密码体制大体分为对称密码和非对称密码两种。
Modern cryptograph can be divided into symmetrical key system and dissymmetrical key system.
介绍对称密码技术和非对称密码技术的基础理论。
Introduce the basic theory of symmetrical encryption technology and asymmetrical encryption technology.
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.
公钥-私钥组合是公共密钥基础设施的核心，建立在非对称密码的基础上。
Public-private key combination is at the heart of Public key Infrastructure (PKI), and is based on asymmetric cypher.
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.
公开钥密码系统或非对称密码系统是实现和保障信息安全的一种重要方式。
The public key cryptosystem or the asymmetric cryptosystem is an important way to implement and ensure information security.
目前在软件加/解密技术中应用到的密码体制主要分为对称密码体制与非对称密码体制。
RSA crypto-algorithm is recognized as the most mature and perfect in all asymmetrical key system at present.
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;
公开密钥基础设施PKI是一种利用非对称密码技术为电子商务、电子政务和电子事务的开展提供一整套安全保护的基础平台。
Public Key Infrastructure (PKI) utilizes the asymmetrical cryptography technology to lay the security foundation for the electronic commerce, the electronic government and the electronic business.
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.
换言之，可以同时使用多个证书、密码、对称密钥以及非对称密钥对单个对称密钥进行加密。
In other words, a single symmetric key can be encrypted by using multiple certificates, passwords, symmetric keys, and asymmetric keys at the same time.
利用RS码和两锁密码协议构造了一种非对称的公钥叛逆者追踪方案。
By applying RS code and two-locks cipher protocol, this paper constructs an asymmetric public key traitor tracing scheme.
SSL协议采用了对称加密、非对称加密、信息摘要、数字签名、数字证书等密码学技术。
SSL protocol USES symmetric encryption, asymmetric encryption, message digest, digital signature, digital certificate and other cryptographic techniques.
公钥和非对称公钥密码学使用一对密钥，其中的一个定义为私钥并加密存放，另外一个被称为公钥，通常无须加密。
Public Key and Asymmetric - Public-key cryptography uses a pair of keys, one that is designated the private key and kept secret, the other key is called the public key and is generally made available.
目前有几种加密技术如对称密钥密码系统和非对称密钥密码系统。
Several technologies exist for encryption, such as symmetric key cryptography and asymmetric key cryptography.
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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