KR20230046188A - Metaverse service server for providing metaverse service to provide avatars in a metaverse environment based on digital dna, and the operating method thereof - Google Patents

Abstract

Disclosed are a metaverse service server and operating method thereof. The present invention proposes a metaverse service server for providing a metaverse service which provides avatars in a metaverse environment based on digital DNA and an operating method thereof, so that members subscribed to the metaverse service can be supported to activate their own avatars in the metaverse environment.

Description

A metaverse service server and its operation method for providing a metaverse service that provides avatars in a metaverse environment based on digital DNA OPERATING METHOD THEREOF}

The present invention relates to a metaverse service server and its operating method for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA.

Metaverse is a compound word of 'meta', which means virtual and transcendence, and 'universe', which means world and universe, and means a three-dimensional virtual world linked to reality.

Recently, with the expansion of the 5G communication network capable of transmitting large amounts of information at high speed, various types of metaverse services that support life-type or game-type virtual worlds are appearing.

These metaverse services allow users to activate their avatars in the metaverse environment, so that users can conduct personal activities such as education and shopping through their avatars, or apply various digital items to their avatars. provides a function to Using these functions, users can obtain fun and satisfaction by performing desired activities in the metaverse environment without physical limitations or by applying various digital items to avatars.

On the other hand, since the data on the user's avatar may include important information such as the user's personal information, if the data on the avatar is exposed to others, it is possible to copy the user's avatar or abuse the user's personal information. Problems can arise.

In this regard, in order to prevent this problem, when creating an avatar of a member subscribed to the metaverse service, digital DNA for the member's avatar is issued and stored, and then, from the member's electronic terminal, When an activation command for a member's avatar is received, a digital DNA verification of the member's avatar is performed, thereby requiring research on technology for enhancing the security of data for the member's avatar.

The present invention provides a metaverse service server and its operating method for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA, so that members subscribed to the metaverse service, We want to support you to activate your own avatar in the environment.

A metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA according to an embodiment of the present invention provides information about each of a plurality of members subscribed to the metaverse service. Member identification information and a public key corresponding to a pre-issued private key for each of the plurality of members - the private key for each of the plurality of members is pre-stored in the electronic terminal of each member - are stored a first public key storage unit in which an n (n is a natural number equal to or greater than 2) dimensional age group characteristic vector indicating each of a plurality of preset age groups pre-shared with the electronic terminal of each of the plurality of members is recorded; A table, a second table in which n-dimensional hobby characteristic vectors indicating each of a plurality of preset hobbies are recorded, and a third table in which n-dimensional personality characteristic vectors indicating each of a plurality of preset personality types are recorded are stored. When a request command for creating an avatar usable in the metaverse service is received from the first electronic terminal of the first member, which is any one of the plurality of members, the table maintenance unit maintained by the above, after generating the first avatar, A generation event generating unit generating a digital DNA generation event for generating digital DNA enabling access to the first avatar, and when the digital DNA generation event occurs, to the first electronic terminal, the plurality of ages , Selection request for transmitting a first selection request message including content requesting selection of one age range, hobby, and personality type matched to the first member from among the plurality of hobbies and the plurality of personality types As a first age group, a first hobby, and a first personality type are selected from among the plurality of age groups, the plurality of hobbies, and the plurality of personality types by the first member, the first electronic member When information on the first age range, the first hobby, and the first personality type is received from the terminal, a first age range characteristic vector for the first age range is selected from the first table, and a first age range characteristic vector is selected from the second table. a feature vector selector for selecting a first hobby feature vector for the first hobby and selecting a first personality feature vector for the first personality type from the third table; the first age range feature vector; A feature matrix generator generating a first member feature matrix having a size of 3 x n by sequentially arranging the hobby feature vector and the first personality feature vector as row vectors, and when the first member feature matrix is generated, the first member feature After designating a matrix as the digital DNA for the first avatar, first member identification information for the first member, data for the first avatar, and the first member characteristic matrix are stored in an avatar database in correspondence with each other. After the processor, the first member identification information, the data for the first avatar, and the first member characteristic matrix are stored in the avatar database in correspondence with each other, an access request command for the metaverse service is issued from the first electronic terminal Upon reception, when an activation request command for the first avatar is received from the first electronic terminal in a state in which the metaverse environment according to the account of the first member is provided, digital DNA for the first avatar is verified. a verification event generation unit generating a digital DNA verification event for a digital DNA verification event, when the digital DNA verification event occurs, after verifying the first member identification information for the first member, a verification matrix having a size of n x n - the verification matrix is an inverse matrix is an existing matrix, randomly generates a first public key for the first member based on the first member identification information, extracts the first public key for the first member from the public key storage unit, and converts the verification matrix to the first public key. A feedback matrix requesting unit requesting transmission of a feedback matrix based on the verification matrix while encrypting and transmitting the encrypted verification matrix to the first electronic terminal; The first electronic terminal decrypts the encrypted verification matrix with the first private key for the first member stored in the first electronic terminal to restore the verification matrix, and restores the verification matrix stored in the first electronic terminal. After generating the first member characteristic matrix based on table 1, the second table, and the third table, a first feedback matrix is generated by matrix-multiplying the first member characteristic matrix and the verification matrix. , When the first feedback matrix is received from the first electronic terminal, after extracting the first member characteristic matrix stored in correspondence with the first member identification information from the avatar database, the verification is applied to the first feedback matrix. A feedback matrix checking unit that checks whether a result matrix generated when a matrix is multiplied by an inverse matrix matches the first member characteristic matrix, and if it is confirmed that the result matrix matches the first member characteristic matrix, the After completing verification of the digital DNA of the first avatar, data on the first avatar stored in correspondence to the first member identification information is extracted from the avatar database, and the data on the first avatar is extracted. Based on, an avatar activation unit for activating the first avatar in the metaverse environment according to the account of the first member.

In addition, a method of operating a metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA according to an embodiment of the present invention is a method for each of a plurality of members subscribed to the metaverse service. Member identification information for and a public key corresponding to a pre-issued private key for each of the plurality of members, wherein the private key for each of the plurality of members is pre-stored in the electronic terminal of each member. Maintaining a stored public key storage unit, an n (n is a natural number equal to or greater than 2) dimensional age group feature vector indicating each of a plurality of preset age groups pre-shared with electronic terminals of each of the plurality of members A first table in which is recorded, a second table in which n-dimensional hobby characteristic vectors indicating each of a plurality of preset hobbies are recorded, and n-dimensional personality characteristic vectors indicating each of a plurality of preset personality types are recorded Storing and maintaining a third table, generating a first avatar when an avatar generation request command usable in the metaverse service is received from a first electronic terminal of a first member who is one of the plurality of members and then generating a digital DNA generation event for generating digital DNA enabling access to the first avatar. When the digital DNA generation event occurs, the first electronic terminal sends information to the plurality of age groups. Transmitting a first selection request message including content requesting selection of one age range, hobby, and personality type matched to the first member from among the plurality of hobbies and the plurality of personality types; As a first age range, a first hobby, and a first personality type are selected from among the plurality of age groups, the plurality of hobbies, and the plurality of personality types by the first member, the first electronic terminal , When information on the first age range, the first hobby, and the first personality type is received, a first age range characteristic vector for the first age range is selected from the first table, and the first age range characteristic vector is selected from the second table. selecting a first hobby characteristic vector for one hobby, and selecting a first personality characteristic vector for the first personality type from the third table; generating a first member feature matrix having a size of 3 x n by sequentially arranging first personality feature vectors as row vectors; After designating as digital DNA, first member identification information for the first member, data for the first avatar, and the first member characteristic matrix are stored in an avatar database in correspondence with each other; the first member identification information; After the data for the first avatar and the first member characteristic matrix are stored in the avatar database in correspondence with each other, as an access request command for the metaverse service is received from the first electronic terminal, the first member Generating a digital DNA verification event for verifying digital DNA for the first avatar when an activation request command for the first avatar is received from the first electronic terminal in a state in which a metaverse environment according to the account is provided , When the digital DNA verification event occurs, after checking the first member identification information for the first member, a verification matrix having a size of n x n, wherein the verification matrix is a matrix in which an inverse matrix exists, is randomly generated, After extracting the first public key for the first member from the public key storage unit based on the first member identification information, the verification matrix is encrypted with the first public key, and the encrypted information is transmitted to the first electronic terminal. Requesting transmission of a feedback matrix based on the verification matrix while transmitting the verification matrix; In response to the request for transmission of the feedback matrix, the first electronic terminal transmits the encrypted verification matrix to the first electronic terminal. The verification matrix is restored by decoding with a first private key for the first member stored in the terminal, and based on the first table, the second table, and the third table stored in the first electronic terminal , When the first feedback matrix is received from the first electronic terminal as the first feedback matrix is generated by matrix-multiplying the first member characteristic matrix and the verification matrix after generating the first member characteristic matrix. , After extracting the first member characteristic matrix stored corresponding to the first member identification information from the avatar database, a result matrix generated when the first feedback matrix is multiplied by an inverse matrix for the verification matrix, Checking whether the result matrix matches the first member characteristic matrix, and if it is confirmed that the result matrix matches the first member characteristic matrix, after completing verification of the digital DNA of the first avatar, the avatar database Extracts data on the first avatar stored in correspondence with the first member identification information, and based on the data on the first avatar, in the metaverse environment according to the account of the first member, the and activating the first avatar.

