`Asset`¶

The asset.go implementation defines the Asset interface and the AssetType within the Open Asset Model. The Asset interface acts as a blueprint or a unified contract that every type of asset within the Open Asset Model must adhere. It provides a standardized way to represent, interact, manage, and process various digital and physical assets. This file is fundamental to the model as it establishes the core structure for all supported asset types.

Interface¶

The asset.go file defines the Asset interface, which serves as a unified contract that all asset types within the Open Asset Model must implement. This ensures consistency when interacting with different assets

type Asset interface {
    Key() string
      AssetType() AssetType
      JSON() ([]byte, error)
}

The Asset interface comprises the following methods:

Key() string: This method is responsible for returning a unique identifier for a specific asset instance. This allows for consistent identification and tracking of individual assets.
AssetType() AssetType: This method returns the type of the asset as a value of the AssetType. This enables categorization and specific handling of different asset types within the model. AssetType is defined as a simple string type.
JSON() ([]byte, error): This method handles the serialization of the asset's data into a JSON format. It returns a byte slice representing the JSON encoding of the asset and an error if the serialization fails. This facilitates easy data interchange across APIs and databases.

Enumerations¶

The AssetType is defined as a string alias, ensuring type safety and consistency within the model. The asset.go file enumerates a comprehensive list of currently supported asset types as constants of the AssetType:

const (
    Account        AssetType = "Account"
    AutnumRecord   AssetType = "AutnumRecord"
    AutonomousSystem AssetType = "AutonomousSystem"
    ContactRecord  AssetType = "ContactRecord"
    DomainRecord   AssetType = "DomainRecord"
    File           AssetType = "File"
    FQDN           AssetType = "FQDN"
    FundsTransfer  AssetType = "FundsTransfer"
    Identifier     AssetType = "Identifier"
    IPAddress      AssetType = "IPAddress"
    IPNetRecord    AssetType = "IPNetRecord"
    Location       AssetType = "Location"
    Netblock       AssetType = "Netblock"
    Organization   AssetType = "Organization"
    Person         AssetType = "Person"
    Phone          AssetType = "Phone"
    Product        AssetType = "Product"
    ProductRelease AssetType = "ProductRelease"
    Service        AssetType = "Service"
    TLSCertificate AssetType = "TLSCertificate"
    URL            AssetType = "URL"
)

These constants represent different categories of assets within an organization's attack surface inventory. The string value of each constant directly represents the specific asset type.

Variable¶

Complementing the AssetType constants, the asset.go file declares a variable AssetList:

var AssetList = []AssetType{
    Account, AutnumRecord, AutonomousSystem, ContactRecord, DomainRecord, File, FQDN, FundsTransfer,
    Identifier, IPAddress, IPNetRecord, Location, Netblock, Organization, Person, Phone, Product,
    ProductRelease, Service, TLSCertificate, URL,
}

This variable is a slice containing all the defined AssetType constants. It serves as a centralized registry of all supported asset types. The AssetList provides a convenient way to access and iterate over all the predefined asset types handled by the model and can be used for validating if a given string represents a valid AssetType. T

`AssetType` vs `AssetList`¶

AssetType is the definition of the type itself, a string used to categorize assets. It also serves as the type for the defined constants.
AssetList is a concrete collection (a slice) containing all the values of the predefined AssetType constants. It's an instance that holds all the currently supported asset category identifiers.

The relationship can be analogized to "color" (AssetType) and a list containing "red," "blue," and "green" (AssetList).

Summary¶

The asset.go file is fundamental to the Open Asset Model, ensuring standardized asset representation across various security and reconnaissance applications. Key takeaways include:

It defines a structured Asset interface for consistent asset management.
It enumerates asset types as constants of AssetType to ensure type safety and consistency.
It provides JSON serialization support through the JSON() method in the Asset interface for data interchange.
It includes AssetList to facilitate asset type validation and iteration.

By implementing this structured approach, contributors can extend asset handling capabilities, while users can integrate asset intelligence into their security workflows efficiently.

Asset¶