The password to use when encrypting the object.
EncryptionPassword is used to tell the adapter to encrypt or decrypt the data.
When an object is uploaded to the Amazon server, if this property contains a non-empty string, the data that is sent will be AES encrypted using 256 bit keys.
When on object is downloaded from the Amazon server, and this property contains a non-empty string, the returned data will be AES decrypted.
The adapter does not control determining which objects have and have not been encrypted.