求翻译：数字密码算法是一项重要的技术，它能有效地保护信息安全。本文对密码学提出了一个简单的介绍，说明了你构成和安全性，并且实现了一个基本的混合密码系统。它使用DES作为对称密钥算法，RSA作为公开密钥算法。它既能用于数据加密也能用于数字签名，容易理解和操作，并且该算法是一种非对称密码算法，该算法需要一对密钥，使用其中一个加密，则需要用另一个才能解密，从而保护信息安全。是什么意思？

Digital cryptographic algorithm is an important technology, it can effectively protect information security. A brief overview of cryptography, you constitute and security, and achieve a basic hybrid cryptosystem. It uses des as a symmetric key algorithm, the rsa as a public key algorithm. It can be

numeric password algorithm is a key technology, it can be effective in protecting information security. This article on cryptography has made a brief introduction, which explains your composition and security, and achieve a basic mix password system. It uses DES as symmetric key algorithms, RSA as a

Numeric password algorithm is an important technology, it can effectively protect information security. This article gave a brief introduction on cryptography, describes the composition and safety of you, and implement a basic hybrid cipher systems. It uses DES as the symmetric key algorithms, RSA p