Symmetric Key Encryption

You need a symmetric key to do the encryption, and the key must be managed independently.

必须有对称密钥才能解密，而且密钥必须单独管理。

A key management scheme based on symmetric encryption is provided which is used to distribute the shared key for mobile terminals lacking of computing power. 4.

针对移动终端计算能力不足的特点，提出了一套基于对称加密体系的密钥管理和分配方案，为移动终端进行端到端加密提供了共享密钥。

This paper introduces a high speed symmetric key data encryption/ decryption IC according to the algorithm which is designed on the basis of encryption standards established by the national information security domain.

根据国家信息安全领域确定的密码标准体系自行设计的对称密码算法，提出了一种高速对称密码芯片结构。

To start with, cryptography is introduced from encryption and decryption, symmetric secret key encryption, public key encryption and password analysis.

首先从加密和解密、对称密钥加密、公钥加密、密码分析等方面对密码学进行了简单的介绍。

EKE is a kind of key exchange protocol based on week password and can resist offline dictionary attacks by use of symmetric key encryption and public key encryption.

EKE协议是基于弱口令的密钥交换协议，通过使用对称密钥加密体制和公钥加密体制，能够很好地抵抗离线字典攻击。

This type of schemes has the following two characteristics: the commitment value of the signature is only recoverable by an intended receiver, so the value also can be used as a shared symmetric key of symmetric encryption and acts as "two birds one stone".

它有两个特点，一个是签名中的承诺值只有预定的接收者才能算出，从而又可将该承诺值用作对称加密的密钥，取得一举两得之功效；

Completion of an asymmetric key generation, import, export, encryption, decryption, symmetric encryption and decryption, signature, verification.

完成非对称密钥的生成 、 导入 、 导出 、 加密 、 解密 、 对称的加密解密 、 签名 、 验证.

SSL uses a public key infrastructure to negotiate a mutually acceptable symmetric key cipher and to agree upon and exchange encryption keys between two communication sources.

ssl使用一个公共密钥基础设施来协商出一个双方都能接受的对称密钥加密，并在通信两端之间交换双方同意的加密密钥。