The present invention provides a metaverse service server and its operating method for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA, so that members subscribed to the metaverse service, You can support activating your own avatar in the environment.

1 is a diagram showing the structure of a metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA according to an embodiment of the present invention.
2 is a flowchart illustrating a method of operating a metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. This description is not intended to limit the present invention to specific embodiments, but should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. While describing each drawing, similar reference numerals have been used for similar components, and unless otherwise defined, all terms used in this specification, including technical or scientific terms, are common knowledge in the art to which the present invention belongs. has the same meaning as commonly understood by the person who has it.

In this document, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated. In addition, in various embodiments of the present invention, each component, functional block, or means may be composed of one or more sub-components, and the electrical, electronic, and mechanical functions performed by each component are electronic It may be implemented with various known elements or mechanical elements such as circuits, integrated circuits, ASICs (Application Specific Integrated Circuits), and may be implemented separately or two or more may be integrated into one.

On the other hand, the blocks of the accompanying block diagram or the steps of the flowchart are computer program instructions that perform designated functions by being loaded into a processor or memory of a device capable of data processing, such as a general-purpose computer, a special purpose computer, a portable notebook computer, and a network computer. can be interpreted as meaning Since these computer program instructions may be stored in a memory included in a computer device or in a computer readable memory, the functions described in blocks of a block diagram or steps of a flowchart are produced as a product containing instruction means for performing them. It could be. Further, each block or each step may represent a module, segment or portion of code that includes one or more executable instructions for executing specified logical function(s). Also, it should be noted that in some alternative embodiments, functions mentioned in blocks or steps may be executed out of a predetermined order. For example, two blocks or steps shown in succession may be performed substantially simultaneously or in reverse order, and in some cases, some blocks or steps may be omitted.

1 is a diagram showing the structure of a metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA according to an embodiment of the present invention.

1, the metaverse service server 110 according to an embodiment of the present invention includes a public key storage unit 111, a table maintenance unit 112, a generation event generation unit 113, and a selection request unit 114. ), feature vector selector 115, feature matrix generator 116, storage processor 117, verification event generator 118, feedback matrix requester 119, feedback matrix checker 120, and avatar activation Includes section 121.

The public key storage unit 111 includes member identification information for each of a plurality of members subscribed to the metaverse service, and a pre-issued private key for each of the plurality of members (personal information for each of the plurality of members). The public key corresponding to the key is pre-stored in the electronic terminal of each member) is stored.

Here, the member identification information refers to unique information for identifying each member, such as a resident registration number, a mobile phone number, and an ID of each member.

For example, in the public key storage unit 111, as shown in Table 1 below, member identification information for each of a plurality of members subscribed to the metaverse service and a pre-issued private key for each of the plurality of members A corresponding public key may be stored.

multiple members Member identification information public key Member 1 Member identification information 1 public key 1 member 2 Member identification information 2 public key 2 member 3 Member identification information 3 public key 3 ... ... ...

The table maintenance unit 112 stores an n (n is a natural number equal to or greater than 2) dimensional age group feature vector indicating each of a plurality of preset age groups that are previously shared with the electronic terminal of each of the plurality of members. Table 1, a second table in which n-dimensional hobby characteristic vectors indicating each of a plurality of preset hobbies are recorded, and a third table in which n-dimensional personality characteristic vectors indicating each of a plurality of preset personality types are recorded are recorded. save and keep

For example, when n is '4', the table holding unit 112 stores a first table such as Table 2 below, a second table such as Table 3 below, and a third table such as Table 4 below. can keep

multiple ages '4' dimension age group feature vector age 1 [a ₁ a ₂ a ₃ a ₄ ] age 2 [a ₅ a ₆ a ₇ a ₈ ] ages 3 [a ₉ a ₁₀ a ₁₁ a ₁₂ ] age 4 [a ₁₃ a ₁₄ a ₁₅ a ₁₆ ]

multiple hobbies Hobby feature vector in '4' dimension hobby 1 [b ₁ b ₂ b ₃ b ₄ ] hobby 2 [b ₅ b ₆ b ₇ b ₈ ] hobby 3 [b ₉ b ₁₀ b ₁₁ b ₁₂ ] hobby 4 [b ₁₃ b ₁₄ b ₁₅ b ₁₆ ]

multiple personality types The '4' dimension personality type trait vector personality type 1 [c ₁ c ₂ c ₃ c ₄ ] personality type 2 [c ₅ c ₆ c ₇ c ₈ ] personality type 3 [c ₉ c ₁₀ c ₁₁ c ₁₂ ] personality type 4 [c ₁₃ c ₁₄ c ₁₅ c ₁₆ ]

The generation event generating unit 113 receives a request command for creating an avatar usable in the metaverse service from the first electronic terminal 151 of the first member 141, which is one of the plurality of members, After generating 1 avatar, a digital DNA generation event for generating digital DNA enabling access to the first avatar is generated.

When the digital DNA generation event is generated by the creation event generating unit 113, the selection request unit 114 sends the plurality of ages, the plurality of hobbies, and the plurality of personalities to the first electronic terminal 151. Among the types, a first selection request message including content requesting selection of one age range, hobby, and personality type matched with the first member 141 is transmitted.

The feature vector selection unit 115 determines, by the first member 141, a first age group, a first hobby, and a first personality type among the plurality of age groups, the plurality of hobbies, and the plurality of personality types. According to the selection, when information on the first age range, the first hobby, and the first personality type is received from the first electronic terminal 151, the first age range characteristic for the first age range is obtained from the first table. A vector is selected, a first hobby feature vector for the first hobby is selected from the second table, and a first personality feature vector for the first personality type is selected from the third table.

The feature matrix generator 116 sequentially arranges the first age range feature vector, the first hobby feature vector, and the first personality feature vector as row vectors to generate a first member feature matrix having a size of 3 x n.

When the first member feature matrix is generated by the feature matrix generator 116, the storage processing unit 117 designates the first member feature matrix as digital DNA for the first avatar, and then stores the first member 141 The first member identification information for the first avatar, the data for the first avatar, and the first member characteristic matrix are stored in the avatar database 132 in correspondence with each other.

The verification event generating unit 118 stores the first member identification information, the first avatar data, and the first member characteristic matrix in the avatar database 132 by the storage processing unit 117 and stores them in the avatar database 132. 1 As an access request command for the metaverse service is received from the electronic terminal 151, in a state in which a metaverse environment according to the account of the first member 141 is provided, the first electronic terminal 151 When an activation request command for an avatar is received, a digital DNA verification event for verifying the digital DNA of the first avatar is generated.

When the digital DNA verification event is generated by the verification event generating unit 118, the feedback matrix requester 119 checks the first member identification information for the first member 141, and then checks the n x n verification matrix ( The verification matrix is a matrix in which an inverse matrix exists) is randomly generated, and a first public key for the first member 141 is extracted from the public key storage unit 111 based on the first member identification information. , Encrypts the verification matrix with the first public key, transmits the encrypted verification matrix to the first electronic terminal 151, and requests transmission of a feedback matrix based on the verification matrix.

