VPN cryptographical system is concerned with cryptographical technology, authentication technology and VPN implementation protocols.
VPN密码系统的构建涉及几个方面的技术,包括加密技术、认证技术、实现协议等。
In modern cryptography, it is believed that any algorithm of encryption and decryption in cryptographical systems can be open, their safety depends on key security.
现代密码学认为,任何加密体系的加密和解密算法都可以公开,其安全性在于密钥的安全性。
It is believed that in modern cryptography, any algorithm of encryption and decryption in cryptographical systems could be public, and the security should rely on the secure key.