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公开(公告)号：KR1020130119286A
公开(公告)日：2013-10-31
申请号：KR1020120042315
申请日：2012-04-23
Applicant: 한국전자통신연구원
IPC: G06F7/58
CPC classification number: G06F7/588
Abstract: PURPOSE: A method and apparatus for generating a random number of double track method using a nonvolatile memory uses a nonvolatile memory to achieve miniaturization and efficiency-improvement of a system design by using a nonvolatile memory without extra setup necessary for an embedded system including an SRAM-based random number generator. CONSTITUTION: An SDRAM (201) stores an executable code of a random number generator. A microprocessor (202) uses an entropy source for storing and an entropy source for generating to update a random number status of the random number generator. The microprocessor leads random number status information in a nonvolatile memory when supplying power. The microprocessor uses the random number status information and the entropy source for storing to update a random number status of the random number generator, generating updated random number status information. The microprocessor stores the updated random number status information in the nonvolatile memory. [Reference numerals] (202) Microprocessor; (203) Non-volatile memory; (205) Battery
Abstract translation: 目的：使用非易失性存储器生成随机数的双轨方法的方法和装置使用非易失性存储器，通过使用非易失性存储器来实现系统设计的小型化和效率提高，而不需要对包括SRAM的嵌入式系统进行额外设置 的随机数发生器。 构成：SDRAM（201）存储随机数发生器的可执行代码。 微处理器（202）使用熵源进行存储，熵源用于生成随机数发生器的随机数状态。 当供电时，微处理器在非易失性存储器中引导随机数状态信息。 微处理器使用随机数状态信息和熵源来存储以更新随机数发生器的随机数状态，产生更新的随机数状态信息。 微处理器将更新的随机数状态信息存储在非易失性存储器中。 （附图标记）（202）微处理器; （203）非易失性存储器; （205）电池
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公开(公告)号：KR100866848B1
公开(公告)日：2008-11-04
申请号：KR1020070062322
申请日：2007-06-25
Applicant: 한국전자통신연구원
Abstract: 본 발명은 무선 환경의 메시지 전문 통신에서 암호통신 은닉 방법 및 장치에 관한 것으로, 무선 통신 환경에서 메시지 전문(電文) 통신의 암/복호를 수행하는 암호/복호 장치의 암/복호 통신 상태를 감추기 위해, 전문통신 단말로부터 수신된 평문을 암호화하여 암호문을 생성하는 단계와; 상기 암호문이 없는 경우에는 난수 데이터를 생성하는 단계와; 상기 암호문 및 상기 난수 데이터로 구성되는 비트스트림을 전송하는 단계를 포함하는 것을 특징으로 한다.
메시지 전문 통신, 암호통신, 은닉, 전문 암호, 난수발생기, 동기 패턴 생성, 오류정정부호, 동기 패턴 검출, 동기 획득, 전문 복호, 동기 프레임, 무선모뎀, BCH, IDLE-
公开(公告)号：KR1020080042664A
公开(公告)日：2008-05-15
申请号：KR1020070062322
申请日：2007-06-25
Applicant: 한국전자통신연구원
CPC classification number: H04L9/065 , H04L9/0869 , H04L9/12 , H04L2209/34 , H04L2209/80
Abstract: A method and an apparatus for hiding message cipher communication on a radio channel are provided to perform reliable key exchange by consecutively sending a synchronization frame inserted with a synchronization pattern twice. A method for hiding message cipher communication on a radio channel includes the steps of: creating ciphers by ciphering a plain text received from a message communication terminal(S51); creating random data when there are not the ciphers; and transmitting a bit stream constituted of the ciphers and random data(S57). The step of creating the ciphers includes the step of inserting a synchronization frame into a head of the cipher. The synchronization frame includes a synchronization pattern for discriminating the ciphers from the random data, and key information used to decode the ciphers.
