Customer Master Keys
Within AWS KMS, your key hierarchy starts with a CMK. A CMK can be used to directly encrypt data blocks up to 4 KB or it can be used to secure data keys, which protect underlying data of any size.
Within AWS KMS, your key hierarchy starts with a CMK. A CMK can be used to directly encrypt data blocks up to 4 KB or it can be used to secure data keys, which protect underlying data of any size.