We address a simple protocol that can be used to distribute a shared key to three or more users over an insecure channel. We use the Elgamal protocol to set up the system and we define a generalization of Massey Omura protocol to allow one user to send a message or a shared key to a group of users. Moreover we analyse some problems about the decryption shared key of Massey Omura generalized protocol and the man-in-the- middle problem.
Massey Omura Multiple Users Key Distribution
MERLANTI, Danilo;MAZZINI, Gianluca
2011
Abstract
We address a simple protocol that can be used to distribute a shared key to three or more users over an insecure channel. We use the Elgamal protocol to set up the system and we define a generalization of Massey Omura protocol to allow one user to send a message or a shared key to a group of users. Moreover we analyse some problems about the decryption shared key of Massey Omura generalized protocol and the man-in-the- middle problem.File in questo prodotto:
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