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.
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