KeyVault.deleteKey()（mongosh方法）

KeyVault.deleteKey(UUID)

从与数据库连接关联的密钥保管库中删除具有指定 UUID 的数据加密密钥。

返回：	指示已删除键数量的文档。

兼容性

此命令可用于以下环境中托管的部署：

MongoDB Atlas：用于云中 MongoDB 部署的完全托管服务

MongoDB Enterprise：基于订阅、自我管理的 MongoDB 版本
MongoDB Community：源代码可用、免费使用且可自行管理的 MongoDB 版本

语法

deleteKey() 通过以下语法实现：

keyVault = db.getMongo().getKeyVault()
keyVault.deleteKey(UUID("<UUID String>"))

The UUID is a BSON binary data object with subtype 4.

行为

需要在数据库连接上配置客户端字段级加密

The mongosh client-side field level encryption methods require a database connection with client-side field level encryption enabled. If the current database connection was not initiated with client-side field level encryption enabled, either:

Use the Mongo() constructor from the mongosh to establish a connection with the required client-side field level encryption options. The Mongo() method supports the following Key Management Service (KMS) providers for Customer Master Key (CMK) management:
or
Use the mongosh command line options to establish a connection with the required options. The command line options only support the Amazon Web Services KMS provider for CMK management.

例子

The following example is intended for rapid evaluation of client-side field level encryption. For specific examples of using KeyVault.deleteKey() with each supported KMS provider, see Delete a Data Encryption Key.

启动 mongosh

启动mongosh客户端。

mongosh --nodb

生成密钥

要为本地托管的密钥配置客户端字段级加密，请生成一个不带换行符的 base64 编码的 96 字节字符串。

const TEST_LOCAL_KEY = require("crypto").randomBytes(96).toString("base64")

创建客户端字段级加密选项

使用生成的本地密钥字符串创建客户端字段级加密选项：

 let autoEncryptionOpts = {
   "keyVaultNamespace" : "encryption.__dataKeys",
   "kmsProviders" : {
     "local" : {
       "key" : BinData(0, TEST_LOCAL_KEY)
     }
   }
 }

创建加密客户端

使用配置了客户端字段级加密选项的Mongo()构造函数来创建数据库连接。将mongodb://myMongo.example.net URI 替换为目标集群的连接字符串 URI 。

encryptedClient = Mongo(
  "mongodb://myMongo.example.net:27017/?replSetName=myMongo",
   autoEncryptionOpts
)

Retrieve the KeyVault object and use the KeyVault.deleteKey() method to delete the data encryption key with matching UUID:

keyVault = encryptedClient.getKeyVault()
keyVault.deleteKey(UUID("b4b41b33-5c97-412e-a02b-743498346079"))

If successful, deleteKey() returns output similar to the following:

{ "acknowledged" : true, "deletedCount" : 1 }

提示