公开(公告)号：US20230076011A1

公开(公告)日：2023-03-09

申请号：US17469760

申请日：2021-09-08

申请人： PassiveLogic, Inc.

发明人： Marciano Preciado ,  Sterling Thomas Sleight ,  Jeremy David Fillingim

IPC分类号： G09C1/10 ,  H03M7/40

摘要： After installation, a device may be asleep. A light signal device may send a message to the sleeping device to wake it up. This wake-up message may comprise the light signal device sending programmed light signals, the programmed light signals in modified morse code. An authentication part may also be included in the message. The light signal device may request an authentication message from the sleeping device.

公开(公告)号：US08024573B2

公开(公告)日：2011-09-20

申请号：US11242851

申请日：2005-10-05

申请人： Dirk Westhoff ,  Joao Girao

发明人： Dirk Westhoff ,  Joao Girao

IPC分类号： G09C1/10

CPC分类号： H04W12/06 ,  H04L9/3236 ,  H04L9/3271 ,  H04L63/065 ,  H04L63/08 ,  H04L2209/38 ,  H04L2209/805 ,  H04W12/04 ,  H04W84/18

摘要： A method for authentication of elements of a group, especially for authentication of sensor nodes in a preferably wireless sensor network is disclosed. The group has one specific element—leading element—with which each of the group elements can exchange information and wherein the authentication of the group elements takes place with regard to the leading element. The leading element sends an authentication request to the group elements wherein the authentication request is the same for all the group elements. The group elements each send authentication responses—based on the authentication request—to the leading element, with the authentication responses being different for each group element.

摘要翻译： 公开了一种用于认证组的元件的方法，特别是用于在优选无线传感器网络中的传感器节点的认证。 该组具有一个特定的元素领先元素，其中每个组元素可以交换信息，并且其中组元素的认证相对于前导元素发生。 前导元素向组元素发送认证请求，其中认证请求对于所有组元素是相同的。 每个组元素根据身份验证请求发送认证响应到主要元素，认证响应对于每个组元素是不同的。

公开(公告)号：US5930365A

公开(公告)日：1999-07-27

申请号：US839684

申请日：1997-04-14

申请人： Takaaki Nakamura

发明人： Takaaki Nakamura

IPC分类号： G09C1/00 ,  G09C1/10 ,  H04B14/04 ,  H04L9/06 ,  H04L9/38 ,  H04L9/00

CPC分类号： H04L9/06 ,  H04L2209/12

摘要： The invention provides a digital data shuffling/de-shuffling system so that information data is not understood or deciphered by unauthorized third party. Included are a system for generating plural bits of digital data to be transmitted, a circuit network 7 having a plurality of input terminals #1 through #8 and output terminals #11 through #18 equal to the number of bits to be transmitted and a plurality of switching circuits S for selectively cross connecting or non-cross connecting between two lines out of a plurality of transmission lines a.sub.1 through a.sub.8 interconnecting the corresponding input and output terminals, and a control circuit P for controlling the plurality of switching circuits S. The control circuit P is controlled to shuffle the data applied to the input terminals #1 through #8 for providing the shuffled output from the output terminals #11 through #18.

摘要翻译： 本发明提供一种数字数据混洗/去混洗系统，使得信息数据不被未经授权的第三方理解或解密。 包括用于生成要发送的数字数据的多个位的系统，具有多个输入端子＃1至＃8的电路网络7以及等于要发送的位数的多个输出端子＃11至＃18的多个 用于选择性地将互连相应的输入和输出端的多个传输线a1至8中的两条线之间的交叉连接或非交叉连接的开关电路S和用于控制多个开关电路S的控制电路P.控制 电路P被控制以混洗施加到输入端子＃1至＃8的数据，以提供来自输出端子＃11至＃18的混洗输出。

公开(公告)号：US5608654A

公开(公告)日：1997-03-04

申请号：US315352

申请日：1994-09-30

申请人： Junichi Matsunoshita

发明人： Junichi Matsunoshita

IPC分类号： H04N1/40 ,  G06T9/00 ,  H04N1/41 ,  H04N19/126 ,  H04N19/134 ,  H04N19/136 ,  H04N19/149 ,  H04N19/192 ,  H04N19/194 ,  H04N19/196 ,  H04N19/423 ,  H04N19/60 ,  H04N19/625 ,  G09C1/10

