/src/mbedtls/library/sha256.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * FIPS-180-2 compliant SHA-256 implementation |
3 | | * |
4 | | * Copyright The Mbed TLS Contributors |
5 | | * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
6 | | */ |
7 | | /* |
8 | | * The SHA-256 Secure Hash Standard was published by NIST in 2002. |
9 | | * |
10 | | * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf |
11 | | */ |
12 | | |
13 | | #if defined(__clang__) && (__clang_major__ >= 4) |
14 | | |
15 | | /* Ideally, we would simply use MBEDTLS_ARCH_IS_ARMV8_A in the following #if, |
16 | | * but that is defined by build_info.h, and we need this block to happen first. */ |
17 | | #if defined(__ARM_ARCH) && (__ARM_ARCH_PROFILE == 'A') |
18 | | #if __ARM_ARCH >= 8 |
19 | | #define MBEDTLS_SHA256_ARCH_IS_ARMV8_A |
20 | | #endif |
21 | | #endif |
22 | | |
23 | | #if defined(MBEDTLS_SHA256_ARCH_IS_ARMV8_A) && !defined(__ARM_FEATURE_CRYPTO) |
24 | | /* TODO: Re-consider above after https://reviews.llvm.org/D131064 merged. |
25 | | * |
26 | | * The intrinsic declaration are guarded by predefined ACLE macros in clang: |
27 | | * these are normally only enabled by the -march option on the command line. |
28 | | * By defining the macros ourselves we gain access to those declarations without |
29 | | * requiring -march on the command line. |
30 | | * |
31 | | * `arm_neon.h` is included by common.h, so we put these defines |
32 | | * at the top of this file, before any includes. |
33 | | */ |
34 | | #define __ARM_FEATURE_CRYPTO 1 |
35 | | /* See: https://arm-software.github.io/acle/main/acle.html#cryptographic-extensions |
36 | | * |
37 | | * `__ARM_FEATURE_CRYPTO` is deprecated, but we need to continue to specify it |
38 | | * for older compilers. |
39 | | */ |
40 | | #define __ARM_FEATURE_SHA2 1 |
41 | | #define MBEDTLS_ENABLE_ARM_CRYPTO_EXTENSIONS_COMPILER_FLAG |
42 | | #endif |
43 | | |
44 | | #endif /* defined(__clang__) && (__clang_major__ >= 4) */ |
45 | | |
46 | | /* Ensure that SIG_SETMASK is defined when -std=c99 is used. */ |
47 | | #if !defined(_GNU_SOURCE) |
48 | | #define _GNU_SOURCE |
49 | | #endif |
50 | | |
51 | | #include "common.h" |
52 | | |
53 | | #if defined(MBEDTLS_SHA256_C) || defined(MBEDTLS_SHA224_C) |
54 | | |
55 | | #include "mbedtls/sha256.h" |
56 | | #include "mbedtls/platform_util.h" |
57 | | #include "mbedtls/error.h" |
58 | | |
59 | | #include <string.h> |
60 | | |
61 | | #include "mbedtls/platform.h" |
62 | | |
63 | | #if defined(MBEDTLS_ARCH_IS_ARMV8_A) |
64 | | |
65 | | # if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) || \ |
66 | | defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY) |
67 | | # if !defined(MBEDTLS_HAVE_NEON_INTRINSICS) |
68 | | # if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) |
69 | | # warning "Target does not support NEON instructions" |
70 | | # undef MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT |
71 | | # else |
72 | | # error "Target does not support NEON instructions" |
73 | | # endif |
74 | | # endif |
75 | | # endif |
76 | | |
77 | | # if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) || \ |
78 | | defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY) |
79 | | /* *INDENT-OFF* */ |
80 | | |
81 | | # if !defined(__ARM_FEATURE_CRYPTO) || defined(MBEDTLS_ENABLE_ARM_CRYPTO_EXTENSIONS_COMPILER_FLAG) |
82 | | # if defined(__ARMCOMPILER_VERSION) |
83 | | # if __ARMCOMPILER_VERSION <= 6090000 |
84 | | # error "Must use minimum -march=armv8-a+crypto for MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_*" |
85 | | # endif |
86 | | # pragma clang attribute push (__attribute__((target("sha2"))), apply_to=function) |
87 | | # define MBEDTLS_POP_TARGET_PRAGMA |
88 | | # elif defined(__clang__) |
89 | | # if __clang_major__ < 4 |
90 | | # error "A more recent Clang is required for MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_*" |
91 | | # endif |
92 | | # pragma clang attribute push (__attribute__((target("crypto"))), apply_to=function) |
93 | | # define MBEDTLS_POP_TARGET_PRAGMA |
94 | | # elif defined(__GNUC__) |
95 | | /* FIXME: GCC 5 claims to support Armv8 Crypto Extensions, but some |
96 | | * intrinsics are missing. Missing intrinsics could be worked around. |
97 | | */ |
98 | | # if __GNUC__ < 6 |
99 | | # error "A more recent GCC is required for MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_*" |
