1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.hc.client5.http.auth;
29
30 /**
31 * Authentication schemes by their names supported by the HttpClient.
32 *
33 * @since 4.3
34 */
35 public final class StandardAuthScheme {
36
37 private StandardAuthScheme() {
38 // no instances
39 }
40
41 /**
42 * Basic authentication scheme (considered inherently insecure without TLS,
43 * but most widely supported).
44 */
45 public static final String BASIC = "Basic";
46
47 /**
48 * Digest authentication scheme.
49 */
50 public static final String DIGEST = "Digest";
51
52 /**
53 * Bearer authentication scheme (should be used with TLS).
54 */
55 public static final String BEARER = "Bearer";
56
57 /**
58 * The NTLM authentication scheme is a proprietary Microsoft Windows
59 * authentication protocol as defined in [MS-NLMP].
60 *
61 * @deprecated Do not use. the NTLM authentication scheme is no longer supported.
62 * Consider using Basic or Bearer authentication with TLS instead.
63 */
64 @Deprecated
65 public static final String NTLM = "NTLM";
66
67 /**
68 * SPNEGO authentication scheme as defined in RFC 4559 and RFC 4178.
69 *
70 * @deprecated Do not use. The GGS based experimental authentication schemes are no longer
71 * supported. Consider using Basic or Bearer authentication with TLS instead.
72 */
73 @Deprecated
74 public static final String SPNEGO = "Negotiate";
75
76 /**
77 * Kerberos authentication scheme as defined in RFC 4120.
78 *
79 * @deprecated Do not use. The GGS based experimental authentication schemes are no longer
80 * supported. Consider using Basic or Bearer authentication with TLS instead.
81 */
82 @Deprecated
83 public static final String KERBEROS = "Kerberos";
84
85 }