Abstract translation: 提供了一种在无线电信道上隐藏消息密码通信的方法和装置，以通过连续发送插入同步模式的同步帧两次来执行可靠的密钥交换。 一种在无线电信道上隐藏消息密码通信的方法，包括以下步骤：通过加密从消息通信终端接收的纯文本来创建密码（S51）; 当没有密码时创建随机数据; 以及发送由密码和随机数据构成的比特流（S57）。 创建密码的步骤包括将同步帧插入密码的头部的步骤。 同步帧包括用于区分密码与随机数据的同步模式，以及用于解码密码的密钥信息。
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公开(公告)号：KR1020130130622A
公开(公告)日：2013-12-02
申请号：KR1020130016983
申请日：2013-02-18
Applicant: 한국전자통신연구원
IPC: G06F7/58
Abstract: A random number generating method using low power microprocessor and a device therefor are disclosed. The random number generating method includes a step that the microprocessor determines whether external power is supplied to a random number generator, a step that the microprocessor updates an internal state of the random number generator with a first method when the external power is supplied, and a step that the microprocessor updates the internal state of the random number generator with a second method different from the first method when the external power is not supplied. [Reference numerals] (301) External power supply;(302) Power switching circuit;(303) Battery;(304) Hardware noise source;(305) Low-power micro processor;(307) Random number generation algorithm unit;(308) Initial value providing unit
Abstract translation: 公开了一种使用低功率微处理器及其装置的随机数生成方法。 随机数生成方法包括以下步骤：微处理器确定是否向随机数发生器提供外部电力;当外部电源被提供时，微处理器利用第一种方法来更新随机数发生器的内部状态;以及 当不提供外部电源时，微处理器利用与第一种方法不同的第二种方法来更新随机数发生器的内部状态。 （301）外部电源;（302）电源开关电路;（303）电池;（304）硬件噪声源;（305）低功率微处理器;（307）随机数生成算法单元;（308） ）初始值提供单元
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Patent Agency Ranking
公开(公告)号：KR100906766B1
公开(公告)日：2009-07-09
申请号：KR1020070059545
申请日：2007-06-18
Applicant: 한국전자통신연구원
CPC classification number: H04L9/0891 , G10L19/00 , H04K1/00 , H04L9/12 , H04L2209/80
Abstract: 본 발명은 단방향 무선 통신 환경에서 암호화된 디지털 음성을 전송할 때 키 재동기 과정에서 발생하는 묵음구간에 대응하는 음성 데이터 값을 사인파를 그리는 음성의 특징을 이용하여 예측하는 장치 및 방법에 관한 것으로, 키 재동기 정보의 전송을 위해, 상기 키 재동기 정보와 함께 음성 데이터에 대한 벡터 정보를 삽입하여 키 재동기 프레임을 생성하고, 상기 생성된 키 재동기 프레임을 전송하는 송신부와; 상기 송신부로부터 키 재동기 프레임을 수신하면, 상기 키 재동기 프레임 내에 삽입되어 있는 음성 데이터에 대한 벡터 정보를 추출하여 상기 키 재동기 구간의 음성 데이터 예측을 수행하는 수신부를 포함하여 구성되며, 기 수신된 데이터를 기반으로 기울기의 변화율을 계산하여 원음을 예측함으로써 기존의 방식보다 좀 더 나은 음질 향상 효과를 얻을 수 있다.
단방향 통신, 음성 통신, 암호화, 키 재동기, 늦은 참여, 기울기 변화율-
公开(公告)号：KR1020080111311A
公开(公告)日：2008-12-23
申请号：KR1020070059545
申请日：2007-06-18
Applicant: 한국전자통신연구원
CPC classification number: H04L9/0891 , G10L19/00 , H04K1/00 , H04L9/12 , H04L2209/80
Abstract: An apparatus for transmitting/receiving voice data capable of estimating voice data of re-synchronization section and method thereof are provided to improve communication quality by using property of voice data value indicating slow change. An apparatus for transmitting/receiving voice data capable of estimating voice data of re-synchronization section includes a transmission unit(10) and a receiving unit(20). The transmission unit generates a key re-synchronization frame by inserting vector information about a voice data together with key re-synchronization information to transmit the key re-synchronization information, and transmits a generated key re-synchronization frame. The receiving unit receives the key re-synchronization frame from the transmission unit, and predicts the voice data of the re-synchronization section by extracting the vector information about the voice data.
