Common use of Perfect Forward/Backward Secrecy Clause in Contracts

Perfect Forward/Backward Secrecy. If an adversary 𝒜 obtains the session key in a session, he will not have access to other session keys in other session because session keys are computed independently, including random nonces (𝑥 and 𝑦) and temporary 𝑇𝐼𝐷𝑖 and 𝑇𝐼𝐷𝑗 that change in each authentication session. Therefore, the proposed protocol preserves perfect forward backward secrecy.

Perfect Forward/Backward Secrecy. If an adversary 𝒜 obtains the session key in a session, he will not have access to other session keys in other session because session keys are computed independently, including random nonces (�( � and 𝑦) and temporary 𝑇𝐼𝐷𝑖 and 𝑇𝐼𝐷𝑗 that change in each authentication session. Therefore, the proposed protocol preserves perfect forward backward secrecy.