1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* plugins/preauth/spake/t_vectors.c - SPAKE test vector verification */
3 /*
4 * Copyright (C) 2015 by the Massachusetts Institute of Technology.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
24 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
30 * OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include "k5-int.h"
34 #include "k5-hex.h"
35 #include "groups.h"
36 #include "iana.h"
37 #include "util.h"
38 #include <ctype.h>
39
40 struct test {
41 krb5_enctype enctype;
42 int32_t group;
43 const char *ikey;
44 const char *w;
45 const char *x;
46 const char *y;
47 const char *T;
48 const char *S;
49 const char *K;
50 const char *support;
51 const char *challenge;
52 const char *thash;
53 const char *body;
54 const char *K0;
55 const char *K1;
56 const char *K2;
57 const char *K3;
58 } tests[] = {
59 { ENCTYPE_DES3_CBC_SHA1, SPAKE_GROUP_EDWARDS25519,
60 /* initial key, w, x, y, T, S, K */
61 "850BB51358548CD05E86768C313E3BFEF7511937DCF72C3E",
62 "686D84730CB8679AE95416C6567C6A63F2C9CEF124F7A3371AE81E11CAD42A37",
63 "201012D07BFD48DDFA33C4AAC4FB1E229FB0D043CFE65EBFB14399091C71A723",
64 "500B294797B8B042ACA1BEDC0F5931A4F52C537B3608B2D05CC8A2372F439F25",
65 "18F511E750C97B592ACD30DB7D9E5FCA660389102E6BF610C1BFBED4616C8362",
66 "5D10705E0D1E43D5DBF30240CCFBDE4A0230C70D4C79147AB0B317EDAD2F8AE7",
67 "25BDE0D875F0FEB5755F45BA5E857889D916ECF7476F116AA31DC3E037EC4292",
68 /* support, challenge, thash, body */
69 "A0093007A0053003020101",
70 "A1363034A003020101A122042018F511E750C97B592ACD30DB7D9E5FCA660389"
71 "102E6BF610C1BFBED4616C8362A20930073005A003020101",
72 "EAAA08807D0616026FF51C849EFBF35BA0CE3C5300E7D486DA46351B13D4605B",
73 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
74 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
75 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
76 "303130313030303030305AA703020100A8053003020110",
77 /* K'[0], K'[1], K'[2], K'[3] */
78 "BAF12FAE7CD958CBF1A29BFBC71F89CE49E03E295D89DAFD",
79 "64F73DD9C41908206BCEC1F719026B574F9D13463D7A2520",
80 "0454520B086B152C455829E6BAEFF78A61DFE9E3D04A895D",
81 "4A92260B25E3EF94C125D5C24C3E5BCED5B37976E67F25C4",
82 },
83
84 { ENCTYPE_ARCFOUR_HMAC, SPAKE_GROUP_EDWARDS25519,
85 /* initial key, w, x, y, T, S, K */
86 "8846F7EAEE8FB117AD06BDD830B7586C",
87 "7C86659D29CF2B2EA93BFE79C3CEFB8850E82215B3EA6FCD896561D48048F49C",
88 "C8A62E7B626F44CAD807B2D695450697E020D230A738C5CD5691CC781DCE8754",
89 "18FE7C1512708C7FD06DB270361F04593775BC634CEAF45347E5C11C38AAE017",
90 "7DB465F1C08C64983A19F560BCE966FE5306C4B447F70A5BCA14612A92DA1D63",
91 "38F8D4568090148EBC9FD17C241B4CC2769505A7CA6F3F7104417B72B5B5CF54",
92 "03E75EDD2CD7E7677642DD68736E91700953AC55DC650E3C2A1B3B4ACDB800F8",
93 /* support, challenge, thash, body */
94 "A0093007A0053003020101",
