密码技术主要包括对称密码算法和非对称密码算法及协议。
It mainly includes symmetric encryption algorithms and asymmetric cryptographic algorithms and protocols.
将对称密码算法和非对称密码算法共同使用，增强了应用系统的安全性。
Using the symmetric algorithms and the asymmetric algorithms together security performance of the application system is improved.
首先阐述密码学的相关概念，然后对传统密码技术和现代的对称密码算法与非对称密码算法及其安全性进行分析；
Related conception is introduced at first, then the principle and security of conventional cryptology, modern symmetrical encryption algorithms and asymmetrical encryption algorithms are analysed;
介绍对称密码技术中的DES、AES、IDEA加密算法和非对称密码技术中的RSA、ECC加密算法，并给出了混合密码算法的方案。
Introduced des, AES, and IDEA encryption algorithm, RSA, and ECC encryption algorithm, finally, produced the mix crypto-algorithm design proposal.
第二章介绍基本的应用密码学算法和密码协议，包括对称加密算法、非对称加密算法、散列函数、数字签名技术和密钥管理协议。
In chapter 2, the basic algorithms and protocol of applied cryptography are introduced here, including symmetric-key cryptography, public-key cryptography, hash functions and key management protocols.
第二章介绍基本的应用密码学算法和密码协议，包括对称加密算法、非对称加密算法、散列函数、数字签名技术和密钥管理协议。
In chapter 2, the basic algorithms and protocol of applied cryptography are introduced here, including symmetric-key cryptography, public-key cryptography, hash functions and key management protocols.
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