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55d81656 MW |
1 | /* -*-c-*- |
2 | * | |
3 | * ChaCha stream cipher | |
4 | * | |
5 | * (c) 2015 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 | |
13 | * it under the terms of the GNU Library General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of the | |
15 | * License, or (at your option) any later version. | |
16 | * | |
17 | * Catacomb is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU 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 | |
24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
25 | * MA 02111-1307, USA. | |
26 | */ | |
27 | ||
28 | /*----- Header files ------------------------------------------------------*/ | |
29 | ||
e10e6494 MW |
30 | #include "config.h" |
31 | ||
55d81656 MW |
32 | #include <stdarg.h> |
33 | ||
34 | #include <mLib/bits.h> | |
35 | ||
36 | #include "arena.h" | |
37 | #include "chacha.h" | |
38 | #include "chacha-core.h" | |
e10e6494 | 39 | #include "dispatch.h" |
55d81656 MW |
40 | #include "gcipher.h" |
41 | #include "grand.h" | |
42 | #include "keysz.h" | |
43 | #include "paranoia.h" | |
44 | ||
45 | /*----- Global variables --------------------------------------------------*/ | |
46 | ||
47 | const octet chacha_keysz[] = { KSZ_SET, 32, 16, 10, 0 }; | |
48 | ||
49 | /*----- The ChaCha core function and utilities ----------------------------*/ | |
50 | ||
51 | /* --- @core@ --- * | |
52 | * | |
53 | * Arguments: @unsigned r@ = number of rounds | |
54 | * @const chacha_matrix src@ = input matrix | |
55 | * @chacha_matrix dest@ = where to put the output | |
56 | * | |
57 | * Returns: --- | |
58 | * | |
59 | * | |
60 | * Use: Apply the ChaCha/r core function to @src@, writing the | |
61 | * result to @dest@. This consists of @r@ rounds followed by | |
62 | * the feedforward step. | |
63 | */ | |
64 | ||
8a1aa284 MW |
65 | CPU_DISPATCH(static, (void), void, core, |
66 | (unsigned r, const chacha_matrix src, chacha_matrix dest), | |
67 | (r, src, dest), pick_core, simple_core); | |
e10e6494 MW |
68 | |
69 | static void simple_core(unsigned r, const chacha_matrix src, | |
70 | chacha_matrix dest) | |
55d81656 MW |
71 | { CHACHA_nR(dest, src, r); CHACHA_FFWD(dest, src); } |
72 | ||
0f23f75f MW |
73 | #if CPUFAM_X86 || CPUFAM_AMD64 |
74 | extern core__functype chacha_core_x86ish_sse2; | |
e10e6494 MW |
75 | #endif |
76 | ||
704d59c8 MW |
77 | #if CPUFAM_ARMEL |
78 | extern core__functype chacha_core_arm_neon; | |
79 | #endif | |
80 | ||
e492db88 MW |
81 | #if CPUFAM_ARM64 |
82 | extern core__functype chacha_core_arm64; | |
83 | #endif | |
84 | ||
e10e6494 MW |
85 | static core__functype *pick_core(void) |
86 | { | |
0f23f75f MW |
87 | #if CPUFAM_X86 || CPUFAM_AMD64 |
88 | DISPATCH_PICK_COND(chacha_core, chacha_core_x86ish_sse2, | |
fac645f7 | 89 | cpu_feature_p(CPUFEAT_X86_SSE2)); |
704d59c8 MW |
90 | #endif |
91 | #if CPUFAM_ARMEL | |
92 | DISPATCH_PICK_COND(chacha_core, chacha_core_arm_neon, | |
93 | cpu_feature_p(CPUFEAT_ARM_NEON)); | |
e492db88 MW |
94 | #endif |
95 | #if CPUFAM_ARM64 | |
96 | DISPATCH_PICK_COND(chacha_core, chacha_core_arm64, 1); | |
e10e6494 | 97 | #endif |
fac645f7 | 98 | DISPATCH_PICK_FALLBACK(chacha_core, simple_core); |
e10e6494 MW |
99 | } |
100 | ||
55d81656 MW |
101 | /* --- @populate@ --- * |
102 | * | |
103 | * Arguments: @chacha_matrix a@ = a matrix to fill in | |
104 | * @const void *key@ = pointer to key material | |
105 | * @size_t ksz@ = size of key | |
106 | * | |
107 | * Returns: --- | |
108 | * | |
109 | * Use: Fills in a ChaCha matrix from the key, setting the | |
110 | * appropriate constants according to the key length. The nonce | |
111 | * and position words are left uninitialized. | |
112 | */ | |
113 | ||
114 | static void populate(chacha_matrix a, const void *key, size_t ksz) | |
115 | { | |
116 | const octet *k = key; | |
117 | ||
118 | KSZ_ASSERT(chacha, ksz); | |
119 | ||
120 | a[ 4] = LOAD32_L(k + 0); | |
121 | a[ 5] = LOAD32_L(k + 4); | |
122 | if (ksz == 10) { | |
123 | a[ 6] = LOAD16_L(k + 8); | |
124 | a[ 7] = 0; | |
125 | } else { | |
126 | a[ 6] = LOAD32_L(k + 8); | |
127 | a[ 7] = LOAD32_L(k + 12); | |
128 | } | |
129 | if (ksz <= 16) { | |
130 | a[ 8] = a[ 4]; | |
131 | a[ 9] = a[ 5]; | |
132 | a[10] = a[ 6]; | |
133 | a[11] = a[ 7]; | |
134 | a[ 0] = CHACHA_A128; | |
135 | a[ 1] = CHACHA_B128; | |
136 | a[ 2] = ksz == 10 ? CHACHA_C80 : CHACHA_C128; | |
137 | a[ 3] = CHACHA_D128; | |
138 | } else { | |