100 | | # else |
101 | | # pragma GCC push_options |
102 | | # pragma GCC target ("arch=armv8-a+crypto") |
103 | | # define MBEDTLS_POP_TARGET_PRAGMA |
104 | | # endif |
105 | | # else |
106 | | # error "Only GCC and Clang supported for MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_*" |
107 | | # endif |
108 | | # endif |
109 | | /* *INDENT-ON* */ |
110 | | |
111 | | # endif |
112 | | # if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) |
113 | | # if defined(__unix__) |
114 | | # if defined(__linux__) |
115 | | /* Our preferred method of detection is getauxval() */ |
116 | | # include <sys/auxv.h> |
117 | | /* These are not always defined via sys/auxv.h */ |
118 | | # if !defined(HWCAP_SHA2) |
119 | | # define HWCAP_SHA2 (1 << 6) |
120 | | # endif |
121 | | # if !defined(HWCAP2_SHA2) |
122 | | # define HWCAP2_SHA2 (1 << 3) |
123 | | # endif |
124 | | # endif |
125 | | /* Use SIGILL on Unix, and fall back to it on Linux */ |
126 | | # include <signal.h> |
127 | | # endif |
128 | | # endif |
129 | | #elif !defined(MBEDTLS_PLATFORM_IS_WINDOWS_ON_ARM64) |
130 | | # undef MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY |
131 | | # undef MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT |
132 | | #endif |
133 | | |
134 | | #if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) |
135 | | /* |
136 | | * Capability detection code comes early, so we can disable |
137 | | * MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT if no detection mechanism found |
138 | | */ |
139 | | #if defined(MBEDTLS_ARCH_IS_ARM64) && defined(HWCAP_SHA2) |
140 | | static int mbedtls_a64_crypto_sha256_determine_support(void) |
141 | | { |
142 | | return (getauxval(AT_HWCAP) & HWCAP_SHA2) ? 1 : 0; |
143 | | } |
144 | | #elif defined(MBEDTLS_ARCH_IS_ARM32) && defined(HWCAP2_SHA2) |
145 | | static int mbedtls_a64_crypto_sha256_determine_support(void) |
146 | | { |
147 | | return (getauxval(AT_HWCAP2) & HWCAP2_SHA2) ? 1 : 0; |
148 | | } |
149 | | #elif defined(__APPLE__) |
150 | | static int mbedtls_a64_crypto_sha256_determine_support(void) |
151 | | { |
152 | | return 1; |
153 | | } |
154 | | #elif defined(MBEDTLS_PLATFORM_IS_WINDOWS_ON_ARM64) |
155 | | #ifndef WIN32_LEAN_AND_MEAN |
156 | | #define WIN32_LEAN_AND_MEAN |
157 | | #endif |
158 | | #include <Windows.h> |
159 | | #include <processthreadsapi.h> |
160 | | |
161 | | static int mbedtls_a64_crypto_sha256_determine_support(void) |
162 | | { |
163 | | return IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE) ? |
164 | | 1 : 0; |
165 | | } |
166 | | #elif defined(__unix__) && defined(SIG_SETMASK) |
167 | | /* Detection with SIGILL, setjmp() and longjmp() */ |
168 | | #include <signal.h> |
169 | | #include <setjmp.h> |
170 | | |
171 | | static jmp_buf return_from_sigill; |
172 | | |
173 | | /* |
174 | | * Armv8-A SHA256 support detection via SIGILL |
175 | | */ |
176 | | static void sigill_handler(int signal) |
177 | | { |
178 | | (void) signal; |
179 | | longjmp(return_from_sigill, 1); |
180 | | } |
181 | | |
182 | | static int mbedtls_a64_crypto_sha256_determine_support(void) |
183 | | { |
184 | | struct sigaction old_action, new_action; |
185 | | |
186 | | sigset_t old_mask; |
187 | | if (sigprocmask(0, NULL, &old_mask)) { |
188 | | return 0; |
189 | | } |
190 | | |
191 | | sigemptyset(&new_action.sa_mask); |
192 | | new_action.sa_flags = 0; |
193 | | new_action.sa_handler = sigill_handler; |
194 | | |
195 | | sigaction(SIGILL, &new_action, &old_action); |
196 | | |
197 | | static int ret = 0; |
198 | | |
199 | | if (setjmp(return_from_sigill) == 0) { /* First return only */ |
200 | | /* If this traps, we will return a second time from setjmp() with 1 */ |
201 | | #if defined(MBEDTLS_ARCH_IS_ARM64) |
202 | | asm volatile ("sha256h q0, q0, v0.4s" : : : "v0"); |
203 | | #else |
204 | | asm volatile ("sha256h.32 q0, q0, q0" : : : "q0"); |
205 | | #endif |
206 | | ret = 1; |
207 | | } |
208 | | |
209 | | sigaction(SIGILL, &old_action, NULL); |
210 | | sigprocmask(SIG_SETMASK, &old_mask, NULL); |
211 | | |
212 | | return ret; |
213 | | } |
214 | | #else |
215 | | #warning "No mechanism to detect ARMV8_CRYPTO found, using C code only" |
216 | | #undef MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT |
217 | | #endif /* HWCAP_SHA2, __APPLE__, __unix__ && SIG_SETMASK */ |
218 | | |
