KR20190136424A - Encrypting and decrtypting apparatus equipped with polarization phenomenon of magnetic fluid and encrypting and decrtypting method using the same apparatus - Google Patents

Abstract

The present invention relates to an encryption and decryption apparatus using polarization of light appearing in a magnetic fluid, and an encryption and decryption method using the same. More particularly, the encryption and decryption apparatus comprises: an encryption transmission unit for emitting an encrypted image with light; a polarization filter unit in which the light emitted from the encryption transmission unit is incident and secondly encrypted by polarization; and an encryption reception unit configured to receive the secondly encrypted light from the polarization filter unit.

Description

Encryption and decryption apparatus using polarization of light appearing in magnetic fluid and encryption and decryption method using the same {ENCRYPTING AND DECRTYPTING APPARATUS

The present invention relates to an encryption and decryption apparatus and method using a magnetic fluid as a polarization filter, and more particularly, to an encryption and decryption apparatus and an encryption and decryption method using polarization of light appearing in a magnetic fluid.

The importance of security of personal information is emphasized more and more in the modern information society, but every year, personal information leakage accidents through hacking occur continuously. In order to prevent the exposure of personal information about such hacking and other important information, encryption technology with security of information is essential.

One of the most widely used public key cryptosystems is RSA cryptography. RSA cryptography has the advantage that the recipient owns the cryptographic key by default, so there is no risk of the cryptographic key being exposed in transit, and if the receiver is well managed, there is a significant reduction in the risk of exposure to the outside, like the cryptosystem prior to RSA. .

However, despite this stability, the encryption algorithm of the RSA cipher system has a problem that it takes too long to generate the necessary cipher because it is based on the mathematical complexity of using a very large prime number. In addition, if an algorithm that can be solved through prime factorization in a short time is found, the security of the existing RSA encryption algorithm is expected to be broken.

Therefore, unlike the existing RSA encryption system, techniques have been proposed for generating a password relatively easily without having to find a large prime number.

Republic of Korea Patent No. 10-1602803 (name: encryption and decryption method using polarization) is an encryption and decryption method using polarization, '0' means a horizontal polarization in advance or '1' means a vertical polarization The present invention proposes an encryption and decryption technique using a generated encryption key.

However, even with the present technology, there is a limitation in its utilization in that the polarization filter cannot change the polarization direction of light flexibly. Therefore, the present invention proposes an encryption and decryption technique that uses polarization without generating a large prime number, but utilizes optical properties of light appearing in a magnetic fluid in a magnetic field.

Republic of Korea Patent Publication No. 10-1602803

An object of the present invention for solving the above problems is to provide an encryption and decryption apparatus and a method for encrypting and decrypting using the same, based on the polarization of light generated in the magnetic fluid, as a polarization filter.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems that are not mentioned may be clearly understood by those skilled in the art from the following description. There will be.

Configuration of the present invention for achieving the above object is an encryption transmitter for emitting an encrypted image with light; A polarization filter unit in which light emitted from the encryption transmitter is incident and secondly encrypted by polarization; And an encryption receiver configured to receive second-order encrypted light from the polarization filter unit.

In an embodiment of the present invention, the polarizing filter portion is a magnetic fluid prepared by melting a ferromagnetic particles having a special arrangement under a magnetic field in the form of a colloid in a solvent; And an electromagnet that forms a magnetic field around the conductive wires when a current is supplied to the conductive wires, and the polarization direction of the light incident on the polarization filter unit may be flexibly adjusted according to the direction of the magnetic field. .

In an embodiment of the present invention, the electromagnet has a circular solenoid made of a wire wound tightly and uniformly in a cylindrical shape; And it may be characterized in that it comprises a power source for supplying a current to the wire.

In the embodiment of the present invention, the circular solenoid is configured so that the enameled wire with the sheath is wound around the surface of the wire, but the end of the wire is configured to remove the sheath of the wire to allow current to flow. It can be characterized.