95 "A1363034A003020101A12204207DB465F1C08C64983A19F560BCE966FE5306C4"
96 "B447F70A5BCA14612A92DA1D63A20930073005A003020101",
97 "F4B208458017DE6EF7F6A307D47D87DB6C2AF1D291B726860F68BC08BFEF440A",
98 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
99 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
100 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
101 "303130313030303030305AA703020100A8053003020117",
102 /* K'[0], K'[1], K'[2], K'[3] */
103 "770B720C82384CBB693E85411EEDECBA",
104 "621DEEC88E2865837C4D3462BB50A1D5",
105 "1CC8F6333B9FA3B42662FD9914FBD5BB",
106 "EDB4032B7FC3806D5211A534DCBC390C",
107 },
108
109 { ENCTYPE_AES128_CTS_HMAC_SHA1_96, SPAKE_GROUP_EDWARDS25519,
110 /* initial key, w, x, y, T, S, K */
111 "FCA822951813FB252154C883F5EE1CF4",
112 "0D591B197B667E083C2F5F98AC891D3C9F99E710E464E62F1FB7C9B67936F3EB",
113 "50BE049A5A570FA1459FB9F666E6FD80602E4E87790A0E567F12438A2C96C138",
114 "B877AFE8612B406D96BE85BD9F19D423E95BE96C0E1E0B5824127195C3ED5917",
115 "9E9311D985C1355E022D7C3C694AD8D6F7AD6D647B68A90B0FE46992818002DA",
116 "FBE08F7F96CD5D4139E7C9ECCB95E79B8ACE41E270A60198C007DF18525B628E",
117 "C2F7F99997C585E6B686CEB62DB42F17CC70932DEF3BB4CF009E36F22EA5473D",
118 /* support, challenge, thash, body */
119 "A0093007A0053003020101",
120 "A1363034A003020101A12204209E9311D985C1355E022D7C3C694AD8D6F7AD6D"
121 "647B68A90B0FE46992818002DAA20930073005A003020101",
122 "951285F107C87F0169B9C918A1F51F60CB1A75B9F8BB799A99F53D03ADD94B5F",
123 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
124 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
125 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
126 "303130313030303030305AA703020100A8053003020111",
127 /* K'[0], K'[1], K'[2], K'[3] */
128 "548022D58A7C47EAE8C49DCCF6BAA407",
129 "B2C9BA0E13FC8AB3A9D96B51B601CF4A",
130 "69F0EE5FDB6C237E7FCD38D9F87DF1BD",
131 "78F91E2240B5EE528A5CC8D7CBEBFBA5",
132 },
133 { ENCTYPE_AES256_CTS_HMAC_SHA1_96, SPAKE_GROUP_EDWARDS25519,
134 /* initial key, w, x, y, T, S, K */
135 "01B897121D933AB44B47EB5494DB15E50EB74530DBDAE9B634D65020FF5D88C1",
136 "E902341590A1B4BB4D606A1C643CCCB3F2108F1B6AA97B381012B9400C9E3F4E",
137 "88C6C0A4F0241EF217C9788F02C32D00B72E4310748CD8FB5F94717607E6417D",
138 "88B859DF58EF5C69BACDFE681C582754EAAB09A74DC29CFF50B328613C232F55",
139 "6F301AACAE1220E91BE42868C163C5009AEEA1E9D9E28AFCFC339CDA5E7105B5",
140 "9E2CC32908FC46273279EC75354B4AEAFA70C3D99A4D507175ED70D80B255DDA",
141 "CF57F58F6E60169D2ECC8F20BB923A8E4C16E5BC95B9E64B5DC870DA7026321B",
142 /* support, challenge, thash, body */
143 "A0093007A0053003020101",
144 "A1363034A003020101A12204206F301AACAE1220E91BE42868C163C5009AEEA1"
145 "E9D9E28AFCFC339CDA5E7105B5A20930073005A003020101",
146 "1C605649D4658B58CBE79A5FAF227ACC16C355C58B7DADE022F90C158FE5ED8E",
147 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
