Infra-estrutura de Chaves Públicas Otimizada: Uma ICP de Suporte a Assinaturas Eficientes para Documentos Eletrônicos

  • Martín Augusto Gagliotti Vigil UFSC
  • Nelson da Silva UFSC
  • Ricardo Moraes Universidade de Aveiro
  • Ricardo Felipe Custódio UFSC

Resumo


Neste trabalho estendem-se as idéias sobre a Infra-estrutura de Chaves Públicas Otimizada (ICPO) e os Certificados Otimizados (CO) em vários aspectos: (1) propõe-se a entidade Crypto Time, responsável pela publicação das provas Novomodo, reduzindo assim o custo operacional da AC Raiz da ICPO, (2) apresenta-se uma modificação para a semântica da validade do CO, (3) aborda-se uma solução de Carimbo do Tempo Relativo, (4) descreve-se a confiança dos usuários na Autoridade Certificadora de Certificados Otimizados e (5) mostra-se, através de um novo comparativo de custos, por que o CO é uma atraente alternativa para arquivamento a longo prazo.

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Publicado
28/09/2009
VIGIL, Martín Augusto Gagliotti; SILVA, Nelson da; MORAES, Ricardo; CUSTÓDIO, Ricardo Felipe. Infra-estrutura de Chaves Públicas Otimizada: Uma ICP de Suporte a Assinaturas Eficientes para Documentos Eletrônicos. In: SIMPÓSIO BRASILEIRO DE SEGURANÇA DA INFORMAÇÃO E DE SISTEMAS COMPUTACIONAIS (SBSEG), 9. , 2009, Campinas. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2009 . p. 129-142. DOI: https://doi.org/10.5753/sbseg.2009.20628.