In an embodiment of the present invention, the interferometer further comprises, the interferometer comprises a Mach-Zehnder interferometer, the light emitted from the encryption transmitter is divided into two directions by the interferometer can be encrypted or decrypted. have.

In an embodiment of the present invention, the interferometer part may be characterized in that it receives the polarized light from the polarization filter unit.

In an embodiment of the present disclosure, the interferometer may include: a first beam splitter configured to reflect a portion of light incident from the launch unit and transmit an unreflected remainder of the incident light; A first mirror positioned at a position where light reflected from the first beam splitter arrives and reflecting light reflected from the first beam splitter; A second mirror positioned at a position where light transmitted from the first beam splitter arrives and reflecting light transmitted from the first beam splitter; And a light source positioned at a place where the light reflected from the first mirror and the light reflected from the second mirror arrive together to transmit the light reflected from the first mirror and reflect the light reflected from the second mirror. It may be characterized by including a two-beam splitter.

In an exemplary embodiment of the present invention, the secondary encrypted light may be emitted to the polarization filter unit in reverse to decrypt the secondary encrypted light.

In an embodiment of the present invention, the encrypted image is composed of a square of 2ⁿⅹ2ⁿ consisting of numbers converted to the binary method by converting the sentence to be encrypted to the binary number, consisting of the number 1 in the square of 2ⁿⅹ2ⁿ The portion may be filled with black, and the portion composed of the number 2 in the square matrix of 2 ⁿⅹ 2 ′ may be filled with white, thereby encrypting the first order.

Another configuration of the present invention for achieving the above object comprises the steps of imaging a sentence that is the target of the encryption; Firing the image into light by an encryption transmitter; The light emitted from the encryption transmitter is incident to the polarization filter; A polarization phenomenon occurs to light incident to the polarization filter unit; And incident light into the cryptographic receiver, wherein the polarized light is generated, wherein the polarized light filter is a polarized light filter of any one of claims 1 to 7. An encryption and decryption method is provided.

In an embodiment of the present invention, the interferometer further comprises, the interferometer comprises a Mach-Zehnder interferometer, the light emitted from the encryption transmitter is divided into two directions by the interferometer can be encrypted or decrypted. have.

In an embodiment of the present invention, the interferometer part may be characterized in that it receives the polarized light from the polarization filter unit.

In an embodiment of the present disclosure, the interferometer may include: a first beam splitter configured to reflect a portion of light incident from the launch unit and transmit an unreflected remainder of the incident light; A first mirror positioned at a position where light reflected from the first beam splitter arrives and reflecting light reflected from the first beam splitter; A second mirror positioned at a position where light transmitted from the first beam splitter arrives and reflecting light transmitted from the first beam splitter; And a light source positioned at a place where the light reflected from the first mirror and the light reflected from the second mirror arrive together to transmit the light reflected from the first mirror and reflect the light reflected from the second mirror. It may be characterized by including a two-beam splitter.

In an exemplary embodiment of the present invention, the secondary encrypted light may be emitted to the polarization filter unit in reverse to decrypt the secondary encrypted light.

In an embodiment of the present invention, the step of imaging the sentence by the subject of the encryption step of encrypting the sentence to be the target of the encryption by a binary number; Filling the binary transformed number into a square matrix of 2ⁿⅹ2ⁿ; And forming a portion of the square matrix by filling the black portion and filling the portion with the number zero by white to form the image.

The effect of the present invention according to the above configuration is based on the optical properties of the light appearing in the magnetic fluid in the magnetic field without having to find a large prime number, using a polarizing filter to provide a simple and stable password generation method have.

