量子密码与公钥密码体制

Quantum Cryptography and Public Key Cryptosystem

现今普遍应用的公钥密码体系,其安全性建立在数学函数问题的计算复杂性基础上。随着量子计算的发展,这种密码体制的安全隐患越来越突出。量子密码安全性基于物理基本原理,具有无条件的安全性,能够实现真正意义上的保密通信。

Now widely used public key cryptosystems are based their securities on the difficulties of algebraic problems.With the development of quantum computation,the security of the public key cryptosystem has been threatened.The security of quantum cryptography is based on the laws of quantum physics and thus provides a unconditional safe way to communication.