KR20190105833A - True random number generation device and method using visible light for secure communication - Google Patents

Abstract

Disclosed in the present invention are a true random number generating device and a generating method using a visible light for secure communication. According to an aspect of the present invention, a true random number generating device using a visible light for secure communication can generate unpredictable random values (random numbers) since the true random number generating device generates a true random number (TRN) by using a visible light as a source, which has different values even if measured at the same location and at the same time, thereby providing safer communication in a 5G or sensor network.

Description

Pure random number generation device using visible light for safe communication and generation method {TRUE RANDOM NUMBER GENERATION DEVICE AND METHOD USING VISIBLE LIGHT FOR SECURE COMMUNICATION}

The present invention relates to a pure random number generating apparatus and a method for generating pure random number using visible light for secure communication, and more particularly, pure random number (TRN) using visible light for secure communication in 5G or sensor network The present invention relates to a pure random number generating device using a visible light for generating a safe communication and a generating method.

The cryptographic system is a system for preventing the leakage and manipulation of information transmitted by an attacker. At this point, the key to cryptography is cryptographic algorithms and keys. Of these, keys are generally generated based on seed, and the seed must be random. For this reason, many conventional cryptographic systems use a random number generator to randomly generate seeds and keys. In addition, these random values are not only used as keys, but also for various applications. For example, it is used for generation of padding bits, masking generation for defense of DPA (Diffenential Power Analysis), hypothesis operation, generation of OTP value, lottery draw and statistical simulation. In particular, in 5G or sensor networks, a variety of information is transferred between communication entities, and cryptography is required to securely communicate it. Therefore, it is essential to use keys for encryption / decryption of the transmitted information, and the security of these keys is closely related to the security of 5G or sensor networks.

On the other hand, the random number may be generated by a pseudo random number generator (PRNG) or a pure random number generator (TRNG). PRNGs intentionally generate random numbers rather than complete random numbers using software methods. TRNG, on the other hand, uses purely hardware methods to generate pure random numbers (true random numbers).

In this case, the PRNG is a deterministic system, and the entropy of the initial value is high to ensure safety, but it is impossible to generate a perfect random value (random number) in the deterministic system. Therefore, a problem arises in that the attacker can infer the key by generating the same random value (random number) by generating the same initial value.

Therefore, there is a need for a study to generate an unpredictable random value (random number) so that the key cannot be inferred.

Korean Laid-Open Patent No. 2012-0062287 (Published June 14, 2012)

The present invention has been proposed to solve the above problems, and has a different value even if measured at the same location and the same time, secure communication that generates a random value (random number) using a visible light having a relatively wide range of values It is an object of the present invention to provide a pure random number generating device and a method for generating using visible light.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by one embodiment of the present invention. It will also be appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In accordance with an aspect of the present invention for achieving the above object, a pure random number generating device using visible light for secure communication, collecting unit for collecting the visible light data, converting the analog signal to a digital signal for transmission; Random number generation unit for generating a random number using the data of the visible light received from the collection unit; And an output unit for storing the random number generated from the random number generator as a file having a format for measuring entropy and outputting the generated random number.

The visible light has information of wavelength, frequency and photon energy, and the collection unit includes at least one of the wavelength, frequency, and photon energy. It is characterized in that for collecting the visible light data.

The random number generator, after the post-processing process using the visible light data received from the collection unit, characterized in that to generate a random number by extracting the result value by binarization.

The random number generator, when the collector collects data using the wavelength of the visible light, in order to improve the randomness of the data, the value of two decimal places of the electromagnetic wave information included in the spectrum of the wavelength (wavelength) Characterized in that the post-processing process to process the data to generate a random number.

According to another aspect of the present invention for achieving the above object, a pure random number generation method using visible light for secure communication, the collecting unit, collecting the visible light data, converting the analog signal to digital transmission; Generating a random number by using a random number generation unit using data of visible light received from the collection unit; And an output unit, storing the random number generated from the random number generator as a file having a format for measuring entropy and outputting the generated random number.

The visible light has information of wavelength, frequency and photon energy, and the collecting of the visible light data and converting the analog signal to digital signal may be performed by the wavelength. And collecting data of the visible light using at least one of frequency and photon energy.

Generating a random number by using the data of the visible light received from the collector, performing a post-processing process using the data of the visible light received from the collector; And generating a random number by binarizing the data obtained by performing the post-processing process and extracting a result value.