219 | | #endif /* MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT */ |
220 | | |
221 | | #if !defined(MBEDTLS_SHA256_ALT) |
222 | | |
223 | 3.55M | #define SHA256_BLOCK_SIZE 64 |
224 | | |
225 | | void mbedtls_sha256_init(mbedtls_sha256_context *ctx) |
226 | 1.11k | { |
227 | 1.11k | memset(ctx, 0, sizeof(mbedtls_sha256_context)); |
228 | 1.11k | } |
229 | | |
230 | | void mbedtls_sha256_free(mbedtls_sha256_context *ctx) |
231 | 20.8k | { |
232 | 20.8k | if (ctx == NULL) { |
233 | 0 | return; |
234 | 0 | } |
235 | | |
236 | 20.8k | mbedtls_platform_zeroize(ctx, sizeof(mbedtls_sha256_context)); |
237 | 20.8k | } |
238 | | |
239 | | void mbedtls_sha256_clone(mbedtls_sha256_context *dst, |
240 | | const mbedtls_sha256_context *src) |
241 | 0 | { |
242 | 0 | *dst = *src; |
243 | 0 | } |
244 | | |
245 | | /* |
246 | | * SHA-256 context setup |
247 | | */ |
248 | | int mbedtls_sha256_starts(mbedtls_sha256_context *ctx, int is224) |
249 | 19.9k | { |
250 | 19.9k | #if defined(MBEDTLS_SHA224_C) && defined(MBEDTLS_SHA256_C) |
251 | 19.9k | if (is224 != 0 && is224 != 1) { |
252 | 0 | return MBEDTLS_ERR_SHA256_BAD_INPUT_DATA; |
253 | 0 | } |
254 | | #elif defined(MBEDTLS_SHA256_C) |
255 | | if (is224 != 0) { |
256 | | return MBEDTLS_ERR_SHA256_BAD_INPUT_DATA; |
257 | | } |
258 | | #else /* defined MBEDTLS_SHA224_C only */ |
259 | | if (is224 == 0) { |
260 | | return MBEDTLS_ERR_SHA256_BAD_INPUT_DATA; |
261 | | } |
262 | | #endif |
263 | | |
264 | 19.9k | ctx->total[0] = 0; |
265 | 19.9k | ctx->total[1] = 0; |
266 | | |
267 | 19.9k | if (is224 == 0) { |
268 | 10.6k | #if defined(MBEDTLS_SHA256_C) |
269 | 10.6k | ctx->state[0] = 0x6A09E667; |
270 | 10.6k | ctx->state[1] = 0xBB67AE85; |
271 | 10.6k | ctx->state[2] = 0x3C6EF372; |
272 | 10.6k | ctx->state[3] = 0xA54FF53A; |
273 | 10.6k | ctx->state[4] = 0x510E527F; |
274 | 10.6k | ctx->state[5] = 0x9B05688C; |
275 | 10.6k | ctx->state[6] = 0x1F83D9AB; |
276 | 10.6k | ctx->state[7] = 0x5BE0CD19; |
277 | 10.6k | #endif |
278 | 10.6k | } else { |
279 | 9.34k | #if defined(MBEDTLS_SHA224_C) |
280 | 9.34k | ctx->state[0] = 0xC1059ED8; |
281 | 9.34k | ctx->state[1] = 0x367CD507; |
282 | 9.34k | ctx->state[2] = 0x3070DD17; |
283 | 9.34k | ctx->state[3] = 0xF70E5939; |
284 | 9.34k | ctx->state[4] = 0xFFC00B31; |
285 | 9.34k | ctx->state[5] = 0x68581511; |
286 | 9.34k | ctx->state[6] = 0x64F98FA7; |
287 | 9.34k | ctx->state[7] = 0xBEFA4FA4; |
288 | 9.34k | #endif |
289 | 9.34k | } |
290 | | |
291 | 19.9k | #if defined(MBEDTLS_SHA224_C) |
292 | 19.9k | ctx->is224 = is224; |
293 | 19.9k | #endif |
294 | | |
295 | 19.9k | return 0; |
296 | 19.9k | } |
297 | | |
298 | | #if !defined(MBEDTLS_SHA256_PROCESS_ALT) |
299 | | static const uint32_t K[] = |
300 | | { |
301 | | 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5, |
302 | | 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5, |
303 | | 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3, |
304 | | 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174, |
305 | | 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC, |
306 | | 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA, |
307 | | 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7, |
308 | | 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967, |
309 | | 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13, |
310 | | 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85, |
311 | | 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3, |
312 | | 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070, |
313 | | 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5, |
314 | | 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3, |
315 | | 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208, |
316 | | 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2, |
317 | | }; |
318 | | |
319 | | #endif |
320 | | |
321 | | #if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) || \ |
322 | | defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY) |
323 | | |
324 | | #if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY) |
325 | | # define mbedtls_internal_sha256_process_many_a64_crypto mbedtls_internal_sha256_process_many |
326 | | # define mbedtls_internal_sha256_process_a64_crypto mbedtls_internal_sha256_process |
327 | | #endif |
328 | | |
329 | | static size_t mbedtls_internal_sha256_process_many_a64_crypto( |
