公开(公告)号：WO2004010627A1

公开(公告)日：2004-01-29

申请号：PCT/US2003/021578

申请日：2003-07-10

Applicant: APPLIED MINDS, INC.

Inventor： HILLIS, W., Daniel ,  FERREN, Bran ,  HOWE, Russel ,  ENO, Brian

IPC: H04K1/00

CPC classification number: H04K1/02 ,  G10K11/175 ,  G10K15/02 ,  G10L21/00 ,  G10L21/06 ,  H04K1/06 ,  H04K3/825 ,  H04K2203/12

Abstract: A simple and efficient method for producing an obfuscated speech signal which may be used to mask a stream of speech, is disclosed. A speech signal representing the speech stream to be masked is obtained (110). The speech signal (200) is then temporally partitioned (120) into segments (250), preferably corresponding to phonemes within the speech stream. The segments are then stored (130) in a memory (135), and some or all of the segments are subsequently selected (138), retrieved (140), and assembled (150) into an obfuscated speech signal (300) representing an unintelligible speech stream that, when combined with the speech signal or reproduced (160) and combined with the speech stream, provides a masking effect. While the presently preferred embodiment finds application most readily in an open plan office, embodiments suitable for use in restaurants, classrooms, and in telecommunications systems are also disclosed.

Abstract translation: 公开了一种用于产生可用于掩蔽语音流的混淆语音信号的简单有效的方法。 获得表示待屏蔽的语音流的语音信号（110）。 语音信号（200）然后在时间上被分割（120）成段（250），优选地对应于语音流内的音素。 然后将段存储（130）到存储器（135）中，并且随后选择（138），检索（140）和组装（150）中的一些或全部段，使其成为表示无法理解的模糊语音信号（300） 语音流，当与语音信号或再现（160）组合并与语音流组合时，提供掩蔽效果。 虽然目前优选的实施例在开放式办公室中最容易应用，但是也公开了适用于餐馆，教室和电信系统中的实施例。

公开(公告)号：WO2013059170A1

公开(公告)日：2013-04-25

申请号：PCT/US2012/060382

申请日：2012-10-16

Applicant: SANDISK TECHNOLOGIES INC.

Inventor： SHARON, Eran ,  ALROD, Idan ,  NAVON, Ariel

IPC: H04K1/06 ,  H04L9/34 ,  G11B20/00

CPC classification number: G11B20/0021 ,  G11B2220/60 ,  H04K1/06 ,  H04L9/34

Abstract: A method includes, in a data storage device, receiving data having a particular proportion of zero values and one values and scrambling the data to generate scrambled data that has the particular proportion of zero values and one values.

Abstract translation: 一种方法包括在数据存储设备中接收具有特定比例的零值和一个值的数据，并对数据进行加扰以产生具有特定比例的零值和一个值的加扰数据。

公开(公告)号：WO1987000377A1

公开(公告)日：1987-01-15

申请号：PCT/US1986001364

申请日：1986-06-26

Applicant: CODART COMMUNICATIONS, INC.

Inventor： CODART COMMUNICATIONS, INC. ,  MAISEL, Douglas, Andrew ,  McREYNOLDS, John, Frederick ,  WEISMAN, Joe ,  CARLSON, Charles, Edward

IPC: H04M01/70

CPC classification number: H04K1/06 ,  H04L9/0662 ,  H04L9/0822 ,  H04L2209/60

Abstract: A novel time-element scrambling system and the component parts thereof for communication over a non-secure communication link (40, 80) such as a telephone line. The scrambling and unscrambling operations are specified by a scrambling code which is exchanged by the two apparatuses (10, 10) at each end of the communication link (40, 80) in an encrypted form (using a public-key code) when the communication link (40, 80) is first established. Thereafter, each apparatus (10) uses the scrambling code to scramble its communications with the other apparatus (10). The generation of these two codes and their exchange by the two apparatuses (10, 10) is transparent to the users. The manner in which the codes are generated guarantees that the next code that will be generated may not be predicted by examining the apparatus (10) in question at any time substantially in advance of the time at which the communication link (40, 80) is established or afterward.