Hereinafter, a generation event generator 113, a selection request unit 114, a feature vector selector 115, a feature matrix generator 116, a storage processor 117, a verification event generator 118, and a feedback matrix The operation of the requesting unit 119 will be described in detail by way of example.

First, let n be '4', and from the first electronic terminal 151 of 'Member 1 (141)', which is one of the plurality of members, to the metaverse service server 110, it is used in the metaverse service. Assume that a command for requesting creation of a possible avatar is received.

Then, after generating 'Avatar 1', the generation event generation unit 113 may generate a digital DNA generation event for generating digital DNA enabling access to 'Avatar 1'. At this time, according to one embodiment of the present invention, the generation event generation unit 113, in order to generate 'Avatar 1', from the first electronic terminal 151, the face shape and skin color selected by 'Member 1 (141)' After receiving selection information about the appearance of the avatar, such as , hair shape, body shape, etc., 'Avatar 1' usable in the metaverse service can be created based on this selection information.

In this way, when the digital DNA generation event occurs, the selection requesting unit 114 sends to the first electronic terminal 151, 'Member 1' among the plurality of ages, the plurality of hobbies, and the plurality of personality types. A first selection request message including contents requesting selection of any one age range, hobby, and personality type matched with '(141)' may be transmitted.

At this time, 'Member 1 (141)' confirming the first selection request message selects 'Age 2, Hobby 1, Personality Type 4' among the plurality of age groups, the plurality of hobbies, and the plurality of personality types. Suppose that information about 'age 2, hobby 1, personality type 4' is received from the first electronic terminal 151 in the metaverse service server 110 by selecting .

Then, the feature vector selection unit 115 may select '[a ₅ a ₆ a ₇ a ₈ ]' as a first age group feature vector for 'age group 2' from the first table as shown in Table 2 above, From the second table shown in Table 3 above, '[b ₁ b ₂ b ₃ b ₄ ]' can be selected as the first hobby feature vector for 'Hobby 1', and from the third table shown in Table 4 above, As the first personality vector for 'personality type 4', '[c ₁₃ c ₁₄ c ₁₅ c ₁₆ ]' may be selected.

'과 같이 생성할 수 있다.Then, the feature matrix generator 116 converts '[a ₅ a ₆ a ₇ a ₈ ]' as the first age group feature vector and '[b ₁ b ₂ b ₃ b ₄ ]' as the first hobby feature vector. and '[c ₁₃ c ₁₄ c ₁₅ c ₁₆ ]', the first personality feature vector, is sequentially arranged as row vectors to form a first member feature matrix (A) having a size of '3 x 4'.

' can be created.

'을 '아바타 1'에 대한 디지털 DNA로 지정한 후, 하기의 표 5와 같이, '회원 1(141)'에 대한 제1 회원 식별 정보인 '회원 식별 정보 1', '아바타 1'에 대한 데이터 및 상기 제1 회원 특성 행렬(A)인 '

'을 서로 대응시켜 아바타 데이터베이스(132)에 저장할 수 있다.Then, the storage processing unit 117 stores the first member characteristic matrix A '

After designating ' as digital DNA for 'Avatar 1', data for 'Member Identification Information 1' and 'Avatar 1', which are the first member identification information for 'Member 1 (141)', as shown in Table 5 below. and the first member feature matrix (A) '

' may be stored in the avatar database 132 by corresponding to each other.

Member identification information data about avatars member attribute matrix Member identification information 1 Data on 'Avatar 1'

After that, as the metaverse service server 110 receives an access request command for the metaverse service from the first electronic terminal 151, a metaverse environment according to the account of 'Member 1 (141)' is provided. In this state, suppose that the metaverse service server 110 receives an activation request command for 'Avatar 1' from the first electronic terminal 151 .

At this time, the verification event generating unit 118 may generate a digital DNA verification event for verifying the digital DNA of 'Avatar 1'.

'과 같이 랜덤하게 생성할 수 있다.Then, the feedback matrix requesting unit 119 checks the 'member identification information 1', which is the first member identification information for 'member 1 (141)', and then converts the '4 x 4' size verification matrix R to 'member identification information 1'.

' can be randomly generated.

Then, the feedback matrix requesting unit 119 uses the 'member identification information 1' as the first public key for 'member 1 (141)' from the public key storage unit 111 as shown in Table 1 above. After extracting key 1', the verification matrix is encrypted with 'public key 1', and the encrypted verification matrix is transmitted to the first electronic terminal 151 while transmitting a feedback matrix based on the verification matrix. can request

At this time, according to one embodiment of the present invention, the first electronic terminal 151 stores the first private key for the first member 141, the first table, the second table, and the third table in memory. stored, and when the encrypted verification matrix is received from the metaverse service server 110 and a transmission request for the feedback matrix is received, the plurality of age groups, the plurality of hobbies, and the plurality of personality types A second selection request message including contents requesting selection of an age range, hobby, and personality type matched with the first member 141 of the above is displayed on the screen, and the first member selects the first age range, the above When a command for selecting a first hobby and the first personality type is applied, a first age range characteristic vector for the first age group is selected from the first table, and a first age group characteristic vector for the first hobby is selected from the second table. A hobby characteristic vector is selected, and after selecting a first personality characteristic vector for the first personality type from the third table, the first age range characteristic vector, the first hobby characteristic vector, and the first personality characteristic vector are sequentially entered. is arranged as a row vector to generate the first member feature matrix, decrypt the encrypted verification matrix with the first private key, and multiply the first member feature matrix and the verification matrix by a matrix to obtain the first feedback A matrix may be generated and transmitted to the metaverse service server 110.

For example, on the memory of the first electronic terminal 151, 'Private Key 1', which is the first private key for 'Member 1 141', the first table as shown in Table 2 above, and the first table as shown in Table 3 above. Table 2 and the third table such as Table 4 may be stored.

In this situation, as in the above-described example, the feedback matrix requesting unit 119 transmits the encrypted verification matrix to the first electronic terminal 151 while requesting transmission of a feedback matrix based on the verification matrix. Accordingly, suppose that the first electronic terminal 151 receives a transmission request for the feedback matrix while the encrypted verification matrix is received from the metaverse service server 110.

Then, the first electronic terminal 151 requests selection of an age range, hobby, and personality type matched to 'Member 1 (141)' among the plurality of age groups, the plurality of hobbies, and the plurality of personality types. A second selection request message including content may be displayed on the screen.

At this time, when it is assumed that a selection command for 'age group 2, hobby 1, and personality type 4' is applied to the first electronic terminal 151 by 'member 1 (141)', the first electronic terminal 151 From the first table shown in Table 2, '[a ₅ a ₆ a ₇ a ₈ ]' can be selected as the first age group feature vector for 'age group 2', and from the second table shown in Table 3, ''[b ₁ b ₂ b ₃ b ₄ ]' may be selected as the first hobby characteristic vector for 'hobby 1', and from the third table as shown in Table 4 above, the first personality characteristic vector for 'personality type 4' , '[c ₁₃ c ₁₄ c ₁₅ c ₁₆ ]' can be selected.

'과 같이 생성할 수 있다.Then, the first electronic terminal 151 transmits '[a ₅ a ₆ a ₇ a ₈ ]' as the first age group characteristic vector and '[b ₁ b ₂ b ₃ b ₄ ]' as the first hobby characteristic vector. and '[c ₁₃ c ₁₄ c ₁₅ c ₁₆ ]', the first personality feature vector, is sequentially arranged as row vectors, so that the first member feature matrix (A) is '

' can be created.

'이 '공개키 1'로 암호화되어 생성된 것이고, '개인키 1'은 '공개키 1'에 대응되는 개인키이므로, 제1 전자 단말(151)은 암호화된 상기 검증 행렬(R)을 '개인키 1'로 복호화함으로써, 상기 검증 행렬(R)인 '

'을 정상적으로 복원할 수 있다.After that, the first electronic terminal 151 can decrypt the encrypted verification matrix with 'private key 1'. At this time, the encrypted verification matrix R is the verification matrix R '

'This is encrypted and generated with 'Public Key 1', and 'Private Key 1' is a private key corresponding to 'Public Key 1', so the first electronic terminal 151 converts the encrypted verification matrix R to ' By decrypting with the private key 1', the verification matrix R '

' can be restored normally.

