BR0301721A - Sistema e métodos para saìda de placa de vìdeo segura - Google Patents

Sistema e métodos para saìda de placa de vìdeo segura

Info

Publication number
BR0301721A
BR0301721A BR0301721-4A BR0301721A BR0301721A BR 0301721 A BR0301721 A BR 0301721A BR 0301721 A BR0301721 A BR 0301721A BR 0301721 A BR0301721 A BR 0301721A
Authority
BR
Brazil
Prior art keywords
methods
pixel data
systems
data
video card
Prior art date
Application number
BR0301721-4A
Other languages
English (en)
Inventor
Glenn F Evans
Paul England
Original Assignee
Microsoft 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 Microsoft Corp filed Critical Microsoft Corp
Publication of BR0301721A publication Critical patent/BR0301721A/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/606—Protecting data by securing the transmission between two devices or processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

"SISTEMAS E MéTODOS PARA SAìDA DE PLACA DE VìDEO SEGURA". Trata-se de diversos métodos e sistemas que são descritos aqui que estão direcionados para o fornecimento de um canal seguro para execução de software em um computador principal. Os métodos e sistemas tratam e proporcionam soluções para um modelo de ataque em que a execução de software desonesto no computador principal tenta obter dados de maneira imprópria ou, de outro modo, manipulá-los. Algumas modalidades podem proporcionar dados de pixel que podem ser mantidos em estado confidencial (pelo fato de que aplicativos de software não confiáveis não podem ler os dados da tela de exibição). Em adição, outras modalidades podem preservar a integridade dos dados de pixel por meio da detecção de se os dados de pixel foram manipulados de maneira imprópria. Diversas modalidades são baseadas em uma máquina de descriptografação que está localizada em uma placa de vídeo muito depois na cadeia de processamento de vídeo tal que o acesso programático a dados de pixel descriptografados é negado.
BR0301721-4A 2002-06-24 2003-05-27 Sistema e métodos para saìda de placa de vìdeo segura BR0301721A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/178,804 US8155314B2 (en) 2002-06-24 2002-06-24 Systems and methods for securing video card output

Publications (1)

Publication Number Publication Date
BR0301721A true BR0301721A (pt) 2004-08-24

Family

ID=27733938

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0301721-4A BR0301721A (pt) 2002-06-24 2003-05-27 Sistema e métodos para saìda de placa de vìdeo segura

Country Status (14)

Country Link
US (2) US8155314B2 (pt)
EP (1) EP1378809A3 (pt)
JP (1) JP2004062885A (pt)
CN (1) CN100350395C (pt)
AU (1) AU2003204378B2 (pt)
BR (1) BR0301721A (pt)
CA (1) CA2427367A1 (pt)
MX (1) MXPA03004371A (pt)
MY (1) MY140378A (pt)
NO (1) NO20032888L (pt)
PL (1) PL360330A1 (pt)
RU (1) RU2327215C2 (pt)
TW (1) TW200401234A (pt)
ZA (1) ZA200303552B (pt)

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Also Published As

Publication number Publication date
NO20032888L (no) 2003-12-29
EP1378809A2 (en) 2004-01-07
EP1378809A3 (en) 2005-01-12
MY140378A (en) 2009-12-31
MXPA03004371A (es) 2005-02-14
PL360330A1 (en) 2003-12-29
ZA200303552B (en) 2003-11-10
AU2003204378B2 (en) 2009-05-07
US8155314B2 (en) 2012-04-10
CN1470998A (zh) 2004-01-28
RU2327215C2 (ru) 2008-06-20
US8738929B2 (en) 2014-05-27
US20030235303A1 (en) 2003-12-25
CA2427367A1 (en) 2003-12-24
CN100350395C (zh) 2007-11-21
NO20032888D0 (no) 2003-06-23
TW200401234A (en) 2004-01-16
AU2003204378A1 (en) 2004-01-15
JP2004062885A (ja) 2004-02-26
US20120166816A1 (en) 2012-06-28

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Legal Events

Date Code Title Description
B03H Publication of an application: rectification [chapter 3.8 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: CONFORME ARTIGO 10O DA RESOLUCAO 124/06, CABE SER ARQUIVADO REFERENTE AO NAO RECOLHIMENTO DA 8A E 9A ANUIDADES.

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: NAO APRESENTADA A GUIA DE CUMPRIMENTO DE EXIGENCIA. REFERENTE A 8A ANUIDADE.