用数据库加密方法实现数据库的安全保密时，密钥的分配和管理是主要难点之一。
When database encryption is used as a machanism for database security and privacy, one of the main problems is the distribution and management of cryptographic keys.
还可以提供用户ID和密码信息，用于数据库身份验证，可以选择密码的加密方法。
You can also provide user id and password information for database authentication, and you can select the encryption method for the password.
另一种想法类似于第一个，但是对该文档做了一个“无提示”保存(一种不会引发任何事件的保存方法)，将其保存到本地加密数据库中了。
Another thought was similar to the first one, but we do a "quiet" save (a save that doesn't fire up any events) of this document to a local encrypted database.
现在数据库中已经拥有一个已加密的密码，但是没有对其进行解密的方法。
You now have an encrypted password in a database, but no way to decrypt it.
更好的替代方法是在数据库中存储加密密码或哈希密码。
A better alternative is to store encrypted or hashed passwords in the database.
为了保证数据库中敏感数据的安全，加密不失为一种有效的方法。
In order to ensure the security of sensitive data in the database, encryption is an effective way.
本文采用修改VFP数据库文件内部结构的方法，来加密vfp数据库文件，从而提高VFP数据库的使用安全性。
In order to improve the security of VFP database files, this paper presents a method to encrypt VFP database files by altering the physical structure.
提出了一种数据库加密系统实现结构和方法，给出了主要的功能模块，对相关的安全问题和性能进行了讨论。
This paper introduces a new architecture for database encryption system and the way to implement it, gives its main module. Some security problems and performance of this system are discussed.
针对数据库中数据的保密性问题，分析了目前已有的一些加密机制，提出了一种基于密文索引的新的查询方法。
Aiming at the data secrecy problem in database, we have analyzed some present encryption mechanism and put forward a new query method based on ciphertext index.
本文的分析基于文件存取的数据库文件的存储结构，阐述了针对数据库文件结构的加密一般方法。在此基础上。
This paper analyses the storage structure of database files based on file access, and then out - lines the general encryption methods on such database files.
对数值型数据保持顺序加密方法进行了分析，在此基础上提出了一种在关系数据库中针对字符数据的保序加密方法。
In this paper the order preserving encryption for numeric data is analyzed. An order preserving encryption method for character data in relational databases is proposed.
提出了把秘密同态理论应用于加密数据库中重要或敏感的信息，从而可以实现直接对数据库密文进行操作的方法。
It is proposed to apply the theory of private homomorphism to encrypt the database important or sensitive information, thus realizing direct operation of encrypted message.
详细描述了数据库加密的基本流程特点、技术限制、加密对DBMS的影响、加密方式以及数据库的加密方法。
There are also further descriptions on the characteristics of the process of basic encryption techniques, technology limitation, the effect on DBMS, encryption mode and encryption for database.
当前一些大型网络数据库管理系统（DBMS）的安全性方法主要包括：身份认证、访问控制、审计跟踪和数据备份，但对一些更为敏感和重要的数据，还需要进行数据加密或者容灾系统的设计。
The major Security methods in DBMS are as follows: identification, visiting control, trace of audit and copy of database, but as to the sensitive and important database, it needs to be coded.
当前一些大型网络数据库管理系统（DBMS）的安全性方法主要包括：身份认证、访问控制、审计跟踪和数据备份，但对一些更为敏感和重要的数据，还需要进行数据加密或者容灾系统的设计。
The major Security methods in DBMS are as follows: identification, visiting control, trace of audit and copy of database, but as to the sensitive and important database, it needs to be coded.
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