BRPI0410309A - método de criptografação baseado em algoritmo de 'des' - Google Patents

método de criptografação baseado em algoritmo de 'des'

Info

Publication number
BRPI0410309A
BRPI0410309A BRPI0410309-2A BRPI0410309A BRPI0410309A BR PI0410309 A BRPI0410309 A BR PI0410309A BR PI0410309 A BRPI0410309 A BR PI0410309A BR PI0410309 A BRPI0410309 A BR PI0410309A
Authority
BR
Brazil
Prior art keywords
algorithm
des
packet
encryption method
based encryption
Prior art date
Application number
BRPI0410309-2A
Other languages
English (en)
Inventor
Jorge Vicente Blasco Claret
Juan Carlos Riveiro Insua
Maria Esteve Lloret
Original Assignee
Dise O De Sist S En Silicio S
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 Dise O De Sist S En Silicio S filed Critical Dise O De Sist S En Silicio S
Publication of BRPI0410309A publication Critical patent/BRPI0410309A/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
    • H04L9/06—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
    • 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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • 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
    • H04L2209/08—Randomization, e.g. dummy operations or using noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Storage Device Security (AREA)
  • Small-Scale Networks (AREA)

Abstract

"MéTODO DE CRIPTOGRAFAçãO BASEADO EM ALGORITMO DE 'DES'". Aplicável em sistemas de comunicações no envio de dados entre equipamento de nós de usuário conectado a uma rede. é o mesmo caracterizado pelo fato de que compreende fazer gerar chaves aleatórias (6) que são diferentes para cada pacote, as quais são usadas para codificarem cada pacote por meio do algoritmo de codificação de DES, e o envio do cabeçalho do pacote dessa chave aleatória (6), por sua vez codificado (9) por meio de um algoritmo mais seguro do que o algoritmo de DES, que permite o aperfeiçoamento na segurança de transmissões em um meio não seguro ao qual estão conectados os nós e equipamento de usuário de um sistema de telecomunicações utilizando o procedimento da invenção em vez do algoritmo de codificação de DES.
BRPI0410309-2A 2003-05-13 2004-05-11 método de criptografação baseado em algoritmo de 'des' BRPI0410309A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200301104A ES2219183B2 (es) 2003-05-13 2003-05-13 Procedimiento de cifrado basado en el algoritmo des.
PCT/ES2004/000206 WO2004102869A1 (es) 2003-05-13 2004-05-11 Procedimiento de cifrado basado en el algoritmo des

Publications (1)

Publication Number Publication Date
BRPI0410309A true BRPI0410309A (pt) 2006-05-23

Family

ID=33443025

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0410309-2A BRPI0410309A (pt) 2003-05-13 2004-05-11 método de criptografação baseado em algoritmo de 'des'

Country Status (14)

Country Link
US (1) US20060147041A1 (pt)
EP (1) EP1624607A1 (pt)
JP (1) JP2007500481A (pt)
KR (1) KR20060011999A (pt)
CN (1) CN1788451A (pt)
AU (1) AU2004239872A1 (pt)
BR (1) BRPI0410309A (pt)
CA (1) CA2525552A1 (pt)
EA (1) EA008652B1 (pt)
ES (1) ES2219183B2 (pt)
IL (1) IL171920A0 (pt)
MX (1) MXPA05012234A (pt)
TW (1) TWI265711B (pt)
WO (1) WO2004102869A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100591007C (zh) * 2007-10-30 2010-02-17 威盛电子股份有限公司 加密与解密方法
KR20100089228A (ko) * 2009-02-03 2010-08-12 삼성전자주식회사 멀티미디어 컨텐트의 전송 스트림 암호화 방법 및 그 장치,복호화 방법 및 그 장치
JP6009563B2 (ja) * 2011-07-25 2016-10-19 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 安全なエンドツーエンド接続を確立するための方法、デバイス、及びシステム、並びに、データパケットを安全に通信するための方法、デバイス、及びシステム
CN102932135A (zh) * 2012-10-25 2013-02-13 福建升腾资讯有限公司 一种3des加密方法
US9460302B2 (en) 2014-01-21 2016-10-04 Cofactor Computing Llc Method and system for shielding data in transit and data in memory
US9336363B2 (en) 2014-01-21 2016-05-10 Cofactor Computing Llc Method and system for secure deployment of information technology (IT) solutions in untrusted environments
US9209971B2 (en) * 2014-01-21 2015-12-08 Cofactor Computing Llc Method and system for shielding data in untrusted environments
CN106714146A (zh) * 2015-11-13 2017-05-24 广西咪付网络技术有限公司 一种蓝牙ble设备的通信加密方法
CN107156917B (zh) * 2017-06-30 2023-12-01 上海烟草集团有限责任公司 电子烟烟弹加密芯片、烟弹及电子烟
CN109274857B (zh) * 2018-09-17 2020-01-10 长安大学 一种基于jpeg加密图像的加密算法安全性验证方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274229A (en) * 1992-12-19 1994-07-13 Ibm Cryptography system.
JPH07297819A (ja) * 1994-04-12 1995-11-10 Tandem Comput Inc ネットワーク伝送のために個人の照合とメッセージ認証の暗号化とを組み合わせ処理する方法および手段
JPH08335040A (ja) * 1995-06-02 1996-12-17 Fujitsu Ltd 暗号化処理方式
US6167136A (en) * 1997-05-16 2000-12-26 Software Security, Inc. Method for preventing copying of digital video disks
US6278783B1 (en) * 1998-06-03 2001-08-21 Cryptography Research, Inc. Des and other cryptographic, processes with leak minimization for smartcards and other cryptosystems
JP4273535B2 (ja) * 1998-05-12 2009-06-03 ソニー株式会社 データ伝送制御方法、データ伝送システム、データ受信装置及びデータ送信装置

Also Published As

Publication number Publication date
EP1624607A1 (en) 2006-02-08
IL171920A0 (en) 2006-04-10
KR20060011999A (ko) 2006-02-06
ES2219183A1 (es) 2004-11-16
ES2219183B2 (es) 2006-02-01
EA200501738A1 (ru) 2006-06-30
US20060147041A1 (en) 2006-07-06
MXPA05012234A (es) 2006-02-08
TWI265711B (en) 2006-11-01
TW200507574A (en) 2005-02-16
JP2007500481A (ja) 2007-01-11
CA2525552A1 (en) 2004-11-25
WO2004102869A1 (es) 2004-11-25
EA008652B1 (ru) 2007-06-29
AU2004239872A1 (en) 2004-11-25
CN1788451A (zh) 2006-06-14

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Legal Events

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

Free format text: REFERENTE A 6A E 7A ANUIDADE(S).

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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2139 DE 03/01/2012.