BRPI0606238A2 - método, dispositivo e sistema de criptografia segura - Google Patents

método, dispositivo e sistema de criptografia segura

Info

Publication number
BRPI0606238A2
BRPI0606238A2 BRPI0606238-5A BRPI0606238A BRPI0606238A2 BR PI0606238 A2 BRPI0606238 A2 BR PI0606238A2 BR PI0606238 A BRPI0606238 A BR PI0606238A BR PI0606238 A2 BRPI0606238 A2 BR PI0606238A2
Authority
BR
Brazil
Prior art keywords
stream
full text
ciphertext
encryption method
secure encryption
Prior art date
Application number
BRPI0606238-5A
Other languages
English (en)
Inventor
Pak Kay Yuen
Original Assignee
Pak Kay Yuen
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 Pak Kay Yuen filed Critical Pak Kay Yuen
Publication of BRPI0606238A2 publication Critical patent/BRPI0606238A2/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • 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
    • 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
    • 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
    • H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
    • 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
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Abstract

Método, dispositivo e sistema de criptografia segura. Sistema, dispositivo e método de criptografia de informações em texto pleno de forma segura. O sistema inclui agente de transmissão para gerar e sincronizar primeiro fluxo cifrado utilizando as informações de texto pleno e primeira chave, para gerar e sincronizar segundo fluxo cifrado utilizando segunda chave e função de aleatorização para aleatorizar e sincronizar fluxo de texto pleno controlável para formar segundo fluxo de cifras sincronizado e para operar sobre a série de primeiro e segundo fluxos de cifras utilizando operador de disjunção exclusivo para obter fluxo de texto cifrado; e agente receptor para decifrar o fluxo de texto cifrado.
BRPI0606238-5A 2005-01-25 2006-01-19 método, dispositivo e sistema de criptografia segura BRPI0606238A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/041,436 US7751565B2 (en) 2005-01-25 2005-01-25 Secure encryption system, device and method
PCT/CN2006/000086 WO2006079277A1 (en) 2005-01-25 2006-01-19 Secure encryption system, device and method

Publications (1)

Publication Number Publication Date
BRPI0606238A2 true BRPI0606238A2 (pt) 2009-06-09

Family

ID=36740039

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0606238-5A BRPI0606238A2 (pt) 2005-01-25 2006-01-19 método, dispositivo e sistema de criptografia segura

Country Status (12)

Country Link
US (2) US7751565B2 (pt)
EP (1) EP1847064A1 (pt)
JP (1) JP2008529044A (pt)
KR (1) KR20070108186A (pt)
CN (1) CN101156347A (pt)
AU (1) AU2006208377A1 (pt)
BR (1) BRPI0606238A2 (pt)
CA (1) CA2595313A1 (pt)
MX (1) MX2007008936A (pt)
RU (1) RU2007132196A (pt)
WO (1) WO2006079277A1 (pt)
ZA (1) ZA200707007B (pt)

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Also Published As

Publication number Publication date
CN101156347A (zh) 2008-04-02
ZA200707007B (en) 2008-11-26
JP2008529044A (ja) 2008-07-31
CA2595313A1 (en) 2006-08-03
RU2007132196A (ru) 2009-03-10
WO2006079277A1 (en) 2006-08-03
US20060193472A1 (en) 2006-08-31
US7751565B2 (en) 2010-07-06
KR20070108186A (ko) 2007-11-08
US8595508B2 (en) 2013-11-26
MX2007008936A (es) 2007-12-06
AU2006208377A1 (en) 2006-08-03
US20100257368A1 (en) 2010-10-07
EP1847064A1 (en) 2007-10-24

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B08L Patent application lapsed because of non payment of annual fee [chapter 8.12 patent gazette]

Free format text: ARQUIVAMENTO DEFINITIVO

B08H Application fees: decision cancelled [chapter 8.8 patent gazette]

Free format text: ANULADA A PUBLICACAO CODIGO 8.12 NA RPI NO 2268 DE 24/06/2014 POR TER SIDO INDEVIDA.