MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0
For each keyring plugin-specific function, this section describes its purpose, calling sequence, and return value. For information about general-purpose keyring functions, see Section 8.4.4.15, “General-Purpose Keyring Key-Management Functions”.
Associated keyring plugin: keyring_aws
keyring_aws_rotate_cmk()
rotates the AWS KMS key. Rotation changes only the key that
AWS KMS uses for subsequent data key-encryption operations.
AWS KMS maintains previous CMK versions, so keys generated
using previous CMKs remain decryptable after rotation.
Rotation changes the CMK value used inside AWS KMS but does
not change the ID used to refer to it, so there is no need
to change the
keyring_aws_cmk_id system
variable after calling
keyring_aws_rotate_cmk().
This function requires the
SUPER privilege.
Arguments:
None.
Return value:
Returns 1 for success, or NULL and an
error for failure.
Associated keyring plugin: keyring_aws
keyring_aws_rotate_keys()
rotates keys stored in the keyring_aws
storage file named by the
keyring_aws_data_file
system variable. Rotation sends each key stored in the file
to AWS KMS for re-encryption using the value of the
keyring_aws_cmk_id system
variable as the CMK value, and stores the new encrypted keys
in the file.
keyring_aws_rotate_keys() is
useful for key re-encryption under these circumstances:
After rotating the CMK; that is, after invoking the
keyring_aws_rotate_cmk()
function.
After changing the
keyring_aws_cmk_id
system variable to a different key value.
This function requires the
SUPER privilege.
Arguments:
None.
Return value:
Returns 1 for success, or NULL and an
error for failure.
keyring_hashicorp_update_config()
Associated keyring plugin:
keyring_hashicorp
When invoked, the
keyring_hashicorp_update_config()
function causes keyring_hashicorp to
perform a runtime reconfiguration, as described in
keyring_hashicorp Configuration.
This function requires the
SYSTEM_VARIABLES_ADMIN
privilege because it modifies global system variables.
Arguments:
None.
Return value:
Returns the string 'Configuration update was
successful.' for success, or
'Configuration update failed.' for
failure.