公开(公告)号：US20250165620A1

公开(公告)日：2025-05-22

申请号：US18923303

申请日：2024-10-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： HONG-IL JU ,  Dong-Wook KANG ,  GAE-IL AN

IPC: G06F21/57

Abstract: Disclosed herein is a method for detecting a security vulnerability of dynamic memory. The method includes allocating a heap area in physical memory in response to a heap allocation request from a user, allocating a heap area of virtual memory corresponding to the heap area in the physical memory, and returning a heap allocation address to the user, and the heap allocation address includes heap authentication information, heap allocation address identification information, and heap size information.

公开(公告)号：US20240232073A9

公开(公告)日：2024-07-11

申请号：US18363285

申请日：2023-08-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong-Wook KANG ,  Gae-Il AN ,  Hong-Il JU

IPC: G06F12/02

CPC classification number: G06F12/0253 ,  G06F2212/7205

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.

公开(公告)号：US20230004680A1

公开(公告)日：2023-01-05

申请号：US17738524

申请日：2022-05-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yong-Je CHOI ,  Dae-Won KIM ,  Sang-Su LEE ,  Byeong-Cheol CHOI ,  Dong-Wook KANG ,  Ik-Kyun KIM ,  Yang-Seo CHOI

IPC: G06F21/70 ,  G06F21/57

Abstract: Disclosed herein are an apparatus and method for verifying the integrity of a hardware board. The apparatus includes one or more processors and execution memory for storing at least one program that is executed by the processors, wherein the program is configured to compare images of components arranged on a verification target board and a source board in a first image, obtained by photographing the verification target board, and in a second image prestored for the source board, as to whether images of the components are identical to each other, and compare first firmware extracted from the verification target board with second firmware of the source board, as to whether first firmware is identical to second firmware and verify integrity of the verification target board based on whether the images are identical to each other and on whether the pieces of firmware are identical to each other.

公开(公告)号：US20210184885A1

公开(公告)日：2021-06-17

申请号：US17077702

申请日：2020-10-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： 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

IPC: H04L12/28 ,  H04L12/40 ,  H04L29/08

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.

公开(公告)号：US20240160565A1

公开(公告)日：2024-05-16

申请号：US18349673

申请日：2023-07-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hong-Il JU ,  Dong-Wook KANG ,  Gae-Il AN

IPC: G06F12/02

CPC classification number: G06F12/0292 ,  G06F2212/1052

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.

公开(公告)号：US20230205431A1

公开(公告)日：2023-06-29

申请号：US18048344

申请日：2022-10-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hong-Il JU ,  Dong-Wook KANG ,  Gae-Il AN ,  Bo-Heung CHUNG ,  Byeong-Cheol CHOI

IPC: G06F3/06

CPC classification number: G06F3/0622 ,  G06F3/0631 ,  G06F3/0673

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.

公开(公告)号：US20230004499A1

公开(公告)日：2023-01-05

申请号：US17737174

申请日：2022-05-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yong-Je CHOI ,  Dae-Won KIM ,  Sang-Su LEE ,  Byeong-Cheol CHOI ,  Dong-Wook KANG ,  Yang-Seo CHOI

IPC: G06F12/0873 ,  G06F12/0868

Abstract: Disclosed herein are an apparatus and method for extracting memory map information from firmware. The 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 retrieves memory-related data from firmware, sets a data structure by analyzing binary code based on the memory-related data, and retrieves a memory map structure from the firmware using the data structure.

公开(公告)号：US20210136051A1

公开(公告)日：2021-05-06

申请号：US16945120

申请日：2020-07-31

Applicant: Electronics and Telecommunications Research Institute

Inventor： 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

IPC: H04L29/06 ,  H04W12/06 ,  H04W4/48 ,  H04B3/56

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.

公开(公告)号：US20250036486A1

公开(公告)日：2025-01-30

申请号：US18917040

申请日：2024-10-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong-Wook KANG ,  Gae-Il AN ,  Hong-Il JU

IPC: G06F9/52

Abstract: Disclosed herein are a data race detection method and apparatus. The data race detection method includes recording information about an instruction executed by a thread in a destination register in a Central Processing Unit (CPU) corresponding to the thread, setting information of an access log field corresponding to the instruction for a cache line of a cache memory, and detecting a data race using the information of the access log field and information of the destination register.

公开(公告)号：US20230195886A1

公开(公告)日：2023-06-22

申请号：US17849960

申请日：2022-06-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Gae-Il AN ,  Dong-Wook KANG ,  Bo-Heung CHUNG ,  Hong-Il JU ,  Byeong-Cheol CHOI

IPC: G06F21/54

CPC classification number: G06F21/54 ,  G06F2221/033

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.