資訊安全是數位系統的重要問題, 而安全的密碼協定是用來實 現資訊安全的基礎工具. 隨機在密碼學裡扮演很重要的角色, 隨機有許多方式可以取得. 其中通道雜訊的不確定性是一個很 好的隨機來源, 它可以應用在許多密碼協定的設計上. 在這演 講裡將會探討通道雜訊的不確定性在密碼理論基礎工具的應 用,包含下列各項密碼協定的設計:(1)安全金鑰的建立,(2)模 糊傳送,(3)位元承諾.

 

Security is an important issue in information systems and secure cryptographic protocols are essential tools for the security of information systems. Randomness plays an important role in the design of the security of cryptographic protocols. There are many sources to obtain randomness. Unpredictable noise in communication channel is a good source of randomness which can be used in many cryptographic protocols. In this talk, I will discuss how unpredictable noise in communication channel can be used in the design of some fundamental tools in cryptographic protocols. These protocols include:(1) Secret key establishment (2) Oblivious transfer, and (3)Bit commitment.