Method for transmitting encrypted information by using characteristics of monomolecular device

Abstract

The invention discloses a method for transmitting encrypted information by utilizing the characteristics of a single molecular device, which belongs to the field of information encryption and comprises the following steps that: a publisher transmits a decryption condition to a receiver, the publisher sends a device recorded with the encrypted information to the receiver, the receiver applies voltage to an electrode point according to a voltage value by virtue of the decryption condition, and the encrypted information is transmitted to the receiver. Performing Raman spectrum detection on the device, reading Raman spectrum detection results of the plurality of electrode points according to a reading sequence, and processing the Raman spectrum detection results according to a non-judgment rule to obtain a reading result; and substituting the corresponding relationship into the reading result to obtain encrypted information. Encrypted information is protected by means of multiple encryption such as a voltage value applied to an electrode point, a reading sequence of a Raman spectrum detection result and a non-judgment rule, and even if a third party intercepts a device and has a Raman spectrum detection capability, the encrypted information is still difficult to decode.

Description

TECHNICAL FIELD

[0001] The present application relates to a method for encrypted information transmission using single-molecule device characteristics, and belongs to the field of information encryption. BACKGROUND

[0002] With the advent of the information age, information security problems are increasingly prominent. Information leakage can damage the privacy of individuals and enterprises, and may seriously threaten business secrets and security. Therefore, the encryption protection of important information has become a very urgent need. Common information encryption techniques rely on the encryption of electronic signals, and some use algorithm encryption on original information. With the development of information technology, these techniques have been well known, and thus are relatively easy to crack. Therefore, encryption methods need to be constantly updated and enriched to meet people's higher requirements for information encryption technology. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the present application provides a method for encrypted information transmission using single-molecule device characteristics, which uses a new encryption method to enrich encryption methods.

[0004] The technical solution adopted by the present application to solve its technical problems is: A method for encrypted information transmission using single-molecule device characteristics, comprising the following steps: a publisher transmits decryption conditions to a receiver; the publisher sends a device recording encrypted information to the receiver; a plurality of electrode points are distributed on the device, each electrode point has only a single-molecule layer formed by a single-molecule material, and there are more than one kind of single-molecule material on the device, and at least one kind of single-molecule material has a changed Raman spectrum after applying a voltage; the decryption conditions include: a voltage value required to be applied to the electrode points, a reading order of Raman spectrum detection results of the plurality of electrode points, a yes / no judgment rule of the Raman spectrum detection results, and a correspondence between the yes / no judgment rule and a logic variable; the receiver applies a voltage to the electrode points according to the voltage value, and performs Raman spectrum detection on the device, reads the Raman spectrum detection results of the plurality of electrode points in the reading order, processes the Raman spectrum detection results according to the yes / no judgment rule to obtain a reading result, and substitutes the correspondence into the reading result to obtain the encrypted information.

[0005] The application utilizes the different characteristics of some single-molecule materials in Raman spectrum under different voltages, which is different from traditional electronic signal encryption or algorithm encryption, and opens up a new encryption approach, increasing the difficulty of cracking. For example, voltage value, reading sequence and other decryption conditions form a multi-level encryption system. The voltage value determines the basis of the change of the Raman spectrum of the single-molecule material, and different voltage values will make the single-molecule material present different spectral states; the reading sequence further disrupts the ordered information, so even if the attacker obtains part of the spectral information, if the correct sequence of electrode points is not known, the correct encrypted information cannot be obtained; the correspondence between the is- non-judgment rule and the logic variable is the key step of converting spectral information into general language, and the multi-level decryption conditions cooperate with each other, and only by strictly following the set rules can the encrypted information be correctly decrypted, greatly enhancing the security of the encrypted information.

[0006] Further, the Raman spectrum peak position of at least one of the single-molecule materials after being powered will change with the increase of the voltage.