148 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
149 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
150 "303130313030303030305AA703020100A8053003020112",
151 /* K'[0], K'[1], K'[2], K'[3] */
152 "A9BFA71C95C575756F922871524B65288B3F695573CCC0633E87449568210C23",
153 "1865A9EE1EF0640EC28AC007391CAC624C42639C714767A974E99AA10003015F",
154 "E57781513FEFDB978E374E156B0DA0C1A08148F5EB26B8E157AC3C077E28BF49",
155 "008E6487293C3CC9FABBBCDD8B392D6DCB88222317FD7FE52D12FBC44FA047F1",
156 },
157
158 #ifdef SPAKE_OPENSSL
159 { ENCTYPE_AES256_CTS_HMAC_SHA1_96, SPAKE_GROUP_P256,
160 /* initial key, w, x, y, T, S, K */
161 "01B897121D933AB44B47EB5494DB15E50EB74530DBDAE9B634D65020FF5D88C1",
162 "EB2984AF18703F94DD5288B8596CD36988D0D4E83BFB2B44DE14D0E95E2090BD",
163 "935DDD725129FB7C6288E1A5CC45782198A6416D1775336D71EACD0549A3E80E",
164 "E07405EB215663ABC1F254B8ADC0DA7A16FEBAA011AF923D79FDEF7C42930B33",
165 "024F62078CEB53840D02612195494D0D0D88DE21FEEB81187C71CBF3D01E71788D",
166 "021D07DC31266FC7CFD904CE2632111A169B7EC730E5F74A7E79700F86638E13C8",
167 "0268489D7A9983F2FDE69C6E6A1307E9D252259264F5F2DFC32F58CCA19671E79B",
168 /* support, challenge, thash, body */
169 "A0093007A0053003020102",
170 "A1373035A003020102A1230421024F62078CEB53840D02612195494D0D0D88DE"
171 "21FEEB81187C71CBF3D01E71788DA20930073005A003020101",
172 "20AD3C1A9A90FC037D1963A1C4BFB15AB4484D7B6CF07B12D24984F14652DE60",
173 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
174 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
175 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
176 "303130313030303030305AA703020100A8053003020112",
177 /* K'[0], K'[1], K'[2], K'[3] */
178 "7D3B906F7BE49932DB22CD3463F032D06C9C078BE4B1D076D201FC6E61EF531E",
179 "17D74E36F8993841FBB7FEB12FA4F011243D3AE4D2ACE55B39379294BBC4DB2C",
180 "D192C9044081A2AA6A97A6C69E2724E8E5671C2C9CE073DD439CDBAF96D7DAB0",
181 "41E5BAD6B67F12C53CE0E2720DD6A9887F877BF9463C2D5209C74C36F8D776B7",
182 },
183
184 { ENCTYPE_AES256_CTS_HMAC_SHA1_96, SPAKE_GROUP_P384,
185 /* initial key, w, x, y, T, S, K */
186 "01B897121D933AB44B47EB5494DB15E50EB74530DBDAE9B634D65020FF5D88C1",
187 "0304CFC55151C6BBE889653DB96DBFE0BA4ACAFC024C1E8840CB3A486F6D80C1"
188 "6E1B8974016AA4B7FA43042A9B3825B1",
189 "F323CA74D344749096FD35D0ADF20806E521460637176E84D977E9933C49D76F"
190 "CFC6E62585940927468FF53D864A7A50",
191 "5B7C709ACB175A5AFB82860DEABCA8D0B341FACDFF0AC0F1A425799AA905D750"
192 "7E1EA9C573581A81467437419466E472",
193 "02A1524603EF14F184696F854229D3397507A66C63F841BA748451056BE07879"
194 "AC298912387B1C5CDFF6381C264701BE57",
195 "020D5ADFDB92BC377041CF5837412574C5D13E0F4739208A4F0C859A0A302BC6"
196 "A533440A245B9D97A0D34AF5016A20053D",
197 "0264AA8C61DA9600DFB0BEB5E46550D63740E4EF29E73F1A30D543EB43C25499"
198 "037AD16538586552761B093CF0E37C703A",
199 /* support, challenge, thash, body */