Abstract translation: 一种新颖的时间元扰乱系统及其组成部分，用于通过诸如电话线路的非安全通信链路（40,80）进行通信。 扰频和解扰操作由通信链路（40,80）的每一端的两个设备（10,10）以加密形式（使用公开密钥码）交换的扰码指定，当通信 链接（40,80）首先建立。 此后，每个装置（10）使用扰码来加密与其他装置（10）的通信。 这两个代码的产生及其由两个装置（10,10）的交换对于用户是透明的。 产生代码的方式保证通过在基本上提前通信链路（40,80）为时间的时间的任何时间检查所讨论的设备（10），不能预测将生成的下一个代码 建立或以后。

公开(公告)号：WO2016155913A1

公开(公告)日：2016-10-06

申请号：PCT/EP2016/052084

申请日：2016-02-01

Applicant: ALCATEL LUCENT

Inventor： CHEN, Yejian

IPC: H04B10/116 ,  H04B10/50 ,  H04B10/60 ,  H04J14/00

CPC classification number: H04L9/065 ,  H04B10/116 ,  H04B10/50 ,  H04B10/60 ,  H04J14/00 ,  H04J14/0202 ,  H04K1/00 ,  H04K1/006 ,  H04K1/06

Abstract: This application relates to a method of transmitting multiple data streams via multiple optical transmission units adapted for optical communication using wavelength division multiplexing. The method comprises a first encryption step of encrypting each of a plurality of data streams to obtain a respective encrypted data stream, a mapping step of mapping the plurality of encrypted data streams obtained in the first encryption step to a plurality of transmission streams for transmission via the optical transmission units, wherein the transmission streams and optical transmission units are in a one-to-one relationship, and wherein each transmission stream is mapped to by at least two of the plurality of encrypted data streams, a second encryption step of encrypting each of the plurality of transmission streams to obtain a respective encrypted transmission stream, and a transmission step of transmitting each of the plurality of encrypted transmission streams obtained in the second encryption step via a respective optical transmission unit. The application further relates to a method of receiving multiple encrypted transmission streams via multiple optical reception units adapted for optical communication using wavelength division multiplexing, to a transmission device for transmitting multiple data streams via multiple optical transmission units adapted for optical communication using wavelength division multiplexing, and a to a reception device for receiving multiple encrypted transmission streams via multiple optical reception units adapted for optical communication using wavelength division multiplexing.

Abstract translation: 本申请涉及一种通过适用于使用波分复用的光通信的多个光传输单元发送多个数据流的方法。 该方法包括对多个数据流中的每一个进行加密以获得相应的加密数据流的第一加密步骤，将在第一加密步骤中获得的多个加密数据流映射到多个传输流以进行传输的映射步骤 所述光传输单元，其中所述传输流和光传输单元是一对一的关系，并且其中每个传输流被所述多个加密数据流中的至少两个映射到所述多个加密数据流中的第二加密步骤， 以获得各自的加密传输流，以及发送步骤，通过相应的光传输单元发送在第二加密步骤中获得的多个加密传输流中的每一个。 本申请还涉及一种通过适用于使用波分复用的光通信的多个光接收单元接收多个加密传输流的方法，用于经由适用于使用波分复用的光通信的多个光传输单元发送多个数据流的传输设备， 以及一个接收装置，用于经由适于使用波分复用的光通信的多个光接收单元接收多个加密的传输流。

公开(公告)号：WO2011000786A1

公开(公告)日：2011-01-06

申请号：PCT/EP2010/059076

申请日：2010-06-25

Applicant: ALCATEL LUCENT ,  MARCEROU, Jean-François ,  LAVAL, Carine ,  DUPONT, Sébastien

Inventor： MARCEROU, Jean-François ,  LAVAL, Carine ,  DUPONT, Sébastien

IPC: H04J14/02

CPC classification number: H04J14/0227 ,  H04K1/04 ,  H04K1/06

Abstract: A method of transmitting optical signals in a submarine optical network and an optical unit for performing the method, the optical unit is configured for receiving an optical signal comprising a plurality of wavelengths where at least some of the wavelengths comprise traffic data. The optical unit includes a processor unit which is configured for scrambling the shape of at least one wavelength comprising traffic data of the optical signal so as to make said traffic data of said at least one wavelength undetectable for a receiver station.