139 | a[ 8] = LOAD32_L(k + 16); | |
140 | a[ 9] = LOAD32_L(k + 20); | |
141 | a[10] = LOAD32_L(k + 24); | |
142 | a[11] = LOAD32_L(k + 28); | |
143 | a[ 0] = CHACHA_A256; | |
144 | a[ 1] = CHACHA_B256; | |
145 | a[ 2] = CHACHA_C256; | |
146 | a[ 3] = CHACHA_D256; | |
147 | } | |
148 | } | |
149 | ||
150 | /*----- ChaCha implementation ---------------------------------------------*/ | |
151 | ||
152 | /* --- @chacha_init@ --- * | |
153 | * | |
154 | * Arguments: @chacha_ctx *ctx@ = context to fill in | |
155 | * @const void *key@ = pointer to key material | |
156 | * @size_t ksz@ = size of key (either 32 or 16) | |
157 | * @const void *nonce@ = initial nonce, or null | |
158 | * | |
159 | * Returns: --- | |
160 | * | |
161 | * Use: Initializes a ChaCha context ready for use. | |
162 | */ | |
163 | ||
164 | void chacha_init(chacha_ctx *ctx, const void *key, size_t ksz, | |
165 | const void *nonce) | |
166 | { | |
167 | static const octet zerononce[CHACHA_NONCESZ]; | |
168 | ||
169 | populate(ctx->a, key, ksz); | |
170 | chacha_setnonce(ctx, nonce ? nonce : zerononce); | |
171 | } | |
172 | ||
1778ca95 | 173 | /* --- @chacha_setnonce{,_ietf}@ --- * |
55d81656 MW |
174 | * |
175 | * Arguments: @chacha_ctx *ctx@ = pointer to context | |
1778ca95 MW |
176 | * @const void *nonce@ = the nonce (@CHACHA_NONCESZ@ or |
177 | * @CHACHA_IETF_NONCESZ@ bytes) | |
55d81656 MW |
178 | * |
179 | * Returns: --- | |
180 | * | |
181 | * Use: Set a new nonce in the context @ctx@, e.g., for processing a | |
182 | * different message. The stream position is reset to zero (see | |
183 | * @chacha_seek@ etc.). | |
184 | */ | |
185 | ||
186 | void chacha_setnonce(chacha_ctx *ctx, const void *nonce) | |
187 | { | |
188 | const octet *n = nonce; | |
189 | ||
190 | ctx->a[14] = LOAD32_L(n + 0); | |
191 | ctx->a[15] = LOAD32_L(n + 4); | |
192 | chacha_seek(ctx, 0); | |
193 | } | |
194 | ||
1778ca95 MW |
195 | void chacha_setnonce_ietf(chacha_ctx *ctx, const void *nonce) |
196 | { | |
197 | const octet *n = nonce; | |
198 | ||
199 | ctx->a[13] = LOAD32_L(n + 0); | |
200 | ctx->a[14] = LOAD32_L(n + 4); | |
201 | ctx->a[15] = LOAD32_L(n + 8); | |
202 | chacha_seek_ietf(ctx, 0); | |
203 | } | |
204 | ||
205 | /* --- @chacha_seek{,u64,_ietf}@ --- * | |
55d81656 MW |
206 | * |
207 | * Arguments: @chacha_ctx *ctx@ = pointer to context | |
1778ca95 | 208 | * @unsigned long i@, @kludge64 i@, @uint32 i@ = new position |
55d81656 MW |
209 | * |
210 | * Returns: --- | |
211 | * | |
212 | * Use: Sets a new stream position, in units of Chacha output | |
213 | * blocks, which are @CHACHA_OUTSZ@ bytes each. Byte | |
214 | * granularity can be achieved by calling @chachaR_encrypt@ | |
215 | * appropriately. | |
216 | */ | |
217 | ||
218 | void chacha_seek(chacha_ctx *ctx, unsigned long i) | |
219 | { kludge64 ii; ASSIGN64(ii, i); chacha_seeku64(ctx, ii); } | |
220 | ||
221 | void chacha_seeku64(chacha_ctx *ctx, kludge64 i) | |
222 | { | |
223 | ctx->a[12] = LO64(i); ctx->a[13] = HI64(i); | |
224 | ctx->bufi = CHACHA_OUTSZ; | |
225 | } | |
226 | ||
1778ca95 MW |
227 | void chacha_seek_ietf(chacha_ctx *ctx, uint32 i) |
228 | { ctx->a[12] = i; } | |
229 | ||
230 | /* --- @chacha_tell{,u64,_ietf}@ --- * | |
55d81656 MW |
231 | * |
232 | * Arguments: @chacha_ctx *ctx@ = pointer to context | |
233 | * | |
234 | * Returns: The current position in the output stream, in blocks, | |
235 | * rounding upwards. | |
236 | */ | |
237 | ||
238 | unsigned long chacha_tell(chacha_ctx *ctx) | |
239 | { kludge64 i = chacha_tellu64(ctx); return (GET64(unsigned long, i)); } | |
240 | ||
241 | kludge64 chacha_tellu64(chacha_ctx *ctx) | |
d0c288ad | 242 | { kludge64 i; SET64(i, ctx->a[13], ctx->a[12]); return (i); } |
55d81656 | 243 | |
1778ca95 MW |
244 | uint32 chacha_tell_ietf(chacha_ctx *ctx) |
245 | { return (ctx->a[12]); } | |
246 | ||
7c68d3eb | 247 | /* --- @chacha{20,12,8}_encrypt@ --- * |
55d81656 MW |
248 | * |
249 | * Arguments: @chacha_ctx *ctx@ = pointer to context | |
250 | * @const void *src@ = source buffer (or null) | |
251 | * @void *dest@ = destination buffer (or null) | |
252 | * @size_t sz@ = size of the buffers | |
253 | * | |
254 | * Returns: --- | |
255 | * | |
256 | * Use: Encrypts or decrypts @sz@ bytes of data from @src@ to @dest@. | |
257 | * ChaCha works by XORing plaintext with a keystream, so | |
258 | * encryption and decryption are the same operation. If @dest@ | |
