Certificateless Key Agreement Protocols under Strong Models

Autor(es)

Goya, Denise H. ; Nakamura, Dionathan ; Terada, Routo

• Tipo de documento: Artigo Científico
• Fonte: IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES; v. E99A, n. 10, p. 1822-1832, OCT 2016.
• Citações Web of Science: 0

Resumo

Two new authenticated key agreement protocols in the certificateless setting are presented in this paper. Both are proved secure in the extended Canetti-Krawczyk model, under the BDH assumption. The first one is more efficient than the Lippold et al.'s (LBG) protocol, and is proved secure in the same security model. The second protocol is proved secure under the Swanson et al.'s security model, a weaker model. As far as we know, our second proposed protocol is the first one proved secure in the Swanson et al.'s security model. If no pre-computations are done, the first protocol is about 26% faster than LBG, and the second protocol is about 49% faster than LBG, and about 31% faster than the first one. If pre-computations of some operations are done, our two protocols remain faster. (AU)

• Processo FAPESP: 08/06189-0 - Criptografia de chave pública sem certificado
• Beneficiário: Denise Hideko Goya
• Linha de fomento: Bolsas no Brasil - Doutorado
• Processo FAPESP: 15/01587-0 - Armazenagem, modelagem e análise de sistemas dinâmicos para aplicações em e-Science
• Beneficiário: João Eduardo Ferreira
• Linha de fomento: Auxílio à Pesquisa - Programa eScience e Data Science - Temático