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Client-Side Field Level Encryption Methods

KeyVault.getKeys()

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  • Behavior
  • Example

New in version 4.2.

KeyVault.getKeys()

getKeys() returns all data encryption keys stored in the key vault associated to the database connection.

getKeys() has the following syntax:

keyVault = db.getMongo().getKeyVault()
keyVault.getKeys()
Returns:Returns all data encryption keys associated to the key vault.

Returns nothing if the key vault is empty.

Behavior

Requires Configuring Client-Side Field Level Encryption on Database Connection

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.

Example

The following example uses a locally managed KMS for the client-side field level encryption configuration.

To configure client-side field level encryption for a locally managed key:

  • generate a base64-encoded 96-byte string with no line breaks

  • use mongosh to load the key

export TEST_LOCAL_KEY=$(echo "$(head -c 96 /dev/urandom | base64 | tr -d '\n')")
mongosh --nodb

Create the client-side field level encryption object using the generated local key string:

 var autoEncryptionOpts = {
   "keyVaultNamespace" : "encryption.__dataKeys",
   "kmsProviders" : {
     "local" : {
       "key" : BinData(0, process.env["TEST_LOCAL_KEY"])
     }
   }
 }

Use the Mongo() constructor with the client-side field level encryption options configured to create a database connection. Replace the mongodb://myMongo.example.net URI with the connection string URI of the target cluster.

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

Retrieve the KeyVault object and use the KeyVault.getKeys() method to retrieve all data encryption keys in the key vault:

keyVault.getKeys()

getKeys() returns all data encryption keys in the key vault, with output similar to the following:

{
  "_id" : UUID("b4b41b33-5c97-412e-a02b-743498346079"),
  "keyMaterial" : BinData(0,"PXRsLOAYxhzTS/mFQAI8486da7BwZgqA91UI7NKz/T/AjB0uJZxTvhvmQQsKbCJYsWVS/cp5Rqy/FUX2zZwxJOJmI3rosPhzV0OI5y1cuXhAlLWlj03CnTcOSRzE/YIrsCjMB0/NyiZ7MRWUYzLAEQnE30d947XCiiHIb8a0kt2SD0so8vZvSuP2n0Vtz4NYqnzF0CkhZSWFa2e2yA=="),
  "creationDate" : ISODate("2021-03-15T12:21:13.123Z"),
  "updateDate" : ISODate("2021-03-15T12:21:13.123Z"),
  "status" : 0, "version" : NumberLong(0),
  "masterKey" : {
    "provider" : "local"
  },
  "keyAltNames" : [
     "alpha"
  ]
}
{
  "_id" : UUID("f1add015-c7ab-49a2-a071-50b0ca0a8fbc"),
  "keyMaterial" : BinData(0,"E+0jZKzA4YuE1lGmSVIy2mivqH4JxFo0yFATdxYX/s0YtMFsgVXyu7Bbn4IQ2gn7F/9JAPJFOxdQc5lN3AR+oX33ewVZsd63f3DN1zzcukqdR2Y+EeO7ekRxyRjdzMaNNrBNIv9Gn5LEJgWPSYkG8VczF7cNZnc1YmnR0tuDPNYfm0J7dCZuZUNWW3FCGRcdFx6AlXiCtXKNR97hJ216pQ=="),
  "creationDate" : ISODate("2021-03-16T18:22:43.733Z"),
  "updateDate" : ISODate("2021-03-16T18:22:43.733Z"),
  "status" : 0, "version" : NumberLong(0),
  "masterKey" : {
    "provider" : "local"
  },
  "keyAltNames" : [
     "baker"
  ]
}

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KeyVault.getKey()

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