330 | | mbedtls_sha256_context *ctx, const uint8_t *msg, size_t len) |
331 | | { |
332 | | uint32x4_t abcd = vld1q_u32(&ctx->state[0]); |
333 | | uint32x4_t efgh = vld1q_u32(&ctx->state[4]); |
334 | | |
335 | | size_t processed = 0; |
336 | | |
337 | | for (; |
338 | | len >= SHA256_BLOCK_SIZE; |
339 | | processed += SHA256_BLOCK_SIZE, |
340 | | msg += SHA256_BLOCK_SIZE, |
341 | | len -= SHA256_BLOCK_SIZE) { |
342 | | uint32x4_t tmp, abcd_prev; |
343 | | |
344 | | uint32x4_t abcd_orig = abcd; |
345 | | uint32x4_t efgh_orig = efgh; |
346 | | |
347 | | uint32x4_t sched0 = vreinterpretq_u32_u8(vld1q_u8(msg + 16 * 0)); |
348 | | uint32x4_t sched1 = vreinterpretq_u32_u8(vld1q_u8(msg + 16 * 1)); |
349 | | uint32x4_t sched2 = vreinterpretq_u32_u8(vld1q_u8(msg + 16 * 2)); |
350 | | uint32x4_t sched3 = vreinterpretq_u32_u8(vld1q_u8(msg + 16 * 3)); |
351 | | |
352 | | #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ /* Will be true if not defined */ |
353 | | /* Untested on BE */ |
354 | | sched0 = vreinterpretq_u32_u8(vrev32q_u8(vreinterpretq_u8_u32(sched0))); |
355 | | sched1 = vreinterpretq_u32_u8(vrev32q_u8(vreinterpretq_u8_u32(sched1))); |
356 | | sched2 = vreinterpretq_u32_u8(vrev32q_u8(vreinterpretq_u8_u32(sched2))); |
357 | | sched3 = vreinterpretq_u32_u8(vrev32q_u8(vreinterpretq_u8_u32(sched3))); |
358 | | #endif |
359 | | |
360 | | /* Rounds 0 to 3 */ |
361 | | tmp = vaddq_u32(sched0, vld1q_u32(&K[0])); |
362 | | abcd_prev = abcd; |
363 | | abcd = vsha256hq_u32(abcd_prev, efgh, tmp); |
364 | | efgh = vsha256h2q_u32(efgh, abcd_prev, tmp); |
365 | | |
366 | | /* Rounds 4 to 7 */ |
367 | | tmp = vaddq_u32(sched1, vld1q_u32(&K[4])); |
368 | | abcd_prev = abcd; |
369 | | abcd = vsha256hq_u32(abcd_prev, efgh, tmp); |
370 | | efgh = vsha256h2q_u32(efgh, abcd_prev, tmp); |
371 | | |
372 | | /* Rounds 8 to 11 */ |
373 | | tmp = vaddq_u32(sched2, vld1q_u32(&K[8])); |
374 | | abcd_prev = abcd; |
375 | | abcd = vsha256hq_u32(abcd_prev, efgh, tmp); |
376 | | efgh = vsha256h2q_u32(efgh, abcd_prev, tmp); |
377 | | |
378 | | /* Rounds 12 to 15 */ |
379 | | tmp = vaddq_u32(sched3, vld1q_u32(&K[12])); |
380 | | abcd_prev = abcd; |
381 | | abcd = vsha256hq_u32(abcd_prev, efgh, tmp); |
382 | | efgh = vsha256h2q_u32(efgh, abcd_prev, tmp); |
383 | | |
384 | | for (int t = 16; t < 64; t += 16) { |
385 | | /* Rounds t to t + 3 */ |
386 | | sched0 = vsha256su1q_u32(vsha256su0q_u32(sched0, sched1), sched2, sched3); |
387 | | tmp = vaddq_u32(sched0, vld1q_u32(&K[t])); |
388 | | abcd_prev = abcd; |
389 | | abcd = vsha256hq_u32(abcd_prev, efgh, tmp); |
390 | | efgh = vsha256h2q_u32(efgh, abcd_prev, tmp); |
391 | | |
392 | | /* Rounds t + 4 to t + 7 */ |
393 | | sched1 = vsha256su1q_u32(vsha256su0q_u32(sched1, sched2), sched3, sched0); |
394 | | tmp = vaddq_u32(sched1, vld1q_u32(&K[t + 4])); |
395 | | abcd_prev = abcd; |
396 | | abcd = vsha256hq_u32(abcd_prev, efgh, tmp); |
397 | | efgh = vsha256h2q_u32(efgh, abcd_prev, tmp); |
398 | | |
399 | | /* Rounds t + 8 to t + 11 */ |
400 | | sched2 = vsha256su1q_u32(vsha256su0q_u32(sched2, sched3), sched0, sched1); |
401 | | tmp = vaddq_u32(sched2, vld1q_u32(&K[t + 8])); |
402 | | abcd_prev = abcd; |
403 | | abcd = vsha256hq_u32(abcd_prev, efgh, tmp); |
404 | | efgh = vsha256h2q_u32(efgh, abcd_prev, tmp); |
405 | | |
406 | | /* Rounds t + 12 to t + 15 */ |
407 | | sched3 = vsha256su1q_u32(vsha256su0q_u32(sched3, sched0), sched1, sched2); |
408 | | tmp = vaddq_u32(sched3, vld1q_u32(&K[t + 12])); |
409 | | abcd_prev = abcd; |
410 | | abcd = vsha256hq_u32(abcd_prev, efgh, tmp); |
411 | | efgh = vsha256h2q_u32(efgh, abcd_prev, tmp); |
412 | | } |
413 | | |
414 | | abcd = vaddq_u32(abcd, abcd_orig); |
415 | | efgh = vaddq_u32(efgh, efgh_orig); |
416 | | } |
417 | | |
418 | | vst1q_u32(&ctx->state[0], abcd); |
419 | | vst1q_u32(&ctx->state[4], efgh); |
420 | | |
421 | | return processed; |
422 | | } |
423 | | |
424 | | #if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) |
425 | | /* |
426 | | * This function is for internal use only if we are building both C and Armv8-A |
427 | | * versions, otherwise it is renamed to be the public mbedtls_internal_sha256_process() |
428 | | */ |
429 | | static |
430 | | #endif |
431 | | int mbedtls_internal_sha256_process_a64_crypto(mbedtls_sha256_context *ctx, |
432 | | const unsigned char data[SHA256_BLOCK_SIZE]) |
433 | | { |
434 | | return (mbedtls_internal_sha256_process_many_a64_crypto(ctx, data, |
