BR0309881A - dispositivo e método de comunicações de dados sem fio seguro para transmitir texto puro em uma mensagem criptografada - Google Patents

dispositivo e método de comunicações de dados sem fio seguro para transmitir texto puro em uma mensagem criptografada

Info

Publication number
BR0309881A
BR0309881A BRPI0309881-8A BR0309881A BR0309881A BR 0309881 A BR0309881 A BR 0309881A BR 0309881 A BR0309881 A BR 0309881A BR 0309881 A BR0309881 A BR 0309881A
Authority
BR
Brazil
Prior art keywords
encrypted message
key
plain text
text
random
Prior art date
Application number
BRPI0309881-8A
Other languages
English (en)
Inventor
Thomas Jay Billhartz
Frank Joseph Fleming
Original Assignee
Harris Corp
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 Harris Corp filed Critical Harris Corp
Publication of BR0309881A publication Critical patent/BR0309881A/pt

Links

Classifications

    • 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
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0457—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply dynamic encryption, e.g. stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/068—Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

"DISPOSITIVO E MéTODO DE COMUNICAçõES DE DADOS SEM FIO SEGURO PARA TRANSMITIR TEXTO PURO EM UMA MENSAGEM CRIPTOGRAFADA". Proporcionam-se uma rede (10) local ou de área metropolitana sem fio segura e dispositivos de comunicação de dados (11n) para a mesma, onde o dispositivo (11n) transmite texto puro em uma mensagem criptografada que inclui texto de uso restrito e um vetor de iniciação. O dispositivo pode incluir um gerador de semente (20) para realizar um algoritmo de uma via utilizando uma chave de segredo, um endereço de dispositivo, e um valor de referência de alteração para gerar uma semente. Além disso, um gerador (21) de vetor de iniciação (IV) aleatório pode ser incluído para gerar um IV aleatório, e um criptógrafo de chave (22) pode gerar uma seqüência de chave baseada na semente e no IV aleatório. Adicionalmente, um circuito lógico (23) pode ser incluído para gerar um texto de uso restrito baseado na chave de seqüência e no texto puro, e um dispositivo de comunicações sem fio (25) pode ser conectado ao circuito lógico (23) e ao gerador de IV aleatório (21) para transmissão sem fio da mensagem criptografada.
BRPI0309881-8A 2002-05-10 2003-05-07 dispositivo e método de comunicações de dados sem fio seguro para transmitir texto puro em uma mensagem criptografada BR0309881A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/143,153 US6931132B2 (en) 2002-05-10 2002-05-10 Secure wireless local or metropolitan area network and related methods
PCT/US2003/014324 WO2003096614A1 (en) 2002-05-10 2003-05-07 Secure wireless local or metropolitan area network and related methods

Publications (1)

Publication Number Publication Date
BR0309881A true BR0309881A (pt) 2007-04-10

Family

ID=29400044

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0309881-8A BR0309881A (pt) 2002-05-10 2003-05-07 dispositivo e método de comunicações de dados sem fio seguro para transmitir texto puro em uma mensagem criptografada

Country Status (9)

Country Link
US (2) US6931132B2 (pt)
EP (2) EP2996279B1 (pt)
JP (1) JP2005525047A (pt)
KR (1) KR20040104724A (pt)
CN (1) CN1726670A (pt)
AU (1) AU2003234521A1 (pt)
BR (1) BR0309881A (pt)
CA (1) CA2483880A1 (pt)
WO (1) WO2003096614A1 (pt)

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JP2005525047A (ja) 2005-08-18
AU2003234521A1 (en) 2003-11-11
EP2996279B1 (en) 2017-05-03
WO2003096614A1 (en) 2003-11-20
EP1508222A4 (en) 2009-07-22
KR20040104724A (ko) 2004-12-10
EP1508222A1 (en) 2005-02-23
US20050185794A1 (en) 2005-08-25
US6931132B2 (en) 2005-08-16
US8014526B2 (en) 2011-09-06
EP2996279A1 (en) 2016-03-16
US20030210788A1 (en) 2003-11-13
CN1726670A (zh) 2006-01-25
CA2483880A1 (en) 2003-11-20

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