Authentication and Authorization

Authentication and Authorization are the two fundamental pillars of access control. Authentication verifies the identity of a user or system, while authorization determines what that entity is allowed to do.

In the context of API security for trading platforms, these processes must be robust and granular. Authentication is typically handled through API keys, OAuth tokens, or certificate-based authentication.

Authorization uses role-based access control (RBAC) to ensure that an API key with "read-only" permissions cannot be used to execute trades or withdraw funds. This is essential for protecting the protocol from unauthorized actions, even if an API key is partially exposed.

By enforcing the principle of least privilege, platforms can significantly reduce their attack surface. These processes are integrated into the protocol's smart contracts and middleware, ensuring that every interaction is validated before execution.

Effective authentication and authorization are the first line of defense against internal and external threats, providing the necessary foundation for a secure and trusted financial environment.