435 | | SHA256_BLOCK_SIZE) == |
436 | | SHA256_BLOCK_SIZE) ? 0 : -1; |
437 | | } |
438 | | |
439 | | #endif /* MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT || MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY */ |
440 | | |
441 | | #if defined(MBEDTLS_POP_TARGET_PRAGMA) |
442 | | #if defined(__clang__) |
443 | | #pragma clang attribute pop |
444 | | #elif defined(__GNUC__) |
445 | | #pragma GCC pop_options |
446 | | #endif |
447 | | #undef MBEDTLS_POP_TARGET_PRAGMA |
448 | | #endif |
449 | | |
450 | | #if !defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) |
451 | | #define mbedtls_internal_sha256_process_many_c mbedtls_internal_sha256_process_many |
452 | 840k | #define mbedtls_internal_sha256_process_c mbedtls_internal_sha256_process |
453 | | #endif |
454 | | |
455 | | |
456 | | #if !defined(MBEDTLS_SHA256_PROCESS_ALT) && \ |
457 | | !defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY) |
458 | | |
459 | 333M | #define SHR(x, n) (((x) & 0xFFFFFFFF) >> (n)) |
460 | 333M | #define ROTR(x, n) (SHR(x, n) | ((x) << (32 - (n)))) |
461 | | |
462 | | #define S0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3)) |
463 | | #define S1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10)) |
464 | | |
465 | 55.5M | #define S2(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22)) |
466 | 55.5M | #define S3(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25)) |
467 | | |
468 | 55.5M | #define F0(x, y, z) (((x) & (y)) | ((z) & ((x) | (y)))) |
469 | 55.5M | #define F1(x, y, z) ((z) ^ ((x) & ((y) ^ (z)))) |
470 | | |
471 | | #define R(t) \ |
472 | | ( \ |
473 | | local.W[t] = S1(local.W[(t) - 2]) + local.W[(t) - 7] + \ |
474 | | S0(local.W[(t) - 15]) + local.W[(t) - 16] \ |
475 | | ) |
476 | | |
477 | | #define P(a, b, c, d, e, f, g, h, x, K) \ |
478 | 55.5M | do \ |
479 | 55.5M | { \ |
480 | 55.5M | local.temp1 = (h) + S3(e) + F1((e), (f), (g)) + (K) + (x); \ |
481 | 55.5M | local.temp2 = S2(a) + F0((a), (b), (c)); \ |
482 | 55.5M | (d) += local.temp1; (h) = local.temp1 + local.temp2; \ |
483 | 55.5M | } while (0) |
484 | | |
485 | | #if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) |
486 | | /* |
487 | | * This function is for internal use only if we are building both C and Armv8 |
488 | | * versions, otherwise it is renamed to be the public mbedtls_internal_sha256_process() |
489 | | */ |
490 | | static |
491 | | #endif |
492 | | int mbedtls_internal_sha256_process_c(mbedtls_sha256_context *ctx, |
493 | | const unsigned char data[SHA256_BLOCK_SIZE]) |
494 | 867k | { |
495 | 867k | struct { |
496 | 867k | uint32_t temp1, temp2, W[64]; |
497 | 867k | uint32_t A[8]; |
498 | 867k | } local; |
499 | | |
500 | 867k | unsigned int i; |
501 | | |
502 | 7.80M | for (i = 0; i < 8; i++) { |
503 | 6.94M | local.A[i] = ctx->state[i]; |
504 | 6.94M | } |
505 | | |
506 | | #if defined(MBEDTLS_SHA256_SMALLER) |
507 | | for (i = 0; i < 64; i++) { |
508 | | if (i < 16) { |
509 | | local.W[i] = MBEDTLS_GET_UINT32_BE(data, 4 * i); |
510 | | } else { |
511 | | R(i); |
512 | | } |
513 | | |
514 | | P(local.A[0], local.A[1], local.A[2], local.A[3], local.A[4], |
515 | | local.A[5], local.A[6], local.A[7], local.W[i], K[i]); |
516 | | |
517 | | local.temp1 = local.A[7]; local.A[7] = local.A[6]; |
518 | | local.A[6] = local.A[5]; local.A[5] = local.A[4]; |
519 | | local.A[4] = local.A[3]; local.A[3] = local.A[2]; |
520 | | local.A[2] = local.A[1]; local.A[1] = local.A[0]; |
521 | | local.A[0] = local.temp1; |
522 | | } |
523 | | #else /* MBEDTLS_SHA256_SMALLER */ |
524 | 14.7M | for (i = 0; i < 16; i++) { |
525 | 13.8M | local.W[i] = MBEDTLS_GET_UINT32_BE(data, 4 * i); |
526 | 13.8M | } |
527 | | |
528 | 2.60M | for (i = 0; i < 16; i += 8) { |
529 | 1.73M | P(local.A[0], local.A[1], local.A[2], local.A[3], local.A[4], |
530 | 1.73M | local.A[5], local.A[6], local.A[7], local.W[i+0], K[i+0]); |
531 | 1.73M | P(local.A[7], local.A[0], local.A[1], local.A[2], local.A[3], |
532 | 1.73M | local.A[4], local.A[5], local.A[6], local.W[i+1], K[i+1]); |
533 | 1.73M | P(local.A[6], local.A[7], local.A[0], local.A[1], local.A[2], |
534 | 1.73M | local.A[3], local.A[4], local.A[5], local.W[i+2], K[i+2]); |
535 | 1.73M | P(local.A[5], local.A[6], local.A[7], local.A[0], local.A[1], |
536 | 1.73M | local.A[2], local.A[3], local.A[4], local.W[i+3], K[i+3]); |
