// Test the method directly
        char[] password1 = "testpassword".toCharArray();
        char[] password2 = "testpassword".toCharArray();
        char[] password3 = "testpassworX".toCharArray();

        Boolean result1 = (Boolean) constantTimeMethod.invoke(null, password1, password2);
        Boolean result2 = (Boolean) constantTimeMethod.invoke(null, password1, password3);

        byte[] actual = NtlmUtil.getNTHash(password);

        // Assert
        assertArrayEquals(expected, actual, "NT hash must match known test vector");
    }

    @Test
    @DisplayName("getNTHash: verify different passwords produce different hashes")
    void testGetNTHash_differentPasswords() {
        // Arrange
        String password1 = "password";
        String password2 = "Password";

        // Act

        NtlmPasswordAuthenticator auth2 = new NtlmPasswordAuthenticator("DOMAIN", "user", password2);
        NtlmPasswordAuthenticator auth3 = new NtlmPasswordAuthenticator("DOMAIN", "user", password3);

        // Test equality with same password
        assertEquals(auth1, auth2);
        assertEquals(auth1.hashCode(), auth2.hashCode());

        // Test inequality with different password

        // Verify it returns a clone, not the original
        password[0] = 'X';
        char[] password2 = authenticator.getPasswordAsCharArray();
        assertNotEquals(password[0], password2[0], "Should return a clone, not the original");
    }

    @Test
    public void testPasswordConstructorWithCharArray() {
        char[] passwordChars = "charArrayPassword".toCharArray();

* 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}.

///

     * 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
     */

Um dies zu lösen, konvertieren wir zunächst den `username` und das `password` in UTF-8-codierte `bytes`.

Dann können wir `secrets.compare_digest()` verwenden, um sicherzustellen, dass `credentials.username` `"stanleyjobson"` und `credentials.password` `"swordfish"` ist.

{* ../../docs_src/security/tutorial007_an_py39.py hl[1,12:24] *}

Dies wäre das gleiche wie:

```Python

        super();
    }

    /**
     * Adds a password for files matching the given regular expression pattern.
     * @param regex the regular expression pattern to match against URLs or resource names
     * @param password the password to use for matching files
     */
    public void addPassword(final String regex, final String password) {
        passwordMap.put(Pattern.compile(regex), password);
    }

    /**

            } else {
                // plain text
                password = new byte[(session.auth.password.length() + 1) * 2];
                passwordLength = writeString(session.auth.password, password, 0);
            }
        } else {
            // no password in tree connect
            passwordLength = 1;
        }

        dst[dstIndex] = disconnectTid ? (byte) 0x01 : (byte) 0x00;

If the passwords don't match, we return the same error.

#### Password hashing { #password-hashing }

"Hashing" means: converting some content (a password in this case) into a sequence of bytes (just a string) that looks like gibberish.

Whenever you pass exactly the same content (exactly the same password) you get exactly the same gibberish.