Revocation of unread e-mail in an untrusted network
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We present protocols for enhancing e-mail systems to allow for secure revocation of messages. This paper identifies the security requirements for e-mail revocation and then shows how our protocols adhere to these requirements. Three different levels of security and threat models are described. We discuss our implementation of the level 1 protocol, which assumes no security infrastructure. The protocols were designed so that existing mailers can easily be enhanced with these new features.
KeywordsShared Secret Security Requirement Electronic Mail Random String Incoming Message
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