Then, the first electronic terminal 151 generates a first feedback matrix F by matrix multiplication of the first member characteristic matrix A and the verification matrix R, as shown in Equation 1 below, It can be transmitted to the metaverse service server 110.

In this way, in response to the transmission request of the feedback matrix, the first electronic terminal 151 decrypts the encrypted verification matrix with the first private key to restore the verification matrix, and stores the verification matrix in the first electronic terminal 151. After generating the first member characteristic matrix based on the first table, the second table, and the third table, the first feedback matrix is multiplied by the first member characteristic matrix and the validation matrix. As the matrix is generated, when the first feedback matrix is received from the first electronic terminal 151, the feedback matrix checking unit 120 corresponds to the first member identification information from the avatar database 132. After extracting the first member feature matrix, it is checked whether a resultant matrix generated when the first feedback matrix is multiplied by an inverse matrix for the verification matrix matches the first member feature matrix.

The avatar activator 121, when it is confirmed by the feedback matrix checker 120 that the result matrix matches the first member characteristic matrix, completes verification of the digital DNA of the first avatar, and then completes verification of the digital DNA of the first avatar. Data on the first avatar stored in correspondence to the first member identification information is extracted from the database 132, and based on the data on the first avatar, according to the account of the first member 141 In the metaverse environment, the first avatar is activated.

Hereinafter, operations of the feedback matrix checking unit 120 and the avatar activating unit 121 will be described in detail by way of example.

First, as in the above example, as the first electronic terminal 151 generates the first feedback matrix (F) and transmits it to the metaverse service server 110, the first feedback matrix F is transmitted to the metaverse service server 110. Assume that the feedback matrix F is received.

'을 추출한 후, 하기의 수학식 2에 따라, 상기 제1 피드백 행렬(F)에 상기 검증 행렬에 대한 역행렬(R^-1)을 곱하였을 때 생성되는 결과 행렬(B)이, 상기 제1 회원 특성 행렬(A)과 일치하는지 여부를 확인할 수 있다.Then, the feedback matrix checking unit 120 corresponds to the 'member identification information 1' from the avatar database 132 and stores the first member characteristic matrix 'A'

After extracting ', the resulting matrix (B) generated when the first feedback matrix (F) is multiplied by the inverse matrix (R ^-1 ) for the verification matrix according to Equation 2 below, is the first member It can be checked whether it matches the characteristic matrix (A).

As a result, when it is confirmed that the result matrix (B) matches the first member characteristic matrix (A), the avatar activator 121 completes verification of digital DNA for 'Avatar 1' and then , Data on 'Avatar 1' stored in correspondence to 'Member identification information 1' is extracted from the avatar database 132, and based on the data on 'Avatar 1', 'Member 1 (141)' In the metaverse environment according to the account, 'Avatar 1' can be activated.

At this time, according to one embodiment of the present invention, the metaverse service server 110 further includes a data extraction unit 122, an image transmission unit 123, a push message transmission unit 124 and a friend addition processing unit 125. can do.

After the first avatar is activated in the metaverse environment according to the account of the first member 141 by the avatar activation unit 121, the data extraction unit 122 receives a friend recommendation request command from the first electronic terminal 151. is received, it is checked whether there is a member characteristic matrix matching the first member characteristic matrix among the member characteristic matrices stored in the avatar database 132, and the member characteristic matrix stored in the avatar database 132 exists. If it is confirmed that there is a member characteristic matrix for at least one member as a member characteristic matrix matching the first member characteristic matrix among the matrices, member identification for each of the at least one member is obtained from the avatar database 132. Information and data on the avatar of each of the at least one member are extracted.

The image transmission unit 123 generates a preview image of each avatar of the at least one member based on the data of the avatar of each of the at least one member, and then, to the first electronic terminal 151, A preview image of each avatar of at least one member is transmitted.

The push message transmission unit 124 transmits the preview image of each avatar of the at least one member to the first electronic terminal 151 by the image transmission unit 123, and then sends the message from the first electronic terminal 151. , When a friend addition request command for the second member 142, which is any one of the at least one member, is received, based on the data on the first avatar, the first avatar of the first member 141 After generating the preview image, second member identification information for the second member 142 is checked, and based on the second member identification information, the second electronic terminal 152 of the second member 142 is sent. , A push message containing an inquiry about whether to accept the friend request of the first member 141 is transmitted while the preview image of the first avatar is transmitted.

After the push message is transmitted to the second electronic terminal 152 by the push message transmission unit 124, the friend addition processing unit 125 sends a friend request of the first member 141 from the second electronic terminal 152. When a response message instructing acceptance is received, a friend list field corresponding to the first member identification information is created in the avatar database 132, and then the second member identification information is stored in the friend list field. , the second member 142 is added to the friend list of the first member 141 .

Hereinafter, operations of the data extraction unit 122, the image transmission unit 123, the push message transmission unit 124, and the friend addition processing unit 125 will be described in detail, for example.

First, as in the above example, it is assumed that 'Avatar 1' is activated in the metaverse environment according to the account of 'Member 1 (141)' by the avatar activation unit 121, and thereafter, the metaverse service server 110 Assume that a friend recommendation request command is received from the first electronic terminal 151 .

' 과 일치하는 회원 특성 행렬이 존재하는지 여부를 확인할 수 있다.Then, the data extractor 122 selects 'the first member characteristic matrix A' among the member characteristic matrices stored in the avatar database 132.

It is possible to check whether a member attribute matrix matching ' exists.

As a result, it is determined that among the member characteristic matrices stored in the avatar database 132, member characteristic matrices for 'Member 2 and Member 5' exist as member characteristic matrices matching the first member characteristic matrix (A). Assume it is confirmed.

Then, the data extractor 122 may extract member identification information for each of 'Member 2 and Member 5' and data for each avatar of 'Member 2 and Member 5' from the avatar database 132 .

Then, the image transmission unit 123 generates a preview image for each avatar of 'Member 2 and Member 5' based on the data of each avatar of 'Member 2 and Member 5', The terminal 151 may transmit preview images of avatars of 'Member 2 and Member 5' respectively.

After that, suppose that the metaverse service server 110 receives a friend add request command for 'member 2 (142)' from the first electronic terminal 151.

Then, the push message transmission unit 124 may generate a preview image for 'Avatar 1', which is the avatar of 'Member 1 (141)', based on the data on 'Avatar 1'.

Then, the push message transmitter 124 checks 'member identification information 2', which is the second member identification information of 'member 2 (142)', and based on 'member identification information 2', 'member 2 (142)' )' to the second electronic terminal 152, while sending a preview image of 'Avatar 1', a push message containing a query whether to accept the friend request of 'Member 1 (141)' is sent. can transmit

At this time, as 'Member 2 (142)' confirming the push message applies a response command instructing the second electronic terminal 152 to accept the friend request of 'Member 1 (141)', the metaverse service Assume that the server 110 receives a response message from the second electronic terminal 152, instructing to accept the friend request of 'Member 1 (141)'.

Then, as shown in Table 6 below, the friend addition processing unit 125 creates a friend list field corresponding to 'member identification information 1' in the avatar database 132, and then displays 'member identification information 2' in the friend list field. ', it is possible to add 'Member 2 (142)' to the friend list of 'Member 1 (141)'.

Member identification information data about avatars member attribute matrix friends list Member identification information 1 Data on 'Avatar 1'

Member identification information 2

At this time, according to one embodiment of the present invention, when the metaverse service server 110 transmits a preview image for the avatar of each of the at least one member to the first electronic terminal 151, each of the at least one member In order to prevent the preview image of the avatar from being leaked to the outside, a configuration for encrypting and transmitting the preview image of the avatar of each of the at least one member to the first electronic terminal 151 may be included. .

In this regard, according to one embodiment of the present invention, the image transmitter 123 may include an image generator 126, a hash value generator 127, and a transmission processor 128.

The image generating unit 126 generates a preview image of the avatar of each of the at least one member based on the avatar data of each of the at least one member.

