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progs/perftest.c: Use from Glibc syscall numbers.
[catacomb] / symm / pmac1-def.h
1 /* -*-c-*-
2 *
3 * The PMAC1 message authentication mode
4 *
5 * (c) 2018 Straylight/Edgeware
6 */
7
8 /*----- Licensing notice --------------------------------------------------*
9 *
10 * This file is part of Catacomb.
11 *
12 * Catacomb is free software: you can redistribute it and/or modify it
13 * under the terms of the GNU Library General Public License as published
14 * by the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * Catacomb is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * Library General Public License for more details.
21 *
22 * You should have received a copy of the GNU Library General Public
23 * License along with Catacomb. If not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
25 * USA.
26 */
27
28 #ifndef CATACOMB_PMAC1_DEF_H
29 #define CATACOMB_PMAC1_DEF_H
30
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34
35 /*----- Header files ------------------------------------------------------*/
36
37 #include <stddef.h>
38
39 #include <mLib/bits.h>
40 #include <mLib/sub.h>
41
42 #ifndef CATACOMB_ARENA_H
43 # include "arena.h"
44 #endif
45
46 #ifndef CATACOMB_BLKC_H
47 # include "blkc.h"
48 #endif
49
50 #ifndef CATACOMB_PARANOIA_H
51 # include "paranoia.h"
52 #endif
53
54 #ifndef CATACOMB_RSVR_H
55 # include "rsvr.h"
56 #endif
57
58 /*----- Macros ------------------------------------------------------------*/
59
60 /* --- @PMAC1_DEF@ --- *
61 *
62 * Arguments: @PRE@, @pre@ = prefixes for the underlying block cipher
63 *
64 * Use: Creates an implementation for the PMAC1 message-
65 * authentication mode.
66 */
67
68 #define PMAC1_DEF(PRE, pre) PMAC1_DEFX(PRE, pre, #pre, #pre)
69
70 #define PMAC1_DEFX(PRE, pre, name, fname) \
71 \
72 OCB1_DECL(PRE, pre) \
73 \
74 const rsvr_policy pre##_ocb1policy = \
75 { RSVRF_FULL, PRE##_BLKSZ, PRE##_BLKSZ }; \
76 \
77 /* --- @pre_ocb1setkey@, @pre_pmac1setkey@ --- * \
78 * \
79 * Arguments: @pre_ocb1key *key@ = pointer to OCB1/PMAC1 key block \
80 * @ocnst void *k@ = pointer to key material \
81 * @size_t ksz@ = size of key material \
82 * \
83 * Returns: --- \
84 * \
85 * Use: Initializes a OCB1/PMAC1 key. This can be used for \
86 * several encryption and/or MAC operations. \
87 */ \
88 \
89 void pre##_ocb1setkey(pre##_ocb1key *key, const void *k, size_t ksz) \
90 { \
91 unsigned i; \
92 \
93 pre##_init(&key->ctx, k, ksz); \
94 BLKC_ZERO(PRE, key->lmask[0]); \
95 pre##_eblk(&key->ctx, key->lmask[0], key->lmask[0]); \
96 BLKC_BRSHIFT(PRE, IRRED, key->lxinv, key->lmask[0]); \
97 for (i = 1; i < OCB_NCALC; i++) \
98 BLKC_BLSHIFT(PRE, IRRED, key->lmask[i], key->lmask[i - 1]); \
99 } \
100 void pre##_pmac1setkey(pre##_pmac1key *key, const void *k, size_t ksz) \
101 { pre##_ocb1setkey((pre##_ocb1key *)key, k, ksz); } \
102 \
103 /* --- @pre_ocb1aadinit@, @pre_pmac1init --- * \
104 * \
105 * Arguments: @pre_ocb1aadctx *aad@ = pointer to context block \
106 * @pre_ocb1key *k@ = key block \
107 * \
108 * Returns: --- \
109 * \
110 * Use: Initializes an OCB1 AAD (`additional authenticated \
111 * data') or PMAC1 context associated witha a given key. \
112 * AAD contexts can be copied and/or reused, saving time \
113 * if the AAD for a number of messages has a common \
114 * prefix. \
115 * \
116 * The @key@ doesn't need to be kept around. \
117 */ \
118 \
