// Verify hash is not null
        byte[] hash = transport.getPreauthIntegrityHash();
        assertNotNull(hash);

        // Verify hash is a copy, not the original
        byte[] hash2 = transport.getPreauthIntegrityHash();
        assertNotSame(hash, hash2);
        assertArrayEquals(hash, hash2);
    }

    /**
     * Test that pre-auth hash is reset on error
     */
    @Test

    }

    /**
     * Returns the hash code for this RegexRule.
     * @return The hash code.
     */
    @Override
    public int hashCode() {
        int hash = regexMap.hashCode();
        if (defaultRule) {
            hash = hash * 31 + 1;
        }
        if (allRequired) {
            hash = hash * 31 + 2;
        }
        return hash;
    }

    /**

            }
        }

        final String targetUrl = pathMappingHelper.replaceUrl(url);

        String hash;
        if (StringUtil.isNotBlank(form.hash)) {
            final String value = URLUtil.decode(form.hash, Constants.UTF_8);
            if (targetUrl.indexOf('#') == -1) {
                final StringBuilder buf = new StringBuilder(value.length() + 100);

    @DisplayName("Should calculate MD4 hash correctly")
    void testMD4Hash() {
        // Given
        String input = "Hello World";
        byte[] data = input.getBytes();

        // When
        MessageDigest md4 = Crypto.getMD4();
        byte[] hash = md4.digest(data);

        // Then
        assertNotNull(hash);
        assertEquals(16, hash.length); // MD4 produces 128-bit hash
    }

    @Test

        assertArrayEquals(testHash, avChannelBindings.getRaw(), "Value should match the provided hash");
    }

    /**
     * Test that the constructor handles a null channel binding hash.
     */
    @Test
    void testConstructorWithNullHash() {
        AvChannelBindings avChannelBindings = new AvChannelBindings(null);

    }

    /**
     * Gets the selected hash algorithm.
     *
     * @return the hash algorithm
     */
    public int getSelectedHashAlgorithm() {
        return selectedHashAlgorithm;
    }

    /**
     * Calculates hash according to SMB 3.1.1 preauth integrity specification.
     *
     * @param previousHash the previous hash in the chain
     * @param messageData the message data to hash

        buffer = new byte[BUFFER_SIZE];
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create instance with Configuration, hash algorithms and salt")
        void testConstructorWithConfigHashAlgosAndSalt() {
            int[] hashAlgos = { PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512 };
            byte[] salt = { 0x01, 0x02, 0x03, 0x04 };

                }
            }
        }
        return hash;
    }

    /**
     * Encodes a similar document hash using GZIP compression and Base64 encoding.
     * This reduces storage space for hash values while maintaining uniqueness.
     *
     * @param hash the hash string to encode

package jcifs.smb;

import org.bouncycastle.util.encoders.Hex;

/**
 * Authenticator directly specifing the user's NT hash
 *
 * @author mbechler
 *
 */
public class NtlmNtHashAuthenticator extends NtlmPasswordAuthenticator {

    private static final long serialVersionUID = 4328214169536360351L;
    /** The NT hash for authentication */
    private final byte[] ntHash;

    /**

        return nTOWFv2(domain, username, getNTHash(password));
    }

    /**
     * Generates the NTOWFv2 hash for the given domain, username, and password hash.
     *
     * @param domain the authentication domain
     * @param username the username
     * @param passwordHash
     *            NT password hash
     *
     * @return the calculated mac
     */