200 "A0093007A0053003020103",
201 "A1473045A003020103A133043102A1524603EF14F184696F854229D3397507A6"
202 "6C63F841BA748451056BE07879AC298912387B1C5CDFF6381C264701BE57A209"
203 "30073005A003020101",
204 "5AC0D99EF9E5A73998797FE64F074673E3952DEC4C7D1AACCE8B75F64D2B0276"
205 "A901CB8539B4E8ED69E4DB0CE805B47B",
206 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
207 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
208 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
209 "303130313030303030305AA703020100A8053003020112",
210 /* K'[0], K'[1], K'[2], K'[3] */
211 "B917D37C16DD1D8567FBE379F64E1EE36CA3FD127AA4E60F97E4AFA3D9E56D91",
212 "93D40079DAB229B9C79366829F4E7E7282E6A4B943AC7BAC69922D516673F49A",
213 "BFC4F16F12F683E71589F9A888E232875EF293AC9793DB6C919567CD7B94BCD4",
214 "3630E2B5B99938E7506733141E8EC344166F6407E5FC2EF107C156E764D1BC20",
215 },
216
217 { ENCTYPE_AES256_CTS_HMAC_SHA1_96, SPAKE_GROUP_P521,
218 /* initial key, w, x, y, T, S, K */
219 "01B897121D933AB44B47EB5494DB15E50EB74530DBDAE9B634D65020FF5D88C1",
220 "DE3A095A2B2386EFF3EB15B735398DA1CAF95BC8425665D82370AFF58B0471F3"
221 "4A57BCCDDF1EBF0A2965B58A93EE5B45E85D1A5435D1C8C83662999722D54283"
222 "1F9A",
223 "017C38701A14B490B6081DFC83524562BE7FBB42E0B20426465E3E37952D30BC"
224 "AB0ED857010255D44936A1515607964A870C7C879B741D878F9F9CDF5A865306"
225 "F3F5",
226 "003E2E2950656FA231E959ACDD984D125E7FA59CEC98126CBC8F3888447911EB"
227 "CD49428A1C22D5FDB76A19FBEB1D9EDFA3DA6CF55B158B53031D05D51433ADE9"
228 "B2B4",
229 "02017D3DE19A3EC53D0174905665EF37947D142535102CD9809C0DFBD0DFE007"
230 "353D54CF406CE2A59950F2BB540DF6FBE75F8BBBEF811C9BA06CC275ADBD9675"
231 "6696EC",
232 "02004D142D87477841F6BA053C8F651F3395AD264B7405CA5911FB9A55ABD454"
233 "FEF658A5F9ED97D1EFAC68764E9092FA15B9E0050880D78E95FD03ABF5931791"
234 "6822B5",
235 "03007C303F62F09282CC849490805BD4457A6793A832CBEB55DF427DB6A31E99"
236 "B055D5DC99756D24D47B70AD8B6015B0FB8742A718462ED423B90FA3FE631AC1"
237 "3FA916",
238 /* support, challenge, thash, body */
239 "A0093007A0053003020104",
240 "A1593057A003020104A145044302017D3DE19A3EC53D0174905665EF37947D14"
241 "2535102CD9809C0DFBD0DFE007353D54CF406CE2A59950F2BB540DF6FBE75F8B"
242 "BBEF811C9BA06CC275ADBD96756696ECA20930073005A003020101",
243 "8D6A89AE4D80CC4E47B6F4E48EA3E57919CC69598D0D3DC7C8BD49B6F1DB1409"
244 "CA0312944CD964E213ABA98537041102237CFF5B331E5347A0673869B412302E",
245 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
246 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
247 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
248 "303130313030303030305AA703020100A8053003020112",
249 /* K'[0], K'[1], K'[2], K'[3] */
250 "1EB3D10BEE8FAB483ADCD3EB38F3EBF1F4FEB8DB96ECC035F563CF2E1115D276",
251 "482B92781CE57F49176E4C94153CC622FE247A7DBE931D1478315F856F085890",