[0007] The publisher can develop more complex is- non-judgment rules based on the specific circumstances of the peak position change, such as the amplitude and direction of the peak position shift. Such rules, combined with decryption conditions such as reading sequence and logic variable correspondence, make the encrypted information more difficult to crack. Because the attacker not only needs to obtain the spectral information, but also needs to accurately master the specific judgment rules of the peak position change and the overall decryption process, the decryption difficulty is greatly improved.

[0008] Further, the is- non-judgment rule is whether there is a Raman spectrum specified peak in the Raman spectrum detection result of the electrode point (whether there is a Raman spectrum specified peak in the Raman spectrum detection result of the electrode point to which the voltage is applied according to the voltage value).

[0009] Combining the characteristics of the change of the peak position of some single-molecule materials with the increase of the voltage, the publisher can dynamically adjust the specified peak and the voltage value, further increasing the complexity of the encryption. For example, in different encryption periods or for different encrypted information, different peaks can be selected as specified peaks in combination with the voltage that should be applied, making it difficult for a third-party attacker to crack the encryption rules through long-term monitoring and analysis.

[0010] Further, in the is- non-judgment rule, there are multiple Raman spectrum specified peaks, and each electrode point corresponds to one Raman spectrum specified peak.

[0011] The multiple specified peak positions increase the difficulty of cracking by attackers. Attackers not only need to obtain the spectral information of all electrode points, but also need to accurately identify the specified peak position corresponding to each electrode point and the corresponding judgment rule, greatly increasing the workload and technical difficulty of cracking. Moreover, in combination with the reading sequence, the setting of different electrode points corresponding to different specified peak positions makes the encrypted information more covert during transmission. Even if the attacker intercepts part of the spectral information, it is difficult to piece together the complete encrypted information due to the unknown correspondence between the peak position and the electrode point and the correct reading sequence. At the same time, this setting also provides the possibility for the diversification of encrypted information. The publisher can flexibly adjust the specified peak position corresponding to each electrode point to achieve different levels of encryption strength.

[0012] Further, the yes-or-no judgment rule is whether the Raman spectrum peak position changes when the voltage of the electrode point continues to rise after being electrified.

[0013] The publisher can use this rule to develop more complex encryption strategies in combination with the differences in peak position changes of different single-molecule materials at different voltages. The receiver needs to control the amplitude of voltage rise and observe the peak position change when decrypting, and make judgments according to the established rules. This rule increases the dynamics and complexity of the encrypted information, making it more difficult for attackers to crack through simple spectral analysis. Different electrode points continue to rise in voltage based on different initial voltage values to observe the peak position change, forming a multi-level encryption condition. It can even be done by first judging whether there is a specified peak position, and then judging whether the peak position changes when the voltage rises after electrification, further improving the confidentiality and anti-cracking ability of the encrypted information.

[0014] Further, the peak signal intensity of the Raman spectrum of at least one of the single-molecule materials increases with the rise in voltage after electrification.

[0015] Further, the yes-or-no judgment rule is whether the peak signal intensity of the Raman spectrum increases when the voltage of the electrode point continues to rise after being electrified.

[0016] When the receiver applies voltage to the electrode point and performs Raman spectrum detection, in addition to factors such as peak position change, the receiver also needs to pay attention to the change in peak signal intensity. This multi-factor judgment method increases the complexity and confidentiality of the encrypted information. Attackers who want to crack the encrypted information need to analyze the change rules of multiple factors such as peak position, peak signal intensity on the peak position, and so on, and accurately master the specific judgment criteria for each electrode point, which greatly improves the confidentiality of the encrypted information.

[0017] Further, the device is provided with a glue seal on the surface.

[0018] The glue seal can prevent external environmental factors from damaging the monolayer on the device. For example, avoid chemical reaction between impurities, water vapor and monomolecular material in the air, affect the Raman spectrum characteristics, so as to ensure the accuracy and stability of the encrypted information, so that the receiver obtains more accurate Raman spectrum detection results.

[0019] Further, the decryption condition further comprises a detection depth; and the step of performing Raman spectrum detection on the device comprises: using a confocal Raman spectrometer to perform Raman spectrum detection on the device at the detection depth.

