Account contains a username, password, and salt (if applicable).

Authentication is a middleware which provides user authentication.

BcryptHash implements the bcrypt hash.

Cache enables caching of basic auth results.

HTTPBasicAuth facilitates HTTP basic authentication.

ScryptHash implements the scrypt KDF as a hash.

User represents an authenticated user.

Authenticator is a type which can authenticate a request.

Comparer is a type that can securely compare a plaintext password with a hashed password in constant-time.

Hasher is a type that can generate a secure hash given a plaintext and optional salt (for algorithms that require a salt).