因此如何在现有的密码体制和数字签名体制的基础上，构建一个更好的方案保护和管理密钥，是决定现实中系统的安全性的关键。

So it becomes a key problem how to build a better security protection scheme and key management system by making use of the cryptography algorithm in practice.

youdao

因此如何在现有的密码体制和数字签名体制的基础上，构建一个更好的方案保护和管理密钥，是决定现实中系统的安全性的关键。

So it becomes a key problem how to build a better security protection scheme and key management system by making use of the cryptography algorithm in practice.

youdao