BRPI0517323A - método e aparelho para a criptografia de comunicação pelo ar em um sistema de comunicação sem fio - Google Patents

método e aparelho para a criptografia de comunicação pelo ar em um sistema de comunicação sem fio

Info

Publication number
BRPI0517323A
BRPI0517323A BRPI0517323-0A BRPI0517323A BRPI0517323A BR PI0517323 A BRPI0517323 A BR PI0517323A BR PI0517323 A BRPI0517323 A BR PI0517323A BR PI0517323 A BRPI0517323 A BR PI0517323A
Authority
BR
Brazil
Prior art keywords
symbols
communication device
encryption
symbol
phase shift
Prior art date
Application number
BRPI0517323-0A
Other languages
English (en)
Inventor
Michael N Kloos
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of BRPI0517323A publication Critical patent/BRPI0517323A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/006—Secret communication by varying or inverting the phase, at periodic or random intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/002—Countermeasures against attacks on cryptographic mechanisms
    • H04L9/003—Countermeasures against attacks on cryptographic mechanisms for power analysis, e.g. differential power analysis [DPA] or simple power analysis [SPA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • H04L9/0897—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage involving additional devices, e.g. trusted platform module [TPM], smartcard or USB
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

MéTODO E APARELHO PARA A CRIPTOGRAFIA DE COMUNICAçãO PELO AR EM UM SISTEMA DE COMUNICAçãO SEM FIO. Um dispositivo de comunicação (202) criptograf a simbolos em uma camada física para melhorar a criptografia dos dados transmitidos por um enlace sem fio. Um mapeador de simbolos (208) do dispositivo de comunicação recebe um fluxo de bits que compreende múltiplos bits e mapeia os múltiplos bits para múltiplos simbolos. Um ajustador de amplitude e de fase (210) do dispositivo de comunicação recebe os múltiplos simbolos e criptograf a os simbolos ao aplicar pelo menos um de um deslocamento de fase e um ajuste da amplitude a cada símbolo para produzir múltiplos simbolos criptografados para transmissão por um enlace sem fio. Em outra versão da presente invenção, é fornecido um dispositivo de comunicação (250) que é capaz de descriptografar os simbolos criptografados ao aplicar pelo menos um de um deslocamento de fase e um ajuste da amplitude a cada símbolo criptografado que corresponde aodeslocamento de fase ou ao ajuste de amplitude aplicado ao símbolo por um dispositivo de comunicação de transmissão.
BRPI0517323-0A 2004-09-23 2005-09-12 método e aparelho para a criptografia de comunicação pelo ar em um sistema de comunicação sem fio BRPI0517323A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/947,724 US7693284B2 (en) 2004-09-23 2004-09-23 Method and apparatus for encryption of over-the-air communications in a wireless communication system
PCT/US2005/032540 WO2006036532A2 (en) 2004-09-23 2005-09-12 Method and apparatus for encryption of wireless communication

Publications (1)

Publication Number Publication Date
BRPI0517323A true BRPI0517323A (pt) 2008-10-07

Family

ID=36073951

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0517323-0A BRPI0517323A (pt) 2004-09-23 2005-09-12 método e aparelho para a criptografia de comunicação pelo ar em um sistema de comunicação sem fio

Country Status (10)

Country Link
US (1) US7693284B2 (pt)
EP (1) EP1794917A4 (pt)
JP (1) JP2008514159A (pt)
KR (1) KR100904817B1 (pt)
CN (1) CN101053191A (pt)
AU (1) AU2005289939B2 (pt)
BR (1) BRPI0517323A (pt)
CA (1) CA2579983C (pt)
MX (1) MX2007003454A (pt)
WO (1) WO2006036532A2 (pt)

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EP2122955B1 (en) * 2007-01-16 2016-03-30 Koninklijke Philips N.V. Improved freqeuncy estimation in a data communication system
US8370622B1 (en) * 2007-12-31 2013-02-05 Rockstar Consortium Us Lp Method and apparatus for increasing the output of a cryptographic system
US8270602B1 (en) * 2009-08-13 2012-09-18 Sandia Corporation Communication systems, transceivers, and methods for generating data based on channel characteristics
US9420336B1 (en) * 2009-11-05 2016-08-16 Cisco Technology, Inc. Localization of customer premises equipment in a digital communication network
CN102299759B (zh) * 2010-06-24 2013-12-04 上海贝尔股份有限公司 用于获取预编码矩阵的方法以及装置
CN102130768B (zh) * 2010-12-20 2012-11-07 西安西电捷通无线网络通信股份有限公司 一种具有链路层加解密能力的终端设备及其数据处理方法
US8873760B2 (en) * 2010-12-21 2014-10-28 Motorola Mobility Llc Service key delivery system
KR101446629B1 (ko) 2013-07-17 2014-10-06 한국전자통신연구원 무선 통신 시스템에서 보안 데이터 전송 장치 및 방법
WO2016194196A1 (ja) * 2015-06-04 2016-12-08 三菱電機株式会社 送信装置および受信装置
US10243735B2 (en) * 2015-11-24 2019-03-26 Raytheon Company Device and method for modulated waveform encryption
GB2553754B (en) * 2016-07-27 2018-09-12 Cambium Networks Ltd Encryption for a synchronous wireless link
JP6819342B2 (ja) 2017-02-15 2021-01-27 富士通株式会社 送信装置、受信装置、送信方法、及び受信方法
CN108234062A (zh) * 2017-12-19 2018-06-29 中国电子科技集团公司第三十研究所 一种基于空口信号特征复杂化的安全传输方法
EP4038749A1 (en) * 2019-09-30 2022-08-10 Nokia Technologies Oy Physical layer security by pseudo-random layer mapping

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Also Published As

Publication number Publication date
KR20070055557A (ko) 2007-05-30
WO2006036532A2 (en) 2006-04-06
KR100904817B1 (ko) 2009-06-25
AU2005289939A1 (en) 2006-04-06
US7693284B2 (en) 2010-04-06
EP1794917A4 (en) 2010-03-17
AU2005289939B2 (en) 2009-04-23
CA2579983C (en) 2011-05-17
JP2008514159A (ja) 2008-05-01
CA2579983A1 (en) 2006-04-06
WO2006036532A3 (en) 2006-12-21
CN101053191A (zh) 2007-10-10
EP1794917A2 (en) 2007-06-13
MX2007003454A (es) 2007-10-10
US20060062319A1 (en) 2006-03-23

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)

Free format text: INDEFERIDO(S) O(S) PEDIDO(S) DE ALTERACAO(OES) DE NOME CONTIDO(S) NA PETICAO NO 020130025885-RJ, DE 28/03/2013, TENDO EM VISTA O DISPOSTO NO 6O, DO ART. 16, DA LEI 9.279/96.

B25D Requested change of name of applicant approved

Owner name: MOTOROLA MOBILITY, LLC (US)

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 11A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.