Diffie-Hellman Group Exchange for the SSH Transport Layer Protocol

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Last updated 2000-05-26
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This memo describes a new key exchange method for the SSH protocol. It allows the SSH server to propose to the client new groups on which to perform the Diffie-Hellman key exchange. The proposed groups need not be fixed and can change with time.


William Simpson (wsimpson@greendragon.com)
Niels Provos (provos@physhel.uni-hamburg.de)
Markus Friedl (markus@openbsd.org)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)