公开(公告)号：WO99067918A2

公开(公告)日：1999-12-29

申请号：PCT/IB1999/001151

申请日：1999-06-21

IPC: H04L9/24 ,  H04L9/18

CPC classification number: H04L9/0662 ,  H04L9/12 ,  H04L2209/125

Abstract: A synchronous data-stream generator, suitable for use as a synchronous stream cipher providing copy right protection for audio/video data, generates a stream of output data items in synchronisation with a clock trigger. The data-stream generator comprises at least two parallel arranged subgenerators, Mi, i >/= 1, such as linear feedback shift registers. The output of the subgenerators Mi is combined forming the output data items of the data-stream generator. A control subgenerator C is used for generating a stream of control data items. Control means (150) comprises for at least one subgenerator Mi an associated number selector Si for, in dependence on the control data item of the control subgenerator C, selecting a number ni,j from a group Hi of different integer numbers. At least two numbers of the group Hi are larger than zero. The control means (150) causes the associated subgenerator Mi to provide at the output the selected ni,j-th data item successive to a last generated data item (effectively skipping ni,j-1 data items).

Abstract translation: 适用于为音频/视频数据提供复制权保护的同步数据流密码的同步数据流生成器与时钟触发同步地生成输出数据流。 数据流生成器包括至少两个平行布置的子发生器，诸如线性反馈移位寄存器。 组合子生成器Mi的输出形成数据流生成器的输出数据项。 控制子产生器C用于产生控制数据项流。 控制装置（150）包括用于至少一个子发生器Mi的相关联的数字选择器Si，用于根据控制子发生器C的控制数据项，从不同整数的组Hi中选择数量ni，j。 组Hi的至少两个数大于零。 控制装置（150）使得相关联的子发生器Mi在输出端提供连续到最后生成的数据项目（有效地跳过ni，j-1个数据项）的所选择的第ni，第j个数据项。

公开(公告)号：WO99045674A1

公开(公告)日：1999-09-10

申请号：PCT/JP1998/000883

申请日：1998-03-04

IPC: H04L9/18 ,  H04L9/26 ,  G09C1/00

CPC classification number: H04L9/0662 ,  H04L2209/34

Abstract: An automatic encoding/decoding system with which useless arithmetic processings can be eliminated from an arbitrary position and efficient decoding can be performed. When plain text data are encoded, pseudorandom numbers which are used for encoding the next plain text data are generated by a first pseudorandom number generating means in accordance with encoded data encoded immediately before. The next plain text data are encoded into coded data by an encoding means by using the pseudorandom numbers. When coded data are decoded, pseudorandom numbers for decoding are generated by a second pseudorandom number generating means in accordance with the first coded data of continuous coded data, and the next coded data of the continuous code data are decoded into plain text data by a decoding means by using the pseudorandom numbers generated by the second pseudorandom number generating means. Thus, useless arithmetic processings can be eliminated from an arbitrary position and efficient decoding can be performed.

Abstract translation: 可以从任意位置消除无用的算术处理的自动编码/解码系统，并且可以执行有效的解码。 当纯文本数据被编码时，用于编码下一个纯文本数据的伪随机数由第一伪随机数生成装置根据紧接在之前编码的编码数据生成。 下一个纯文本数据通过使用伪随机数由编码装置编码成编码数据。 当解码编码数据时，根据连续编码数据的第一编码数据由第二伪随机数产生装置产生用于解码的伪随机数，并且连续码数据的下一个编码数据通过解码被解码为纯文本数据 通过使用由第二伪随机数产生装置产生的伪随机数来表示。 因此，可以从任意位置消除无用的算术处理，并且可以执行有效的解码。

公开(公告)号：WO99045673A1

公开(公告)日：1999-09-10

申请号：PCT/SE1999/000172

申请日：1999-02-09

IPC: G06F7/58 ,  G09C1/00 ,  H04L9/22

CPC classification number: H04L9/0662 ,  H04L2209/12

Abstract: A method, and associated apparatus, for generating a pseudo-random number sequence. Determinations are made of compatible configurations of windmill generators (100) for a selected windmill polynomial. Implementation of a windmill generator (100) is made through use of word-oriented memory elements (104). Words stored in the memory elements (104) are selectively outputted to form portions of a pseudo-random number sequence.

