assertNull(context.getHashAlgos());
            assertNull(context.getSalt());
        }

        @Test
        @DisplayName("Should handle null hash algorithms")
        void testNullHashAlgorithms() {
            context = new PreauthIntegrityNegotiateContext(mockConfig, null, new byte[16]);

            assertNull(context.getHashAlgos());

type UUIDHash struct {
	uuid []byte
}

// Write -  implement hash.Hash Write
func (u UUIDHash) Write(p []byte) (n int, err error) {
	return len(p), nil
}

// Sum -  implement md5.Sum
func (u UUIDHash) Sum(b []byte) []byte {
	return u.uuid
}

// Reset -  implement hash.Hash Reset
func (u UUIDHash) Reset() {}

// Size -  implement hash.Hash Size
func (u UUIDHash) Size() int {
	return len(u.uuid)
}

      }
    }
    ALL_DIGITS = sb.toString();
  }

  /** Sample CharMatcher instances for benchmarking. */
  public enum SampleMatcherConfig {
    WHITESPACE(CharMatcher.whitespace(), WHITESPACE_CHARACTERS),
    HASH(CharMatcher.is('#'), "#"),
    ASCII(CharMatcher.ascii(), ASCII_CHARACTERS),
    WESTERN_DIGIT("0123456789"),
    ALL_DIGIT(CharMatcher.digit(), ALL_DIGITS),
    OPS_5("+-*/%"),

* 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).

///

## Multiple models { #multiple-models }

     * how to cache them.
     *
     * A typical use case is to hash the request body:
     *
     * ```kotlin
     *     val hash = body.sha256().hex()
     *     val query = Request
     *         .Builder()
     *         .query(body)
     *         .url("https://example.com/query")
     *         .cacheUrlOverride("https://example.com/query/$hash".toHttpUrl())
     *         .build()
     * ```
     *

        try {
            final MessageDigest md = MessageDigest.getInstance("SHA-256");
            final byte[] hash = md.digest(input.getBytes(StandardCharsets.UTF_8));
            final StringBuilder sb = new StringBuilder();
            for (final byte b : hash) {
                sb.append(String.format("%02x", b));
            }
            return sb.toString();

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.hash;

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Random;

// external zip tool is used or the ordering of file names in a directory
// or the current time.
package main

import (
	"archive/zip"
	"bytes"
	"flag"
	"fmt"
	"hash/crc32"
	"io/fs"
	"log"
	"os"
	"path/filepath"
	"strings"
)

func usage() {
	fmt.Fprintf(os.Stderr, "usage: go run mkzip.go zoneinfo.zip\n")
	os.Exit(2)
}

func main() {

    }

    /**
     * Calculates the LMv2 response using a pre-computed NT password hash.
     *
     * @param tc the CIFS context
     * @param type2 the Type-2 message containing the server challenge
     * @param domain the domain name
     * @param user the username
     * @param passwordHash
     *            NT password hash
     * @param clientChallenge the client challenge bytes
     * @return the calculated response

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.hash;

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Random;