537 | 1.73M | P(local.A[4], local.A[5], local.A[6], local.A[7], local.A[0], |
538 | 1.73M | local.A[1], local.A[2], local.A[3], local.W[i+4], K[i+4]); |
539 | 1.73M | P(local.A[3], local.A[4], local.A[5], local.A[6], local.A[7], |
540 | 1.73M | local.A[0], local.A[1], local.A[2], local.W[i+5], K[i+5]); |
541 | 1.73M | P(local.A[2], local.A[3], local.A[4], local.A[5], local.A[6], |
542 | 1.73M | local.A[7], local.A[0], local.A[1], local.W[i+6], K[i+6]); |
543 | 1.73M | P(local.A[1], local.A[2], local.A[3], local.A[4], local.A[5], |
544 | 1.73M | local.A[6], local.A[7], local.A[0], local.W[i+7], K[i+7]); |
545 | 1.73M | } |
546 | | |
547 | 6.07M | for (i = 16; i < 64; i += 8) { |
548 | 5.20M | P(local.A[0], local.A[1], local.A[2], local.A[3], local.A[4], |
549 | 5.20M | local.A[5], local.A[6], local.A[7], R(i+0), K[i+0]); |
550 | 5.20M | P(local.A[7], local.A[0], local.A[1], local.A[2], local.A[3], |
551 | 5.20M | local.A[4], local.A[5], local.A[6], R(i+1), K[i+1]); |
552 | 5.20M | P(local.A[6], local.A[7], local.A[0], local.A[1], local.A[2], |
553 | 5.20M | local.A[3], local.A[4], local.A[5], R(i+2), K[i+2]); |
554 | 5.20M | P(local.A[5], local.A[6], local.A[7], local.A[0], local.A[1], |
555 | 5.20M | local.A[2], local.A[3], local.A[4], R(i+3), K[i+3]); |
556 | 5.20M | P(local.A[4], local.A[5], local.A[6], local.A[7], local.A[0], |
557 | 5.20M | local.A[1], local.A[2], local.A[3], R(i+4), K[i+4]); |
558 | 5.20M | P(local.A[3], local.A[4], local.A[5], local.A[6], local.A[7], |
559 | 5.20M | local.A[0], local.A[1], local.A[2], R(i+5), K[i+5]); |
560 | 5.20M | P(local.A[2], local.A[3], local.A[4], local.A[5], local.A[6], |
561 | 5.20M | local.A[7], local.A[0], local.A[1], R(i+6), K[i+6]); |
562 | 5.20M | P(local.A[1], local.A[2], local.A[3], local.A[4], local.A[5], |
563 | 5.20M | local.A[6], local.A[7], local.A[0], R(i+7), K[i+7]); |
564 | 5.20M | } |
565 | 867k | #endif /* MBEDTLS_SHA256_SMALLER */ |
566 | | |
567 | 7.80M | for (i = 0; i < 8; i++) { |
568 | 6.94M | ctx->state[i] += local.A[i]; |
569 | 6.94M | } |
570 | | |
571 | | /* Zeroise buffers and variables to clear sensitive data from memory. */ |
572 | 867k | mbedtls_platform_zeroize(&local, sizeof(local)); |
573 | | |
574 | 867k | return 0; |
575 | 867k | } |
576 | | |
577 | | #endif /* !MBEDTLS_SHA256_PROCESS_ALT && !MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY */ |
578 | | |
579 | | |
580 | | #if !defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY) |
581 | | |
582 | | static size_t mbedtls_internal_sha256_process_many_c( |
583 | | mbedtls_sha256_context *ctx, const uint8_t *data, size_t len) |
584 | 26.6k | { |
585 | 26.6k | size_t processed = 0; |
586 | | |
587 | 867k | while (len >= SHA256_BLOCK_SIZE) { |
588 | 840k | if (mbedtls_internal_sha256_process_c(ctx, data) != 0) { |
589 | 0 | return 0; |
590 | 0 | } |
591 | | |
592 | 840k | data += SHA256_BLOCK_SIZE; |
593 | 840k | len -= SHA256_BLOCK_SIZE; |
594 | | |
595 | 840k | processed += SHA256_BLOCK_SIZE; |
596 | 840k | } |
597 | | |
598 | 26.6k | return processed; |
599 | 26.6k | } |
600 | | |
601 | | #endif /* !MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY */ |
602 | | |
603 | | |
604 | | #if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) |
605 | | |
606 | | static int mbedtls_a64_crypto_sha256_has_support(void) |
607 | | { |
608 | | static int done = 0; |
609 | | static int supported = 0; |
610 | | |
611 | | if (!done) { |
612 | | supported = mbedtls_a64_crypto_sha256_determine_support(); |
613 | | done = 1; |
614 | | } |
615 | | |
616 | | return supported; |
617 | | } |
618 | | |
619 | | static size_t mbedtls_internal_sha256_process_many(mbedtls_sha256_context *ctx, |
620 | | const uint8_t *msg, size_t len) |
621 | | { |
622 | | if (mbedtls_a64_crypto_sha256_has_support()) { |
623 | | return mbedtls_internal_sha256_process_many_a64_crypto(ctx, msg, len); |
624 | | } else { |
625 | | return mbedtls_internal_sha256_process_many_c(ctx, msg, len); |
626 | | } |
627 | | } |
628 | | |
629 | | int mbedtls_internal_sha256_process(mbedtls_sha256_context *ctx, |
630 | | const unsigned char data[SHA256_BLOCK_SIZE]) |
631 | | { |
632 | | if (mbedtls_a64_crypto_sha256_has_support()) { |
633 | | return mbedtls_internal_sha256_process_a64_crypto(ctx, data); |
634 | | } else { |
635 | | return mbedtls_internal_sha256_process_c(ctx, data); |
636 | | } |
637 | | } |
