1 /*
2 * GordianKnot: Security Suite
3 * Copyright 2012-2026. Tony Washer
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
6 * use this file except in compliance with the License. You may obtain a copy
7 * of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14 * License for the specific language governing permissions and limitations under
15 * the License.
16 */
17 package io.github.tonywasher.joceanus.gordianknot.api.keypair;
18
19 import org.bouncycastle.crypto.agreement.DHStandardGroups;
20 import org.bouncycastle.crypto.params.DHParameters;
21
22 /**
23 * DH Groups.
24 */
25 public enum GordianDHGroup {
26 /**
27 * ffdhe 2048.
28 */
29 FFDHE2048(DHStandardGroups.rfc7919_ffdhe2048),
30
31 /**
32 * std 2048.
33 */
34 STD2048(DHStandardGroups.rfc3526_2048),
35
36 /**
37 * std 1024.
38 */
39 STD1024(DHStandardGroups.rfc2409_1024),
40
41 /**
42 * std 2048.
43 */
44 STD1536(DHStandardGroups.rfc3526_1536),
45
46 /**
47 * std 3072.
48 */
49 STD3072(DHStandardGroups.rfc3526_3072),
50
51 /**
52 * ffdhe 3072.
53 */
54 FFDHE3072(DHStandardGroups.rfc7919_ffdhe3072),
55
56 /**
57 * std 4096.
58 */
59 STD4096(DHStandardGroups.rfc3526_4096),
60
61 /**
62 * ffdhe 4096.
63 */
64 FFDHE4096(DHStandardGroups.rfc7919_ffdhe4096),
65
66 /**
67 * std 6144.
68 */
69 STD6144(DHStandardGroups.rfc3526_6144),
70
71 /**
72 * ffdhe 6144.
73 */
74 FFDHE6144(DHStandardGroups.rfc7919_ffdhe6144),
75
76 /**
77 * std 8192.
78 */
79 STD8192(DHStandardGroups.rfc3526_8192),
80
81 /**
82 * ffdhe 8192.
83 */
84 FFDHE8192(DHStandardGroups.rfc7919_ffdhe8192);
85
86 /**
87 * The DH Group.
88 */
89 private final DHParameters theParameters;
90
91 /**
92 * Constructor.
93 *
94 * @param pParams the parameters
95 */
96 GordianDHGroup(final DHParameters pParams) {
97 theParameters = pParams;
98 }
99
100 /**
101 * Obtain the parameters.
102 *
103 * @return the parameters
104 */
105 public DHParameters getParameters() {
106 return theParameters;
107 }
108
109 /**
110 * Obtain the group for parameters.
111 *
112 * @param pParams the parameters
113 * @return the group
114 */
115 public static GordianDHGroup getGroupForParams(final DHParameters pParams) {
116 /* Loop through the values */
117 for (GordianDHGroup myGroup : values()) {
118 if (myGroup.getParameters().equals(pParams)) {
119 return myGroup;
120 }
121 }
122 return null;
123 }
124 }