The hash value generator 127, when a preview image of each avatar of the at least one member is generated by the image generator 126, has n diagonal elements corresponding to the main diagonal of the verification matrix. are extracted, and concatenated data is generated by concatenating the n diagonal elements, and then the concatenated data is applied as an input to a preset hash function to generate a first hash value.

When the first hash value is generated by the hash value generator 127, the transmission processing unit 128 encrypts the preview image of each avatar of the at least one member with the first hash value, and then first To the electronic terminal 151, the encrypted preview image of each avatar of the at least one member and the hash function are transmitted.

At this time, when the first electronic terminal 151 receives the encrypted preview image of each avatar of the at least one member and the hash function, extracts the n diagonal elements corresponding to the main diagonal of the verification matrix, , After generating the concatenated data by concatenating the n diagonal elements, generating the first hash value by applying the concatenated data as an input to the hash function, and based on the first hash value, the encrypted By decoding the preview image of the avatar of each of the at least one member, the preview image of the avatar of each of the at least one member may be restored.

Hereinafter, operations of the image generating unit 126, the hash value generating unit 127, the transmission processing unit 128, and the first electronic terminal 151 will be described in detail, for example.

First, as in the above-described example, from the avatar database 132 by the data extractor 122, member identification information for each of 'Member 2 and Member 5' and information for each avatar of 'Member 2 and Member 5' Assume that the data has been extracted.

Then, the image generator 126 may generate a preview image for each avatar of 'member 2 and member 5' based on the avatar data for each of 'member 2 and member 5'.

'의 주대각선에 해당되는 '4'개의 성분들인 'r_1, r₆, r₁₁, r₁₆'을 추출하고, 'r_1, r₆, r₁₁, r₁₆'을 연접함으로써, 연접 데이터를 생성할 수 있다.Then, the hash value generating unit 127 is the verification matrix R '

By extracting 'r _1, r ₆ , r ₁₁ , r ₁₆ ', which are '4' components corresponding to the main diagonal of ', and concatenating 'r _1, r ₆ , r ₁₁ , r ₁₆ ', concatenated data can create

After that, the hash value generating unit 127 may generate 'hash value 1' by applying the concatenated data as an input to a preset hash function.

Then, the transmission processing unit 128 encrypts the preview image of each avatar of 'member 2 and member 5' with 'hash value 1', and then sends the encrypted 'member 2 and member 2' to the first electronic terminal 151. 5' A preview image for each avatar and the hash function may be transmitted.

'의 주대각선에 해당되는 상기 '4'개의 성분들인 'r_1, r₆, r₁₁, r₁₆'을 추출하고, 'r_1, r₆, r₁₁, r₁₆'을 연접함으로써, 상기 연접 데이터를 생성할 수 있다.Accordingly, when the preview image for each of the encrypted avatars of 'Member 2 and Member 5' and the hash function are received by the first electronic terminal 151, the first electronic terminal 151 calculates the verification matrix R person '

By extracting 'r _1, r ₆ , r ₁₁ , r ₁₆ ', which are the '4' components corresponding to the main diagonal of ', and concatenating 'r _1, r ₆ , r ₁₁ , r ₁₆ ', the concatenation data can be generated.

Then, the first electronic terminal 151 may generate 'hash value 1' by applying the concatenated data as an input to the hash function.

At this time, since the preview image for each of the encrypted avatars of 'Member 2 and Member 5' is generated by encrypting the preview image for each avatar of 'Member 2 and Member 5' with 'hash value 1', the first The electronic terminal 151 decrypts the encrypted preview image of each avatar of 'Member 2 and Member 5' based on 'hash value 1', thereby previewing the avatar of 'Member 2 and Member 5' respectively. The image can be restored normally.

According to one embodiment of the present invention, the metaverse service server 110 may further include a storage request unit 129, an NFT generation unit 130 and a registration processing unit 131.

When the storage request unit 129 receives a command for generating a Non-Fungible Token (NFT) for the first avatar from the first electronic terminal 151, the storage request unit 129 transfers the data to a preset cloud storage server 160 for data storage. , While transmitting data on the first avatar, it is requested to store the data on the first avatar.

As the data for the first avatar is stored in the cloud storage server 160, the NFT generator 130 provides information about a first storage path in which the data for the first avatar is stored from the cloud storage server 160. When received, a first NFT including the first member identification information as information on the first storage path and owner information on the first avatar is generated.

When the first NFT is generated by the NFT generation unit 130, the registration processing unit 131 registers the first NFT in the blockchain network 100 pre-set for NFT registration.

Hereinafter, operations of the storage request unit 129, the NFT generation unit 130, and the registration processing unit 131 will be described in detail, for example.

First, assume that the metaverse service server 110 receives an NFT creation request command for 'Avatar 1' from the first electronic terminal 151.

Then, the storage request unit 129 may request storage of the data on 'Avatar 1' while transmitting the data on 'Avatar 1' to the pre-set cloud storage server 160 for data storage.

Correspondingly, as the data for 'Avatar 1' is stored in the cloud storage server 160, the data for 'Avatar 1' is stored in the metaverse service server 110 from the cloud storage server 160. Assume that information about route 1' is received.

Then, the NFT generator 130 may generate 'NFT 1' including 'member identification information 1' as information on 'storage path 1' and owner information on 'avatar 1'.

Then, the registration processing unit 131 may register 'NFT 1' in the blockchain network 100 pre-set for NFT registration.

At this time, according to one embodiment of the present invention, the registration processing unit 131 generates a transaction including 'NFT 1' in order to register 'NFT 1' in the blockchain network 100, and then executes the transaction. It can propagate to the blockchain network 100. Then, any one of the plurality of nodes 101, 102, 103, 104, 105, and 106 constituting the blockchain network 100 generates a block including the transaction, and the plurality of nodes ( 101, 102, 103, 104, 105, 106). Accordingly, when the block is received by the plurality of nodes 101, 102, 103, 104, 105, and 106, the plurality of nodes 101, 102, 103, 104, 105, and 106 are stored in each node 'NFT 1' can be shared by chaining the block to the blockchain data based on the previous block chained to the existing blockchain data.

In this way, the metaverse service server 110 according to the present invention allows members to issue NFTs containing ownership information for their avatars, so that each member can use the NFTs to prove ownership of their avatars. It can be supported so that each member can sell their avatar to others using NFT.

According to one embodiment of the present invention, the metaverse service server 110 may include a configuration for providing a function for enabling marriage between avatars of each of the plurality of members, in addition to the configuration described above. In addition, the metaverse service server 110 of the present invention may provide a function of generating child avatars between avatars of each of the plurality of members. Through this, the metaverse service server 110 can provide a function for configuring a virtual family in the metaverse environment according to the account of each of the plurality of members.

2 is a flowchart illustrating a method of operating a metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA according to an embodiment of the present invention.

In step S210, member identification information for each of a plurality of members subscribed to the metaverse service, and a pre-issued private key for each of the plurality of members (the private key for each of the plurality of members, A public key storage unit in which a public key corresponding to each member's electronic terminal is stored in advance is maintained.

In step S220, a first table in which an n (n is a natural number equal to or greater than 2) dimensional age group characteristic vector indicating each of a plurality of preset age groups pre-shared with electronic terminals of each of the plurality of members is recorded. A second table in which n-dimensional hobby characteristic vectors indicating each of a plurality of preset hobbies are recorded and a third table in which n-dimensional personality characteristic vectors indicating each of a plurality of preset personality types are recorded are stored, keep

In step S230, when an avatar generation request command usable in the metaverse service is received from a first electronic terminal of a first member who is one of the plurality of members, a first avatar is generated, and then the first avatar is generated. 1 Generate a digital DNA creation event to create digital DNA that enables access to the avatar.

In step S240, when the digital DNA generation event occurs, one of the plurality of ages, the plurality of hobbies, and the plurality of personality types matched with the first member is sent to the first electronic terminal. A first selection request message including content requesting selection of the age group, hobby, and personality type of the user is transmitted.

In step S250, as a first age group, a first hobby, and a first personality type are selected from among the plurality of age groups, the plurality of hobbies, and the plurality of personality types, the first member selects the When information on the first age range, the first hobby, and the first personality type is received from the first electronic terminal, a first age range characteristic vector for the first age range is selected from the first table, and the first age range characteristic vector is selected. A first hobby feature vector for the first hobby is selected from table 2, and a first personality feature vector for the first personality type is selected from the third table.