Abstract translation: 提供一种用于发送/接收能够估计再同步部分的语音数据的装置及其方法，用于通过使用指示慢速变化的语音数据值的属性来提高通信质量。 用于发送/接收能够估计再同步部分的语音数据的语音数据的装置包括传输单元（10）和接收单元（20）。 发送单元通过插入关于语音数据的向量信息和密钥再同步信息来生成密钥再同步帧，以发送密钥再同步信息，并发送生成的密钥重新同步帧。 接收单元从发送单元接收密钥再同步帧，并且通过提取关于语音数据的向量信息来预测重新同步部分的语音数据。
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公开(公告)号：KR1020080107747A
公开(公告)日：2008-12-11
申请号：KR1020070055938
申请日：2007-06-08
Applicant: 한국전자통신연구원
CPC classification number: G11C16/14 , G11C16/08 , G11C16/26 , G11C16/3445
Abstract: A flash memory erasing apparatus and method is provided to prevent data from being read by unauthorized person by erasing data stored in the flash memory forcedly. In a flash memory(200) including a central processing unit(230), a connection circuit(140) between the central processing unit and the flash memory prevent data from the central processing unit from being transmitted to the flash memory after receiving an erasing signal which is generated in case of deleting the data of the flash memory or compulsorily disassemble the apparatus. A control logic(150) deletes the data of the flash memory by using power of a connected battery(110) in case that the erasing signal is generated.
Abstract translation: 提供闪存擦除装置和方法，以通过擦除存储在闪存中的数据来强制地防止未经授权的人读取数据。 在包括中央处理单元（230）的闪存（200）中，中央处理单元和闪速存储器之间的连接电路（140）在接收到擦除信号之后防止来自中央处理单元的数据被发送到闪速存储器 在删除闪速存储器的数据或强制拆卸设备的情况下产生。 在产生擦除信号的情况下，控制逻辑（150）通过使用连接的电池（110）的电力来删除闪速存储器的数据。
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19.发明公开키 재동기 구간의 음성 데이터를 예측하기 위한 벡터 정보삽입 방법, 전송 방법 및 벡터 정보를 이용한 키 재동기구간의 음성 데이터 예측 방법 失效关键重新同步中的语音数据估计的矢量信息的插入方法和传输方法以及使用向量信息的关键重新同步中的语音数据估计方法
公开(公告)号：KR1020080043198A
公开(公告)日：2008-05-16
申请号：KR1020070025571
申请日：2007-03-15
Applicant: 한국전자통신연구원
Abstract: A method for inserting vector information for predicting voice data of a key re-synchronization section, a transmission method and a method for predicting voice data of a key re-synchronization section using vector information are provided to predict a voice data value of a mute section by periodical key re-synchronization in direction wireless environment by using characteristics of a voice data value showing smooth variation, thereby improving communication quality in a receiving terminal. An inputted voice is encoded as voice data(200,210). It is determined whether a frame of voice data to be transmitted is a key re-synchronization point(220). If so, voice data of a current frame is deleted(230). From a difference between voice data of a previous frame and the voice data of the current frame, voice change direction information is obtained(231). By using the extracted voice change direction information of the voice data, vector information is configured(232). The vector information and key re-synchronization information are inserted into a section where the voice data is deleted in order to configure a key re-synchronization frame(233). After that, the configured key re-synchronization frame is transmitted(234).
Abstract translation: 提供一种用于插入用于预测密钥再同步部分的语音数据的矢量信息的方法，用于使用矢量信息预测密钥再同步部分的语音数据的传输方法和方法，以预测静音部分的语音数据值 通过使用表示平滑变化的语音数据值的特性，通过方向无线环境中的周期性密钥重新同步，从而提高接收终端的通信质量。 输入的语音被编码为语音数据（200,210）。 确定要发送的语音数据的帧是否是密钥再同步点（220）。 如果是，则删除当前帧的语音数据（230）。 根据前一帧的语音数据与当前帧的语音数据之间的差异，获得语音改变方向信息（231）。 通过使用所提取的语音数据的语音改变方向信息，配置矢量信息（232）。 向量信息和密钥重新同步信息被插入到语音数据被删除的部分中，以便配置密钥重新同步帧（233）。 之后，发送配置的密钥重新同步帧（234）。
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