Another effect of the present invention according to the configuration as described above is that it is possible to secure the diversity and stability of the generated password in that the polarization direction in the magnetic fluid as a polarizing filter can be freely adjusted freely according to the direction of the magnetic field to be applied. have.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a block diagram of an encryption and decryption apparatus using polarization of light generated in a magnetic fluid according to an embodiment of the present invention.
2 is a perspective view of an interferometer portion composed of a Mach-Zehnder interferometer according to an embodiment of the present invention.
3 is a flowchart illustrating an encryption and decryption method using polarization of light generated in a magnetic fluid according to an embodiment of the present invention.
4 is a flowchart illustrating a method of imaging a sentence to be encrypted according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, coupled)" with another part, it is not only "directly connected" but also "indirectly connected" with another member in between. "Includes the case. In addition, when a part is said to "include" a certain component, this means that it may further include other components, without excluding the other components unless otherwise stated.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Among the public key cryptosystems, the most widely used public key cryptosystem is RSA cryptography, and the stability of the RSA cryptosystem is based on the fact that prime factorization is difficult in very large numbers.

However, the existing RSA cryptosystem has a problem that the process to generate the necessary ciphers is too complicated because it needs to find a very large prime number. In addition, when an algorithm that can facilitate prime factorization even after a very large minority emerges, the security of the RSA cryptosystem may be easily broken.

Therefore, the present invention proposes a technique for easily generating a cipher using the optical properties of light without applying a large prime number by applying a polarization filter using a magnetic fluid in a magnetic field.

Due to the characteristic of magnetic fluid that forms a unique shape near the magnet and attracts to the magnet, it is easy to introduce the magnetic fluid as a novel phenomenon in various media media. Magnetic fluids, so-called liquid magnets, are simply liquids that harden in the presence of a magnetic field.

Essentially, a magnetic fluid is a liquid made in colloidal form by dissolving tiny ferromagnetic particles such as iron oxide nanoparticles in a solvent such as water or ethanol. Therefore, the magnetism is attracted by the magnetism of the ferromagnetic body near the magnet, and according to the magnetic field, the ferromagnetic particles have a special arrangement.

More specifically, the magnetic fluid may be coated with unsaturated fatty acids on the surface of the magnetite, manganese ferrite, nickel ferrite, cobalt ferrite, barium ferrite, iron, nickel and strong ferromagnetic nanoparticles having a diameter of 10 nm to 20 nm, and then be water, oil or aliphatic. It is a colloidal liquid dispersed in a solvent such as a hydrocarbon or an aromatic hydrocarbon. Each ferromagnetic nanoparticle is completely coated with a surfactant so that no phenomenon such as aggregation or precipitation occurs.

When the magnetic fluid is placed under a magnetic field due to the arrangement-related properties of the ferromagnetic particles, the light incident on the magnetic fluid causes diffraction and polarization due to its optical properties. Based on the optical properties, according to an embodiment of the present invention, the encryption technique by the polarizing filter including a magnetic fluid will be described.

1 is a block diagram of a character encryption apparatus having a polarization filter to which a polarization phenomenon of a magnetic fluid is applied according to an embodiment of the present invention.

An encryption apparatus according to an embodiment of the present invention includes a cryptographic transmitter 100 for emitting a first encrypted image with light; A polarization filter unit 200 which is second-order encrypted while causing a polarization phenomenon to the light emitted from the encryption transmitter 100; And a cipher receiver 300 that receives the second encrypted light from the polarization filter unit 200.

The image transmitted by the encryption transmitter 100 with light corresponds to an image obtained by converting a sentence originally encrypted as a number into a figure, and the first encryption method will be described later.

When the cryptographic transmitter 100 emits the first encrypted image to be encrypted as light, the light is incident on the polarization filter and polarization occurs due to the optical properties of the light. The password receiving unit 300 receives the light. In this way, the user can achieve a second encryption on the first encrypted image.

According to the exemplary embodiment of the present invention, the polarization filter unit 200 dissolves ferromagnetic particles having a special arrangement under a magnetic field in a solvent to supply a magnetic fluid 210 and a conductor, which are manufactured in a colloidal form, to supply a current around the conductor. It may include an electromagnet 220 to form a magnetic field.