In step S260, a first member feature matrix having a size of 3 x n is generated by sequentially arranging the first age range feature vector, the first hobby feature vector, and the first personality feature vector as row vectors.

In step S270, when the first member characteristic matrix is generated, after designating the first member characteristic matrix as digital DNA for the first avatar, first member identification information for the first member, the first avatar The data for and the first member characteristic matrix are stored in the avatar database in correspondence with each other.

In step S280, after the first member identification information, the data for the first avatar, and the first member characteristic matrix are stored in the avatar database in correspondence with each other, the first electronic terminal accesses the metaverse service. As the request command is received, when an activation request command for the first avatar is received from the first electronic terminal in a state in which the metaverse environment according to the account of the first member is provided, the digital DNA for the first avatar Generates a digital DNA verification event for verification of

In step S290, when the digital DNA verification event occurs, after checking the first member identification information for the first member, a verification matrix having a size of n x n (the verification matrix is a matrix in which an inverse matrix exists) is randomly generated. After extracting the first public key for the first member from the public key storage unit based on the first member identification information, encrypting the verification matrix with the first public key, the first electronic terminal , requesting transmission of a feedback matrix based on the verification matrix while transmitting the encrypted verification matrix.

In step S300, in response to the transmission request of the feedback matrix, the first electronic terminal decrypts the encrypted verification matrix with a first private key for the first member stored in the first electronic terminal, After restoring the verification matrix and generating the first member characteristic matrix based on the first table, the second table, and the third table stored in the first electronic terminal, the first member characteristic matrix As a first feedback matrix is generated by matrix multiplying the verification matrix and the verification matrix, when the first feedback matrix is received from the first electronic terminal, the stored information corresponding to the first member identification information from the avatar database After extracting the first member feature matrix, it is checked whether a resultant matrix generated when the first feedback matrix is multiplied by an inverse matrix for the verification matrix matches the first member feature matrix.

In step S310, if it is confirmed that the result matrix matches the first member characteristic matrix, digital DNA verification of the first avatar is completed, and then the first member identification information is obtained from the avatar database. Correspondingly stored data on the first avatar is extracted, and based on the data on the first avatar, the first avatar is activated in the metaverse environment according to the account of the first member.

At this time, according to an embodiment of the present invention, the first electronic terminal stores the first private key, the first table, the second table, and the third table in a memory, and the metaverse service server When the encrypted verification matrix is received and a request for transmission of the feedback matrix is received, an age range and a hobby matched with the first member among the plurality of age groups, the plurality of hobbies, and the plurality of personality types. and a second selection request message including content requesting selection of a personality type is displayed on a screen, and a selection command for the first age group, the first hobby, and the first personality type is provided by the first member. is applied, a first age range characteristic vector for the first age group is selected from the first table, a first hobby characteristic vector for the first hobby is selected from the second table, and a first hobby characteristic vector for the first hobby is selected from the third table. After selecting the first personality feature vector for the first personality type, the first age group feature vector, the first hobby feature vector, and the first personality feature vector are sequentially arranged as row vectors to obtain the first member feature matrix. After generating and decrypting the encrypted verification matrix with the first private key, the first feedback matrix may be generated and transmitted to the metaverse service server by matrix multiplication of the first member characteristic matrix and the verification matrix. .

In addition, according to one embodiment of the present invention, the operation method of the metaverse service server may include a friend recommendation request from the first electronic terminal after the first avatar is activated in the metaverse environment according to the account of the first member. When the command is received, it is checked whether a member characteristic matrix matching the first member characteristic matrix exists among the member characteristic matrices stored in the avatar database, and among the member characteristic matrices stored in the avatar database, If it is confirmed that there is a member characteristic matrix for at least one member with a member characteristic matrix matching the first member characteristic matrix, member identification information for each of the at least one member, and the at least one member characteristic matrix, from the avatar database. extracting data on the avatar of each one member; generating a preview image of the avatar of each of the at least one member based on the data on the avatar of each of the at least one member; transmitting, to an electronic terminal, a preview image of each avatar of the at least one member; after the preview image of each avatar of the at least one member is transmitted to the first electronic terminal, the first electronic terminal When a friend addition request command for a second member, which is any one of the at least one member, is received from the terminal, a preview image of the first avatar of the first member is used based on data on the first avatar. After generating, second member identification information for the second member is checked, and based on the second member identification information, a preview image for the first avatar is sent to the second electronic terminal of the second member. While transmitting, transmitting a push message including content querying whether to accept the friend request of the first member and after the push message is transmitted to the second electronic terminal, from the second electronic terminal , When a response message instructing to accept the friend request of the first member is received, a friend list field corresponding to the first member identification information is created in the avatar database, and then the second member list field is displayed in the friend list field. The method may further include adding the second member to the friend list of the first member by storing member identification information.

At this time, according to an embodiment of the present invention, the transmitting of the preview image includes generating a preview image for the avatar of each of the at least one member based on the avatar data for each of the at least one member. Step, when a preview image of each avatar of the at least one member is generated, n diagonal components corresponding to the main diagonal of the verification matrix are extracted, and concatenated data is generated by concatenating the n diagonal components. generating a first hash value by applying the concatenated data to a preset hash function as an input, and when the first hash value is generated, a preview image of the avatar of each of the at least one member is converted into the first hash value; and transmitting the encrypted preview image of each avatar of the at least one member and the hash function to the first electronic terminal after encryption with a value.

At this time, when the first electronic terminal receives the encrypted preview image of the avatar of each of the at least one member and the hash function, extracts the n diagonal elements corresponding to the main diagonal of the verification matrix, After generating the concatenated data by concatenating n diagonal elements, the first hash value is generated by applying the concatenated data as an input to the hash function, and based on the first hash value, the at least one encrypted data is generated. By decoding the preview image of the avatar of each member, the preview image of the avatar of each of the at least one member may be restored.

In addition, according to one embodiment of the present invention, the operating method of the metaverse service server is a preset cloud storage for data storage when a request command for generating an NFT for the first avatar is received from the first electronic terminal. requesting to store data on the first avatar while transmitting data on the first avatar to a server; as the data on the first avatar is stored in the cloud storage server, from the cloud storage server When information on a first storage path in which data for the first avatar is stored is received, a first NFT including the first member identification information as information on the first storage path and owner information on the first avatar Generating and, when the first NFT is generated, may further include registering the first NFT in a blockchain network pre-set for NFT registration.

In the above, with reference to FIG. 2, a method of operating a metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA according to an embodiment of the present invention has been described. Here, since the operating method of the metaverse service server according to an embodiment of the present invention may correspond to the configuration of the operation of the metaverse service server 110 described using FIG. 1, a detailed description thereof is omitted. do it with

The operating method of the metaverse service server according to an embodiment of the present invention may be implemented as a computer program stored in a storage medium for execution through a combination with a computer.

In addition, the operating method of the metaverse service server according to an embodiment of the present invention may be implemented in the form of computer program instructions for execution through a combination with a computer and recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the medium may be those specially designed and configured for the present invention or those known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. - includes hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler.

As described above, the present invention has been described by specific details such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , Those skilled in the art in the field to which the present invention belongs can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and it will be said that not only the claims to be described later, but also all modifications equivalent or equivalent to these claims belong to the scope of the present invention. .

