公开(公告)号：US20140351303A1

公开(公告)日：2014-11-27

申请号：US14135162

申请日：2013-12-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seon-yeong PARK ,  Hyuk Joong YOON ,  Sang Yun HAN ,  Jong Tai LEE ,  Hee Bong CHOI ,  Sangwoo PARK

IPC: G06F7/58

CPC classification number: G06F7/588 ,  G06F7/58

Abstract: The present invention relates to an apparatus and method for acquiring noise source entropy for a random number generator, which use contention for access to memory between Graphical Processing Unit (GPU) cores. For this, an apparatus for acquiring noise source entropy for a random number generator includes a core calling unit for simultaneously calling a plurality of cores to a critical area, and a noise source entropy generation unit for generating noise source entropy based on a sequence of entry of the plurality of cores into the critical area.

Abstract translation: 本发明涉及用于获取随机数发生器的噪声源熵的装置和方法，该随机数发生器利用图形处理单元（GPU）核心之间存取存取的争用。 为此，用于获取随机数发生器的噪声源熵的装置包括：用于将多个核同时调用至关键区域的核心调用单元，以及用于基于入口序列产生噪声源熵的噪声源熵产生单元 的多个核心进入关键区域。

公开(公告)号：US20220060324A1

公开(公告)日：2022-02-24

申请号：US17069084

申请日：2020-10-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Hwan PARK ,  Sang Yun HAN ,  Sang Woon JANG ,  Il Hwan PARK

IPC: H04L9/08 ,  G06F3/06 ,  H04L9/06

Abstract: An apparatus and method for encryption key recovery based on memory analysis. The apparatus may include 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 may collect memory information pertaining to an encrypted part of a file, in which ransomware is detected, based on dynamic binary instrumentation, analyze memory read operation data corresponding to an encryption key that is used for encryption of the file in the memory information, recover the encryption key based on the result of analysis of the memory read operation data, and output the result of recovery of the encryption key.

公开(公告)号：US20140108818A1

公开(公告)日：2014-04-17

申请号：US13958543

申请日：2013-08-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hee Bong CHOI ,  Sang Yun HAN ,  Kwang Jik YANG ,  Hyuk Joong YOON ,  Yongjin YEOM

IPC: G06F21/60

CPC classification number: G06F21/602 ,  G06F21/57 ,  G06F2221/2101 ,  G06F2221/2105 ,  H04L63/0428 ,  H04L63/06

Abstract: In a method of encrypting session state information, the value of a counter corresponding to session state information to be encrypted is calculated based on the ID of a cryptographic session corresponding to the session state information to be encrypted and the value of a session termination counter for the cryptographic session. The session state information to be encrypted is encrypted based on the calculated value of the counter and a preset key.

Abstract translation: 在加密会话状态信息的方法中，基于与要加密的会话状态信息相对应的密码会话的ID，计算与要加密的会话状态信息对应的计数器的值，以及会话终止计数器的值 加密会话。 基于计算器的计算值和预设密钥来加密要加密的会话状态信息。