Abstract translation: 一种用于生成伪随机数序列的方法和相关联的装置。 确定用于所选风车多项式的风车发电机（100）的兼容配置。 通过使用面向字的存储器元件（104）来实现风车发电机（100）的实现。 选择性地输出存储在存储元件（104）中的字以形成伪随机数序列的部分。

公开(公告)号：WO9800770A3

公开(公告)日：1998-02-12

申请号：PCT/US9711636

申请日：1997-07-01

Applicant: ALLSOFT DISTRIBUTING INC

Inventor： COLVIN BRYAN SR

IPC: H04L9/18 ,  H04K1/00

CPC classification number: H04L9/0662

Abstract: A system for enhancing an existing data encryption system by preprocessing (2) or postprocessing (8) the data stream as it enters or leaves the encryption system (5 and 7). This external processing makes the encrypted data stream much more difficult to analyze by introducing data content dependencies into the modified, encrypted data stream.

公开(公告)号：WO1996037065A1

公开(公告)日：1996-11-21

申请号：PCT/NO1996000117

申请日：1996-05-14

Applicant: DEFA A/S ,  ROREN, Sigurd

Inventor： DEFA A/S

IPC: H04L09/32

CPC classification number: G07C9/00182 ,  G07C9/00023 ,  G07C2009/00253 ,  G07C2009/00793 ,  H04L9/0662 ,  H04L9/12 ,  H04L9/3226 ,  H04L9/3297 ,  H04L2209/80

Abstract: The present invention relates to a system comprising a method and a transmitter receiver arrangement for use in transmitting and receiving a message including a code which prevents unintentional use of said message. For the object of obtaining better security against unauthorized registration of said message, it is according to the invention suggested that to the message there is added a time information which in the transmitter is generated by a clock, and which in the receiver is checked by a synchronous clock. Only when the time information in the received message corresponds to the clock of the receiver the message is accepted. The timing information can be encrypted using a pseudo random code, which is transmitted together with the message.

Abstract translation: 本发明涉及一种包括一种方法和发射机接收机装置的系统，该方法和发射机接收机装置用于发送和接收包括防止无意地使用所述消息的代码的消息。 为了获得对所述消息的未经授权注册的更好的安全性的目的，根据本发明，建议对消息添加一个时间信息，其中发送器中的时钟信息是由时钟产生的，并且在接收机中通过一个 同步时钟 只有当接收到的消息中的时间信息对应于接收者的时钟时，消息被接受。 可以使用与消息一起发送的伪随机码来加密定时信息。

公开(公告)号：WO1994021066A1

公开(公告)日：1994-09-15

申请号：PCT/AU1994000101

申请日：1994-03-04

Applicant: TELSTRA CORPORATION LIMITED ,  TAYLOR, Richard

Inventor： TELSTRA CORPORATION LIMITED

IPC: H04L09/26

CPC classification number: H04L9/0662 ,  H04L9/0643

Abstract: A method and apparatus for generating a message authentication code (mac) or integrity check value (icv) for a digital message to be transmitted by way of a telecommunications medium. Modular arithmetic to a prime modulus is utilised to combine message data and pseudo-random cipher data so as to produce a mac or icv which has a cryptographic strength comparable to that of the source of cipher data. The method for generating the mac can be performed iteratively, this being suitable for use with stream cipher encryption methods.

Abstract translation: 一种用于生成要通过电信媒体发送的数字消息的消息认证码（mac）或完整性校验值（icv）的方法和装置。 将模数运算用于质数模数用于组合消息数据和伪随机密码数据，以产生具有与密码数据源的密码强度相当的密码强度的mac或icv。 可以迭代地执行用于生成mac的方法，这适合于使用流密码加密方法。

公开(公告)号：WO1987003442A1

公开(公告)日：1987-06-04

申请号：PCT/US1986001868

申请日：1986-09-10

Applicant: WEISS, Jeffrey, A.