Since the magnetic fluid 210 is inherently a colloidal liquid, incident light is scattered when the light is shot. Therefore, a tind phenomenon occurs due to the scattering of the light, and thus the path of the light is visible. If the magnetic field is applied, the ferromagnetic particles are arranged in a predetermined direction, and a length is formed in which the light can pass straight without being scattered.

However, since the gap between the nanoparticles is very small, it acts like a slit (Slit), the light diffraction occurs, and thus the diffraction pattern is observed. In addition, depending on the arrangement of nanoparticles, polarization of light can be observed like a polarizing film.

The electromagnet 220 serves to provide a magnetic field that affects the magnetic fluid 210. The brightness of the diffraction pattern of light is changed by polarization according to the direction of the magnetic field acting on the magnetic fluid 210 by the electromagnet 220.

Accordingly, one embodiment of the present invention can be characterized in that the electromagnet 220 can be flexibly adjusted to the polarization direction occurring in the magnetic fluid 210 in accordance with the direction of the magnetic field to the magnetic fluid (210) have.

The significance of the ability to flexibly control the polarization direction lies in the diversity of the cryptography. Because angles are a range of real numbers, a hacker's point of view to solve the generated ciphers would have to fit an infinite number of angles in real units. However, this is practically impossible unless the hacker has a sufficient experimental apparatus according to an embodiment of the present invention.

On the other hand, in the case of a person equipped with an experimental apparatus according to an embodiment of the present invention, it is possible to immediately decrypt a cipher. In addition, when the magnetic fluid 210 takes a magnetic field of a predetermined size or more, the ferromagnetic particle array becomes constant, so that the intensity of light due to polarization becomes constant, in an embodiment of the present invention in a strong and uniform magnetic field. The resulting password will be more secure.

Accordingly, the electromagnet 220 should be able to freely adjust the polarization direction of the light, for this purpose, the electromagnet 220 has a magnetic field sufficient to affect the arrangement of the ferromagnetic particles to the magnetic fluid 210 It should be provided regularly.

According to one embodiment of the present invention, the electromagnet 220 is characterized in that it comprises a circular solenoid made of winding the wire through which the current can flow in a dense and uniform cylindrical shape and a power source for supplying current to the wire. can do.

As a result of the actual experiment, when the electromagnet 220 is a neodymium magnet, the neodymium magnet is attached to the upper lid and the bottom of the vial bottle filled with the magnetic fluid 210, and to the magnetic fluid 210. Even if light passes, diffraction and polarization of light do not occur when the concentration of the magnetic fluid 210 is high.

The diluent may be prepared to further dilute the concentration of the magnetic fluid 210, but in this case, since the solute may not uniformly dissolve in the colloidal form, the magnetic field acts very strongly when the neodymium magnet comes close to the solvent and the The stock solution of the magnetic fluid 210 is separated as it is.

In order to enable a magnetic field of a relatively constant and uniform degree to be applied to the magnetic fluid 210 according to the present experimental example, the electromagnet 220 is composed of a circular coil made of a conductive wire through which current can flow rather than the neodymium magnet. It could be in the form of a solenoid.

However, when the conductive wire of the circular solenoid is wound with a copper wire, since the copper wire has no coating on the surface, the current simply flows in a straight line. Since the magnetic field is not formed in a desired direction because it is a straight line rather than a circular coil, there is a limit to allowing a uniform and constant magnetic field to act on the magnetic fluid 210 as described above.

Therefore, according to one embodiment of the present invention, the circular solenoid wire may be characterized by being composed of a custom solenoid wound with an enameled wire. The surface of the conductive wire is wound around the coated enameled wire, and the end portion of the conductive wire may be configured to peel off the enameled wire so that a current flows.

In fact, in the case of the solenoid applied with copper wire, the difference in the magnetic field inside and outside the solenoid was small and the value of the magnetic field was also very small. On the other hand, in the case of a solenoid to which an enamel line is applied, the magnetic field difference between the solenoid and the outside is large, and the value of the magnetic field is also very large and constant.

