Samsung Electronics Co., Ltd.

Snu Rdb Foundation

Bumhan Kim

Hansang Song

Sunjune Kong

Seungwon Shin

Eunbi Kim

Jinhyoung Kim

Kyunghee Lee

Sunghoon Yoo

Taehoon Kim

Jeongil Kim

Jinsu Kim

Dasom Lee

Sungho Cho

Seongjin Cho

Eunyoung Kwon

Jaeyoon Lee

Michael Pak

Hyunsook Hong

Junghee Cheon

JongHyun Ahn

Jonghyeon Lee

Hansol Ryu

Hongtae Kim

Byeonghwa Kim

Mincheol Jung

Naheasal Kim

Sangbin Baek

Daeun Jeong

Jungha Paik

Hoyong Jeong

A method, performed by a server, of managing a non-fungible token (NFT) for content, is provided. The method includes, in response to receiving a request to issue an NFT for target content from a first electronic device of a first user who has generated the target content, generating basic metadata on the target content, uploading the generated basic metadata to a target folder generated in an interplanetary file system (IPFS), generating first ownership metadata including a content identifier (CID) of the uploaded basic metadata, obtaining a first CID of the target folder with the first ownership metadata uploaded to the target folder, and linking the obtained first CID of the target folder to an NFT uniform resource identifier (URI) of the target content.

Apparatus and method of issuing centralized non-fungible token by using interplanetary file system

According to certain embodiments, an electronic device comprises: a memory storing an interface and an application; a processor; and a secure module physically separated from the processor and including a secure processor and a secure memory, wherein the processor is configured to: obtain user authentication information, through the interface; attempt user authentication, based on the user authentication information; obtain data stored in the secure memory when the user authentication succeeds; store a first token including a first valid duration for an access to the secure memory, the obtained data, and a first key value for decoding the obtained data in a buffer; and delete the first token and the first key value from the buffer when the first valid duration expires.

Method of processing secure data and electronic device supporting the same

The disclosure relates to an electronic device for generating a mnemonic phrase of a private key and an operation method in the electronic device. The electronic device may comprise a memory, a display module, and at least one processor electrically connected with the memory and the display module. The at least one processor may be configured to generate a private key and a public key, generate a first mnemonic phrase including a designated first number of words based on a structure of the private key, identify a user phrase input by a user, generate a second mnemonic phrase including a second number of words identified based on a security level obtained by analyzing the user phrase, and control the display module to display the generated second mnemonic phrase. Other embodiments are possible.

Electronic device for generating mnemonic phrase of private key and operation method in the electronic device

A method and device for non-fungible token (NFT)-based software is disclosed. A method of running the NFT-based software performed on the device includes: running the NFT-based software in response to an execution request for executing the NFT-based software; loading NFT metadata including identification information indicating the NFT-based software, identification information indicating an owner of the NFT-based software, and specified engraving data, in response to the execution request; and outputting the engraving data included in the NFT metadata based on an event occurring as the NFT-based software runs.

Method and device for NFT-based software

An electronic device and method are disclosed for managing a non-fungible token (NFT). The electronic device includes: a memory configured to store computer-executable instructions, and a processor. The processor implements the method, including: generating, a NFT for target content in response to receiving a request to register the target content from a first external electronic device, generating, for the NFT, a certification authority (CA) signature indicating that the NFT is generated by the server, and transmitting, via a communication circuitry, the NFT to the first external electronic device, wherein an ownership signature is added to the NFT, together with the CA signature, the ownership signature based on a private key of a user to which ownership of the NFT is assigned.

Method and apparatus for managing non-fungible token for digital content

An electronic device and permission control method are disclosed. The electronic device includes a display, a communication circuitry, a memory and a processor. The processor implements the method, including: receiving a first evaluation regarding usage of an access permission by at least one application from a server, via the communication circuitry, generating usage information indicating historical usage of the access permission by the at least one application, generating a second evaluation of the access permission granted to the at least one application, based at least on the usage information, determining an evaluation result based on at least one of the first evaluation or the second evaluation, and determining whether to display a user notification regarding the access permission, based on the evaluation result.

