Weaknesses in some recent key agreement protocols
Kaisa Nyberg, Rainer A. Rueppel · Electronics Letters · 1994
B. Arazi recently proposed a way to integrate the DSS (digital signature standard) to the Diffie-Hellman key exchange system to obtain an authenticated key establishment mechanism for secret session keys. This Letter poins out the following weakness in the Arazi system: if one key is compromised then the others will be disclosed as well. A similar weakness appears also in another recently presented key distribution system.