Authenticated Assets
Storing data on-chain automatically enriches it with all the security guarantees inherent to DLTs and is therefore a widely used practice - especially for data that requires to be persisted indefinitely and that has a small footprint, e.g., revocation lists or proof of inclusions.
In order to store data on an IOTA network, said data must be encapsulated within a Move object with the store ability. This operation can become quite tedious as it requires to model an object that holds the data even for data types that does not require to be stored in a human-readable or accessible manner, such as raw bytes or strings.
To solve this issue, we introduce a new configurable object type, AuthenticatedAsset, that can store arbitrary
data while keeping track of the address that created it and the address that owns it. After data is wrapped in an
AuthenticatedAsset, it is persisted on-chain and can be referenced through AuthenticatedAsset's ID.
Authenticated Asset Configuration
AuthenticatedAsset is a configurable data container. Upon its creation, users can configure it to make it: mutable,
deletable, and tradable.
By default an AuthenticatedAsset is immutable, non-tradable, and impossible to delete.
AuthenticatedAsset's configuration allows it to be a good fit for different use cases. For instance, when storing revocation
lists we want to be able to update it, hence we need AuthenticatedAsset to be mutable, but at the same time we need to make
sure its content is never deleted and always accessible.
On the other hand, when storing proof of inclusions, we want them to be immutable.
Authenticated Asset Origin and Ownership
When storing data on an IOTA network, the data's owner and origin address can be easily retrieved by off-chain actors through the network indexer. However, this information is not accessible on-chain unless it is made explicit within the object that wraps the data.
AuthenticatedAsset keeps track of its origin and ownership by default, in order to enable the access of this information
on-chain.