CPC分类号： H04N19/184 ,  H04N19/115 ,  H04N19/126 ,  H04N19/15 ,  H04N19/172 ,  H04N19/176 ,  H04N19/60 ,  H04N19/146

摘要： An image coding apparatus wherein coding processing is performed efficiently and the generated code amount is controlled to a substantially fixed level is disclosed. The image coding apparatus comprises a setting circuit for setting a coding parameter, a coding circuit for coding input image data using the coding parameter, a code amount measurement circuit for measuring the amount of codes generated by the coding circuit, an aimed code amount setting circuit for setting an aimed code amount, a calculation circuit for calculating a code amount difference between the aimed code amount and the generated code amount, and a coding parameter control apparatus for controlling the coding parameter of the setting circuit in accordance with the code amount difference such that the setting circuit first sets an initial value as the coding parameter and then sets, in accordance with the code amount difference calculated from the amount of codes newly generated using the initial value, another value as the coding parameter to be used for next coding for the same image data.

摘要翻译： 公开了一种图像编码装置，其中编码处理被有效地执行并且生成的代码量被控制到基本上固定的水平。 图像编码装置包括用于设置编码参数的设置电路，用于使用编码参数对输入图像数据进行编码的编码电路，用于测量由编码电路产生的代码量的代码量测量电路，目标代码量设置电路 用于设定目标代码量的计算电路，用于计算目标代码量与生成代码量之间的代码量差的计算电路，以及编码参数控制装置，用于根据代码量差等来控制设置电路的编码参数 设置电路首先将初始值设置为编码参数，然后根据从使用初始值新产生的代码量计算的代码量差设置另一个值作为用于下一个编码的编码参数 相同的图像数据。

公开(公告)号：US4322577A

公开(公告)日：1982-03-30

申请号：US154403

申请日：1979-08-21

申请人： Hugo Brandstrom

发明人： Hugo Brandstrom

IPC分类号： G09C1/00 ,  G09C1/10 ,  H04L9/00 ,  H04L9/06

CPC分类号： H04L9/0618 ,  H04L2209/12

摘要： Encryption and decryption of information of a message is performed by partitioning a plaintext message into blocks of binary digits and by further partitioning said blocks into subblocks which are interpreted as elements in a Galois-field. A plaintext matrix (M) of said elements is multiplied by a first key matrix (A) of a group over said Galois-field, the resulting product M.multidot.A) being multiplied by a second key matrix (B) of the same group over said Galois-field. The final product (B.multidot.M.multidot.A) thus received constitutes the encrypted message block (K). Decryption is performed by multiplying the transmitted product (B.multidot.M.multidot.A) by inverse key matrices (A.sup.-1, B.sup.-1) generated by the same keys (a, b) as used for decryption and taken in the proper order. (FIG. 2)

摘要翻译： 通过将明文消息分割成二进制数字块并通过进一步将所述块划分为被解释为伽罗瓦域中的元素的子块来执行消息的信息的加密和解密。 所述元素的明文矩阵（M）乘以所述伽罗瓦域上的组的第一密钥矩阵（A），所得到的乘积MxA）乘以相同组的第二密钥矩阵（B）在所述Galois -领域。 如此接收的最终产品（BxMxA）构成加密消息块（K）。 通过将所发送的乘积（BxMxA）乘以由用于解密的相同密钥（a，b）生成的逆矩阵（A-1，B-1）并以正确的顺序进行解密来执行解密。 （图。

