.put("sHa-1", Hashing.sha1()) // Not the official name, but still works
          .put("SHA-1", Hashing.sha1())
          .put("SHA-256", Hashing.sha256())
          .put("SHA-384", Hashing.sha384())
          .put("SHA-512", Hashing.sha512())
          .build();

  public void testHashing() {
    for (String stringToTest : INPUTS) {
      for (String algorithmToTest : ALGORITHMS.keySet()) {

var KafkaSHA256 scram.HashGeneratorFcn = sha256.New

// KafkaSHA512 is a function that returns a crypto/sha512 hasher and should be used
// to create Client objects configured for SHA-512 hashing.
var KafkaSHA512 scram.HashGeneratorFcn = sha512.New

// XDGSCRAMClient implements the client-side of an authentication
// conversation with a server.  A new conversation must be created for

var KafkaSHA256 scram.HashGeneratorFcn = sha256.New

// KafkaSHA512 is a function that returns a crypto/sha512 hasher and should be used
// to create Client objects configured for SHA-512 hashing.
var KafkaSHA512 scram.HashGeneratorFcn = sha512.New

// XDGSCRAMClient implements the client-side of an authentication
// conversation with a server.  A new conversation must be created for

  fun decodeRsa512() {
    // The certificate + private key below was generated with OpenSSL. Never generate certificates
    // with MD5 or 512-bit RSA; that's insecure!
    //
    // openssl req \
    //   -x509 \
    //   -md5 \
    //   -nodes \
    //   -days 1 \
    //   -newkey rsa:512 \
    //   -keyout privateKey.key \
    //   -out certificate.crt
    val certificatePem =
      """

"3.7 OK"
"4.1.1 OK"
"4.1.2 OK"
"4.1.3 NON-STRICT"
"4.1.4 NON-STRICT"
"4.1.5 OK"
"4.2.1 OK"
"4.2.2 OK"
"4.2.3 NON-STRICT"
"4.2.4 OK"
"4.2.5 OK"
"5.1 OK"
"5.10 OK"
"5.11 OK"
"5.12 OK"
"5.13 OK"
"5.14 OK"
"5.15 OK"
"5.16 OK"
"5.17 OK"
"5.18 OK"
"5.19 OK"
"5.2 OK"
"5.20 OK"
"5.3 OK"
"5.4 OK"
"5.5 OK"
"5.6 OK"
"5.7 OK"
"5.8 OK"
"5.9 OK"

pkg os (darwin-amd64-cgo), const O_EXCL = 2048
pkg os (darwin-amd64-cgo), const O_SYNC = 128
pkg os (darwin-amd64-cgo), const O_TRUNC = 1024
pkg os (darwin-amd64-cgo), const PathListSeparator = 58
pkg os (darwin-amd64-cgo), const PathSeparator = 47
pkg os (freebsd-386), const DevNull = "/dev/null"
pkg os (freebsd-386), const O_APPEND = 8
pkg os (freebsd-386), const O_CREATE = 512
pkg os (freebsd-386), const O_EXCL = 2048

pkg syscall (netbsd-386), const CLONE_CSIGNAL ideal-int
pkg syscall (netbsd-386), const CLONE_FILES = 1024
pkg syscall (netbsd-386), const CLONE_FILES ideal-int
pkg syscall (netbsd-386), const CLONE_FS = 512
pkg syscall (netbsd-386), const CLONE_FS ideal-int
pkg syscall (netbsd-386), const CLONE_PID = 4096
pkg syscall (netbsd-386), const CLONE_PID ideal-int
pkg syscall (netbsd-386), const CLONE_PTRACE = 8192

      new ImmutableSortedMap.Builder<Integer, Long>(Ordering.natural())
          .put(1000, 0x433109b33e13e6edL)
          .put(800, 0x5f2f123bfc815f81L)
          .put(640, 0x6396fc6a67293cf4L)
          .put(512, 0x45c01b4934ddbbbeL)
          .put(409, 0xfcd19b617551db45L)
          .put(327, 0x4eee69e12854871eL)
          .put(261, 0xab753446a3bbd532L)
          .put(208, 0x54242fe06a291c3fL)
          .put(166, 0x4f7acff7703a635bL)

    CacheBuilder<Object, Object> builder =
        CacheBuilder.newBuilder().initialCapacity(512).maximumSize(Long.MAX_VALUE);
    LocalCache<?, ?> cache = ((LocalCache.LocalManualCache<?, ?>) builder.build()).localCache;
    assertThat(cache.segments.length * cache.segments[0].table.length()).isEqualTo(512);
  }

  @GwtIncompatible // maximumWeight
  public void testMaximumWeight_negative() {

```

If you set an empty lookup bind password, the lookup bind will use the unauthenticated authentication mechanism, as described in [RFC 4513 Section 5.1.2](https://tools.ietf.org/html/rfc4513#section-5.1.2).

### User lookup