[0020] The glue seal not only plays a protective role, but also can be regarded as an encryption means. The glue seal will affect the Raman spectrum of the device surface, so that the third party cannot obtain the true spectral information of the monolayer when directly performing Raman spectrum detection on the device. The detection depth needs to be obtained together, and the true spectral information can be obtained only by detecting the depth of the monolayer under the glue seal through the confocal Raman spectrometer.

[0021] Further, in the decryption condition, the voltage values exist in multiple, and the voltage values required by part of the electrode points are different from those of other electrode points.

[0022] The voltage values required by different electrode points are different, so that the setting of the encrypted information is more flexible and diverse. The publisher can set unique voltage values for each electrode point according to the characteristics of the monomolecular material and the encryption requirements. In this way, in the decryption process, the receiver needs to accurately know the voltage value corresponding to each electrode point and correctly apply it, so that the monomolecular material presents the expected Raman spectrum change.

[0023] The method for transmitting encrypted information by using the characteristics of the monomolecular device of the present application relies on multiple encryption protection of the voltage values applied to the electrode points, the reading order of the Raman spectrum detection results, and the true / false judgment rules to encrypt the information. Even if a third party intercepts the device and has Raman spectrum detection capability, it is still difficult to decipher. The present application constructs a new encryption method around some monomolecular materials whose Raman spectrum will change after being applied with voltage, enriches the encryption method, and is conducive to meeting people's higher requirements for information encryption technology.

[0024] Other features and advantages of the present application will be set forth in the specification, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and attained by the structure particularly pointed out in the written description and claims hereof. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is one of the electrode point distribution maps on the substrate provided by the embodiments of the present application.

[0026] Figure 2 is a distribution map of electrode points on a substrate provided by an embodiment of the present application.

[0027] Figure 3 is a distribution map of a single-molecule material on array electrode points in an embodiment.

[0028] Figure 4 is a distribution map of specified Raman spectral peak positions corresponding to each electrode point in an embodiment.

[0029] Figure 5 is a distribution map of logical variables decrypted in an embodiment.

[0030] Figure 6 is a Raman spectrum of a single-molecule material Anylp1 under different voltages.

[0031] Figure 7 is a Raman spectrum of a single-molecule material 2SAc-BP-1 under different voltages.

[0032] Figure 8 is a Raman spectrum of a single-molecule material SCF3 under different voltages.

[0033] Reference signs: 99, substrate; 98, electrode; 989, electrode point; 988, pin. DETAILED DESCRIPTION

[0034] So that the objectives, technical solutions and superiorities of the embodiments of the present disclosure are more apparent, the technical solutions of the embodiments of the present disclosure are described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of the present disclosure.

[0035] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and acts of the various examples are described in a particular, combined technique. Of course, they can be practiced in an alternative order, and / or separately, from each other, without departing from the scope of the application.

[0036] It should be understood that any and all embodiments of the present application can be combined with the technical features in any other embodiment or multiple other embodiments to obtain additional embodiments, without conflict, provided that the combinations do not depart from the scope of the present application. The present application includes such combinations to obtain additional embodiments.

[0037] An embodiment of the present application provides a method for encrypted information transmission using single-molecule device characteristics, including device preparation, and the steps include: S0: The publisher makes a device with encrypted information. The device is distributed with multiple electrode points, each of which has only a monolayer formed by a single molecular material, and the device has more than one (e.g., three, four,...) single molecular material, and at least one of the single molecular materials has a Raman spectrum that changes after voltage is applied.

[0038] S1: The publisher transmits decryption conditions to the receiver. The decryption conditions include: the voltage value required to be applied to the electrode points, the reading order of the Raman spectrum detection results of the multiple electrode points, the true / false judgment rule of the Raman spectrum detection results, and the correspondence between the true / false judgment rule and the logical variable.

[0039] S2: The publisher sends the device with encrypted information to the receiver.