259 | * is null then ignore @src@ and skip @sz@ bytes of the | |
260 | * keystream. If @src@ is null, then just write the keystream | |
261 | * to @dest@. | |
262 | */ | |
263 | ||
264 | #define CHACHA_ENCRYPT(r, ctx, src, dest, sz) \ | |
265 | chacha##r##_encrypt(ctx, src, dest, sz) | |
266 | #define DEFENCRYPT(r) \ | |
267 | void CHACHA_ENCRYPT(r, chacha_ctx *ctx, const void *src, \ | |
268 | void *dest, size_t sz) \ | |
269 | { \ | |
270 | chacha_matrix b; \ | |
271 | const octet *s = src; \ | |
272 | octet *d = dest; \ | |
273 | size_t n; \ | |
274 | kludge64 pos, delta; \ | |
275 | \ | |
276 | SALSA20_OUTBUF(ctx, d, s, sz); \ | |
277 | if (!sz) return; \ | |
278 | \ | |
279 | if (!dest) { \ | |
280 | n = sz/CHACHA_OUTSZ; \ | |
281 | pos = chacha_tellu64(ctx); \ | |
282 | ASSIGN64(delta, n); \ | |
283 | ADD64(pos, pos, delta); \ | |
284 | chacha_seeku64(ctx, pos); \ | |
285 | sz = sz%CHACHA_OUTSZ; \ | |
286 | } else if (!src) { \ | |
287 | while (sz >= CHACHA_OUTSZ) { \ | |
288 | core(r, ctx->a, b); \ | |
289 | CHACHA_STEP(ctx->a); \ | |
290 | SALSA20_GENFULL(b, d); \ | |
291 | sz -= CHACHA_OUTSZ; \ | |
292 | } \ | |
293 | } else { \ | |
294 | while (sz >= CHACHA_OUTSZ) { \ | |
295 | core(r, ctx->a, b); \ | |
296 | CHACHA_STEP(ctx->a); \ | |
297 | SALSA20_MIXFULL(b, d, s); \ | |
298 | sz -= CHACHA_OUTSZ; \ | |
299 | } \ | |
300 | } \ | |
301 | \ | |
302 | if (sz) { \ | |
303 | core(r, ctx->a, b); \ | |
304 | CHACHA_STEP(ctx->a); \ | |
305 | SALSA20_PREPBUF(ctx, b); \ | |
306 | SALSA20_OUTBUF(ctx, d, s, sz); \ | |
307 | assert(!sz); \ | |
308 | } \ | |
309 | } | |
310 | CHACHA_VARS(DEFENCRYPT) | |
311 | ||
312 | /*----- HChaCha implementation --------------------------------------------*/ | |
313 | ||
314 | #define HCHACHA_RAW(r, ctx, src, dest) hchacha##r##_raw(ctx, src, dest) | |
315 | #define HCHACHA_PRF(r, ctx, src, dest) hchacha##r##_prf(ctx, src, dest) | |
316 | ||
317 | /* --- @hchacha{20,12,8}_prf@ --- * | |
318 | * | |
319 | * Arguments: @chacha_ctx *ctx@ = pointer to context | |
320 | * @const void *src@ = the input (@HCHACHA_INSZ@ bytes) | |
321 | * @void *dest@ = the output (@HCHACHA_OUTSZ@ bytes) | |
322 | * | |
323 | * Returns: --- | |
324 | * | |
325 | * Use: Apply the HChacha/r pseudorandom function to @src@, writing | |
326 | * the result to @out@. | |
327 | */ | |
328 | ||
329 | #define DEFHCHACHA(r) \ | |
330 | static void HCHACHA_RAW(r, chacha_matrix k, \ | |
331 | const uint32 *src, uint32 *dest) \ | |
332 | { \ | |
333 | chacha_matrix a; \ | |
334 | int i; \ | |
335 | \ | |
336 | /* --- HChaCha, computed from full ChaCha --- * \ | |
337 | * \ | |
338 | * The security proof makes use of the fact that HChaCha (i.e., \ | |
339 | * without the final feedforward step) can be computed from full \ | |
340 | * ChaCha using only knowledge of the non-secret input. I don't \ | |
341 | * want to compromise the performance of the main function by \ | |
342 | * making the feedforward step separate, but this operation is less \ | |
343 | * speed critical, so we do it the harder way. \ | |
344 | */ \ | |
345 | \ | |
346 | for (i = 0; i < 4; i++) k[12 + i] = src[i]; \ | |
347 | core(r, k, a); \ | |
348 | for (i = 0; i < 8; i++) dest[i] = a[(i + 4)^4] - k[(i + 4)^4]; \ | |
349 | } \ | |
350 | \ | |
351 | void HCHACHA_PRF(r, chacha_ctx *ctx, const void *src, void *dest) \ | |
352 | { \ | |
353 | const octet *s = src; \ | |
354 | octet *d = dest; \ | |
355 | uint32 in[4], out[8]; \ | |
356 | int i; \ | |
357 | \ | |
358 | for (i = 0; i < 4; i++) in[i] = LOAD32_L(s + 4*i); \ | |
359 | HCHACHA_RAW(r, ctx->a, in, out); \ | |
360 | for (i = 0; i < 8; i++) STORE32_L(d + 4*i, out[i]); \ | |
361 | } | |
362 | CHACHA_VARS(DEFHCHACHA) | |
363 | ||
364 | /*----- XChaCha implementation -------------------------------------------*/ | |
365 | ||
366 | /* --- Some convenient macros for naming functions --- * | |
367 | * | |
368 | * Because the crypto core is involved in XChaCha/r's per-nonce setup, we | |
369 | * need to take an interest in the number of rounds in most of the various | |
370 | * functions, and it will probably help if we distinguish the context | |
371 | * structures for the various versions. | |
372 | */ | |
373 | ||
374 | #define XCHACHA_CTX(r) xchacha##r##_ctx | |
375 | #define XCHACHA_INIT(r, ctx, k, ksz, n) xchacha##r##_init(ctx, k, ksz, n) | |
376 | #define XCHACHA_SETNONCE(r, ctx, n) xchacha##r##_setnonce(ctx, n) | |
377 | #define XCHACHA_SEEK(r, ctx, i) xchacha##r##_seek(ctx, i) | |