公开(公告)号：US4229817A

公开(公告)日：1980-10-21

申请号：US901068

申请日：1978-04-28

申请人： Barrie O. Morgan ,  Merlon B. Carter

发明人： Barrie O. Morgan ,  Merlon B. Carter

IPC分类号： G09C1/10 ,  H04L9/00 ,  H04L9/10 ,  H04K1/02

CPC分类号： G09C1/10

摘要： The specification discloses a portable cryptographic device, adapted to be hand-held through solid state electronics, which possesses the capability for enciphering and deciphering plain text. The housing of the device has a keyboard for the input of plain text or cipher text, including numeric characters and control signals and, further, has a display for displaying the inputs. Circuitry within the device is responsive to the inputs and controls the display. Additional circuitry enciphers or deciphers the inputs and substitutes the resulting text into the display.The device incorporates a random code generator for generating a randomized message key which, together with the keyboard inputs, initiates and generates a long sequence of randomized letters for enciphering purposes. In a deciphering mode, a predetermined message key may be entered to set the random code generator at a point to generate the originally entered plain text. Also, a basic key composed of multiple segments fully initializes the random code generator such that more than one device could be used to encipher and decipher text. Similarly, by using different segments of the basic key, varying levels of security can be obtained.Test circuitry is also provided to insure maintenance of the proper key variables and proper operation of the device.

摘要翻译： 本说明书公开了一种适用于通过固态电子手持式的便携式密码装置，其具有加密和解密纯文本的能力。 设备的外壳具有用于输入明文或密文的键盘，包括数字字符和控制信号，并且还具有用于显示输入的显示。 设备内的电路响应输入并控制显示。 附加电路加密或解密输入，并将结果文本替换为显示。 该装置包括用于产生随机化消息密钥的随机码发生器，随机消息密钥与键盘输入一起发起并产生用于加密目的的长序列随机字母。 在解密模式中，可以输入预定的消息密钥以将随机码生成器设置在一个点上，以生成原始输入的纯文本。 此外，由多个段组成的基本密钥完全初始化随机码发生器，使得可以使用多于一个设备来加密和解密文本。 类似地，通过使用基本密钥的不同段，可以获得不同级别的安全性。 还提供测试电路以确保正确的键变量的维护和设备的正确操作。

公开(公告)号：US2265715A

公开(公告)日：1941-12-09

申请号：US33794440

申请日：1940-05-29

申请人： STUART BACON HENRY

发明人： STUART BACON HENRY

IPC分类号： G09C1/10

CPC分类号： G09C1/14

公开(公告)号：US1745008A

公开(公告)日：1930-01-28

申请号：US10281326

申请日：1926-04-17

申请人： COLMAN HOWARD D

发明人： COLMAN HOWARD D

IPC分类号： G09C1/10

CPC分类号： H04L17/00 ,  H04L17/02

公开(公告)号：US20190042201A1

公开(公告)日：2019-02-07

申请号：US16077514

申请日：2017-03-03

申请人： Politecnico Di Milano

发明人： Daniele Ielmini ,  Simone Balatti ,  Stefano Ambrogio

IPC分类号： G06F7/58 ,  G09C1/10 ,  H04L9/08 ,  G11C13/00

摘要： The invention relates to a device for generating random numbers, comprising a pair of memristors. The pair of memristors comprises a first and a second memristor, each memristor of the pair in turn comprises a top electrode, a bottom electrode and an intermediate layer adapted to switch resistance in response to predetermined voltage values applied between the top electrode and the bottom electrode. Each memristor is operatively connected to an output terminal by means of its bottom electrode. A control logic is connected to the memristors for applying suitable voltages necessary to determine a change of resistance in at least one memristor of the pair.

公开(公告)号：US09270462B2

公开(公告)日：2016-02-23

申请号：US13942011

申请日：2013-07-15

申请人： Grey Heron Technologies, LLC

发明人： David L. Parrish

IPC分类号： H04L9/28 ,  G09C1/00 ,  G09C1/10 ,  H04L9/06

CPC分类号： H04L9/28 ,  G09C1/00 ,  G09C1/10 ,  H04L9/0662

摘要： A method is provided for processing a digital information set having a plurality of information bytes. The method comprises receiving the information set, determining a set of initialization parameters, initializing a set of state variables using the set of initialization parameters, and generating a plurality of cryptors, each cryptor being a virtual dynamic array containing a monoalphabetic cipher. The method further comprises modifying the state variables and one or more of the cryptors, setting the index value for each cryptor in the plurality of cryptors; and selecting an ordered cryptor subset to be applied to an information byte. The information byte is processed using the ordered cryptor subset to produce a processed information byte. If the information byte is a plaintext byte, the processed byte is an encrypted byte, and vice versa. The actions of modifying, setting, selecting, and processing are then repeated for each remaining information byte.