[0040] S3: The receiver applies voltage to the electrode points according to the voltage value, and performs Raman spectrum detection on the device, reads the Raman spectrum detection results of the multiple electrode points in the reading order, processes the Raman spectrum detection results according to the true / false judgment rule to obtain a reading result, and substitutes the correspondence into the reading result to obtain the encrypted information.

[0041] The voltage value includes 0V voltage, i.e., whether to apply voltage or not also belongs to one of the decryption conditions. The transmission means of step S1 may, for example, be face-to-face oral communication, sending information, etc.

[0042] In step S0, for example, the substrate material is first cleaned. The substrate material can be selected from glass materials, preferably a quartz substrate, which is pure and has few impurities and small interference with spectral signals. Next, an electrode mask is prepared, and the pattern can be arranged in a matrix form, and the spacing and number can be arbitrarily customized. The more electrodes, the more information that can be carried. After the mask is prepared, a gold layer electrode is prepared on the substrate using the mask, and each electrode has one or more electrode points. The specific array form can be as shown in Figure 1 or Figure 2 The substrate 99 is provided with four electrodes 98, each of which has four electrode points 989 connected in series, and the electrodes 98 are provided with two pins 988 for applying voltage. After the electrodes are prepared, a monolayer is grown on each electrode point, and the single molecular material of each electrode point can be different, and the Raman spectrum peak position is also different. Arranging different single molecules can encrypt information on the device.

[0043] In step S3, for example, the sample is placed on the detection platform of the Raman spectrum device, the device is powered on using the pins 988, and then Raman spectrum detection is performed to finally obtain the original information according to the decryption conditions.

[0044] The correspondence between the judgment rule and the logic variable is that, for example, the judgment result is "yes", and the logic variable is "1", and the judgment result is "no", and the logic variable is "0", so that the combination of 1 and 0 is matched with the decryption mode (coding rule) such as Morse code, and the encrypted information can be restored.

[0045] Implementation case According to the use requirements, a quartz substrate with a suitable size is selected, and in this embodiment, a quartz substrate with a size of 30mmX30mm and a thickness of 2mm is selected. A mask plate with the same size as the quartz substrate is prepared according to the size of the quartz substrate. The mask plate has a specific square region in the hollowed-out part, which is composed of a 4x4 square array, and the length and width of each square are 4mm. The prepared mask plate and quartz substrate are placed in an evaporation machine to evaporate a gold layer, and a quartz substrate with a gold electrode in the shape of the mask plate is obtained, which has the same structure as Figure 1 .

[0046] A 1x10 -4 -3 mol / L organic monomolecular solution is prepared by using high-purity tetrahydrofuran. Four kinds of monomolecular materials can be selected. Triethylamine is added to the solution to promote molecular growth. The solution is sealed in a volumetric flask for standby. The four kinds of monomolecular solutions are named as material 1, material 2, material 3, and material 4 in order. The Raman spectrum switching wave number (new Raman peak position after power-on) of material 1 is near 1300cm -1 , the spectrum switching wave number of material 2 is near 1400cm -1 , the spectrum switching wave number of material 3 is near 1500cm -1 , and the spectrum switching wave number of material 4 is near 1600cm -1 .

[0047] The previously prepared quartz substrate is taken out, and the prepared monomolecular solution is dropped into each rectangular array according to the Figure 3 ( Figure 3 , in which "1", "2", "3", and "4" represent the corresponding monomolecular layers of material 1, material 2, material 3, and material 4, respectively). Then, the substrate is placed in a tetrahydrofuran atmosphere growth container and sealed. After standing overnight at room temperature, the sealed growth container is opened, the substrate is clamped, and the surface is washed with a dropper to remove tetrahydrofuran solution. After washing, the surface is dried with nitrogen. Finally, a layer of high-transparency organic silicone encapsulating glue is coated on the center surface of the entire substrate, and the pins need to be exposed. The organic silicone encapsulating glue has low volatility, high purity, and good chemical stability, which can minimize spectral interference and protect the monomolecular layer.