378 | #define XCHACHA_SEEKU64(r, ctx, i) xchacha##r##_seeku64(ctx, i) | |
379 | #define XCHACHA_TELL(r, ctx) xchacha##r##_tell(ctx) | |
380 | #define XCHACHA_TELLU64(r, ctx) xchacha##r##_tellu64(ctx) | |
381 | #define XCHACHA_ENCRYPT(r, ctx, src, dest, sz) \ | |
382 | xchacha##r##_encrypt(ctx, src, dest, sz) | |
383 | ||
384 | /* --- @xchacha{20,12,8}_init@ --- * | |
385 | * | |
386 | * Arguments: @xchachaR_ctx *ctx@ = the context to fill in | |
387 | * @const void *key@ = pointer to key material | |
388 | * @size_t ksz@ = size of key (either 32 or 16) | |
389 | * @const void *nonce@ = initial nonce, or null | |
390 | * | |
391 | * Returns: --- | |
392 | * | |
393 | * Use: Initializes an XChaCha/r context ready for use. | |
394 | * | |
395 | * There is a different function for each number of rounds, | |
396 | * unlike for plain ChaCha. | |
397 | */ | |
398 | ||
399 | #define DEFXINIT(r) \ | |
400 | void XCHACHA_INIT(r, XCHACHA_CTX(r) *ctx, \ | |
401 | const void *key, size_t ksz, const void *nonce) \ | |
402 | { \ | |
403 | static const octet zerononce[XCHACHA_NONCESZ]; \ | |
404 | \ | |
405 | populate(ctx->k, key, ksz); \ | |
406 | ctx->s.a[ 0] = CHACHA_A256; \ | |
407 | ctx->s.a[ 1] = CHACHA_B256; \ | |
408 | ctx->s.a[ 2] = CHACHA_C256; \ | |
409 | ctx->s.a[ 3] = CHACHA_D256; \ | |
410 | XCHACHA_SETNONCE(r, ctx, nonce ? nonce : zerononce); \ | |
411 | } | |
412 | CHACHA_VARS(DEFXINIT) | |
413 | ||
414 | /* --- @xchacha{20,12,8}_setnonce@ --- * | |
415 | * | |
416 | * Arguments: @xchachaR_ctx *ctx@ = pointer to context | |
417 | * @const void *nonce@ = the nonce (@XCHACHA_NONCESZ@ bytes) | |
418 | * | |
419 | * Returns: --- | |
420 | * | |
421 | * Use: Set a new nonce in the context @ctx@, e.g., for processing a | |
422 | * different message. The stream position is reset to zero (see | |
423 | * @chacha_seek@ etc.). | |
424 | * | |
425 | * There is a different function for each number of rounds, | |
426 | * unlike for plain ChaCha. | |
427 | */ | |
428 | ||
429 | #define DEFXNONCE(r) \ | |
430 | void XCHACHA_SETNONCE(r, XCHACHA_CTX(r) *ctx, const void *nonce) \ | |
431 | { \ | |
432 | const octet *n = nonce; \ | |
433 | uint32 in[4]; \ | |
434 | int i; \ | |
435 | \ | |
436 | for (i = 0; i < 4; i++) in[i] = LOAD32_L(n + 4*i); \ | |
437 | HCHACHA_RAW(r, ctx->k, in, ctx->s.a + 4); \ | |
438 | chacha_setnonce(&ctx->s, n + 16); \ | |
439 | } | |
440 | CHACHA_VARS(DEFXNONCE) | |
441 | ||
d022e630 | 442 | /* --- @xchacha{20,12,8}_seek{,u64}@ --- * |
55d81656 MW |
443 | * |
444 | * Arguments: @xchachaR_ctx *ctx@ = pointer to context | |
445 | * @unsigned long i@, @kludge64 i@ = new position to set | |
446 | * | |
447 | * Returns: --- | |
448 | * | |
449 | * Use: Sets a new stream position, in units of ChaCha output | |
450 | * blocks, which are @XCHACHA_OUTSZ@ bytes each. Byte | |
451 | * granularity can be achieved by calling @xchachaR_encrypt@ | |
452 | * appropriately. | |
453 | * | |
454 | * There is a different function for each number of rounds, | |
455 | * unlike for plain ChaCha, because the context structures are | |
456 | * different. | |
457 | */ | |
458 | ||
d022e630 | 459 | /* --- @xchacha{20,12,8}_tell{,u64}@ --- * |
55d81656 MW |
460 | * |
461 | * Arguments: @chacha_ctx *ctx@ = pointer to context | |
462 | * | |
463 | * Returns: The current position in the output stream, in blocks, | |
464 | * rounding upwards. | |
465 | * | |
466 | * There is a different function for each number of rounds, | |
467 | * unlike for plain ChaCha, because the context structures are | |
468 | * different. | |
469 | */ | |
470 | ||
7c68d3eb | 471 | /* --- @xchacha{20,12,8}_encrypt@ --- * |
55d81656 MW |
472 | * |
473 | * Arguments: @xchachaR_ctx *ctx@ = pointer to context | |
474 | * @const void *src@ = source buffer (or null) | |
475 | * @void *dest@ = destination buffer (or null) | |
476 | * @size_t sz@ = size of the buffers | |
477 | * | |
478 | * Returns: --- | |
479 | * | |
480 | * Use: Encrypts or decrypts @sz@ bytes of data from @src@ to @dest@. | |
481 | * XChaCha works by XORing plaintext with a keystream, so | |
482 | * encryption and decryption are the same operation. If @dest@ | |
483 | * is null then ignore @src@ and skip @sz@ bytes of the | |
484 | * keystream. If @src@ is null, then just write the keystream | |
485 | * to @dest@. | |
486 | */ | |
487 | ||
488 | #define DEFXPASSTHRU(r) \ | |
489 | void XCHACHA_SEEK(r, XCHACHA_CTX(r) *ctx, unsigned long i) \ | |
