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KeyVault.removeKeyAlternateName()

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  • Behavior
  • Example
KeyVault.removeKeyAlternateName(UUID, keyAltName)

Removes the specified keyAltName from the data encryption key with the specified UUID. The data encryption key must exist in the key vault associated to the database connection.

removeKeyAlternateName() has the following syntax:

keyVault = db.getMongo().getKeyVault()
keyVault.removeKeyAlternateName(
UUID("<UUID string>"),
"keyAltName"
)
Returns:The data encryption key prior to updating the keyAltName.

Returns null if no data encryption key has the specified UUID().

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.

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

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.removeKeyAlternateName() method to remove the specified key alternate name from the data encryption key with matching UUID:

keyVault = encryptedClient.getKeyVault()
keyVault.removeKeyAlternateName(UUID("b4b41b33-5c97-412e-a02b-743498346079"),"Other-Data-Encryption-Key")

If successful, removeKeyAlternateName() returns the data encryption key prior to updating the keyAltName.

{
"_id" : UUID("b4b41b33-5c97-412e-a02b-743498346079"),
"keyMaterial" : BinData(0,"PXRsLOAYxhzTS/mFQAI8486da7BwZgqA91UI7NKz/T/AjB0uJZxTvhvmQQsKbCJYsWVS/cp5Rqy/FUX2zZwxJOJmI3rosPhzV0OI5y1cuXhAlLWlj03CnTcOSRzE/YIrsCjMB0/NyiZ7MRWUYzLAEQnE30d947XCiiHIb8a0kt2SD0so8vZvSuP2n0Vtz4NYqnzF0CkhZSWFa2e2yA=="),
"creationDate" : ISODate("2019-08-12T21:21:30.569Z"),
"updateDate" : ISODate("2019-08-12T21:21:30.569Z"),
"status" : 0,
"version" : NumberLong(0),
"masterKey" : {
"provider" : "local"
},
"keyAltNames" : [
"ssn-encryption-key"
]
}

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KeyVault.addKeyAlternateName()

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KeyVault.getKeyByAltName()

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