[0048] In this implementation case, the decryption conditions include: The voltage value required to be applied to the electrode point: the voltage value required for each electrode point is greater than 0.

[0049] The reading sequence of the Raman spectrum detection results of the multiple electrode points: reading each row from left to right, and reading each row from top to bottom.

[0050] The yes-or-no judgment rule for the Raman spectrum detection results: whether the Raman spectrum designated peak exists in the Raman spectrum detection result of the electrode point. Specifically, as shown in the table, the electrode points in the first column are all yes-or-no for the 1300 cm-1peak, the electrode points in the second column are all yes-or-no for the 1400 cm-1peak, the electrode points in the third column are all yes-or-no for the 1500 cm-1peak, and the electrode points in the fourth column are all yes-or-no for the 1600 cm-1peak. Figure 4 -1 -1 -1 -1

[0051] The detection depth is used to determine the thickness of the encapsulation layer through which the single-molecule material is actually detected.

[0052] The correspondence between the yes-or-no judgment rule and the logic variable: “1” for the designated peak, and “0” for the non-designated peak.

[0053] After receiving the prepared device, the receiver connects the electrodes according to the pin distribution of the electrodes, and then performs Raman spectrum detection on the device using a confocal Raman spectrometer. The decryption result is shown in Table 2, where “1” does not represent material 1, but “1” of the logic variable. Figure 5 Figure 5 The encrypted information is 0100 1111 0100 1011. According to the ASCII code 8-bit binary number 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”.

[0054] As can be seen from the above implementation case, the voltage applied to each electrode point can be different (i.e., there are multiple voltage values, and the voltage value required to be applied to some electrode points is different from that of other electrode points), and the peak to be monitored for each electrode point can be different (i.e., there are multiple Raman spectrum designated peaks, and each electrode point corresponds to only one Raman spectrum designated peak). If not all the electrode points are powered on as in the above implementation case, but some are not powered on and some are powered on, and then combined with different monitoring peaks and different reading sequences, the decryption difficulty can be greatly increased.

[0055] Other reading sequences, such as interval reading, S-shaped path traversal of the electrode points, etc. The distribution of the electrode points on the device can also be triangular, hexagonal, irregular, etc.

[0056] The Raman spectrum of the single-molecule material after applying voltage changes compared to before applying voltage, including but not limited to the following types: The first type: the Raman spectrum peak is different after the single-molecule material is powered on compared to before being powered on. ​​​​​​

[0057] The second type, the monomolecular material, in the case of having been powered, continues to increase the voltage will result in different Raman spectrum peak position.

[0058] The third type, the monomolecular material, in the case of having been powered, continues to increase the voltage will result in the peak signal intensity of Raman spectrum is enhanced with the increase of voltage.

[0059] The typical example of the first type of monomer is Anylp1 ("Anylp1" is a self-defined name for the inventor for easy expression, not a conventional trade name, and the specific structure shall be subject to the structural formula). The structural formula of Anylp1 is as follows:

[0060]

[0061] Among them, the -SAc group represents -S-CO-CH3. The Raman spectrum of Anylp1 under 0V and 0.6V voltage is shown in Figure 6 It can be seen that after power on, compared with before power on, a new characteristic peak position (shown in the black rectangular frame in the figure) appears at 1300cm -1 .

[0062] The typical example of the second type of monomer is 2SAc-BP-1. The structural formula of 2SAc-BP-1 is as follows:

[0063]

[0064] The Raman spectrum of 2SAc-BP-1 under 0.5V, 0.9V, 1.5V voltage is shown in Figure 7 It can be seen that under different voltages, the characteristic peak position of 2SAc-BP-1 is different after power on.

[0065] The typical example of the third type of monomer is SCF3. The structural formula of SCF3 is as follows:

[0066]

[0067] The Raman spectrum of SCF3 under 0.1V, 0.2V, 0.5V, 0.7V, 1.0V, 1.5V voltage is shown in Figure 8 It can be seen in the Figure 8 red frame that the peak signal intensity at 1600cm -1 increases with the increase of voltage.

