Robust generalized MQV key agreement protocol without using one-way hash functions
IEEE P1363 Committee has adopted the MQV key agreement protocol to become a standard. The MQV protocol was proposed by Menezes et al., which uses a digital signature to sign the DiffieHellman public keys without using one-way hash functions. Based on the MQV protocol, Harn and Lin proposed a generalized key agreement protocol to enable two communication parties to establish multiple common secret keys in a single round of message exchange. However, there is a weakness in the HarnLin protocol. If all common secret keys established between two parties are adopted, the protocol will suffer from the known-key attack. Therefore, a new protocol without using one-way hash functions is proposed to overcome this weakness.
key agreement one-way hash function cryptography