The initialization vector to use when encrypting. Must be at least 7 characters long. The same value should be provided on subsequent store instantiations, so a value that is unique to the user (such as a GUID) is recommended.
The private key to use to encrypt values in the store. The same key will need to be provided on subsequent encrypted store instantiations, so a value that is unique to the user (and unguessable by other users) is recommended. Any string of any length can be used.