Abstract translation: 一种在海底光网络和用于执行该方法的光学单元中发送光信号的方法，所述光学单元被配置为用于接收包括多个波长的光信号，其中至少一些波长包括业务数据。 光学单元包括处理器单元，其被配置为对包括光信号的业务数据的至少一个波长的形状进行加扰，以使得所述至少一个波长的所述业务数据对于接收机站不可检测。

公开(公告)号：WO2009099458A1

公开(公告)日：2009-08-13

申请号：PCT/US2008/064970

申请日：2008-05-28

Applicant: KOOLSPAN, INC. ,  FASCENDA, Anthony, C. ,  STURNIOLO, Emil ,  CICHIELO, Robert ,  BENWARE, Paul

Inventor： FASCENDA, Anthony, C. ,  STURNIOLO, Emil ,  CICHIELO, Robert ,  BENWARE, Paul

IPC: H04M1/66

CPC classification number: G10L19/24 ,  H04K1/06 ,  H04L1/0014 ,  H04L1/007 ,  H04L63/0428

Abstract: A method of processing a codec sample is provided. The method includes: removing from a first portion of the codec sample, a first number of first information bits. The first information bits are indicative of frame information associated with the codec sample. The method also includes inserting at the first portion of the codec sample from a second portion of the codec sample, a second number of data bits. The first number of the first information bits is greater than or equal to the second number of the data bits. The method also includes removing the second portion of the codec sample. The method may also include encrypting and decrypting the codec sample. In some embodiments, the codec sample is an adaptive multi-rate codec sample. In some embodiments, the adaptive multi-rate codec sample is a 5.15 mode adaptive multi-rate codec sample.

Abstract translation: 提供了一种处理编解码器样本的方法。 该方法包括：从编解码器采样的第一部分移除第一数量的第一信息位。 第一信息比特指示与编解码器样本相关联的帧信息。 该方法还包括在编解码器采样的第二部分的第一部分处插入第二数量的数据位。 第一个信息位的第一个数目大于或等于第二个数据位数。 该方法还包括去除编解码器样本的第二部分。 该方法还可以包括加密和解密编解码器样本。 在一些实施例中，编解码器样本是自适应多速率编解码器样本。 在一些实施例中，自适应多速率编解码器采样是5.15模式自适应多速率编解码器样本。

公开(公告)号：WO2018114010A1

公开(公告)日：2018-06-28

申请号：PCT/EP2016/082625

申请日：2016-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  SCHOO, Peter

Inventor： SCHOO, Peter

IPC: H04W12/02 ,  H04K3/00 ,  H04K1/00 ,  H04K1/02 ,  H04K1/04 ,  H04K1/06 ,  H04L29/06

CPC classification number: H04W12/02 ,  H04K1/00 ,  H04K1/02 ,  H04K1/04 ,  H04K1/06 ,  H04K3/41 ,  H04K3/42 ,  H04K3/43 ,  H04K3/827 ,  H04K2203/12 ,  H04K2203/16 ,  H04K2203/18 ,  H04L63/1466 ,  H04L63/1483

Abstract: The present invention relates to a method and apparatus to prevent vibration-based re- identification of a wireless communication device. Existing wireless communication devices are extremely susceptible to eavesdropping and device tracking by reading out the device- specific frequency responses of devices when they are exposed to vibrations caused by their internal vibration motor. Consequently, the present invention aims at improving this situation by "fuzzying" of this vibration signal and it adopts following technical solution: the characteristics of a vibration signal like magnitude, frequency and phase with which a wireless communication device is vibrated are randomly varied to become unpredictably different. Attackers will have to put much more effort into the repetitive reading of sensor data of a device to produce characteristic data allowing for robust identification and tracking of devices.

公开(公告)号：WO2017190221A1

公开(公告)日：2017-11-09

申请号：PCT/CA2017/000118

申请日：2017-05-05

Applicant: SECURITE SPYTRONIC INC.

