Patents by Inventor Hong-il Ju

Hong-il Ju has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240232073
    Abstract: Disclosed herein are a garbage collection method and apparatus. The garbage collection method includes when an area dynamically allocated through a malloc( ) function or a new operator of a standard C library is deallocated through a free( ) function or a delete operator, inserting the deallocated area into a quarantine list, recording a base address and an end address of each of areas inserted into the quarantine list in a CSR_quarantined_chunks register, finding a physical address of a memory page used by a processor and searching data in the memory page for a value included in a quarantined area of the CSR_quarantined_chunks register, when a value included in the quarantined area is not present, setting a state flag bit of the register to 0, and deleting an area which the state flag bit is 0 from the quarantine list, and inserting the area into a free list.
    Type: Application
    Filed: August 1, 2023
    Publication date: July 11, 2024
    Inventors: Dong-Wook KANG, Gae-Il AN, Hong-Il JU
  • Publication number: 20240160725
    Abstract: Disclosed herein are an apparatus and method for injecting control flow integrity security code based on a location. The apparatus identifies an indirect function call in input program code, generates indirect function call location information by analyzing the identified indirect function call, and injects control flow integrity security code into the program code using the generated indirect function call location information.
    Type: Application
    Filed: July 10, 2023
    Publication date: May 16, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: GAE-IL AN, Dong-Wook KANG, HONG-IL JU
  • Publication number: 20240160565
    Abstract: Disclosed herein are a dynamic memory management apparatus and a method for allocating/deallocating dynamic memory. The apparatus includes actual memory configured to allocate or deallocate a heap, virtual memory configured to set/store heap allocation information at a virtual address mapped to an actual address that is a body start address of a heap area of the actual memory, and a dynamic memory manager configured to process a memory allocation or deallocation request and the virtual memory, wherein the heap allocation information includes access authority information for storing information indicating whether a heap at an actual address is allocated or deallocated, and count information increased whenever a heap is allocated, and the dynamic memory manager is configured to return an address pointer including an actual address of a heap allocated to the actual memory and heap allocation information to the program, and process a heap deallocation or reallocation request.
    Type: Application
    Filed: July 10, 2023
    Publication date: May 16, 2024
    Inventors: Hong-Il JU, Dong-Wook KANG, Gae-Il AN
  • Publication number: 20240134790
    Abstract: Disclosed herein are a garbage collection method and apparatus. The garbage collection method includes when an area dynamically allocated through a malloc( ) function or a new operator of a standard C library is deallocated through a free( ) function or a delete operator, inserting the deallocated area into a quarantine list, recording a base address and an end address of each of areas inserted into the quarantine list in a CSR_quarantined_chunks register, finding a physical address of a memory page used by a processor and searching data in the memory page for a value included in a quarantined area of the CSR_quarantined_chunks register, when a value included in the quarantined area is not present, setting a state flag bit of the register to 0, and deleting an area which the state flag bit is 0 from the quarantine list, and inserting the area into a free list.
    Type: Application
    Filed: July 31, 2023
    Publication date: April 25, 2024
    Inventors: Dong-Wook KANG, Gae-Il AN, Hong-Il JU
  • Patent number: 11968312
    Abstract: Disclosed herein are an apparatus and method for processing vehicle data security based on a cloud.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: April 23, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sang-Woo Lee, Dae-Won Kim, Jin-Yong Lee, Boo-Sun Jeon, Bo-Heung Chung, Hong-Il Ju, Joong-Yong Choi
  • Publication number: 20230205431
    Abstract: Disclosed herein are a dynamic memory management apparatus and method and a computer-readable storage medium for the same. The dynamic memory management method includes defining a shadow area mapped to a memory area, setting a coloring value in the shadow area, and permitting or denying access to the memory area based on the coloring value when accessing the memory area.
    Type: Application
    Filed: October 20, 2022
    Publication date: June 29, 2023
    Inventors: Hong-Il JU, Dong-Wook KANG, Gae-Il AN, Bo-Heung CHUNG, Byeong-Cheol CHOI
  • Publication number: 20230195886
    Abstract: Disclosed herein is a method for securing an indirect function call according to an embodiment of the present invention. The method may include searching for an instruction that indirectly calls a function in intermediate representation code, calculating the number of functions that have to be allowed to be indirectly called based on the found instruction, identifying the address of a function loaded at the N-th lowest address arbitrarily set in advance, among the functions, the number of which is calculated, identifying indexes for selecting callee functions to be indirectly called based on the found instruction, determining whether to allow the function to be called using the identified indexes, and determining, when the function is allowed to be called, whether to allow the function to be called using the address of a callee function, the memory address of which is N-th lowest, among the callee functions.
