Autenticação do remetente em servidor de e-mail com assinatura baseada na identidade

Abstract

Due to the great number of undesired messages which overload our email boxes, mechanisms that prevent or make the delivery of such messages more difficult are being researched. Although the authentication of senders does not directly prevent the delivery of such messages, it establishes trust in the addresses which allow reputation lists to be used. This essay proposes the use of indenty-based signature as a mechanism of the sender s authentication. The authentication made on the server, with the use of criptographic techniques, avoids waste of resources. Identity-based digital signature with the use of paring over elliptic curves is more efficient than the ordinary mechanisms.