However, in theory, as the number of winding the enamel wire increases, the long-term length of the circular solenoid coil increases, but in actual experiments, as the number of winding of the enamel wire increases, the resistance increases and the maximum current flowing decreases. Therefore, it may be necessary to adjust the appropriate number of turns of the enameled wire through the experiment.

Another embodiment of the present invention may further include an interferometer 400, and as shown in Figure 2, the interferometer 400 is configured in the form of a Mach-Zehnder interferometer to implement a more systematic polarization encryption system Can be.

In this case, the interferometer 400 may be incident to the polarization filter 200 to receive light in which polarization occurs.

The Mach-Zehnder interferometer is a two-beam interferometer, which is an important interferometer for measurement, and may be composed of two mirrors and two translucent winter beam splitters. By further installing the interferometer 400, the light polarized through the beam slitter may be divided into two paths to perform encryption or decryption.

More specifically, the interferometer 400 is a first beam splitter 410 is incident to the light emitted from the launch unit, reflecting a part of the incident light, and transmits the remaining unreflected light of the incident light ; A first mirror 430 positioned to reach the light reflected from the first beam splitter 410 and reflecting the light reflected from the first beam splitter 410; A second mirror 440 positioned at a position where light transmitted from the first beam splitter 410 reaches and reflecting light transmitted from the first beam splitter 410; And a position where light reflected from the first mirror 430 and light reflected from the second mirror 440 arrive together to transmit the light reflected from the first mirror 430, and the second And a second beam splitter 420 for reflecting light reflected from the mirror 440.

When the interferometer unit 400 is configured as a Mach-Zehnder interferometer as described above, the image is encrypted using a linear polarization orthogonal polarization and phase information of the image, and the two polarization components and the phase of the key image are orthogonal to the encrypted image. A method of restoring an image using information may be proposed.

Pixels of the image coder using the phase component and the polarization property have the same intensity distribution and have a polarization state, and thus there is a problem that duplication is impossible. However, when the present invention is applied, according to the magnetic field of the magnetic fluid 210. Using the property that the direction of polarization is fluid, one can apply a method of polarization in any real range.

According to another embodiment of the present invention, the second encrypted image may be reversely emitted to the polarization filter unit 200 to decode the second encrypted light.

As shown in the method flow diagram shown in FIG. 3, an embodiment of the present invention may be an encryption method of a sentence to which an encryption apparatus for a sentence having a polarization filter using the polarization phenomenon of the magnetic fluid 210 is applied. In this case, the sentence encryption apparatus is characterized in that the sentence encryption apparatus according to an embodiment of the present invention described above.

 More specifically, the step of imaging a sentence that is the target of the encryption; Launching the image by the cryptographic transmitter 100 with light; The light emitted from the encryption transmitter 100 is incident to the polarization filter 200; A polarization phenomenon occurs in the light incident on the polarization filter unit 200; And a method of encrypting a sentence to which an encryption device for a sentence having a polarization filter applied with the polarization phenomenon of the magnetic fluid 210 is applied, wherein the light having the polarization phenomenon is incident to the encryption receiver 300. It may be characterized by.

As described above, the encryption technique according to an embodiment of the present invention uses a polarization filter using the first fluid and the image according to the first encryption to form a sentence to be encrypted and the magnetic fluid 210. Second encryption to encrypt again.

More specifically, as shown in the method flow diagram shown in FIG. 4, the first encryption step of imaging the sentence to be encrypted includes: encrypting the sentence to be encrypted using a binary number; Filling the binary transformed number into a square matrix of 2ⁿⅹ2ⁿ; And forming the image by filling the portion of the square matrix with black number 1 and the portion with the number 0 with white color.

The first encryption process may be performed through an arbitrary process of converting a string to be encrypted into a string of numbers and converting the string into an image through a square matrix.