    Type: Application
    Filed: June 27, 2022
    Publication date: June 22, 2023
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gae-Il AN, Dong-Wook KANG, Bo-Heung CHUNG, Hong-Il JU, Byeong-Cheol CHOI
  • Patent number: 11599488
    Abstract: An electronic device includes a peripheral device, a processor, an interrupt controller configured to manage interrupts generated by the peripheral device and the processor on the basis of a register, and a virtualizer, wherein the virtualizer may be configured to virtualize a portion of the processor and a portion of the at least one peripheral device to generate a first partition, generate first interrupt information corresponding to an interrupt usable in the first partition, generate first processor information corresponding to a portion of the processor usable in the first partition, check whether a configuration of the register is related to at least one of the first interrupt information and the first processor information when the register is configured by the first partition, and allow the configuration of the register when the configuration of the register is related to the at least one information.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: March 7, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dong Wook Kang, Dae Won Kim, Jin Yong Lee, Boo Sun Jeon, Bo Heung Chung, Hong Il Ju, Joong Yong Choi, Ik Kyun Kim, Byeong Cheol Choi
  • Patent number: 11516194
    Abstract: Disclosed herein are an in-vehicle network apparatus and method. The in-vehicle network apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program is configured to verify the integrity of software stored in advance in the executable memory, to generate a key table by sharing authentication information with a communication target, and to exchange an encrypted message with the communication target using the key table.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: November 29, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dae-Won Kim, Dong-Wook Kang, Sang-Woo Lee, Jin-Yong Lee, Boo-Sun Jeon, Bo-Heung Chung, Hong-Il Ju, Byeong-Cheol Choi, Joong-Yong Choi
  • Patent number: 11502870
    Abstract: Disclosed herein are a method for managing an access control list based on an automotive Ethernet and an apparatus for the same. The method includes analyzing a new access control rule that is input to a vehicle in which the automotive Ethernet is applied, searching for any one target unit to manage the new access control rule in consideration of at least one of a destination and an application target corresponding to the new access control rule, and storing the new access control rule by transmitting a storage request message corresponding to the new access control rule to the target unit.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: November 15, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joong-Yong Choi, Dong-Wook Kang, Dae-Won Kim, Sang-Woo Lee, Jin-Yong Lee, Boo-Sun Jeon, Bo-Heung Chung, Hong-Il Ju, Byeong-Cheol Choi
  • Patent number: 11418328
    Abstract: Disclosed is a system for performing key management of an in-vehicle network. The key management system of the in-vehicle network includes a reception unit configured to receive a shared secret key of a central gateway and a domain gateway, a memory configured to store a program for performing key management of the in-vehicle network using the shared secret key, and a processor configured to execute the program. The processor generates a secret key to be stored in a node of the in-vehicle network using the shared secret key and a unique ID of the node.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: August 16, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hong Il Ju, Dae Won Kim, Jin Yong Lee, Boo Sun Jeon, Bo Heung Chung, Byeong Cheol Choi
  • Publication number: 20220210143
    Abstract: Disclosed are an apparatus and method for communicating data in an in-vehicle network. The method, performed by apparatuses for communicating data on a transmission side and a reception side, includes determining, by the apparatus on the transmission side, whether data collected from the in-vehicle network is changed; creating, by the apparatus on the transmission side, an authentication value based on the determination as to whether the data is changed, creating a message including the data and the authentication value and transmitting the message to the apparatus on the reception side; receiving, by the apparatus on the reception side, the message; creating, by the apparatus on the reception side, a verification value using data extracted from the message; and verifying, by the apparatus on the reception side, the integrity of the apparatus on the transmission side by comparing the authentication value extracted from the message with the verification value.
    Type: Application
    Filed: October 22, 2021
    Publication date: June 30, 2022
    Inventors: Bo-Heung CHUNG, Dae-Won KIM, Sang-Woo LEE, Jin-Yong LEE, Boo-Sun JEON, Hong-Il JU, Joong-Yong CHOI
  • Publication number: 20220166632
    Abstract: Disclosed herein are an apparatus and method for processing vehicle data security based on a cloud.
    Type: Application
    Filed: November 16, 2021
    Publication date: May 26, 2022
    Inventors: Sang-Woo LEE, Dae-Won KIM, Jin-Yong LEE, Boo-Sun JEON, Bo-Heung CHUNG, Hong-Il JU, Joong-Yong CHOI
  • Publication number: 20210185070
    Abstract: Disclosed herein are a lightweight intrusion detection method and apparatus for a vehicle network. The lightweight intrusion detection method may include collecting Ethernet packets from a domain gateway of a vehicle that provides a mirroring port, performing a primary intrusion detection check on the Ethernet packets using a rule-based intrusion detection technique, and performing a secondary intrusion detection check on the Ethernet packets using a machine learning-based intrusion detection technique when no intrusion attack is detected as a result of the primary intrusion detection check.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Boo-Sun JEON, Dong-Wook KANG, Dae-Won KIM, Sang-Woo LEE, Jin-Yong LEE, Bo-Heung CHUNG, Hong-Il JU, Byeong-Cheol CHOI, Joong-Yong CHOI
  • Publication number: 20210184885
    Abstract: Disclosed herein are a method for managing an access control list based on an automotive Ethernet and an apparatus for the same. The method includes analyzing a new access control rule that is input to a vehicle in which the automotive Ethernet is applied, searching for any one target unit to manage the new access control rule in consideration of at least one of a destination and an application target corresponding to the new access control rule, and storing the new access control rule by transmitting a storage request message corresponding to the new access control rule to the target unit.