252 "A2C215126DD3DF280AAB5A27E1E0FB7E594192CBFF8D6D8E1B6F1818D9BB8FAC",
253 "CC06603DE984324013A01F888DE6D43B410A4DA2DEA53509F30E433C352FB668",
254 },
255 #endif /* SPAKE_OPENSSL */
256
257 /* Successful optimistic challenge (no support message in transcript) */
258 { ENCTYPE_AES256_CTS_HMAC_SHA1_96, SPAKE_GROUP_EDWARDS25519,
259 /* initial key, w, x, y, T, S, K */
260 "01B897121D933AB44B47EB5494DB15E50EB74530DBDAE9B634D65020FF5D88C1",
261 "E902341590A1B4BB4D606A1C643CCCB3F2108F1B6AA97B381012B9400C9E3F4E",
262 "70937207344CAFBC53C8A55070E399C584CBAFCE00B836980DD4E7E74FAD2A64",
263 "785D6801A2490DF028903AC6449B105F2FF0DB895B252953CDC2076649526103",
264 "83523B35F1565006CBFC4F159885467C2FB9BC6FE23D36CB1DA43D199F1A3118",
265 "2A8F70F46CEE9030700037B77F22CEC7970DCC238E3E066D9D726BAF183992C6",
266 "D3C5E4266AA6D1B2873A97CE8AF91C7E4D7A7AC456ACCED7908D34C561AD8FA6",
267 /* support, challenge, thash, body */
268 NULL,
269 "A1363034A003020101A122042083523B35F1565006CBFC4F159885467C2FB9BC"
270 "6FE23D36CB1DA43D199F1A3118A20930073005A003020101",
271 "26F07F9F8965307434D11EA855461D41E0CBABCC0A1BAB48ECEE0C6C1A4292B7",
272 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
273 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
274 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
275 "303130313030303030305AA703020100A8053003020112",
276 /* K'[0], K'[1], K'[2], K'[3] */
277 "4569EC08B5DE5C3CC19D941725913ACE8D74524B521A341DC746ACD5C3784D92",
278 "0D96CE1A4AC0F2E280A0CFC31742B06461D83D04AE45433DB2D80478DD882A4C",
279 "58018C19315A1BA5D5BB9813B58029F0AEC18A6F9CA59E0847DE1C60BC25945C",
280 "ED7E9BFFD68C54D86FB19CD3C03F317F88A71AD9A5E94C28581D93FC4EC72B6A",
281 },
282
283 #ifdef SPAKE_OPENSSL
284 /* Rejected optimistic challenge (no support message in transcript),
285 * falling back from edwards25519 to P-521 */
286 { ENCTYPE_AES256_CTS_HMAC_SHA1_96, SPAKE_GROUP_P521,
287 /* initial key, w, x, y, T, S, K */
288 "01B897121D933AB44B47EB5494DB15E50EB74530DBDAE9B634D65020FF5D88C1",
289 "DE3A095A2B2386EFF3EB15B735398DA1CAF95BC8425665D82370AFF58B0471F3"
290 "4A57BCCDDF1EBF0A2965B58A93EE5B45E85D1A5435D1C8C83662999722D54283"
291 "1F9A",
292 "01687B59051BF40048D7C31D5A973D792FA12284B7A447E7F5938B5885CA0BB2"
293 "C3F0BD30291A55FEA08E143E2E04BDD7D19B753C7C99032F06CAB0D9C2AA8F83"
294 "7EF7",
295 "01DED675EBF74FE30C9A53710F577E9CF84F09F6048FE245A4600004884CC167"
296 "733F9A9E43108FB83BABE8754CD37CBD7025E28BC9FF870F084C7244F536285E"
297 "25B4",
298 "02014CB2E5B592ECE5990F0EF30D308C061DE1598BC4272B4A6599BED466FD15"
299 "21693642ABCF4DBE36CE1A2D13967DE45F6C4F8D0FA8E14428BF03FB96EF5F1E"
300 "D3E645",
301 "02016C64995E804416F748FD5FA3AA678CBC7CBB596A4F523132DC8AF7CE84E5"
302 "41F484A2C74808C6B21DCF7775BAEFA6753398425BECC7B838B210AC5DAA0CB0"
303 "B710E2",
304 "0200997F4848AE2E7A98C23D14AC662030743AB37FCCC2A45F1C721114F40BCC"