[0068] In implementation, two or three of the three types of monomolecular can be mixed, and in the decryption condition, a special voltage value is specified for each electrode point, and the voltage values of different electrode points are partially the same and partially different. For each electrode point, a specific yes-no judgment rule is specified, and for some electrode points, the yes-no judgment rule is whether a specified peak position exists; for some electrode points, the yes-no judgment rule is whether the Raman spectrum peak position will change if the voltage is continuously increased after the electrode point is powered on; and for some electrode points, the yes-no judgment rule is whether the Raman spectrum peak signal intensity will increase if the voltage is continuously increased after the electrode point is powered on. In this way, the decryption difficulty can be greatly increased, and even the multiplexing of the monolayer in decoding can be realized, that is, the monolayer on the same device can be used to translate two different texts by cooperating with different yes-no judgment rules and voltage values.

[0069] In the description of the present specification, the description referring to the terms "one embodiment", "certain embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, materials, or characteristics described in connection with the described embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the scope of protection of the present application.

Claims

1. A method for encrypted information transfer using single molecule device characteristics, characterized by the steps of The method comprises the following steps: The publisher passes the decryption condition to the receiver; The publisher sends the receiver a device with encrypted information recorded thereon; The device is provided with a plurality of electrode points, each of which has a monolayer formed by a single molecular material, and the device has more than one kind of single molecular material, and at least one of the single molecular materials has a changed Raman spectrum after being applied with voltage; The decryption condition comprises: a required voltage value applied to the electrode points, a reading sequence of Raman spectrum detection results of the plurality of electrode points, a yes-or-no judgment rule of the Raman spectrum detection results, and a correspondence between the yes-or-no judgment rule and a logic variable; The receiver applies voltage to the electrode points according to the voltage value, and performs Raman spectrum detection on the device, reads the Raman spectrum detection results of the plurality of electrode points in the reading sequence, processes the Raman spectrum detection results according to the yes-or-no judgment rule to obtain a reading result, and substitutes the correspondence into the reading result to obtain the encrypted information.

2. The method for encrypted information transmission using a single molecule device characteristic according to claim 1, characterized by, The Raman spectrum peak position of at least one of the single molecular materials changes with the increase of the voltage.

3. The method for encrypted information transmission using a single molecule device characteristic according to claim 1 or 2, characterized by, The yes-or-no judgment rule is whether the Raman spectrum detection result of the electrode point has a specified Raman spectrum peak position.

4. The method for encrypted information transmission using a single molecule device characteristic according to claim 3, characterized by, In the yes-or-no judgment rule, there are a plurality of specified Raman spectrum peak positions, and each of the electrode points corresponds to one of the specified Raman spectrum peak positions.

5. The method for encrypted information transmission using a single molecule device characteristic according to claim 2, wherein, The yes-or-no judgment rule is whether the Raman spectrum peak position changes when the voltage of the electrode point is continuously increased.

6. The method for encrypted information transmission using a single molecule device characteristic according to claim 1, wherein, The peak signal intensity of the Raman spectrum of at least one of the single molecular materials increases with the increase of the voltage.

7. The method for encrypted information transmission using a single molecule device characteristic according to claim 6, wherein, The yes-or-no judgment rule is whether the peak signal intensity of the Raman spectrum increases when the voltage of the electrode point is continuously increased.

8. The method for encrypted information transmission using a single molecule device characteristic according to claim 1, wherein, The device is provided with a glue seal on the surface.

9. The method for encrypted information transmission using a single molecule device characteristic according to claim 8, wherein, The decryption condition further comprises a detection depth, and the step of performing Raman spectrum detection on the device comprises: using a confocal Raman spectrometer to perform Raman spectrum detection on the device according to the detection depth.

10. The method for encrypted information transmission using a single molecule device characteristic according to claim 1, wherein, In the decryption condition, there are a plurality of voltage values, and the voltage value required to be applied to part of the electrode points is different from that required to be applied to other electrode points.

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