However, in the case of applying an encryption method based on the principle of Hill encryption instead of simply replacing one character with another character, two or more characters are simultaneously replaced with another character. Accordingly, unlike simple substitute ciphers that are easily decrypted by frequency analysis, ciphers that are unique to the Hill cipher are not easily decrypted by frequency analysis.

Hereinafter, a sentence composed of alphabets will be described as an example for the convenience of understanding the first encryption process based on the hill cipher. If each alphabet is numbered sequentially, the numbers 1 to 26 correspond to the letters A to Z, respectively. The sentence to be encrypted is received as a string and converted into a corresponding number, and the representation of the converted number is converted to binary.

After that, the k-k numbers are converted into binary numbers to form a first column matrix (kⅹ1 matrix), and based on the above-described hill cipher, a k 키 k matrix is used as an encryption key matrix. Specifies a square matrix. In this case, the remainder of the last split will be able to add numbers at random.

When the k k k matrix, which is the encryption key, is multiplied by the converted first column matrix, another second column matrix is obtained. Accordingly, when a mod operation is performed as 26, which is the total number of alphabets corresponding to the number column represented in the second column matrix, the number column represented in the second column matrix is a numeric string consisting of the remaining numbers divided by 26, respectively. Becomes

Then, after converting the numeric string shown in the second column matrix to binary method, 0 is added after the number of digits represented by the binary method. For example, in decimal notation, the number 5 is 101, and if you add three zeros by the number of digits, it is converted to 101000.

After the above process, the number is converted to the remainder by dividing the number by the number of two digits. Through this process, the sentence to be encrypted is converted into an encrypted numeric string.

A 2 × 2 ′ square matrix having a minimum size is configured to form the encrypted number string, and the 2 × 2 ′ square matrix is filled with the encrypted numeric string. The blanks of the 2ⁿⅹ2ⁿⅹ square matrix may be filled with 0 or 1 depending on any regularity.

Accordingly, for the 2 ⁿⅹ 2 정 square matrix of 0 and 1 filled with the encrypted string of numbers, the portion consisting of the number 1 is filled with black and the portion composed of the number 0 is filled with white. The string of numbers is converted to the first encrypted picture.

The first encryption process based on the hill cipher may be made easier by generating a program through coding such as Python using the algorithm for the above process.

The first encrypted picture is second-encrypted by the cryptographic transmitter 100 firing the first encrypted picture on the polarization filter unit 200, and the second encrypted light is transmitted to the cryptographic receiver. 300 is received.

Accordingly, the sentence encrypted twice in accordance with the application of the present invention can not only decrypt the encrypted sentence, but also third parties other than the user can not decrypt the sentence, the user can easily decrypt the encrypted sentence There is an advantage that it can be decrypted.

Since the polarization filter unit 200 is formed of the magnetic fluid 210, the polarization direction of the incident light can be flexibly adjusted by freely applying the direction of the magnetic field. As a result, it is possible to secure the diversity and stability of the generated ciphers when applying the embodiment of the present invention.

In addition, when the present invention is applied, since the ciphertext is divided and encrypted from the beginning, even if there is a problem in resolution, there is an advantage that it can be properly decrypted except in the vicinity of a part that is misread due to the problem of resolution.

The above description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is represented by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention.

100: password transmission unit:
200: polarization filter unit
210: magnetic fluid
220: electromagnet
300: password receiving unit
400: interferometer
410: first beam splitter
420: second beam splitter
430: first mirror
440: second mirror

Claims (14)

