Country | : |
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Department | : | Singapore Management University |
Project Title | : | Multiplex Encryption a Practical Approach to Encrypting Multi-Recipient Emails |
Researcher | : | CHEN, Kefei , Wei, Wei , DING, Xuhua |
Keyword | : | Information Security |
Publisher | : | Institutional Knowledge at Singapore Management University |
Year End | : | 2005 |
Identifier | : | https://ink.library.smu.edu.sg/sis_research/300 , http://dx.doi.org/10.1007/11602897_23 |
Source | : | Research Collection School Of Computing and Information Systems |
Abstract / Description | : |
Efficiently protecting the privacy of multi-recipient emails is not as trivial as it seems. The approach proposed by S/MIME is to concatenate all ciphertexts. However, it suffers from poor scalability due to its linear computation and communication cost. In this paper, we propose a new practical and secure scheme, called multiplex encryption. By combining the ideas of identity-based mediated RSA and re-encryption mix network, our framework only requires constant computation and communication cost to encrypt a multi-recipient email. |