Authenticated group Diffie-Hellman key exchange: theory and practice Page: 3 of 120
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Authenticated two-party Diffie-Hellman key exchange allows two princi-
pals A and B, communicating over a public network, and each holding
a pair of matching public/private keys to agree on a session key. Pro-
tocols designed to deal with this problem ensure A (B resp.) that no
other principals aside from B (A resp.) can learn any information about
this value. These protocols additionally often ensure A and B that their
respective partner has actually computed the shared secret value.
A natural extension to the above cryptographic protocol problem is to
consider a pool of principals agreeing on a session key. Over the years
several papers have extended the two-party Diffie-Hellman key exchange
to the multi-party setting but no formal treatments were carried out
till recently. In light of recent developments in the formalization of the
authenticated two-party Diffie-Hellman key exchange we have in this
thesis laid out the authenticated group Diffie-Hellman key exchange on
Keywords: Group Key-Exchange, Diffie-Hellman, Security Model
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Chevassut, Olivier. Authenticated group Diffie-Hellman key exchange: theory and practice, thesis or dissertation, October 3, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc739237/m1/3/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.