BR0312866A - autenticação e criptografia eficientes para sistemas de processamento de dados - Google Patents

autenticação e criptografia eficientes para sistemas de processamento de dados

Info

Publication number
BR0312866A
BR0312866A BRPI0312866-0A BR0312866A BR0312866A BR 0312866 A BR0312866 A BR 0312866A BR 0312866 A BR0312866 A BR 0312866A BR 0312866 A BR0312866 A BR 0312866A
Authority
BR
Brazil
Prior art keywords
data
authentication
encryption
processing systems
data processing
Prior art date
Application number
BRPI0312866-0A
Other languages
English (en)
Inventor
Philip Michael Hawkes
Gregory G Rose
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0312866A publication Critical patent/BR0312866A/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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • 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
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • 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
    • H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
    • 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
    • H04L9/3242—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions involving keyed hash functions, e.g. message authentication codes [MACs], CBC-MAC or HMAC

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Storage Device Security (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

AUTENTICAçãO E CRIPTOGRAFIA EFICIENTES PARA SISTEMAS DE PROCESSAMENTO DE DADOS São apresentados métodos e equipamento para criptografar e autenticar dados, em que alguns dados são criptografados e alguns dados não são criptografados, mas todos os dados são autenticados. Formulações diferentes para blocos de autenticação são utilizadas de acordo com um bloco de dados que ocupa uma posição de texto claro (442A, 442B, 442C) ou posição de texto cifrado (444A, 444B, 444C, 444D). Os blocos de autenticação são então combinados de modo a formar uma soma de verificação, que é criptografada de modo a formar um indicador de autenticação.
BRPI0312866-0A 2002-07-24 2003-07-24 autenticação e criptografia eficientes para sistemas de processamento de dados BR0312866A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/205,114 US6948067B2 (en) 2002-07-24 2002-07-24 Efficient encryption and authentication for data processing systems
PCT/US2003/023561 WO2004034182A2 (en) 2002-07-24 2003-07-24 Efficient encryption and authentication for data processing systems

Publications (1)

Publication Number Publication Date
BR0312866A true BR0312866A (pt) 2007-07-10

Family

ID=30769992

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0312866-0A BR0312866A (pt) 2002-07-24 2003-07-24 autenticação e criptografia eficientes para sistemas de processamento de dados

Country Status (8)

Country Link
US (1) US6948067B2 (pt)
EP (1) EP1529368A4 (pt)
CN (1) CN100576789C (pt)
AU (1) AU2003296887B2 (pt)
BR (1) BR0312866A (pt)
CA (1) CA2493567A1 (pt)
RU (1) RU2336646C2 (pt)
WO (1) WO2004034182A2 (pt)

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WO2004070998A2 (en) * 2003-01-31 2004-08-19 Kaleidescape, Inc. Recovering from de-synchronization attacks against watermarking and fingerprinting
US20050091496A1 (en) * 2003-10-23 2005-04-28 Hyser Chris D. Method and system for distributed key management in a secure boot environment
KR100830801B1 (ko) * 2004-02-04 2008-05-20 주식회사 케이티 동영상 데이터 암호화 송수신방법
JP2006039206A (ja) * 2004-07-27 2006-02-09 Canon Inc 暗号化装置および復号化装置
US7512814B2 (en) * 2004-11-09 2009-03-31 Fortiva Inc. Secure and searchable storage system and method
US8677123B1 (en) 2005-05-26 2014-03-18 Trustwave Holdings, Inc. Method for accelerating security and management operations on data segments
EP1955472B1 (en) 2005-12-01 2016-06-29 Telefonaktiebolaget LM Ericsson (publ) Key management
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GB2443244A (en) * 2006-10-05 2008-04-30 Hewlett Packard Development Co Authenticated Encryption Method and Apparatus
FR2918830B1 (fr) * 2007-07-13 2009-10-30 Viaccess Sa Verification de code mac sans revelation.
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US10447657B2 (en) * 2008-08-22 2019-10-15 Qualcomm Incorporated Method and apparatus for transmitting and receiving secure and non-secure data
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US20130028419A1 (en) * 2011-07-26 2013-01-31 Debabrata Das System and a method for use in a symmetric key cryptographic communications
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EP2909962B1 (en) * 2012-11-29 2018-02-28 BlackBerry Limited Authenticated encryption method using working blocks
US20140244514A1 (en) * 2013-02-26 2014-08-28 Digimarc Corporation Methods and arrangements for smartphone payments and transactions
US9311640B2 (en) 2014-02-11 2016-04-12 Digimarc Corporation Methods and arrangements for smartphone payments and transactions
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US9456344B2 (en) 2013-03-15 2016-09-27 Ologn Technologies Ag Systems, methods and apparatuses for ensuring proximity of communication device
US9698991B2 (en) 2013-03-15 2017-07-04 Ologn Technologies Ag Systems, methods and apparatuses for device attestation based on speed of computation
WO2014174044A1 (en) * 2013-04-24 2014-10-30 Nec Europe Ltd. Method and system for encrypting data
TW201448655A (zh) 2013-05-10 2014-12-16 Ologn Technologies Ag 用於確保ｗｉｆｉ通訊器件之近接的系統、方法與裝置
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JP6557727B2 (ja) * 2014-12-03 2019-08-07 ナグラビジョン エス アー メッセージを暗号化／復号化するためのブロック暗号方法及びこの方法を実施するための暗号装置
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Also Published As

Publication number Publication date
EP1529368A2 (en) 2005-05-11
AU2003296887A1 (en) 2004-05-04
US6948067B2 (en) 2005-09-20
RU2005104953A (ru) 2005-07-20
RU2336646C2 (ru) 2008-10-20
AU2003296887B2 (en) 2008-04-17
US20040019785A1 (en) 2004-01-29
CA2493567A1 (en) 2004-04-22
CN1682483A (zh) 2005-10-12
WO2004034182A3 (en) 2005-02-03
WO2004034182A2 (en) 2004-04-22
EP1529368A4 (en) 2010-05-19
CN100576789C (zh) 2009-12-30

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Legal Events

Date Code Title Description
B15I Others concerning applications: loss of priority

Free format text: PERDA DA PRIORIDADE REIVINDICADA NO US 10 / 205,114 DE 24/07/2002, POR NAO ESTAR EM CONFORMIDADE COM OS PARAGRAFOS 6O E 7O (DO ART. 16 DA LPI.

B150 Others concerning applications: publication cancelled

Free format text: PUBLICADA NA RPI 2016, DE 25/08/2009, POR TER SIDO INDEVIDA.

B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A 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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2162 DE 12/06/2012.