305 "80FE6EC6ABA49868F8AEA1AA994D50E81B86D3E4D3C1130C8695B68907C673D9"
306 "E5886A",
307 /* support, challenge, thash, body */
308 "A0093007A0053003020104",
309 "A1593057A003020104A145044302014CB2E5B592ECE5990F0EF30D308C061DE1"
310 "598BC4272B4A6599BED466FD1521693642ABCF4DBE36CE1A2D13967DE45F6C4F"
311 "8D0FA8E14428BF03FB96EF5F1ED3E645A20930073005A003020101",
312 "D0EFED5E3E2C39C26034756D92A66FEC3082AD793D0197F3F89AD36026F146A3"
313 "996E548AA3FC49E2E82F8CAC5D132C505AA475B39E7BE79CDED22C26C41AA777",
314 "3075A00703050000000000A1143012A003020101A10B30091B07726165627572"
315 "6EA2101B0E415448454E412E4D49542E454455A3233021A003020102A11A3018"
316 "1B066B72627467741B0E415448454E412E4D49542E454455A511180F31393730"
317 "303130313030303030305AA703020100A8053003020112",
318 /* K'[0], K'[1], K'[2], K'[3] */
319 "631FCC8596E7F40E59045950D72AA0B7BAC2810A07B767050E983841CF3A2D4C",
320 "881464920117074DBC67155A8F3341D1121EF65F78EA0380BFA81A134C1C47B1",
321 "377B72AC3AF2CAAD582D73AE4682FD56B531EE56706200DD6C38C42B8219837A",
322 "35AD8E4D580ED3F0D15AD928329773C081BD19F9A56363F3A5F77C7E66108C26",
323 },
324 #endif /* SPAKE_OPENSSL */
325 };
326
327 static krb5_context ctx;
328
329 static void
check(krb5_error_code code)330 check(krb5_error_code code)
331 {
332 const char *errmsg;
333
334 if (code) {
335 errmsg = krb5_get_error_message(ctx, code);
336 assert(errmsg != NULL);
337 abort();
338 }
339 }
340
341 static void
check_key_equal(const krb5_keyblock * kb1,const krb5_keyblock * kb2)342 check_key_equal(const krb5_keyblock *kb1, const krb5_keyblock *kb2)
343 {
344 assert(kb1->enctype == kb2->enctype);
345 assert(kb1->length == kb2->length);
346 assert(memcmp(kb1->contents, kb2->contents, kb1->length) == 0);
347 }
348
349 static krb5_data *
decode_data(const char * s)350 decode_data(const char *s)
351 {
352 uint8_t *bytes;
353 size_t len;
354 krb5_data *d;
355
356 if (k5_hex_decode(s, &bytes, &len) != 0)
357 abort();
358 d = malloc(sizeof(*d));
359 assert(d != NULL);
360 *d = make_data(bytes, len);
361 return d;
362 }
363
364 static krb5_keyblock *
decode_keyblock(krb5_enctype enctype,const char * s)365 decode_keyblock(krb5_enctype enctype, const char *s)
366 {
367 uint8_t *bytes;
368 size_t len;
369 krb5_keyblock *kb;
370
371 if (k5_hex_decode(s, &bytes, &len) != 0)
372 abort();
373 kb = malloc(sizeof(*kb));
374 kb->magic = KV5M_KEYBLOCK;
375 kb->enctype = enctype;
376 kb->length = len;
377 kb->contents = bytes;
378 return kb;
379 }
380
381 static void
run_test(const struct test * t)382 run_test(const struct test *t)
383 {
384 groupstate *gstate;
385 krb5_keyblock *ikey, *K0, *K1, *K2, *K3, *kb;
386 krb5_data *w, *x, *y, *T, *S, *K, *support, *challenge, *thash;
387 krb5_data *body, wbytes, result, hash, empty = empty_data();
388
389 /* Decode hex strings into keyblocks and byte strings. */
390 ikey = decode_keyblock(t->enctype, t->ikey);