490 | { chacha_seek(&ctx->s, i); } \ | |
491 | void XCHACHA_SEEKU64(r, XCHACHA_CTX(r) *ctx, kludge64 i) \ | |
492 | { chacha_seeku64(&ctx->s, i); } \ | |
493 | unsigned long XCHACHA_TELL(r, XCHACHA_CTX(r) *ctx) \ | |
494 | { return chacha_tell(&ctx->s); } \ | |
495 | kludge64 XCHACHA_TELLU64(r, XCHACHA_CTX(r) *ctx) \ | |
496 | { return chacha_tellu64(&ctx->s); } \ | |
497 | void XCHACHA_ENCRYPT(r, XCHACHA_CTX(r) *ctx, \ | |
498 | const void *src, void *dest, size_t sz) \ | |
499 | { CHACHA_ENCRYPT(r, &ctx->s, src, dest, sz); } | |
500 | CHACHA_VARS(DEFXPASSTHRU) | |
501 | ||
502 | /*----- Generic cipher interface ------------------------------------------*/ | |
503 | ||
504 | typedef struct gctx { gcipher c; chacha_ctx ctx; } gctx; | |
505 | ||
506 | static void gsetiv(gcipher *c, const void *iv) | |
507 | { gctx *g = (gctx *)c; chacha_setnonce(&g->ctx, iv); } | |
508 | ||
1778ca95 MW |
509 | static void gsetiv_ietf(gcipher *c, const void *iv) |
510 | { gctx *g = (gctx *)c; chacha_setnonce_ietf(&g->ctx, iv); } | |
511 | ||
55d81656 MW |
512 | static void gdestroy(gcipher *c) |
513 | { gctx *g = (gctx *)c; BURN(*g); S_DESTROY(g); } | |
514 | ||
d9ce319f MW |
515 | static gcipher *ginit(const void *k, size_t sz, const gcipher_ops *ops) |
516 | { | |
517 | gctx *g = S_CREATE(gctx); | |
518 | g->c.ops = ops; | |
519 | chacha_init(&g->ctx, k, sz, 0); | |
520 | return (&g->c); | |
521 | } | |
522 | ||
55d81656 MW |
523 | #define DEFGCIPHER(r) \ |
524 | \ | |
1778ca95 | 525 | static const gcipher_ops gops_##r, gops_##r##_ietf; \ |
55d81656 MW |
526 | \ |
527 | static gcipher *ginit_##r(const void *k, size_t sz) \ | |
d9ce319f | 528 | { return (ginit(k, sz, &gops_##r)); } \ |
55d81656 | 529 | \ |
1778ca95 MW |
530 | static gcipher *ginit_##r##_ietf(const void *k, size_t sz) \ |
531 | { return (ginit(k, sz, &gops_##r##_ietf)); } \ | |
532 | \ | |
55d81656 MW |
533 | static void gencrypt_##r(gcipher *c, const void *s, \ |
534 | void *t, size_t sz) \ | |
535 | { gctx *g = (gctx *)c; CHACHA_ENCRYPT(r, &g->ctx, s, t, sz); } \ | |
536 | \ | |
537 | static const gcipher_ops gops_##r = { \ | |
538 | &chacha##r, \ | |
539 | gencrypt_##r, gencrypt_##r, gdestroy, gsetiv, 0 \ | |
540 | }; \ | |
541 | \ | |
1778ca95 MW |
542 | static const gcipher_ops gops_##r##_ietf = { \ |
543 | &chacha##r##_ietf, \ | |
544 | gencrypt_##r, gencrypt_##r, gdestroy, gsetiv_ietf, 0 \ | |
545 | }; \ | |
546 | \ | |
55d81656 MW |
547 | const gccipher chacha##r = { \ |
548 | "chacha" #r, chacha_keysz, \ | |
549 | CHACHA_NONCESZ, ginit_##r \ | |
1778ca95 MW |
550 | }; \ |
551 | \ | |
552 | const gccipher chacha##r##_ietf = { \ | |
553 | "chacha" #r "-ietf", chacha_keysz, \ | |
554 | CHACHA_IETF_NONCESZ, ginit_##r##_ietf \ | |
55d81656 MW |
555 | }; |
556 | ||
557 | CHACHA_VARS(DEFGCIPHER) | |
558 | ||
559 | #define DEFGXCIPHER(r) \ | |
560 | \ | |
561 | typedef struct { gcipher c; XCHACHA_CTX(r) ctx; } gxctx_##r; \ | |
562 | \ | |
563 | static void gxsetiv_##r(gcipher *c, const void *iv) \ | |
564 | { gxctx_##r *g = (gxctx_##r *)c; XCHACHA_SETNONCE(r, &g->ctx, iv); } \ | |
565 | \ | |
566 | static void gxdestroy_##r(gcipher *c) \ | |
567 | { gxctx_##r *g = (gxctx_##r *)c; BURN(*g); S_DESTROY(g); } \ | |
568 | \ | |
569 | static const gcipher_ops gxops_##r; \ | |
570 | \ | |
571 | static gcipher *gxinit_##r(const void *k, size_t sz) \ | |
572 | { \ | |
573 | gxctx_##r *g = S_CREATE(gxctx_##r); \ | |
574 | g->c.ops = &gxops_##r; \ | |
575 | XCHACHA_INIT(r, &g->ctx, k, sz, 0); \ | |
576 | return (&g->c); \ | |
577 | } \ | |
578 | \ | |
579 | static void gxencrypt_##r(gcipher *c, const void *s, \ | |
580 | void *t, size_t sz) \ | |
581 | { \ | |
582 | gxctx_##r *g = (gxctx_##r *)c; \ | |
583 | XCHACHA_ENCRYPT(r, &g->ctx, s, t, sz); \ | |
584 | } \ | |
585 | \ | |
586 | static const gcipher_ops gxops_##r = { \ | |
587 | &xchacha##r, \ | |
588 | gxencrypt_##r, gxencrypt_##r, gxdestroy_##r, gxsetiv_##r, 0 \ | |
589 | }; \ | |
590 | \ | |
591 | const gccipher xchacha##r = { \ | |
592 | "xchacha" #r, chacha_keysz, \ | |
dc752276 | 593 | XCHACHA_NONCESZ, gxinit_##r \ |
55d81656 MW |
594 | }; |
595 | ||
596 | CHACHA_VARS(DEFGXCIPHER) | |
597 | ||
598 | /*----- Generic random number generator interface -------------------------*/ | |
599 | ||
600 | typedef struct grops { | |
601 | size_t noncesz; | |
602 | void (*seek)(void *, kludge64); | |
603 | kludge64 (*tell)(void *); | |
604 | void (*setnonce)(void *, const void *); | |
