true
if the key was deleted, or false
if the key didn't exist.
Retrieves an encrypted value associated with the key.
The deciphered value, or null
if key wasn't found or if password is incorrect.
Returns true
if the key exists in the storage, or false
otherwise.
Associates a value with a key in an encrypted storage.
A key to set.
A value to write.
The password that is used to cipher the value.
true
if the value was written to the storage, or false
otherwise.
Deletes the encrypted value associated with the key.