638 | | |
639 | | #endif /* MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT */ |
640 | | |
641 | | |
642 | | /* |
643 | | * SHA-256 process buffer |
644 | | */ |
645 | | int mbedtls_sha256_update(mbedtls_sha256_context *ctx, |
646 | | const unsigned char *input, |
647 | | size_t ilen) |
648 | 112k | { |
649 | 112k | int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
650 | 112k | size_t fill; |
651 | 112k | uint32_t left; |
652 | | |
653 | 112k | if (ilen == 0) { |
654 | 59.0k | return 0; |
655 | 59.0k | } |
656 | | |
657 | 53.7k | left = ctx->total[0] & 0x3F; |
658 | 53.7k | fill = SHA256_BLOCK_SIZE - left; |
659 | | |
660 | 53.7k | ctx->total[0] += (uint32_t) ilen; |
661 | 53.7k | ctx->total[0] &= 0xFFFFFFFF; |
662 | | |
663 | 53.7k | if (ctx->total[0] < (uint32_t) ilen) { |
664 | 0 | ctx->total[1]++; |
665 | 0 | } |
666 | | |
667 | 53.7k | if (left && ilen >= fill) { |
668 | 5.77k | memcpy((void *) (ctx->buffer + left), input, fill); |
669 | | |
670 | 5.77k | if ((ret = mbedtls_internal_sha256_process(ctx, ctx->buffer)) != 0) { |
671 | 0 | return ret; |
672 | 0 | } |
673 | | |
674 | 5.77k | input += fill; |
675 | 5.77k | ilen -= fill; |
676 | 5.77k | left = 0; |
677 | 5.77k | } |
678 | | |
679 | 80.4k | while (ilen >= SHA256_BLOCK_SIZE) { |
680 | 26.6k | size_t processed = |
681 | 26.6k | mbedtls_internal_sha256_process_many(ctx, input, ilen); |
682 | 26.6k | if (processed < SHA256_BLOCK_SIZE) { |
683 | 0 | return MBEDTLS_ERR_ERROR_GENERIC_ERROR; |
684 | 0 | } |
685 | | |
686 | 26.6k | input += processed; |
687 | 26.6k | ilen -= processed; |
688 | 26.6k | } |
689 | | |
690 | 53.7k | if (ilen > 0) { |
691 | 34.3k | memcpy((void *) (ctx->buffer + left), input, ilen); |
692 | 34.3k | } |
693 | | |
694 | 53.7k | return 0; |
695 | 53.7k | } |
696 | | |
697 | | /* |
698 | | * SHA-256 final digest |
699 | | */ |
700 | | int mbedtls_sha256_finish(mbedtls_sha256_context *ctx, |
701 | | unsigned char *output) |
702 | 19.7k | { |
703 | 19.7k | int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
704 | 19.7k | uint32_t used; |
705 | 19.7k | uint32_t high, low; |
706 | 19.7k | int truncated = 0; |
707 | | |
708 | | /* |
709 | | * Add padding: 0x80 then 0x00 until 8 bytes remain for the length |
710 | | */ |
711 | 19.7k | used = ctx->total[0] & 0x3F; |
712 | | |
713 | 19.7k | ctx->buffer[used++] = 0x80; |
714 | | |
715 | 19.7k | if (used <= 56) { |
716 | | /* Enough room for padding + length in current block */ |
717 | 18.1k | memset(ctx->buffer + used, 0, 56 - used); |
718 | 18.1k | } else { |
719 | | /* We'll need an extra block */ |
720 | 1.59k | memset(ctx->buffer + used, 0, SHA256_BLOCK_SIZE - used); |
721 | | |
722 | 1.59k | if ((ret = mbedtls_internal_sha256_process(ctx, ctx->buffer)) != 0) { |
723 | 0 | goto exit; |
724 | 0 | } |
725 | | |
726 | 1.59k | memset(ctx->buffer, 0, 56); |
727 | 1.59k | } |
728 | | |
729 | | /* |
730 | | * Add message length |
731 | | */ |
732 | 19.7k | high = (ctx->total[0] >> 29) |
733 | 19.7k | | (ctx->total[1] << 3); |
734 | 19.7k | low = (ctx->total[0] << 3); |
735 | | |
736 | 19.7k | MBEDTLS_PUT_UINT32_BE(high, ctx->buffer, 56); |
737 | 19.7k | MBEDTLS_PUT_UINT32_BE(low, ctx->buffer, 60); |
738 | | |
739 | 19.7k | if ((ret = mbedtls_internal_sha256_process(ctx, ctx->buffer)) != 0) { |
740 | 0 | goto exit; |
741 | 0 | } |
742 | | |
743 | | /* |
744 | | * Output final state |
745 | | */ |
746 | 19.7k | MBEDTLS_PUT_UINT32_BE(ctx->state[0], output, 0); |
747 | 19.7k | MBEDTLS_PUT_UINT32_BE(ctx->state[1], output, 4); |
748 | 19.7k | MBEDTLS_PUT_UINT32_BE(ctx->state[2], output, 8); |
749 | 19.7k | MBEDTLS_PUT_UINT32_BE(ctx->state[3], output, 12); |
750 | 19.7k | MBEDTLS_PUT_UINT32_BE(ctx->state[4], output, 16); |
751 | 19.7k | MBEDTLS_PUT_UINT32_BE(ctx->state[5], output, 20); |
752 | 19.7k | MBEDTLS_PUT_UINT32_BE(ctx->state[6], output, 24); |
753 | | |
754 | 19.7k | #if defined(MBEDTLS_SHA224_C) |
755 | 19.7k | truncated = ctx->is224; |
756 | 19.7k | #endif |
757 | 19.7k | if (!truncated) { |
758 | 10.5k | MBEDTLS_PUT_UINT32_BE(ctx->state[7], output, 28); |
759 | 10.5k | } |
760 | | |
761 | 19.7k | ret = 0; |
762 | | |
763 | 19.7k | exit: |
764 | 19.7k | mbedtls_sha256_free(ctx); |
765 | 19.7k | return ret; |
766 | 19.7k | } |
767 | | |
768 | | #endif /* !MBEDTLS_SHA256_ALT */ |
769 | | |
770 | | /* |
771 | | * output = SHA-256( input buffer ) |