605 | void (*generate)(void *, void *, size_t); | |
606 | } grops; | |
607 | ||
608 | typedef struct grbasectx { | |
609 | grand r; | |
610 | const grops *ops; | |
611 | } grbasectx; | |
612 | ||
613 | static int grmisc(grand *r, unsigned op, ...) | |
614 | { | |
615 | octet buf[XCHACHA_NONCESZ]; | |
616 | grbasectx *g = (grbasectx *)r; | |
617 | grand *rr; | |
618 | const octet *p; | |
619 | size_t sz; | |
620 | uint32 i; | |
621 | unsigned long ul; | |
622 | kludge64 pos; | |
623 | va_list ap; | |
624 | int rc = 0; | |
625 | ||
626 | va_start(ap, op); | |
627 | ||
628 | switch (op) { | |
629 | case GRAND_CHECK: | |
630 | switch (va_arg(ap, unsigned)) { | |
631 | case GRAND_CHECK: | |
632 | case GRAND_SEEDINT: | |
633 | case GRAND_SEEDUINT32: | |
634 | case GRAND_SEEDBLOCK: | |
635 | case GRAND_SEEDRAND: | |
636 | case CHACHA_SEEK: | |
637 | case CHACHA_SEEKU64: | |
638 | case CHACHA_TELL: | |
639 | case CHACHA_TELLU64: | |
640 | rc = 1; | |
641 | break; | |
642 | default: | |
643 | rc = 0; | |
644 | break; | |
645 | } | |
646 | break; | |
647 | ||
648 | case GRAND_SEEDINT: | |
649 | i = va_arg(ap, unsigned); STORE32_L(buf, i); | |
650 | memset(buf + 4, 0, g->ops->noncesz - 4); | |
651 | g->ops->setnonce(g, buf); | |
652 | break; | |
653 | case GRAND_SEEDUINT32: | |
654 | i = va_arg(ap, uint32); STORE32_L(buf, i); | |
655 | memset(buf + 4, 0, g->ops->noncesz - 4); | |
656 | g->ops->setnonce(g, buf); | |
657 | break; | |
658 | case GRAND_SEEDBLOCK: | |
659 | p = va_arg(ap, const void *); | |
660 | sz = va_arg(ap, size_t); | |
661 | if (sz < g->ops->noncesz) { | |
662 | memcpy(buf, p, sz); | |
663 | memset(buf + sz, 0, g->ops->noncesz - sz); | |
664 | p = buf; | |
665 | } | |
666 | g->ops->setnonce(g, p); | |
667 | break; | |
668 | case GRAND_SEEDRAND: | |
669 | rr = va_arg(ap, grand *); | |
670 | rr->ops->fill(rr, buf, g->ops->noncesz); | |
671 | g->ops->setnonce(g, buf); | |
672 | break; | |
673 | case CHACHA_SEEK: | |
674 | ul = va_arg(ap, unsigned long); ASSIGN64(pos, ul); | |
675 | g->ops->seek(g, pos); | |
676 | break; | |
677 | case CHACHA_SEEKU64: | |
678 | pos = va_arg(ap, kludge64); | |
679 | g->ops->seek(g, pos); | |
680 | break; | |
681 | case CHACHA_TELL: | |
682 | pos = g->ops->tell(g); | |
683 | *va_arg(ap, unsigned long *) = GET64(unsigned long, pos); | |
684 | break; | |
685 | case CHACHA_TELLU64: | |
686 | *va_arg(ap, kludge64 *) = g->ops->tell(g); | |
687 | break; | |
688 | default: | |
689 | GRAND_BADOP; | |
690 | break; | |
691 | } | |
692 | ||
693 | return (rc); | |
694 | } | |
695 | ||
696 | static octet grbyte(grand *r) | |
697 | { | |
698 | grbasectx *g = (grbasectx *)r; | |
699 | octet o; | |
700 | g->ops->generate(g, &o, 1); | |
701 | return (o); | |
702 | } | |
703 | ||
704 | static uint32 grword(grand *r) | |
705 | { | |
706 | grbasectx *g = (grbasectx *)r; | |
707 | octet b[4]; | |
708 | g->ops->generate(g, b, sizeof(b)); | |
709 | return (LOAD32_L(b)); | |
710 | } | |
711 | ||
712 | static void grfill(grand *r, void *p, size_t sz) | |
713 | { | |
714 | grbasectx *g = (grbasectx *)r; | |
715 | g->ops->generate(r, p, sz); | |
716 | } | |
717 | ||
718 | typedef struct grctx { | |
719 | grbasectx r; | |
720 | chacha_ctx ctx; | |
721 | } grctx; | |
722 | ||
723 | static void gr_seek(void *r, kludge64 pos) | |
724 | { grctx *g = r; chacha_seeku64(&g->ctx, pos); } | |
725 | ||
1778ca95 MW |
726 | static void gr_seek_ietf(void *r, kludge64 pos) |
727 | { grctx *g = r; chacha_seek_ietf(&g->ctx, LO64(pos)); } | |
728 | ||
55d81656 MW |
729 | static kludge64 gr_tell(void *r) |
730 | { grctx *g = r; return (chacha_tellu64(&g->ctx)); } | |
731 | ||
1778ca95 MW |
732 | static kludge64 gr_tell_ietf(void *r) |
733 | { | |
734 | grctx *g = r; | |
735 | kludge64 pos; | |
736 | ||
737 | SET64(pos, 0, chacha_tell_ietf(&g->ctx)); | |
738 | return (pos); | |
739 | } | |
740 | ||
55d81656 MW |
741 | static void gr_setnonce(void *r, const void *n) |
742 | { grctx *g = r; chacha_setnonce(&g->ctx, n); } | |
743 | ||
1778ca95 MW |
744 | static void gr_setnonce_ietf(void *r, const void *n) |
745 | { grctx *g = r; chacha_setnonce_ietf(&g->ctx, n); } | |
746 | ||
55d81656 MW |
747 | static void grdestroy(grand *r) |
748 | { grctx *g = (grctx *)r; BURN(*g); S_DESTROY(g); } | |
749 | ||
d9ce319f MW |
750 | static grand *grinit(const void *k, size_t ksz, const void *n, |
751 | const grand_ops *ops, const grops *myops) | |
752 | { | |
753 | grctx *g = S_CREATE(grctx); | |
