* from memory.
     *
     * @return the password as a char array
     */
    public char[] getPasswordAsCharArray() {
        checkNotClosed();
        return this.password != null && this.password.length > 0 ? this.password.clone() : this.password == null ? null : new char[0];
    }

    /**
     * Securely wipes the password from memory
     */

* The **input model** needs to be able to have a password.
* The **output model** should not have a password.
* The **database model** would probably need to have a hashed password.

/// danger

Never store user's plaintext passwords. Always store a "secure hash" that you can then verify.

If you don't know, you will learn what a "password hash" is in the [security chapters](security/simple-oauth2.md#password-hashing){.internal-link target=_blank}.

///

            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;
    }

        return hmac.digest();
    }

    /**
     * Generates the NT password hash for the given password.
     *
     * @param password the password to hash
     * @return nt password hash
     */
    public static byte[] getNTHash(final String password) {
        if (password == null) {
            throw new NullPointerException("Password parameter is required");
        }

            auth1.close();
            auth2.close();
        }
    }

    /**
     * Test concurrent password comparisons to ensure thread safety and consistent timing.
     */
    @Test
    public void testConcurrentTimingConsistency() throws Exception {
        final char[] password = "concurrenttestpassword".toCharArray();
        final char[] wrongPassword = "concurrenttestpassworX".toCharArray(); // Different at end

# Simple OAuth2 with Password and Bearer { #simple-oauth2-with-password-and-bearer }

Now let's build from the previous chapter and add the missing parts to have a complete security flow.

## Get the `username` and `password` { #get-the-username-and-password }

We are going to use **FastAPI** security utilities to get the `username` and `password`.

        return ntResponse;
    }

    /**
     * Generates the NTOWFv1 hash for the given password.
     *
     * @param password the password to hash
     * @return the NTOWFv1 hash bytes
     */
    public static byte[] nTOWFv1(final String password) {
        if (password == null) {
            throw new RuntimeException("Password parameter is required");
        }
        try {
            final MD4 md4 = new MD4();

    }

    /**
     * Returns the password.
     * @return The password.
     */
    public String getPassword() {
        return password;
    }

    /**
     * Sets the password.
     * @param password The password.
     */
    public void setPassword(final String password) {
        this.password = password;
    }

    /**
     * Returns the domain.

            if (form.crudMode.intValue() == CrudMode.CREATE || StringUtil.isNotBlank(form.password)) {
                final String encodedPassword = ComponentUtil.getComponent(FessLoginAssist.class).encryptPassword(form.password);
                entity.setOriginalPassword(form.password);
                entity.setPassword(encodedPassword);
            }

        }
    }

    // Test constructor with domain, username, and password
    @Test
    void testConstructorWithDomainUsernamePassword() {
        NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication("DOMAIN", "user", "password");
        assertEquals("DOMAIN", auth.getDomain());
        assertEquals("user", auth.getUsername());
        assertEquals("password", auth.getPassword());
    }