119 void pre##_ocb1aadinit(pre##_ocb1aadctx *aad, const pre##_ocb1key *k) \
120 { \
121 aad->k = *k; \
122 aad->off = 0; aad->i = 1; \
123 BLKC_ZERO(PRE, aad->a); \
124 BLKC_ZERO(PRE, aad->o); \
125 } \
126 void pre##_pmac1init(pre##_pmac1ctx *ctx, const pre##_pmac1key *k) \
127 { pre##_ocb1aadinit((pre##_ocb1aadctx *)ctx, (pre##_ocb1key *)k); } \
128 \
129 /* --- @pre_ocb1aadhash@, @pre_pmac1hash@ --- * \
130 * \
131 * Arguments: @pre_ocb1aadctx *aad@ = pointer to context block \
132 * @ocnst void *p@ = pointer to message buffer \
133 * @size_t sz@ = size of message buffer \
134 * \
135 * Returns: --- \
136 * \
137 * Use: Hashes some AAD input data. \
138 */ \
139 \
140 void pre##_ocb1aadhash(pre##_ocb1aadctx *aad, const void *p, size_t sz) \
141 { \
142 rsvr_state st; \
143 uint32 t[PRE##_BLKSZ/4]; \
144 const octet *q; \
145 \
146 rsvr_setup(&st, &pre##_ocb1policy, aad->b, &aad->off, p, sz); \
147 RSVR_DO(&st) while ((q = RSVR_NEXT(&st, PRE##_BLKSZ)) != 0) { \
148 OCB_OFFSET(PRE, aad->o, aad->k.lmask, aad->i++); \
149 BLKC_LOAD(PRE, t, q); BLKC_XMOVE(PRE, t, aad->o); \
150 pre##_eblk(&aad->k.ctx, t, t); \
151 BLKC_XMOVE(PRE, aad->a, t); \
152 } \
153 } \
154 void pre##_pmac1hash(pre##_pmac1ctx *ctx, const void *p, size_t sz) \
155 { pre##_ocb1aadhash((pre##_ocb1aadctx *)ctx, p, sz); } \
156 \
157 /* --- @pre_ocb1aadtag@ --- * \
158 * \
159 * Arguments: @const pre_ocb1aadctx *aad@ = pointer to context block \
160 * @uint32 *u@ = where to write the tag \
161 * \
162 * Returns: --- \
163 * \
164 * Use: Finishes processing AAD and produces a tag which can be \
165 * mixed with an OCB1 checksum. This function is exposed \
166 * for internal reasons and is not expected to be \
167 * generally useful. \
168 */ \
169 \
170 void pre##_ocb1aadtag(const pre##_ocb1aadctx *aad, uint32 *t) \
171 { \
172 octet b[PRE##_BLKSZ]; \
173 \
174 BLKC_MOVE(PRE, t, aad->a); \
175 if (aad->off == PRE##_BLKSZ) { \
176 BLKC_XLOAD(PRE, t, aad->b); \
177 BLKC_XMOVE(PRE, t, aad->k.lxinv); \
178 } else { \
179 memcpy(b, aad->b, aad->off); b[aad->off] = 0x80; \
180 memset(b + aad->off + 1, 0, PRE##_BLKSZ - aad->off - 1); \
181 BLKC_XLOAD(PRE, t, b); \
182 } \
183 pre##_eblk(&aad->k.ctx, t, t); \
184 } \
185 \
186 /* --- @pre_pmac1done@ --- * \
187 * \
188 * Arguments: @pre_pmac1ctx *ctx@ = pointer to context block \
189 * @void *t@ = where to write the tag \
190 * \
191 * Returns: --- \
192 * \
193 * Use: Finishes a MAC operation and produces the tag. The \
194 * context is clobbered and can't be used for anything \
195 * useful any more. \
196 */ \
197 \
198 void pre##_pmac1done(pre##_pmac1ctx *ctx, void *t) \
199 { \
200 uint32 u[PRE##_BLKSZ]; \
201 pre##_ocb1aadtag((pre##_ocb1aadctx *)ctx, u); BLKC_STORE(PRE, t, u); \
202 } \
203 \
204 /* --- Generic MAC interface --- */ \
205 \
206 static const gmac_ops gkops; \
207 static const ghash_ops gops; \
208 \
209 typedef struct gkctx { \
210 gmac m; \
211 pre##_pmac1key k; \
212 } gkctx; \
213 \
214 typedef struct gctx { \
215 ghash h; \
216 pre##_pmac1ctx c; \
217 octet buf[PRE##_BLKSZ]; \
218 } gctx; \
219 \
220 static ghash *gkinit(gmac *m) \
221 { \
222 gkctx *gk = (gkctx *)m; \
223 gctx *g = S_CREATE(gctx); \
224 g->h.ops = &gops; \
225 pre##_pmac1init(&g->c, &gk->k); \
226 return (&g->h); \
227 } \
228 \
229 static gmac *gkey(const void *k, size_t sz) \
230 { \
231 gkctx *gk = S_CREATE(gkctx); \
232 gk->m.ops = &gkops; \
233 pre##_pmac1setkey(&gk->k, k, sz); \
234 return (&gk->m); \
235 } \
236 \