Inventor： SANTOS, Alexandre

IPC: H04K1/06 ,  H04K1/04

CPC classification number: G10L21/16 ,  H04K1/04 ,  H04K1/06 ,  H04K3/82 ,  H04K3/825 ,  H04K2203/12 ,  H04K2203/34

Abstract: A method, device, system and kit for preventing the intelligible voice recording Is provided. The voice of a subject or Interlocutor Is recorded for a given time Interval thereby providing a voice recording. The voice recording Is cut Into shorter time interval segments thereby providing a set of voice recording segments. The set of voice recording segments is mixed in a randomly rearranged order, The mixed set of voice recording segments is spliced into a single randomly mixed voice recording. Emitting the randomly mixed voice recording during speaking of the subject or interlocutor prevents the Intelligible recording of the voice of the subject or interlocutor.

Abstract translation: 提供了用于防止可理解的语音记录的方法，设备，系统和套件。 主题或对话者的声音在给定时间间隔内被记录，从而提供语音记录。 录音被切割成更短的时间间隔段，从而提供一组录音段。 该组语音录音段以随机重排的顺序混合，混合的一组录音段拼接成单个随机混合的录音。 在谈话对象或对话者期间发出随机混合的录音会阻碍对话者或对话者的语音的智能录音。

公开(公告)号：WO2005081934A3

公开(公告)日：2005-12-08

申请号：PCT/US2005005615

申请日：2005-02-23

Applicant: UNIV COLUMBIA ,  COOK DEBRA L ,  YUNG MARCEL MORDECHAY ,  KEROMYTIS ANGELOS D

Inventor： COOK DEBRA L ,  YUNG MARCEL MORDECHAY ,  KEROMYTIS ANGELOS D

IPC: H04K1/06

CPC classification number: H04K1/06

Abstract: In accordance with the present invention, computer implemented methods and systems are provided for converting an elastic block cipher from an original block cipher. The elastic block cipher accepts variable length inputs where the computation workload increases in proportion to the block size. To generate the elastic block cipher, the number of rounds in the block cipher is increased such that the round function is applied to each bit position at least the same number of times as the original block cipher. In addition, bits that are beyond the normal block size are left out of the round function and XORed and swapped with bits output from the round function to become part of the input to the next round.

Abstract translation: 根据本发明，提供了用于从原始块密码转换弹性块密码的计算机实现的方法和系统。 弹性块密码接受可变长度输入，计算量与块大小成比例增加。 为了生成弹性分组密码，分组密码中的循环次数增加，使得将循环函数应用于每个比特位置的次数至少与原始分组密码次数相同。 另外，超出正常块大小的位被舍弃在循环函数中，并且与从循环函数输出的位进行XOR并交换，以成为下一轮的输入的一部分。

公开(公告)号：WO2005081934A2

公开(公告)日：2005-09-09

申请号：PCT/US2005/005615

申请日：2005-02-23

Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ,  COOK, Debra, L. ,  YUNG, Marcel, Mordechay ,  KEROMYTIS, Angelos, D.

Inventor： COOK, Debra, L. ,  YUNG, Marcel, Mordechay ,  KEROMYTIS, Angelos, D.

IPC: H04K1/06

CPC classification number: H04K1/06

Abstract: In accordance with the present invention, computer implemented methods and systems are provided for converting an elastic block cipher from an original block cipher. The elastic block cipher accepts variable length inputs where the computation workload increases in proportion to the block size. To generate the elastic block cipher, the number of rounds in the block cipher is increased such that the round function is applied to each bit position at least the same number of times as the original block cipher. In addition, bits that are beyond the normal block size are left out of the round function and XORed and swapped with bits output from the round function to become part of the input to the next round.

Abstract translation: 根据本发明，提供了计算机实现的方法和系统，用于从原始块密码转换弹性块密码。 弹性块密码接受可变长度输入，其中计算工作量与块大小成比例地增加。 为了产生弹性块密码，块密码中的轮数增加，使得向每个比特位置施加与原始块密码至少相同次数的舍入函数。 此外，超出正常块大小的位将不在循环函数中，并且与来自循环函数输出的位进行异或运算，以成为下一轮输入的一部分。