Which authentication method does Vault support for user access?

Token-based authentication is a core feature of HashiCorp Vault that facilitates user access. This method allows users to authenticate themselves and receive a token, which serves as a secure credential throughout their interactions with Vault. The token can provide access to various secret engines and operations based on assigned policies.

Using tokens allows for a more flexible and robust security model. Users can have their tokens securely managed, and the system can easily revoke or renew them as needed, aligning with secure access practices. Token-based authentication is crucial for implementing role-based access control since it enables granular permissions to be defined based on the generated tokens.

In contrast, while biometric authentication, social media login, and physical key access may represent modern access methods, they are not part of the authentication methods supported by Vault. This is primarily because Vault focuses on secure, enterprise-level secrets management, emphasizing flexible yet robust methods like token-based authentication.