110: Metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA
111: public key storage unit 112: table maintenance unit
113: generation event generation unit 114: selection request unit.
115: feature vector selection unit 116: feature matrix generation unit
117: storage processing unit 118: verification event generating unit
119: Feedback matrix request unit 120: Feedback matrix check unit
121: avatar activation unit 122: data extraction unit
123: image transmission unit 124: push message transmission unit
125: friend addition processing unit 126: image generation unit
127: hash value generation unit 128: transmission processing unit
129: storage request unit 130: NFT generation unit
131: registration processing unit 132: avatar database
100: blockchain network
101, 102, 103, 104, 105, 106: a plurality of nodes
132: avatar database
141: first member 142: second member
142: first electronic terminal 152: second electronic terminal

Claims (12)

In the metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA,
Member identification information for each of a plurality of members subscribed to the metaverse service, and a pre-issued private key for each of the plurality of members - the private key for each of the plurality of members, the electronic terminal of each member pre-stored in - a public key storage unit in which a public key corresponding to is stored;
A first table in which n (n is a natural number equal to or greater than 2) dimensional age group feature vectors indicating each of a plurality of preset age groups, which are previously shared with electronic terminals of each of the plurality of members, are recorded; A table maintenance unit configured to store and maintain a second table in which n-dimensional hobby characteristic vectors indicating respective hobbies are recorded, and a third table in which n-dimensional personality characteristic vectors indicating each of a plurality of preset personality types are recorded. ;
When an avatar generation request command usable in the metaverse service is received from the first electronic terminal of the first member, which is one of the plurality of members, the first avatar is generated, and then access to the first avatar is received. a generation event generation unit generating a digital DNA generation event for generating digital DNA enabling;
When the digital DNA creation event occurs, one of the plurality of age groups, the plurality of hobbies, and the plurality of personality types matched with the first member is selected through the first electronic terminal. a selection requesting unit that transmits a first selection request message including content requesting selection of a personality type;
As a first age range, a first hobby, and a first personality type are selected from among the plurality of age groups, the plurality of hobbies, and the plurality of personality types by the first member, the first electronic terminal , When information on the first age range, the first hobby, and the first personality type is received, a first age range characteristic vector for the first age range is selected from the first table, and the first age range characteristic vector is selected from the second table. a feature vector selection unit that selects a first hobby feature vector for one hobby and selects a first personality feature vector for the first personality type from the third table;
a feature matrix generator generating a first member feature matrix having a size of 3xn by sequentially arranging the first age range feature vector, the first hobby feature vector, and the first personality feature vector as row vectors;
When the first member characteristic matrix is generated, after designating the first member characteristic matrix as digital DNA for the first avatar, first member identification information for the first member, data for the first avatar, and a storage processing unit that stores the first member characteristic matrices in an avatar database by matching them to each other;
After the first member identification information, the data for the first avatar, and the first member characteristic matrix are stored in the avatar database in correspondence with each other, an access request command for the metaverse service is received from the first electronic terminal Accordingly, when an activation request command for the first avatar is received from the first electronic terminal in a state in which the metaverse environment according to the account of the first member is provided, digital for verifying the digital DNA of the first avatar a verification event generation unit generating a DNA verification event;
When the digital DNA verification event occurs, after checking the first member identification information for the first member, a verification matrix having an nxn size, wherein the verification matrix is a matrix in which an inverse matrix exists, is randomly generated, After extracting the first public key for the first member from the public key storage unit based on the first member identification information, the verification matrix is encrypted with the first public key, and the first electronic terminal transmits the encrypted information. a feedback matrix requesting unit requesting transmission of a feedback matrix based on the verification matrix while transmitting the verification matrix;
In response to the transmission request of the feedback matrix, the first electronic terminal decrypts the encrypted verification matrix with a first private key for the first member stored in the first electronic terminal to restore the verification matrix; , After generating the first member feature matrix based on the first table, the second table, and the third table stored in the first electronic terminal, the first member feature matrix and the verification matrix are As a first feedback matrix is generated by matrix multiplication, when the first feedback matrix is received from the first electronic terminal, the first member characteristic matrix stored in correspondence with the first member identification information from the avatar database a feedback matrix verifying unit for verifying whether a resultant matrix generated by multiplying the first feedback matrix by an inverse matrix for the verification matrix after extracting is consistent with the first member characteristic matrix; and
If it is confirmed that the result matrix matches the first member characteristic matrix, after completing verification of the digital DNA for the first avatar, the stored corresponding to the first member identification information from the avatar database. Avatar activation unit for extracting data on the first avatar and activating the first avatar in the metaverse environment according to the account of the first member based on the data on the first avatar.
Metaverse service server including a. According to claim 1,
The first electronic terminal is
The first private key, the first table, the second table, and the third table are stored in memory, and the encrypted verification matrix is received from the metaverse service server, and the feedback matrix transmission request is requested. is received, a second selection request message including content requesting selection of an age range, hobby, and personality type matched to the first member from among the plurality of age groups, the plurality of hobbies, and the plurality of personality types. is displayed on the screen, and when a selection command for the first age group, the first hobby, and the first personality type is applied by the first member, a first command for the first age group from the first table is displayed. After selecting age range characteristic vectors, selecting a first hobby characteristic vector for the first hobby from the second table, and selecting a first personality characteristic vector for the first personality type from the third table, The first age group feature vector, the first hobby feature vector, and the first personality feature vector are sequentially arranged as row vectors to generate the first member feature matrix, and the encrypted verification matrix is decrypted with the first private key. , By multiplying the first member characteristic matrix and the validation matrix, the first feedback matrix is generated and transmitted to the metaverse service server. According to claim 1,
After the first avatar is activated in the metaverse environment according to the account of the first member, when a friend recommendation request command is received from the first electronic terminal, among member characteristic matrices stored in the avatar database, 1 It is checked whether there is a member characteristic matrix matching the member characteristic matrix, and a member characteristic matrix matching the first member characteristic matrix among the member characteristic matrices stored in the avatar database is selected for at least one member. a data extraction unit extracting member identification information for each of the at least one member and data for the avatar of each of the at least one member from the avatar database when it is confirmed that the member characteristic matrix exists;
After generating a preview image for the avatar of each of the at least one member based on the data of the avatar of each of the at least one member, the preview image for the avatar of each of the at least one member is generated through the first electronic terminal. an image transmission unit that transmits a preview image;
After the preview image of each avatar of the at least one member is transmitted to the first electronic terminal, a friend addition request command for a second member among the at least one member is received from the first electronic terminal. If received, a preview image of the first avatar of the first member is generated based on the data of the first avatar, and second member identification information of the second member is checked to determine the second member identification information. 2 Inquiring whether or not to accept the friend request of the first member while transmitting a preview image of the first avatar to the second electronic terminal of the second member based on member identification information; a push message transmission unit for transmitting a pushed message; and
After the push message is transmitted to the second electronic terminal, when a response message instructing acceptance of the friend request of the first member is received from the second electronic terminal, the first member is identified in the avatar database. A friend adding processing unit that adds the second member to the friend list of the first member by generating a friend list field corresponding to the information and then storing the second member identification information in the friend list field.
A metaverse service server further comprising a. According to claim 3,
The image transmission unit
an image generating unit that generates a preview image of an avatar of each of the at least one member based on the avatar data of each of the at least one member;
When a preview image of each avatar of the at least one member is generated, n diagonal components corresponding to the main diagonal of the verification matrix are extracted and concatenated to form a concatenation by concatenating the n diagonal components. a hash value generating unit generating a first hash value by applying the concatenated data as an input to a preset hash function after generating data; and
When the first hash value is generated, after encrypting the preview image of the avatar of each of the at least one member with the first hash value, the encrypted avatar of each of the at least one member is transmitted to the first electronic terminal. Transmission processing unit for transmitting the preview image and the hash function for
including,
The first electronic terminal is
When the encrypted preview image of each avatar of the at least one member and the hash function are received, the n diagonal elements corresponding to the main diagonal of the verification matrix are extracted, and the n diagonal elements are concatenated to obtain the After generating the concatenated data, the first hash value is generated by applying the concatenated data to the hash function as an input, and based on the first hash value, a preview of the avatar of each of the at least one member is encrypted. By decoding the view image, the metaverse service server, characterized in that for restoring the preview image for the avatar of each of the at least one member. According to claim 1,
When a request command for generating a Non-Fungible Token (NFT) for the first avatar is received from the first electronic terminal, data for the first avatar is transmitted to a preset cloud storage server for data storage, a storage requesting unit requesting storage of data for the first avatar;