754 | g->r.r.ops = ops; | |
755 | g->r.ops = myops; | |
756 | chacha_init(&g->ctx, k, ksz, 0); | |
c2603631 | 757 | if (n) myops->setnonce(g, n); |
d9ce319f MW |
758 | return (&g->r.r); |
759 | } | |
760 | ||
55d81656 MW |
761 | #define DEFGRAND(rr) \ |
762 | \ | |
763 | static void gr_generate_##rr(void *r, void *b, size_t sz) \ | |
764 | { grctx *g = r; CHACHA_ENCRYPT(rr, &g->ctx, 0, b, sz); } \ | |
765 | \ | |
766 | static const grops grops_##rr = \ | |
767 | { CHACHA_NONCESZ, gr_seek, gr_tell, \ | |
768 | gr_setnonce, gr_generate_##rr }; \ | |
769 | \ | |
1778ca95 MW |
770 | static const grops grops_##rr##_ietf = \ |
771 | { CHACHA_IETF_NONCESZ, gr_seek_ietf, gr_tell_ietf, \ | |
772 | gr_setnonce_ietf, gr_generate_##rr }; \ | |
773 | \ | |
55d81656 MW |
774 | static const grand_ops grops_rand_##rr = { \ |
775 | "chacha" #rr, GRAND_CRYPTO, 0, \ | |
776 | grmisc, grdestroy, grword, \ | |
44ff6c11 | 777 | grbyte, grword, grand_defaultrange, grfill \ |
55d81656 MW |
778 | }; \ |
779 | \ | |
1778ca95 MW |
780 | static const grand_ops grops_rand_##rr##_ietf = { \ |
781 | "chacha" #rr "-ietf", GRAND_CRYPTO, 0, \ | |
782 | grmisc, grdestroy, grword, \ | |
783 | grbyte, grword, grand_defaultrange, grfill \ | |
784 | }; \ | |
785 | \ | |
55d81656 | 786 | grand *chacha##rr##_rand(const void *k, size_t ksz, const void *n) \ |
1778ca95 MW |
787 | { return (grinit(k, ksz, n, &grops_rand_##rr, &grops_##rr)); } \ |
788 | \ | |
789 | grand *chacha##rr##_ietf_rand(const void *k, size_t ksz, \ | |
790 | const void *n) \ | |
791 | { \ | |
792 | return (grinit(k, ksz, n, \ | |
793 | &grops_rand_##rr##_ietf, \ | |
794 | &grops_##rr##_ietf)); \ | |
795 | } | |
796 | ||
55d81656 MW |
797 | CHACHA_VARS(DEFGRAND) |
798 | ||
799 | #define DEFXGRAND(rr) \ | |
800 | \ | |
801 | typedef struct grxctx_##rr { \ | |
802 | grbasectx r; \ | |
803 | XCHACHA_CTX(rr) ctx; \ | |
804 | } grxctx_##rr; \ | |
805 | \ | |
806 | static void grx_seek_##rr(void *r, kludge64 pos) \ | |
807 | { grxctx_##rr *g = r; XCHACHA_SEEKU64(rr, &g->ctx, pos); } \ | |
808 | \ | |
809 | static kludge64 grx_tell_##rr(void *r) \ | |
810 | { grxctx_##rr *g = r; return (XCHACHA_TELLU64(rr, &g->ctx)); } \ | |
811 | \ | |
812 | static void grx_setnonce_##rr(void *r, const void *n) \ | |
813 | { grxctx_##rr *g = r; XCHACHA_SETNONCE(rr, &g->ctx, n); } \ | |
814 | \ | |
815 | static void grxdestroy_##rr(grand *r) \ | |
816 | { grxctx_##rr *g = (grxctx_##rr *)r; BURN(*g); S_DESTROY(g); } \ | |
817 | \ | |
818 | static void grx_generate_##rr(void *r, void *b, size_t sz) \ | |
819 | { grxctx_##rr *g = r; XCHACHA_ENCRYPT(rr, &g->ctx, 0, b, sz); } \ | |
820 | \ | |
821 | static const grops grxops_##rr = \ | |
822 | { XCHACHA_NONCESZ, grx_seek_##rr, grx_tell_##rr, \ | |
823 | grx_setnonce_##rr, grx_generate_##rr }; \ | |
824 | \ | |
825 | static const grand_ops grxops_rand_##rr = { \ | |
826 | "xchacha" #rr, GRAND_CRYPTO, 0, \ | |
827 | grmisc, grxdestroy_##rr, grword, \ | |
44ff6c11 | 828 | grbyte, grword, grand_defaultrange, grfill \ |
55d81656 MW |
829 | }; \ |
830 | \ | |
831 | grand *xchacha##rr##_rand(const void *k, size_t ksz, const void *n) \ | |
832 | { \ | |
f9fe9910 | 833 | grxctx_##rr *g = S_CREATE(grxctx_##rr); \ |
55d81656 MW |
834 | g->r.r.ops = &grxops_rand_##rr; \ |
835 | g->r.ops = &grxops_##rr; \ | |
836 | XCHACHA_INIT(rr, &g->ctx, k, ksz, n); \ | |
837 | return (&g->r.r); \ | |
838 | } | |
839 | CHACHA_VARS(DEFXGRAND) | |
840 | ||
841 | /*----- Test rig ----------------------------------------------------------*/ | |
842 | ||
843 | #ifdef TEST_RIG | |
844 | ||
845 | #include <stdio.h> | |
846 | #include <string.h> | |
847 | ||
848 | #include <mLib/quis.h> | |
849 | #include <mLib/testrig.h> | |
850 | ||
851 | #define DEFVCORE(r) \ | |
852 | static int v_core_##r(dstr *v) \ | |
853 | { \ | |
854 | chacha_matrix a, b; \ | |
855 | dstr d = DSTR_INIT; \ | |
856 | int i, n; \ | |
857 | int ok = 1; \ | |
858 | \ | |
859 | DENSURE(&d, CHACHA_OUTSZ); d.len = CHACHA_OUTSZ; \ | |
860 | n = *(int *)v[0].buf; \ | |
861 | for (i = 0; i < CHACHA_OUTSZ/4; i++) \ | |
862 | a[i] = LOAD32_L(v[1].buf + 4*i); \ | |
863 | for (i = 0; i < n; i++) { \ | |
864 | core(r, a, b); \ | |
865 | memcpy(a, b, sizeof(a)); \ | |
866 | } \ | |
867 | for (i = 0; i < CHACHA_OUTSZ/4; i++) STORE32_L(d.buf + 4*i, a[i]); \ | |
868 | \ | |
869 | if (d.len != v[2].len || memcmp(d.buf, v[2].buf, v[2].len) != 0) { \ | |
870 | ok = 0; \ | |
