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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他说，IT经理还须鉴定其组织中用的协议，如用户识别和密钥管理。

He says it managers must also evaluate the protocols used within their organizations, such as user identification and key management.

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早期规范中的认证与密钥管理协议为保密密钥，管理(PKM)，数据保密机制包含基于DES - CBC和AES - CCM的两个解决方案。

In earlier version, authentication and key management protocol is called Privacy key management (PKM); and data protection protocols include two solutions based on DES-CBC and AES-CCM.

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