Method for controlling permission of application and electronic device supporting the same

An electronic device and a method of operating the electronic device are provided. Data corresponding to a user input is received through a user interface of the electronic device. The data is stored in a normal area of a memory of the electronic device. A quantity of information in the stored data is identified. At least one key is selected from a plurality of keys stored in the memory, based on at least the quantity of information. The data is encrypted using the at least one key. The encrypted data and information indicating the at least one key are transmitted to a secure area of the memory, which requires access authority.

Electronic device for selecting key to be used for encryption on basis of amount of information of data to be encrypted, and operation method of electronic device

An electronic device according to an embodiment includes a first random number generator module, a second random number generator module, a buffer memory configured to store random number data, and a processor configured to be operatively connected to the first random number generator module, the second random number generator module, and the buffer memory, wherein the processor is configured to acquire a first random number sequence from the first random number generator module to store the acquired first random number sequence in the buffer memory, generate a third random number sequence obtained by changing the first random number sequence based on a second random number sequence acquired from the second random number generator module, and generate an encryption key based on the third random number sequence. In addition, various other embodiments are possible.

Electronic device to enhance randomness of security module using multiple hardware random number generator and the method thereof

An electronic device and method of operating an electronic device are provided. The electronic device includes an integrated circuit including at least one key, at least one processor including the integrated circuit, and a memory operatively connected to the at least one processor. The memory stores instructions that, when executed, cause the at least one processor to obtain at least one piece of hardware information related to the electronic device, generate a signed certificate signing request including the at least one piece of hardware information, based on the at least one key, transmit the signed certificate signing request to an external electronic device, receive an attestation certificate generated based on the signed certificate signing request, from the external electronic device, and store the received attestation certificate in the memory.

Electronic device and method for generating attestation certificate based on fused key

An electronic device is provided. The electronic device includes a communication circuit, a display, a memory including a first display driver, a processor functionally connected with the communication circuit, the display, and the memory, and a secure module which is physically separated from the processor, and includes a secure processor and a second display driver, and the secure processor is configured to: when secure data is received from an external server through the communication circuit, disable the first display driver and enable the second display driver, and output a user interface including a first object corresponding to the secure data to the display by using the enabled second display driver.

An electronic device including a secure Integrated Circuit (IC) is provided. The electronic device includes a secure IC configured as a System-on-Chip (SoC) and configured to provide a general environment and a security environment, wherein the secure IC includes a main processor configured to operate in the general environment, a secure processor configured to operate in the security environment and control security of data using a first security key, and a secure memory configured to be operatively connected to the secure processor and store a second security key corresponding to the first security key. Various other embodiments are possible.

Electronic device including secure integrated circuit

An apparatus and a method for updating firmware by using a security integrated circuit in an electronic device. An electronic device may include a security integrated circuit (IC) providing a rich execution environment and a secure execution environment. The security integrated circuit includes a main processor operating in the rich execution environment and a secure processor operating in the secure execution environment. The secure processor is configured to perform user authentication based on firmware update information received from a server through the main processor. If the user authentication is successful, authentication information is generated corresponding to the firmware update information and stored in at least a part of a secure memory. If the firmware is installed, authentication of the firmware is performed based on the authentication information stored in the secure memory, and if the authentication of the firmware is successful, the firmware is installed.

Electronic device for updating firmware by using security integrated circuit and operation method thereof

A method of managing keys and an electronic device adapted to the method are provided. The method includes creating a first key, based on information included in a memory space of a processor, creating a second key, based on at least one item of user information, and creating a third key that was created through at least one encryption process, based on the created first key and the created second key.

Method of managing keys and electronic device adapted to the same

A data protection method and apparatus that can protect data through encryption using a Boolean function is provided. The data protection method includes applying an inverse affine transformation to data to be encrypted using a Boolean function; applying round operations of an Advanced Encryption Standard (AES) cryptographic algorithm to the inverse-affine transformed data; and producing ciphertext data by applying an affine transformation to the result of the round operations.

Data protection method and apparatus

A method and an apparatus for detecting a tampered application are provided. The method of detecting a tampered application includes acquiring a package of an application, extracting and installing a first execution code from the acquired package of the application, extracting a second execution code from the package of the application when an execution command of the application is received after the first execution code is installed, and performing a preset operation when the second execution code differs from the first execution code.

Growing community of inventors

Seoul, South Korea

Bumhan Kim