237 static void ghhash(ghash *h, const void *p, size_t sz) \
238 { gctx *g = (gctx *)h; pre##_pmac1hash(&g->c, p, sz); } \
239 \
240 static octet *ghdone(ghash *h, void *buf) \
241 { \
242 gctx *g = (gctx *)h; \
243 if (!buf) buf = g->buf; \
244 pre##_pmac1done(&g->c, buf); \
245 return (buf); \
246 } \
247 \
248 static ghash *ghcopy(ghash *h) \
249 { \
250 gctx *g = (gctx *)h; \
251 gctx *gg = S_CREATE(gctx); \
252 memcpy(gg, g, sizeof(gctx)); \
253 return (&gg->h); \
254 } \
255 \
256 static void ghdestroy(ghash *h) \
257 { gctx *g = (gctx *)h; BURN(*g); S_DESTROY(g); } \
258 \
259 static void gkdestroy(gmac *m) \
260 { gkctx *gk = (gkctx *)m; BURN(*gk); S_DESTROY(gk); } \
261 \
262 static ghash *ghinit(void) \
263 { \
264 assert(((void)"Attempt to instantiate an unkeyed MAC", 0)); \
265 return (0); \
266 } \
267 \
268 const gcmac pre##_pmac1 = \
269 { name "-pmac1", PRE##_BLKSZ, pre##_keysz, gkey }; \
270 static const gmac_ops gkops = { &pre##_pmac1, gkinit, gkdestroy }; \
271 static const gchash gch = { name "-pmac1", PRE##_BLKSZ, ghinit }; \
272 static const ghash_ops gops = \
273 { &gch, ghhash, ghdone, ghdestroy, ghcopy }; \
274 \
275 PMAC1_TESTX(PRE, pre, name, fname)
276
277 #define PMAC1_TEST(PRE, pre) HMAC_TESTX(PRE, pre, #pre, #pre)
278
279 /* --- @PMAC1_TEST@ --- *
280 *
281 * Arguments: @PRE@, @pre@ = prefixes for the underlying block cipher
282 *
283 * Use: Standard test rig for PMAC1 functions.
284 */
285
286 #ifdef TEST_RIG
287
288 #include <stdio.h>
289
290 #include <mLib/dstr.h>
291 #include <mLib/macros.h>
292 #include <mLib/quis.h>
293 #include <mLib/testrig.h>
294
295 #define PMAC1_TESTX(PRE, pre, name, fname) \
296 \
297 static int macverify(dstr *v) \
298 { \
299 pre##_pmac1ctx cctx; \
300 pre##_pmac1key ckey; \
301 int ok = 1; \
302 int i; \
303 octet *p; \
304 int szs[] = { 1, 7, 192, -1, 0 }, *ip; \
305 size_t csz; \
306 dstr d; \
307 \
308 dstr_create(&d); \
309 dstr_ensure(&d, PRE##_BLKSZ); \
310 d.len = PRE##_BLKSZ; \
311 \
312 pre##_pmac1setkey(&ckey, v[0].buf, v[0].len); \
313 \
314 for (ip = szs; *ip; ip++) { \
315 i = *ip; \
316 csz = v[1].len; \
317 if (i == -1) \
318 i = csz; \
319 if (i > csz) \
320 continue; \
321 p = (octet *)v[1].buf; \
322 pre##_pmac1init(&cctx, &ckey); \
323 while (csz) { \
324 if (i > csz) \
325 i = csz; \
326 pre##_pmac1hash(&cctx, p, i); \
327 p += i; \
328 csz -= i; \
329 } \
330 pre##_pmac1done(&cctx, d.buf); \
331 if (MEMCMP(d.buf, !=, v[2].buf, PRE##_BLKSZ)) { \
332 printf("\nfail:\n\tstep = %i\n\tkey = ", *ip); \
333 type_hex.dump(&v[0], stdout); \
334 fputs("\n\tinput = ", stdout); \
335 type_hex.dump(&v[1], stdout); \
336 fputs("\n\texpected = ", stdout); \
337 type_hex.dump(&v[2], stdout); \
338 fputs("\n\tcomputed = ", stdout); \
339 type_hex.dump(&d, stdout); \
340 putchar('\n'); \
341 ok = 0; \
342 } \
343 } \
344 \
345 dstr_destroy(&d); \
346 return (ok); \
347 } \
348 \
349 static test_chunk macdefs[] = { \
350 { name "-pmac1", macverify, \
351 { &type_hex, &type_hex, &type_hex, 0 } }, \
352 { 0, 0, { 0 } } \
353 }; \
354 \
355 int main(int argc, char *argv[]) \
356 { \
357 ego(argv[0]); \
358 test_run(argc, argv, macdefs, SRCDIR"/t/" fname); \
359 return (0); \
360 }
361
362 #else
363 # define PMAC1_TESTX(PRE, pre, name, fname)
364 #endif
365
366 /*----- That's all, folks -------------------------------------------------*/
367
368 #ifdef __cplusplus
369 }
370 #endif
371
372 #endif
Catacomb cryptographic library