An encryption transmitter for emitting an encrypted image with light;
A polarization filter unit in which light emitted from the encryption transmitter is incident and secondly encrypted by polarization; And
And an encryption receiver configured to receive second-order encrypted light from the polarization filter unit.
The method of claim 1,
The polarization filter unit
Magnetic fluid prepared by melting ferromagnetic particles having a special arrangement under a magnetic field in the form of a colloid in a solvent; And
When the current is supplied to the conductive wire includes an electromagnet that forms a magnetic field around the conductive wire,
And a polarization phenomenon of light appearing in a magnetic fluid, wherein the polarization direction of the light incident on the polarization filter part can be flexibly adjusted according to the direction of the magnetic field.
The method of claim 2,
The electromagnet is
A circular solenoid made of a wire wound tightly and uniformly in a cylindrical shape; And
And a power source for supplying current to the conductive wires. An encryption and decryption apparatus using polarization of light appearing in a magnetic fluid.
The method of claim 3,
The circular solenoid is configured so that an enameled wire with a covering is wound around the surface of the conductive wire, but the end portion of the conductive wire is configured to remove the covering of the elastic wire so that a current can flow. And decryption apparatus using a polarization phenomenon.
The method of claim 1,
Further comprising an interferometer,
The interferometer part is a Mach-Zehnder interferometer, the light emitted from the encryption transmitter is encrypted or decrypted by dividing in two directions by the interferometer portion, characterized in that the encryption and decryption apparatus using light polarization phenomenon appearing in the magnetic fluid.
The method of claim 5,
And the interferometer part receives polarized light from the polarization filter part.
The method of claim 5,
The interferometer section
A first beam splitter which reflects a part of the light incident from the launch unit and transmits the unreflected remainder of the incident light;
A first mirror positioned at a position where light reflected from the first beam splitter arrives and reflecting light reflected from the first beam splitter;
A second mirror positioned at a position where light transmitted from the first beam splitter arrives and reflecting light transmitted from the first beam splitter; And
A second position positioned at a place where the light reflected from the first mirror and the light reflected from the second mirror reach together, transmitting a light reflected from the first mirror, and reflecting the light reflected from the second mirror An encryption and decryption apparatus using polarization of light appearing in a magnetic fluid, characterized in that it comprises a beam splitter.
The method of claim 1,
An apparatus for encrypting and decrypting light using a polarization phenomenon of a magnetic fluid, wherein the secondary light is emitted to the polarization filter unit in reverse to decode the secondary encrypted light.
The method of claim 1,
The encrypted image is composed of a square of 2ⁿⅹ2ⁿ consisting of numbers converted to binary, by converting the sentence to be encrypted to the binary number,
The 2ⁿⅹ2 빛 square consists of a number 1 filled with black, and the 2ⁿⅹ2ⁿ square matrix consists of a number 2 filled with white. Encryption and decryption apparatus using.
The method of claim 9,
Further comprising an interferometer,
The interferometer portion is a Mach-Zehnder interferometer, the light emitted from the encryption transmitter is divided into two directions by the interferometer portion is encrypted or decrypted using the polarization phenomenon of light appearing in a magnetic fluid.
The method of claim 10,
And the interferometer part receives light polarized from the polarization filter part.
The method of claim 10,
The interferometer section
A first beam splitter which reflects a part of the light incident from the launch unit and transmits the unreflected remainder of the incident light;
A first mirror positioned at a position where light reflected from the first beam splitter arrives and reflecting light reflected from the first beam splitter;
A second mirror positioned at a position where light transmitted from the first beam splitter arrives and reflecting light transmitted from the first beam splitter; And
A second position positioned at a place where the light reflected from the first mirror and the light reflected from the second mirror reach together, transmitting a light reflected from the first mirror, and reflecting the light reflected from the second mirror An encryption and decryption method using a polarization phenomenon of light appearing in a magnetic fluid, characterized in that it comprises a beam splitter.
The method of claim 9,
And a second polarized light projected to the polarization filter unit to decode the second encrypted light. The encryption and decryption method using the polarization phenomenon of light appearing in a magnetic fluid.
The method of claim 9,
Imaging the sentence by the subject of the cipher
Encrypting a sentence that is an object of the encryption by a binary number;
Filling the binary transformed number into a square matrix of 2ⁿⅹ2ⁿ; And
Encrypting the polarization phenomenon of light appearing in a magnetic fluid, comprising: forming the image by filling a black portion of the square matrix and a white portion of the square matrix with white; Decryption method.

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