# 2015 年的 Turing Award 由 Whitfield Diffie 與 Martin E. Hellman 獲得

Diffie–Hellman key exchange 是全世界第一個 (1976 年) 在公開頻道上建立 shared secret 的演算法，直到現在都還廣泛的被使用，可以防禦被動式的監聽攻擊：

The Diffie–Hellman key exchange method allows two parties that have no prior knowledge of each other to jointly establish a shared secret key over an insecure channel.

a secure communication protocol is said to have forward secrecy if compromise of long-term keys does not compromise past session keys.

This entry was posted in Computer, Murmuring, Network, Science, Security and tagged , , , , , , , , , , , . Bookmark the permalink.