return password_hash.verify(plain_password, hashed_password)


def get_password_hash(password):
    return password_hash.hash(password)


def get_user(db, username: str):
    if username in db:
        user_dict = db[username]
        return UserInDB(**user_dict)


def authenticate_user(fake_db, username: str, password: str):
    user = get_user(fake_db, username)
    if not user:
        return False

    return password_hash.verify(plain_password, hashed_password)


def get_password_hash(password):
    return password_hash.hash(password)


def get_user(db, username: str):
    if username in db:
        user_dict = db[username]
        return UserInDB(**user_dict)


def authenticate_user(fake_db, username: str, password: str):
    user = get_user(fake_db, username)
    if not user:
        return False

                // encrypted
                try {
                    this.password = pwAuth.getAnsiHash(this.ctx, this.server.encryptionKey);
                } catch (final GeneralSecurityException e) {
                    throw new RuntimeCIFSException("Failed to encrypt password", e);
                }
                this.passwordLength = this.password.length;
            } else if (this.ctx.getConfig().isDisablePlainTextPasswords()) {

            throw new IllegalArgumentException("Password hash must be provided, expected length 16 byte");
        }
        this.ntHash = passwordHash;
    }

    /**
     * Create username/password credentials with specified domain
     *
     * @param domain the authentication domain
     * @param username the username
     * @param passwordHashHex
     *            NT password hash, hex encoded
     */

 */

/**
 * Provides the API for the Maven Password Encryption tool ({@code mvnenc}).
 *
 * <p>This package contains interfaces and classes for the password encryption tool,
 * which helps secure sensitive information in Maven settings and configuration files.</p>
 *
 * <p>Key features include:</p>
 * <ul>
 *   <li>Password encryption and decryption</li>
 *   <li>Master password management</li>

    return password_hash.verify(plain_password, hashed_password)


def get_password_hash(password):
    return password_hash.hash(password)


def get_user(db, username: str):
    if username in db:
        user_dict = db[username]
        return UserInDB(**user_dict)


def authenticate_user(fake_db, username: str, password: str):
    user = get_user(fake_db, username)
    if not user:
        return False

     * @param domain the domain for authentication
     * @param username the username for authentication
     * @param password the password for authentication
     */
    public JAASAuthenticator(String serviceName, String domain, String username, String password) {
        super(null, domain, username, password);
        this.serviceName = serviceName;
    }

    /**
     * Create an authenticator using the given credentials

            credentials = new NTCredentials(username, password == null ? StringUtil.EMPTY : password,
                    workstation == null ? StringUtil.EMPTY : workstation, domain == null ? StringUtil.EMPTY : domain);
        } else {
            credentials = new UsernamePasswordCredentials(username, password == null ? StringUtil.EMPTY : password);
        }
        return credentials;
    }

```Python
UserInDB(
    username="john",
    password="secret",
    email="******@****.***",
    full_name=None,
)
```

Или, если для большей точности мы напрямую используем `user_dict` с любым потенциальным содержимым, то этот пример будет выглядеть так:

```Python
UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],

Pode ser usada por aplicações e sistemas de terceiros.

E também pode ser usada por você mesmo, para depurar, verificar e testar a mesma aplicação.

## O fluxo de `password` { #the-password-flow }

Agora vamos voltar um pouco e entender o que é isso tudo.

O "fluxo" `password` é uma das formas ("fluxos") definidas no OAuth2 para lidar com segurança e autenticação.