In the post-processing process using the data of the visible light received from the collector, when the collector collects data using the wavelength of visible light, the wavelength (in order to improve the randomness of the data) and processing the value of two decimal places among the electromagnetic wave information included in the spectrum of wavelength) as data for generating a random number.

According to an aspect of the present invention, since a true random number (TRN) is generated using visible light having a different value as a source even when measured at the same location and at the same time, the random value (random number) of the unpredictable It can be created, which can provide more secure communication in 5G or sensor networks.

The effect obtained in the present invention is not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. .

The following drawings attached to this specification are illustrative of the preferred embodiments of the present invention, and together with the specific details for carrying out the invention serve to further understand the technical spirit of the present invention, the present invention in such drawings It should not be construed as limited to the matters described.
1 is a view showing a schematic configuration of a pure random water generating apparatus according to an embodiment of the present invention,
2 is a view showing visible light according to an embodiment of the present invention;
3 illustrates the form of spectral data collected according to an embodiment of the present invention;
4 is a schematic flowchart of a pure random number generating method according to an embodiment of the present invention.

The above objects, features, and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless otherwise stated. In addition, the “…” described in the specification. “Unit” refers to a unit that processes at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

1 is a view showing a schematic configuration of a pure random water generating apparatus according to an embodiment of the present invention, Figure 2 is a view showing a visible light according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention Figure is a view showing the form of the collected spectral data according to the example.

Referring to FIG. 1, the apparatus 100 for generating pure random numbers according to the present exemplary embodiment includes a collecting unit 110, a random number generating unit 120, and an output unit 130.

The collector 110 collects data for generating random numbers. The collector 110 collects data by a hardware method, and the collected data may be visible light data. Referring to FIG. 2, visible light is an area of electromagnetic waves having a range of 400 nm to 700 nm, and this area is called a spectrum. One spectrum has information of more than 300 electromagnetic waves, the range of the information also has a wide range corresponding to the range of electromagnetic waves. Therefore, the visible light includes a lot of information that can be utilized as a random number, and since the information is derived from electromagnetic waves, it is suitable to use as a random number because the noise included is also high. That is, the visible light may have different values even when measured at the same location and at the same time, and the range of the values may be relatively wide, thereby making it possible to generate an unpredictable random value (random number). In other words, visible light may enable generation of an unpredictable random value (random number) even in the same environment. Visible light has various information in wavelength, frequency and photon energy, as shown in FIG.

The collector 110 collects visible light data using at least one of a wavelength, a frequency, and photon energy. That is, the collector 110 collects visible light data by using any one or a combination of wavelength, frequency, and photon energy.

In the present embodiment, it is assumed that the collector 110 collects visible light data based on a wavelength, and some of the collected visible light information may be as shown in Table 1 below.

Wavelength 400 401 … … 729 730 Specrtum-1 494.766 522.441 … … 100.503 102.182 Specrtum-2 511.546 541.434 … … 118.605 117.104 … … … … … … … … … … … … Specrtum-999 499.242 530.513 … … 117.365 119.576 Specrtum-1000 497.171 527.082 … … 120.048 122.871

Meanwhile, the collected visible light data may be in the form of an analog signal, and the collection unit 110 converts the analog signal into a digital signal and transmits it.

The collection unit 110 may collect visible light data by using a sensor and transmit the collected information by using an interface.

The random number generator 120 generates random numbers using data of visible light received from the collector 110. The random number generator 120 performs a post-processing process using data of visible light received from the collector 110, and generates a random number by binarizing and extracting a result value. At this time, the collected spectrum is not distributed as shown in FIG. 3 and has a concentrated characteristic. Therefore, it is necessary to improve the randomness of the collected data, and for this purpose, the post-processing process is performed based on the value of two decimal places of the collected data. That is, when the collection unit 110 collects data using the wavelength of visible light, the random number generator 120 may include information about electromagnetic waves included in a spectrum having a wavelength in order to improve randomness of the data. The post-processing process is performed to process two digits after the decimal point as data for generating a random number. The post-processing process is a process for generating random numbers using the collected visible light data. The post-processing process can increase the distribution, reduce the correlation between each spectrum, and increase the random island. The result of the post processing process is binarized to measure entropy, and the resulting result has a value of zero or one.

The output unit 130 stores the random number generated from the random number generator 120 as a file having a format for measuring entropy, and outputs the generated random number.

As described above, for example, each sensor in the 5G or sensor network, the sensor and the gateway may generate a random value (random number) and use it as a key, thereby providing more secure communication.