IPC: H04L09/02

CPC classification number: H04L9/12 ,  H04L1/1657 ,  H04L9/0662 ,  H04L2209/34

Abstract: A synchronization method and corresponding apparatus for transmitting or storing encrypted data breaks the data into blocks and appends to each block an error detection code which is calculated from the encrypted data block plus a unique sequence number. The sequence number is generated by a local counter and may be the number of bits, bauds, or characters transmitted and received since a previous resynchronization. The error correcting code is transmitted or stored with the encrypted data block, but although the sequence number is appended to the data block for error code calculation purposes, it is not actually transmitted or stored with the encrypted data and error correcting code. When the encrypted data is retrieved or received, the receiving apparatus appends to the received data blocks a sequence number derived from a local counter which is synchronized to the counter at the transmitting or storing apparatus and a new error detecting code is calculated for comparison to the error detecting code received or retrieved with the encrypted data. A mismatch between the error detecting codes indicates a transmission or synchronization error for that block. In either case the data block can be retransmitted.

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：WO2018031597A1

公开(公告)日：2018-02-15

申请号：PCT/US2017/045992

申请日：2017-08-08

Applicant: GOOGLE LLC

Inventor： KREUTER, Benjamin ,  SETH, Karn ,  PATEL, Sarvar

IPC: H04L29/06 ,  H04L9/08 ,  H04L9/00

CPC classification number: H04L63/06 ,  H04L9/0662 ,  H04L9/0841 ,  H04L9/085 ,  H04L9/0894 ,  H04L63/04

Abstract: Systems and methods for data aggregation based on one-time pad based sharing is/are described, including receiving a first plurality of key shares and a second plurality of key shares, wherein each of the first plurality of key shares and each of the second plurality of key shares comprises a share of a secure key based on a secret sharing scheme, and transmitting one of the first plurality of key shares for an apparatus in a transmission state, and transmitting one of the second plurality of key shares for the apparatus not in the transmission state.

Abstract translation: 描述了用于基于基于一次性基于垫的共享的数据聚合的系统和方法，包括接收第一多个密钥份和第二多个密钥份，其中第一多个密钥份 密钥份额和第二多个密钥份额中的每一个包括基于秘密共享方案的安全密钥的份额，并且针对处于传输状态的装置发送第一多个密钥份额中的一个，并且发送第二多个 未处于传输状态的设备的密钥份额。

公开(公告)号：WO2017055214A1

公开(公告)日：2017-04-06

申请号：PCT/EP2016/072848

申请日：2016-09-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： CRONIN, John ,  GOGUEN, Jonathan ,  HUFFINES, Christopher

IPC: A61B5/145 ,  A61B5/00 ,  G06F19/00 ,  H04L9/08

CPC classification number: A61B5/0022 ,  A61B5/02438 ,  A61B5/082 ,  A61B5/145 ,  A61B5/14532 ,  A61B5/14551 ,  A61B5/4842 ,  A61B2503/045 ,  A61B2505/01 ,  A61B2505/07 ,  G06F19/00 ,  G06F19/32 ,  G16H40/67 ,  H04L9/0662 ,  H04L9/0825 ,  H04L9/0894 ,  H04L9/3213

Abstract: A method for transmitting and receiving pulse oximetry data comprising: transmitting pulse oximeter sensor data to a pulse oximeter monitor; encrypting the transmitted pulse oximeter data by the pulse oximeter monitor; transmitting the encrypted data to a cloud-based medical service; sending back the encrypted data from the cloud-based medical service to the pulse oximeter monitor, where the data is decrypted and displayed; 5 generating a random number by the pulse oximeter monitor via a random number generator that is triggered by a random number on the sensor, creating a unique ID for a device pulse oximeter monitor for a device; and sending the unique ID over the cloud for each event.

Abstract translation: 一种用于发送和接收脉搏血氧饱和度数据的方法，包括：向脉搏血氧计监测器发送脉搏血氧计传感器数据; 通过脉搏血氧计监测器加密传输的脉搏血氧仪数据; 将加密的数据传输到基于云的医疗服务; 将加密的数据从基于云的医疗服务发送回脉搏血氧计监视器，数据被解密和显示; 5通过由传感器上的随机数触发的随机数发生器由脉搏血氧计监视器生成随机数，为装置创建用于装置脉搏血氧计监测器的唯一ID; 并为每个事件发送云上的唯一ID。