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    • 1. 发明授权
    • Method of generating random number using nonvolatile memory in two-track scheme and apparatus for the same
    • 在双轨方案中使用非易失性存储器生成随机数的方法及其装置的方法
    • US08972470B2
    • 2015-03-03
    • US13595186
    • 2012-08-27
    • Dae-Seon ParkIn-Seok KangHaeng-Seok KoByeong-Ho Ahn
    • Dae-Seon ParkIn-Seok KangHaeng-Seok KoByeong-Ho Ahn
    • G06F1/02
    • G06F7/588
    • A method of generating a random number using nonvolatile memory and an apparatus for the same are provided. The method of generating a random number includes reading random number state information from nonvolatile memory when power is supplied; updating the random number state of a random number generator using the random number state information and a saving entropy source, thereby producing updated random number state information; storing the updated random number state information in the nonvolatile memory; updating a random number state of the random number generator using the updated random number state information and a generating entropy source, thereby producing a generating random number state information; and producing a random number to be used in an application program using the generating random number state information and the generating entropy source.
    • 提供一种使用非易失性存储器产生随机数的方法及其装置。 产生随机数的方法包括在供电时从非易失性存储器读取随机数状态信息; 使用随机数状态信息和保存熵源来更新随机数发生器的随机数状态,由此产生更新的随机数状态信息; 将所述更新的随机数状态信息存储在所述非易失性存储器中; 使用更新的随机数状态信息和生成熵源来更新随机数发生器的随机数状态,从而产生生成随机数状态信息; 并且使用生成随机数状态信息和生成熵源来产生将在应用程序中使用的随机数。
    • 2. 发明授权
    • Cipher communication method and apparatus for the same
    • 密码通信方法及装置相同
    • US08787573B2
    • 2014-07-22
    • US13572458
    • 2012-08-10
    • Taek-Jun NamByeong-Ho Ahn
    • Taek-Jun NamByeong-Ho Ahn
    • H04L9/00
    • H04L63/0428H04L63/068
    • A cipher communication method for an encryption apparatus an includes: receiving a second encryption key while performing a cipher communication using a first encryption key; storing encryption key input information on the first and second encryption keys in a static region; copying the stored encryption key input information into a dynamic region; selecting any one of the first and second encryption keys based on the copied encryption key input information and current time information; generating encryption key position information and encryption key selection information on the selected encryption key; and transmitting a cipher text and the encryption key selection information to another encryption apparatus connected to the encryption apparatus through a network such that the another encryption apparatus acquires an encryption key to decrypt the cipher text.
    • 一种用于加密装置的密码通信方法包括:在使用第一加密密钥执行密码通信的同时接收第二加密密钥; 在第一和第二加密密钥的静态区域中存储加密密钥输入信息; 将存储的加密密钥输入信息复制到动态区域中; 基于复制的加密密钥输入信息和当前时间信息来选择第一和第二加密密钥中的任何一个; 对所选择的加密密钥生成加密密钥位置信息和加密密钥选择信息; 以及通过网络将密文和加密密钥选择信息发送到与加密装置连接的另一加密装置,使得另一加密装置获取加密密钥来解密密文。
    • 3. 发明申请
    • METHOD OF INSERTING VECTOR INFORMATION FOR ESTIMATING VOICE DATA IN KEY RE-SYNCHRONIZATION PERIOD, METHOD OF TRANSMITTING VECTOR INFORMATION, AND METHOD OF ESTIMATING VOICE DATA IN KEY RE-SYNCHRONIZATION USING VECTOR INFORMATION
    • 在关键重新同步期间插入用于估计语音数据的矢量信息的方法,发送矢量信息的方法以及使用向量信息的关键重新同步估计语音数据的方法
    • US20080112565A1
    • 2008-05-15
    • US11745402
    • 2007-05-07
    • TaekJun NamByeong-Ho AhnKi-Hong KimYongick ChungSang-Yi Yi
    • TaekJun NamByeong-Ho AhnKi-Hong KimYongick ChungSang-Yi Yi
    • H04K1/00
    • G10L19/167
    • Disclosed are a method of inserting vector information for estimating voice data in a key re-synchronization period, a method of transmitting vector information, and a method of estimating voice data in a key re-synchronization period using vector information, capable of estimating the voice data that corresponds to a silent period occurring in a key re-synchronization process when an encrypted digital voice is transmitted in a unidirectional wireless communication environment. A transmitter side inserts accumulation information (i.e., vector information) of a voice change direction of the transmitted previous frame in a key re-synchronization frame, using a voice feature that draws a sine wave, when making the key re-synchronization frame for the re-synchronization, and transmits the key re-synchronization frame with the vector information inserted thereto. A receiver side estimates the voice data value in the key re-synchronization period using the accumulation information (i.e., vector information) in the voice change direction and slopes of the received voice data, to minimize the difference between the original voice and the estimated voice.
    • 公开了一种在密钥重新同步期间插入用于估计语音数据的矢量信息的方法,发送矢量信息的方法以及使用能够估计语音的矢量信息来估计密钥再同步时段中的语音数据的方法 当在单向无线通信环境中发送加密的数字语音时,对应于在密钥重新同步过程中发生的静默时段的数据。 发射机侧在使用绘制正弦波的语音特征时,在密钥再同步帧中插入所发送的前一帧的语音改变方向的累积信息(即矢量信息),当为 重新同步,并且发送具有插入到其中的向量信息的密钥重新同步帧。 接收机侧使用语音改变方向上的累积信息(即,向量信息)和所接收的语音数据的斜率来估计密钥再同步周期中的语音数据值,以最小化原始语音和估计语音之间的差异 。