Meanwhile, in the present embodiment, the components of the pure water random number generating device 100 are described as operating individually, but the present invention is not limited thereto and may be controlled by a controller (not shown) to operate organically.

4 is a schematic flowchart of a pure random number generating method according to an embodiment of the present invention.

Referring to FIG. 4, first, the pure random number generating device 100 collects data of visible light (S410). Thereafter, the visible light data collected in the form of an analog signal is converted into a digital signal and transmitted. The visible light has information of wavelength, frequency and photon energy, and the collection unit 110 includes at least any one of wavelength, frequency and photon energy. Collect data of visible light using one.

The pure random number generating device 100 generates a random number using the received visible data (S420). The random number generator 120 performs a post-processing process by using the visible light data received from the collector 110, and generates a random number by binarizing and extracting a result value.

The pure random number generating apparatus 100 stores the generated random number as a file having a format for measuring entropy, and outputs the generated random number (S430).

Pure Random Number Generator (TRNG) 100 according to the present embodiment generates a random number from sufficient information available and noise included in the information, at this time, a source of visible light that can generate more noise Use as. In this case, since visible light has different values even when measured at the same location and at the same time, it is possible to generate an unpredictable random value (random number), thereby providing more secure communication in 5G or sensor network.

Methods according to an embodiment of the present invention may be implemented in the form of program instructions that may be implemented as an application or executed through various computer components, and may be recorded on a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the computer-readable recording medium may be those specially designed and constructed for the present invention, and may be known and available to those skilled in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs, DVDs, and magneto-optical media such as floptical disks. media) and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules to perform the process according to the invention, and vice versa.

While this specification includes many features, such features should not be construed as limiting the scope of the invention or the claims. In addition, the features described in the individual embodiments herein can be implemented in combination in a single embodiment. Conversely, various features described in a single embodiment of the present specification can be implemented individually in various embodiments or in combination as appropriate.

Although the operations have been described in a particular order in the drawings, they should not be understood as being performed in a particular order as shown or in a sequence of successive orders, or all of the described actions being performed to obtain a desired result. Multitasking and parallel processing may be advantageous in certain circumstances. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The app components and systems described above may generally be packaged in a single software product or multiple software products.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawing.

100: pure random water generator
110: collection unit
120: random number generation unit
130: output unit

Claims (8)

A collector for collecting data of visible light and converting the analog signal into a digital signal and transmitting the digital signal;
Random number generation unit for generating a random number using the data of the visible light received from the collection unit; And
And an output unit for storing the random number generated by the random number generator as a file having a format for measuring entropy and outputting the generated random number. The method of claim 1,
The visible light has information of wavelength, frequency and photon energy.
The collection unit,
Apparatus for generating a pure random number using visible light for secure communication, characterized in that for collecting the data of the visible light using at least one of the wavelength (wavelength), frequency (frequency) and photon energy (photon energy). The method of claim 1,
The random number generator,
After the post-processing process using the data of the visible light transmitted from the collecting unit, and generates a random number by extracting the result value by binarization, pure random water generating device using the visible light for secure communication. The method of claim 3, wherein
The random number generator,
When the collector collects data using the wavelength of visible light, in order to improve randomness of the data, random numbers are generated by two decimal places of values of electromagnetic wave information included in the spectrum of the wavelength. Pure random number generation apparatus using visible light for secure communication, characterized in that for performing a post-processing process to process the data for. A collecting unit, collecting data of visible light, converting an analog signal into a digital signal, and transmitting the digital signal;
Generating a random number by using a random number generation unit using data of visible light received from the collection unit; And
And an output unit storing the random number generated by the random number generator as a file having a format for measuring entropy and outputting the generated random number. The method of claim 5,
The visible light has information of wavelength, frequency and photon energy.
Collecting the data of the visible light, and converting the analog signal to a digital signal and transmitting the,
Collecting the data of the visible light using at least one of the wavelength, frequency and photon energy (pure random generation) using the visible light for secure communication Way. The method of claim 5,
Generating random numbers using the visible light data received from the collection unit,
Performing a post-processing process using data of visible light received from the collection unit; And
And generating a random number by binarizing the data obtained by performing the post-processing process and extracting a resultant value. The method of claim 7, wherein
After the post-processing process using the visible light data received from the collection unit,
When the collector collects data using the wavelength of visible light, in order to improve randomness of the data, random numbers are generated by two decimal places of values of electromagnetic wave information included in the spectrum of the wavelength. Pure random number generation method using visible light for secure communication, comprising the step of processing the data for.

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