When information on a first storage path in which data on the first avatar is stored is received from the cloud storage server as data on the first avatar is stored in the cloud storage server, information on the first storage path is received. and an NFT generator generating a first NFT including the first member identification information as owner information for the first avatar; and
When the first NFT is generated, a registration processing unit for registering the first NFT in a blockchain network pre-set for registration of the NFT.
A metaverse service server further comprising a. In the operating method of a metaverse service server for providing a metaverse service that provides an avatar in a metaverse environment based on digital DNA,
Member identification information for each of a plurality of members subscribed to the metaverse service, and a pre-issued private key for each of the plurality of members - the private key for each of the plurality of members, the electronic terminal of each member pre-stored in - maintaining a public key storage unit in which a public key corresponding to is stored;
A first table in which n (n is a natural number equal to or greater than 2) dimensional age group feature vectors indicating each of a plurality of preset age groups, which are previously shared with electronic terminals of each of the plurality of members, are recorded; storing and maintaining a second table in which n-dimensional hobby characteristic vectors indicating respective hobbies are recorded and a third table in which n-dimensional personality characteristic vectors indicating respective plurality of preset personality types are recorded;
When an avatar generation request command usable in the metaverse service is received from the first electronic terminal of the first member, which is one of the plurality of members, the first avatar is generated, and then access to the first avatar is received. Generating a digital DNA generation event for generating digital DNA enabling;
When the digital DNA creation event occurs, one of the plurality of age groups, the plurality of hobbies, and the plurality of personality types matched with the first member is selected through the first electronic terminal. Transmitting a first selection request message including content requesting selection of a personality type;
As a first age range, a first hobby, and a first personality type are selected from among the plurality of age groups, the plurality of hobbies, and the plurality of personality types by the first member, the first electronic terminal , When information on the first age range, the first hobby, and the first personality type is received, a first age range characteristic vector for the first age range is selected from the first table, and the first age range characteristic vector is selected from the second table. selecting a first hobby feature vector for one hobby, and selecting a first personality feature vector for the first personality type from the third table;
generating a first member feature matrix having a size of 3xn by sequentially arranging the first age range feature vector, the first hobby feature vector, and the first personality feature vector as row vectors;
When the first member characteristic matrix is generated, after designating the first member characteristic matrix as digital DNA for the first avatar, first member identification information for the first member, data for the first avatar, and Corresponding first member characteristic matrices to each other and storing them in an avatar database;
After the first member identification information, the data for the first avatar, and the first member characteristic matrix are stored in the avatar database in correspondence with each other, an access request command for the metaverse service is received from the first electronic terminal Accordingly, when an activation request command for the first avatar is received from the first electronic terminal in a state in which the metaverse environment according to the account of the first member is provided, digital for verifying the digital DNA of the first avatar Generating a DNA verification event;
When the digital DNA verification event occurs, after checking the first member identification information for the first member, a verification matrix having an nxn size, wherein the verification matrix is a matrix in which an inverse matrix exists, is randomly generated, After extracting the first public key for the first member from the public key storage unit based on the first member identification information, the verification matrix is encrypted with the first public key, and the first electronic terminal transmits the encrypted information. Requesting transmission of a feedback matrix based on the verification matrix while transmitting the verification matrix;
In response to the transmission request of the feedback matrix, the first electronic terminal decrypts the encrypted verification matrix with a first private key for the first member stored in the first electronic terminal to restore the verification matrix; , After generating the first member feature matrix based on the first table, the second table, and the third table stored in the first electronic terminal, the first member feature matrix and the verification matrix are As a first feedback matrix is generated by matrix multiplication, when the first feedback matrix is received from the first electronic terminal, the first member characteristic matrix stored in correspondence with the first member identification information from the avatar database After extracting , checking whether a resultant matrix generated when the first feedback matrix is multiplied by an inverse matrix for the validation matrix matches the first member characteristic matrix; and
If it is confirmed that the result matrix matches the first member characteristic matrix, after completing verification of the digital DNA for the first avatar, the stored corresponding to the first member identification information from the avatar database. Extracting data on the first avatar and activating the first avatar in a metaverse environment according to the account of the first member based on the data on the first avatar
Operation method of the metaverse service server including. According to claim 6,
The first electronic terminal is
The first private key, the first table, the second table, and the third table are stored in memory, and the encrypted verification matrix is received from the metaverse service server, and the feedback matrix transmission request is requested. is received, a second selection request message including content requesting selection of an age range, hobby, and personality type matched to the first member from among the plurality of age groups, the plurality of hobbies, and the plurality of personality types. is displayed on the screen, and when a selection command for the first age group, the first hobby, and the first personality type is applied by the first member, a first command for the first age group from the first table is displayed. After selecting age range characteristic vectors, selecting a first hobby characteristic vector for the first hobby from the second table, and selecting a first personality characteristic vector for the first personality type from the third table, The first age group feature vector, the first hobby feature vector, and the first personality feature vector are sequentially arranged as row vectors to generate the first member feature matrix, and the encrypted verification matrix is decrypted with the first private key. , A method of operating a metaverse service server, characterized in that by matrix multiplying the first member characteristic matrix and the verification matrix, the first feedback matrix is generated and transmitted to the metaverse service server. According to claim 6,
After the first avatar is activated in the metaverse environment according to the account of the first member, when a friend recommendation request command is received from the first electronic terminal, among member characteristic matrices stored in the avatar database, 1 It is checked whether there is a member characteristic matrix matching the member characteristic matrix, and a member characteristic matrix matching the first member characteristic matrix among the member characteristic matrices stored in the avatar database is selected for at least one member. extracting member identification information for each of the at least one member and data for the avatar of each of the at least one member, from the avatar database, if it is confirmed that the member characteristic matrix exists;
After generating a preview image for the avatar of each of the at least one member based on the data of the avatar of each of the at least one member, the preview image for the avatar of each of the at least one member is generated through the first electronic terminal. Sending a preview image;
After the preview image of each avatar of the at least one member is transmitted to the first electronic terminal, a friend addition request command for a second member among the at least one member is received from the first electronic terminal. If received, a preview image of the first avatar of the first member is generated based on the data of the first avatar, and second member identification information of the second member is checked to determine the second member identification information. 2 Inquiring whether or not to accept the friend request of the first member while transmitting a preview image of the first avatar to the second electronic terminal of the second member based on member identification information; Transmitting a pushed message; and
After the push message is transmitted to the second electronic terminal, when a response message instructing acceptance of the friend request of the first member is received from the second electronic terminal, the first member is identified in the avatar database. adding the second member to the friend list of the first member by generating a friend list field corresponding to information and then storing the second member identification information in the friend list field;
Method of operation of the metaverse service server further comprising a. According to claim 8,
Sending the preview image
generating a preview image for an avatar of each of the at least one member based on avatar data of each of the at least one member;
When a preview image of each avatar of the at least one member is generated, n diagonal components corresponding to the main diagonal of the verification matrix are extracted and concatenated to form a concatenation by concatenating the n diagonal components. After generating data, generating a first hash value by applying the concatenated data as an input to a preset hash function; and
When the first hash value is generated, after encrypting the preview image of the avatar of each of the at least one member with the first hash value, the encrypted avatar of each of the at least one member is transmitted to the first electronic terminal. Transmitting a preview image and the hash function for
including,
The first electronic terminal is
When the encrypted preview image of each avatar of the at least one member and the hash function are received, the n diagonal elements corresponding to the main diagonal of the verification matrix are extracted, and the n diagonal elements are concatenated to obtain the After generating the concatenated data, the first hash value is generated by applying the concatenated data to the hash function as an input, and based on the first hash value, a preview of the avatar of each of the at least one member is encrypted. A method of operating a metaverse service server, characterized in that by decoding the view image, to restore the preview image for the avatar of each of the at least one member. According to claim 6,
When a request command for generating a Non-Fungible Token (NFT) for the first avatar is received from the first electronic terminal, data for the first avatar is transmitted to a preset cloud storage server for data storage, requesting storage of data for the first avatar;
When information on a first storage path in which data on the first avatar is stored is received from the cloud storage server as data on the first avatar is stored in the cloud storage server, information on the first storage path is received. and generating a first NFT including the first member identification information as owner information for the first avatar; and
When the first NFT is generated, registering the first NFT in a blockchain network pre-set for registration of the NFT.
Method of operation of the metaverse service server further comprising a. A computer-readable recording medium recording a computer program for executing the method of any one of claims 6 to 10 through a combination with a computer. A computer program stored in a storage medium for executing the method of any one of claims 6 to 10 through a combination with a computer.

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