871 | printf("\nfail core:" \ | |
872 | "\n\titerations = %d" \ | |
873 | "\n\tin = ", n); \ | |
874 | type_hex.dump(&v[1], stdout); \ | |
875 | printf("\n\texpected = "); \ | |
876 | type_hex.dump(&v[2], stdout); \ | |
877 | printf("\n\tcalculated = "); \ | |
878 | type_hex.dump(&d, stdout); \ | |
879 | putchar('\n'); \ | |
880 | } \ | |
881 | \ | |
882 | dstr_destroy(&d); \ | |
883 | return (ok); \ | |
884 | } | |
885 | CHACHA_VARS(DEFVCORE) | |
886 | ||
887 | #define CHACHA_CTX(r) chacha_ctx | |
e6912e44 MW |
888 | |
889 | #define CHACHA_TESTSETUP(r, ctx, k, ksz, n, nsz, p, psz) do { \ | |
890 | kludge64 pos64; \ | |
891 | chacha_init(ctx, k, ksz, 0); \ | |
892 | if (nsz == 8) chacha_setnonce(ctx, n); \ | |
1778ca95 | 893 | else if (nsz == 12) chacha_setnonce_ietf(ctx, n); \ |
e6912e44 | 894 | if (psz == 8) { LOAD64_(pos64, p); chacha_seeku64(ctx, pos64); } \ |
1778ca95 | 895 | else if (psz == 4) chacha_seek_ietf(ctx, LOAD32(p)); \ |
e6912e44 MW |
896 | } while (0) |
897 | ||
898 | #define XCHACHA_TESTSETUP(r, ctx, k, ksz, n, nsz, p, psz) do { \ | |
899 | kludge64 pos64; \ | |
900 | XCHACHA_INIT(r, ctx, k, ksz, 0); \ | |
901 | if (nsz == 24) XCHACHA_SETNONCE(r, ctx, n); \ | |
902 | if (psz == 8) { LOAD64_(pos64, p); xchacha##r##_seeku64(ctx, pos64); } \ | |
903 | } while (0) | |
55d81656 MW |
904 | |
905 | #define DEFxVENC(base, BASE, r) \ | |
906 | static int v_encrypt_##base##_##r(dstr *v) \ | |
907 | { \ | |
908 | BASE##_CTX(r) ctx; \ | |
909 | dstr d = DSTR_INIT; \ | |
55d81656 MW |
910 | const octet *p, *p0; \ |
911 | octet *q; \ | |
912 | size_t sz, sz0, step; \ | |
913 | unsigned long skip; \ | |
914 | int ok = 1; \ | |
915 | \ | |
916 | if (v[4].len) { p0 = (const octet *)v[4].buf; sz0 = v[4].len; } \ | |
917 | else { p0 = 0; sz0 = v[5].len; } \ | |
918 | DENSURE(&d, sz0); d.len = sz0; \ | |
919 | skip = *(unsigned long *)v[3].buf; \ | |
920 | \ | |
921 | step = 0; \ | |
922 | while (step < sz0 + skip) { \ | |
923 | step = step ? 3*step + 4 : 1; \ | |
924 | if (step > sz0 + skip) step = sz0 + skip; \ | |
e6912e44 MW |
925 | BASE##_TESTSETUP(r, &ctx, v[0].buf, v[0].len, \ |
926 | v[1].buf, v[1].len, v[2].buf, v[2].len); \ | |
55d81656 MW |
927 | \ |
928 | for (sz = skip; sz >= step; sz -= step) \ | |
929 | BASE##_ENCRYPT(r, &ctx, 0, 0, step); \ | |
930 | if (sz) BASE##_ENCRYPT(r, &ctx, 0, 0, sz); \ | |
931 | for (p = p0, q = (octet *)d.buf, sz = sz0; \ | |
932 | sz >= step; \ | |
933 | sz -= step, q += step) { \ | |
934 | BASE##_ENCRYPT(r, &ctx, p, q, step); \ | |
935 | if (p) p += step; \ | |
936 | } \ | |
937 | if (sz) BASE##_ENCRYPT(r, &ctx, p, q, sz); \ | |
938 | \ | |
939 | if (d.len != v[5].len || memcmp(d.buf, v[5].buf, v[5].len) != 0) { \ | |
940 | ok = 0; \ | |
941 | printf("\nfail encrypt:" \ | |
942 | "\n\tstep = %lu" \ | |
943 | "\n\tkey = ", (unsigned long)step); \ | |
944 | type_hex.dump(&v[0], stdout); \ | |
945 | printf("\n\tnonce = "); \ | |
946 | type_hex.dump(&v[1], stdout); \ | |
947 | printf("\n\tposition = "); \ | |
948 | type_hex.dump(&v[2], stdout); \ | |
949 | printf("\n\tskip = %lu", skip); \ | |
950 | printf("\n\tmessage = "); \ | |
951 | type_hex.dump(&v[4], stdout); \ | |
952 | printf("\n\texpected = "); \ | |
953 | type_hex.dump(&v[5], stdout); \ | |
954 | printf("\n\tcalculated = "); \ | |
955 | type_hex.dump(&d, stdout); \ | |
956 | putchar('\n'); \ | |
957 | } \ | |
958 | } \ | |
959 | \ | |
960 | dstr_destroy(&d); \ | |
961 | return (ok); \ | |
962 | } | |
963 | #define DEFVENC(r) DEFxVENC(chacha, CHACHA, r) | |
964 | #define DEFXVENC(r) DEFxVENC(xchacha, XCHACHA, r) | |
965 | CHACHA_VARS(DEFVENC) | |
966 | CHACHA_VARS(DEFXVENC) | |
967 | ||
968 | static test_chunk defs[] = { | |
969 | #define DEFxTAB(base, r) \ | |
970 | { #base #r, v_encrypt_##base##_##r, \ | |
971 | { &type_hex, &type_hex, &type_hex, &type_ulong, \ | |
972 | &type_hex, &type_hex, 0 } }, | |
973 | #define DEFTAB(r) \ | |
974 | { "chacha" #r "-core", v_core_##r, \ | |
975 | { &type_int, &type_hex, &type_hex, 0 } }, \ | |
976 | DEFxTAB(chacha, r) | |
977 | #define DEFXTAB(r) DEFxTAB(xchacha, r) | |
978 | CHACHA_VARS(DEFTAB) | |
979 | CHACHA_VARS(DEFXTAB) | |
980 | { 0, 0, { 0 } } | |
981 | }; | |
982 | ||
983 | int main(int argc, char *argv[]) | |
984 | { | |
985 | test_run(argc, argv, defs, SRCDIR"/t/chacha"); | |
986 | return (0); | |
987 | } | |
988 | ||
989 | #endif | |
990 | ||
991 | /*----- That's all, folks -------------------------------------------------*/ |