391 w = decode_data(t->w);
392 x = decode_data(t->x);
393 y = decode_data(t->y);
394 T = decode_data(t->T);
395 S = decode_data(t->S);
396 K = decode_data(t->K);
397 support = (t->support != NULL) ? decode_data(t->support) : NULL;
398 challenge = decode_data(t->challenge);
399 thash = decode_data(t->thash);
400 body = decode_data(t->body);
401 K0 = decode_keyblock(t->enctype, t->K0);
402 K1 = decode_keyblock(t->enctype, t->K1);
403 K2 = decode_keyblock(t->enctype, t->K2);
404 K3 = decode_keyblock(t->enctype, t->K3);
405
406 check(derive_wbytes(ctx, t->group, ikey, &wbytes));
407 assert(data_eq(*w, wbytes));
408
409 /* Verify KDC-side result computation. */
410 check(group_init_state(ctx, TRUE, &gstate));
411 check(group_result(ctx, gstate, t->group, &wbytes, x, S, &result));
412 assert(data_eq(*K, result));
413 krb5_free_data_contents(ctx, &result);
414 group_free_state(gstate);
415
416 /* Verify client-side result computation. */
417 check(group_init_state(ctx, FALSE, &gstate));
418 check(group_result(ctx, gstate, t->group, &wbytes, y, T, &result));
419 assert(data_eq(*K, result));
420 krb5_free_data_contents(ctx, &result);
421
422 /* Verify transcript hash. */
423 hash = empty_data();
424 check(update_thash(ctx, gstate, t->group, &hash, support, challenge));
425 check(update_thash(ctx, gstate, t->group, &hash, S, &empty));
426 assert(data_eq(*thash, hash));
427 krb5_free_data_contents(ctx, &hash);
428
429 /* Verify derived keys. */
430 check(derive_key(ctx, gstate, t->group, ikey, &wbytes, K, thash, body, 0,
431 &kb));
432 check_key_equal(K0, kb);
433 krb5_free_keyblock(ctx, kb);
434 check(derive_key(ctx, gstate, t->group, ikey, &wbytes, K, thash, body, 1,
435 &kb));
436 check_key_equal(K1, kb);
437 krb5_free_keyblock(ctx, kb);
438 check(derive_key(ctx, gstate, t->group, ikey, &wbytes, K, thash, body, 2,
439 &kb));
440 check_key_equal(K2, kb);
441 krb5_free_keyblock(ctx, kb);
442 check(derive_key(ctx, gstate, t->group, ikey, &wbytes, K, thash, body, 3,
443 &kb));
444 check_key_equal(K3, kb);
445 krb5_free_keyblock(ctx, kb);
446
447 group_free_state(gstate);
448 krb5_free_data_contents(ctx, &wbytes);
449 krb5_free_keyblock(ctx, ikey);
450 krb5_free_data(ctx, w);
451 krb5_free_data(ctx, x);
452 krb5_free_data(ctx, y);
453 krb5_free_data(ctx, T);
454 krb5_free_data(ctx, S);
455 krb5_free_data(ctx, K);
456 krb5_free_data(ctx, support);
457 krb5_free_data(ctx, challenge);
458 krb5_free_data(ctx, thash);
459 krb5_free_data(ctx, body);
460 krb5_free_keyblock(ctx, K0);
461 krb5_free_keyblock(ctx, K1);
462 krb5_free_keyblock(ctx, K2);
463 krb5_free_keyblock(ctx, K3);
464 }
465
466 int
main()467 main()
468 {
469 size_t i;
470
471 check(krb5_init_context(&ctx));
472 for (i = 0; i < sizeof(tests) / sizeof(*tests); i++)
473 run_test(&tests[i]);
474 krb5_free_context(ctx);
475 return 0;
476 }
477