    Type: Application
    Filed: October 22, 2020
    Publication date: June 17, 2021
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joong-Yong CHOI, Dong-Wook KANG, Dae-Won KIM, Sang-Woo LEE, Jin-Yong LEE, Boo-Sun JEON, Bo-Heung CHUNG, Hong-Il JU, Byeong-Cheol CHOI
  • Publication number: 20210174607
    Abstract: Disclosed herein are a method for replacing vehicle parts using an in-vehicle network based on an automotive Ethernet and a system for the same. The method is configured such that a vehicle diagnosis module included in a vehicle performs vehicle self-diagnosis, such that the vehicle and a vehicle manufacturer server perform an authentication process for a new part when a vehicle part is replaced based on a vehicle part replacement agreement procedure between the terminal of a vehicle owner and the maintenance terminal of a vehicle maintenance company, and such that the terminal of the vehicle owner checks whether replacement of the vehicle part is performed normally by requesting an integrity check result from each of the vehicle and the vehicle manufacturer server when the maintenance terminal transmits a part replacement completion message to the terminal of the vehicle owner after completion of the authentication process.
    Type: Application
    Filed: November 19, 2020
    Publication date: June 10, 2021
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hong-Il JU, Dong-Wook KANG, Dae-Won KIM, Sang-Woo LEE, Jin-Yong LEE, Boo-Sun JEON, Bo-Heung CHUNG, Byeong-Cheol CHOI, Joong-Yong CHOI
  • Publication number: 20210165752
    Abstract: An electronic device includes a peripheral device, a processor, an interrupt controller configured to manage interrupts generated by the peripheral device and the processor on the basis of a register, and a virtualizer, wherein the virtualizer may be configured to virtualize a portion of the processor and a portion of the at least one peripheral device to generate a first partition, generate first interrupt information corresponding to an interrupt usable in the first partition, generate first processor information corresponding to a portion of the processor usable in the first partition, check whether a configuration of the register is related to at least one of the first interrupt information and the first processor information when the register is configured by the first partition, and allow the configuration of the register when the configuration of the register is related to the at least one information.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong Wook KANG, Dae Won KIM, Jin Yong LEE, Boo Sun JEON, Bo Heung CHUNG, Hong Il JU, Joong Yong CHOI, Ik Kyun KIM, Byeong Cheol CHOI
  • Publication number: 20210136051
    Abstract: Disclosed herein are an in-vehicle network apparatus and method. The in-vehicle network apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program is configured to verify the integrity of software stored in advance in the executable memory, to generate a key table by sharing authentication information with a communication target, and to exchange an encrypted message with the communication target using the key table.
    Type: Application
    Filed: July 31, 2020
    Publication date: May 6, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dae-Won KIM, Dong-Wook KANG, Sang-Woo LEE, Jin-Yong LEE, Boo-Sun JEON, Bo-Heung CHUNG, Hong-Il JU, Byeong-Cheol CHOI, Joong-Yong CHOI
  • Patent number: 10785023
    Abstract: An apparatus and method for managing meter data. The apparatus for managing meter data includes a metering unit for acquiring meter data from a target device based on time information; a communication unit for receiving a message including the time information from a server device and transmitting the meter data to the server device; and a security unit for creating a private key using the time information and encrypting the meter data using the private key.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: September 22, 2020
    Assignee: ELECTRONICS AND TELECOMMUNCATIONS RESEARCH INSTIITUTE
    Inventors: Hong-Il Ju, Young-Ho Kim, Yun-Kyung Lee, Bo-Heung Chung, Jeong-Nyeo Kim, Jae-Deok Lim
  • Publication number: 20200174920
    Abstract: Disclosed herein are a method and apparatus for randomizing the address space layout of an embedded system based on hardware. The method is configured such that the hardware loader of the embedded system randomly arranges the respective address regions of multiple peripheral devices and memory using a random number each time a program is loaded, such that the respective random start addresses of the multiple peripheral devices and the memory, which are set based on the randomly arranged address regions, are recorded in an address table, and such that program code loaded into the memory is reengineered based on the address table so as to match the randomly arranged address regions.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin-Yong LEE, Dae-Won KIM, Boo-Sun JEON, Bo-Heung CHUNG, Hong-Il JU, Byeong-Cheol CHOI