is greater than 0.

[0058] The reading order for Raman spectroscopy results from multiple electrode points is as follows: read each line from left to right and each line from top to bottom.

[0059] The rules for judging the validity of Raman spectroscopy results are: whether the Raman spectral results of the electrode point contain a specified Raman peak. Specifically, as follows... Figure 4 As shown, the electrode points in the first column are all within 1300cm. -1 Peak position, the electrode points in the second column are all at or without 1400cm -1 Peak position, the electrode points in the third column are all present or absent at 1500cm. -1 Peak position, the electrode points in the fourth column are all at or without 1600cm. -1 Peak position.

[0060] Detection depth is used to determine how thick the sealant layer is to actually detect a single molecule of material.

[0061] The correspondence between the yes / no judgment rules and logical variables: a specified peak position is "1", and no specified peak position is "0".

[0062] After receiving the manufactured device, the receiver connects it to the circuit according to the electrode pin distribution. Upon powering on, a confocal Raman spectrometer is used to perform Raman spectroscopy on the device. The device is then decrypted according to the decryption conditions, yielding the following result: Figure 5 ( Figure 5 The "1" in the text does not represent Material 1, but rather the logical variable "1" as shown. The encrypted information is 0100 1111 0100 1011. According to the ASCII code 8-bit binary representation, the first 8 bits correspond to the letter "o", and the last 8 bits correspond to the letter "k". The decrypted information is "ok".

[0063] As demonstrated in the above examples, the voltage applied to each electrode point can be different (i.e., there are multiple voltage values, and some electrode points require different voltage values ​​than others). The peak positions to be monitored for each electrode point can also be different (i.e., there are multiple specified peak positions in the Raman spectrum, and each electrode point corresponds to only one specified peak position). If, unlike the examples above where all electrode points are energized, some are not energized while others are energized, and this is combined with different monitoring peak positions and different reading sequences, the difficulty of decoding can be greatly increased.

[0064] Other read sequences include reading every other read, or traversing each electrode point using an S-shaped path. The electrode points can also be distributed in triangular, hexagonal, or irregular shapes on the device.

[0065] The Raman spectrum of a single-molecule material after applying voltage changes compared to before applying voltage, including but not limited to the following:

[0066] The first type involves single-molecule materials where the Raman spectral peak positions differ after energizing compared to before energizing.

[0067] The second type involves single-molecule materials where increasing the voltage while the current is already applied will result in different Raman spectral peak positions.

[0068] The third type is that when a single-molecule material is already energized, further increasing the voltage will cause the peak signal intensity of the Raman spectrum to increase with the increase of voltage.

[0069] A typical example of a first-class unimolecular molecule is Anylp1 ("Anylp1" is a name chosen by the inventor for ease of description, not a conventional trade name; the specific structure should be based on the structural formula). The structural formula of Anylp1 is as follows:

[0070]

[0071] Wherein, the -SAc group represents -S-CO-CH3. The Raman spectra of Anylp1 at 0V and 0.6V are shown below. Figure 6 As shown in the figure. It can be seen that after energizing, compared to before energizing, at 1300cm... -1 A new characteristic peak appeared (shown in the black rectangle in the figure).

[0072] A typical example of the second type of unimolecular monomer is 2SAc-BP-1. The structural formula of 2SAC-BP-1 is as follows:

[0073]

[0074] The Raman spectra of 2SAc-BP-1 at voltages of 0.5V, 0.9V, and 1.5V are shown below. Figure 7 As shown, it can be seen that, even when energized, the characteristic peak positions of 2SAc-BP-1 differ under different voltages.

[0075] A typical example of the third type of unimolecular molecules is SCF3. The structural formula of SCF3 is as follows:

[0076]

[0077] The Raman spectra of SCF3 at voltages of 0.1V, 0.2V, 0.5V, 0.7V, 1.0V, and 1.5V are shown below. Figure 8 As shown. In Figure 8 As shown in the red box, 1600cm -1 The peak signal intensity at that point increases with increasing voltage.

[0078] In implementation, two or three of these three types of monolayers can be used in combination. Correspondingly, in the decryption conditions, a specific voltage value is specified for each electrode point, with some voltage values ​​being the same and others different. Specific yes / no rules are defined for each electrode point. For some electrode points, the yes / no rule is whether a specified peak position is present; for others, it's whether increasing the voltage after energizing the electrode point will change the Raman spectrum peak position; and for still others, it's whether increasing the voltage after energizing the electrode point will enhance the Raman spectrum peak signal intensity. This greatly increases the difficulty of decryption and even enables the reuse of monolayers during decoding. That is, a monolayer on the same device, combined with different yes / no rules and voltage values, can translate two different texts.

[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0080] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for transmitting encrypted information using the characteristics of single-molecule devices, characterized in that the steps include... include: The publisher passes the decryption conditions to the receiver; The publisher sends a device containing encrypted information to the receiver; The device has multiple electrode points distributed on it, and each electrode point has only a monolayer formed by a single molecule material. The device has more than one single molecule material, and the Raman spectrum of at least one single molecule material changes after applying voltage compared to before applying voltage. The decryption conditions include: the voltage value to be applied to the electrode point, the reading order of the Raman spectral detection results of multiple electrode points, the yes / no judgment rule for the Raman spectral detection results, and the correspondence between the yes / no judgment rule and logical variables. The receiver applies a voltage to the electrode point according to the voltage value and performs Raman spectroscopy detection on the device. The receiver reads the Raman spectroscopy detection results of multiple electrode points in the reading order, processes the Raman spectroscopy detection results according to the yes / no judgment rule, and obtains the reading result. The receiver substitutes the correspondence into the reading result to obtain the encrypted information.

2. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 1, characterized in that, The Raman spectral peak position of at least one of the single-molecule materials changes with increasing voltage after energization.

3. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 1 or 2, characterized in that, The yes / no judgment rule is whether the Raman spectrum detection result of the electrode point contains a specified peak position in the Raman spectrum.

4. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 3, characterized in that, In the yes / no judgment rule, there are multiple specified peak positions in the Raman spectrum, and each electrode point corresponds to only one specified peak position in the Raman spectrum.

5. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 2, characterized in that, The yes / no judgment rule is whether increasing the voltage after energizing the electrode point will cause a change in the Raman spectrum peak position.

6. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 1, characterized in that, The peak signal intensity of the Raman spectrum of at least one of the single-molecule materials increases with increasing voltage after energization.

7. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 6, characterized in that, The yes / no judgment rule is whether increasing the voltage after energizing the electrode point will enhance the peak signal intensity of the Raman spectrum.

8. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 1, characterized in that, The surface of the device is coated with adhesive.

9. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 8, characterized in that, The decryption conditions also include detection depth; the step of performing Raman spectroscopy detection on the device includes: using a confocal Raman spectrometer to perform Raman spectroscopy detection on the device according to the detection depth.

10. The method for transmitting encrypted information using the characteristics of single-molecule devices according to claim 1, characterized in that, In the decryption conditions, there are multiple voltage values, and the voltage values ​​required to be applied to some of the electrode points are different from those of other electrode points.

Images