772 | | */ |
773 | | int mbedtls_sha256(const unsigned char *input, |
774 | | size_t ilen, |
775 | | unsigned char *output, |
776 | | int is224) |
777 | 72 | { |
778 | 72 | int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
779 | 72 | mbedtls_sha256_context ctx; |
780 | | |
781 | 72 | #if defined(MBEDTLS_SHA224_C) && defined(MBEDTLS_SHA256_C) |
782 | 72 | if (is224 != 0 && is224 != 1) { |
783 | 0 | return MBEDTLS_ERR_SHA256_BAD_INPUT_DATA; |
784 | 0 | } |
785 | | #elif defined(MBEDTLS_SHA256_C) |
786 | | if (is224 != 0) { |
787 | | return MBEDTLS_ERR_SHA256_BAD_INPUT_DATA; |
788 | | } |
789 | | #else /* defined MBEDTLS_SHA224_C only */ |
790 | | if (is224 == 0) { |
791 | | return MBEDTLS_ERR_SHA256_BAD_INPUT_DATA; |
792 | | } |
793 | | #endif |
794 | | |
795 | 72 | mbedtls_sha256_init(&ctx); |
796 | | |
797 | 72 | if ((ret = mbedtls_sha256_starts(&ctx, is224)) != 0) { |
798 | 0 | goto exit; |
799 | 0 | } |
800 | | |
801 | 72 | if ((ret = mbedtls_sha256_update(&ctx, input, ilen)) != 0) { |
802 | 0 | goto exit; |
803 | 0 | } |
804 | | |
805 | 72 | if ((ret = mbedtls_sha256_finish(&ctx, output)) != 0) { |
806 | 0 | goto exit; |
807 | 0 | } |
808 | | |
809 | 72 | exit: |
810 | 72 | mbedtls_sha256_free(&ctx); |
811 | | |
812 | 72 | return ret; |
813 | 72 | } |
814 | | |
815 | | #if defined(MBEDTLS_SELF_TEST) |
816 | | /* |
817 | | * FIPS-180-2 test vectors |
818 | | */ |
819 | | static const unsigned char sha_test_buf[3][57] = |
820 | | { |
821 | | { "abc" }, |
822 | | { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" }, |
823 | | { "" } |
824 | | }; |
825 | | |
826 | | static const size_t sha_test_buflen[3] = |
827 | | { |
828 | | 3, 56, 1000 |
829 | | }; |
830 | | |
831 | | typedef const unsigned char (sha_test_sum_t)[32]; |
832 | | |
833 | | /* |
834 | | * SHA-224 test vectors |
835 | | */ |
836 | | #if defined(MBEDTLS_SHA224_C) |
837 | | static sha_test_sum_t sha224_test_sum[] = |
838 | | { |
839 | | { 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22, |
840 | | 0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3, |
841 | | 0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7, |
842 | | 0xE3, 0x6C, 0x9D, 0xA7 }, |
843 | | { 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC, |
844 | | 0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50, |
845 | | 0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19, |
846 | | 0x52, 0x52, 0x25, 0x25 }, |
847 | | { 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8, |
848 | | 0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B, |
849 | | 0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE, |
850 | | 0x4E, 0xE7, 0xAD, 0x67 } |
851 | | }; |
852 | | #endif |
853 | | |
854 | | /* |
855 | | * SHA-256 test vectors |
856 | | */ |
857 | | #if defined(MBEDTLS_SHA256_C) |
858 | | static sha_test_sum_t sha256_test_sum[] = |
859 | | { |
860 | | { 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA, |
861 | | 0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23, |
862 | | 0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C, |
863 | | 0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD }, |
864 | | { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8, |
865 | | 0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39, |
866 | | 0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67, |
867 | | 0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 }, |
868 | | { 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92, |
869 | | 0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67, |
870 | | 0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E, |
871 | | 0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 } |
872 | | }; |
873 | | #endif |
874 | | |
875 | | /* |
876 | | * Checkup routine |
877 | | */ |
878 | | static int mbedtls_sha256_common_self_test(int verbose, int is224) |
879 | 0 | { |
880 | 0 | int i, buflen, ret = 0; |
881 | 0 | unsigned char *buf; |
882 | 0 | unsigned char sha256sum[32]; |
883 | 0 | mbedtls_sha256_context ctx; |
884 | |
|
885 | 0 | #if defined(MBEDTLS_SHA224_C) && defined(MBEDTLS_SHA256_C) |
886 | 0 | sha_test_sum_t *sha_test_sum = (is224) ? sha224_test_sum : sha256_test_sum; |
887 | | #elif defined(MBEDTLS_SHA256_C) |
888 | | sha_test_sum_t *sha_test_sum = sha256_test_sum; |
889 | | #else |
890 | | sha_test_sum_t *sha_test_sum = sha224_test_sum; |
891 | | #endif |
892 | |
|
893 | 0 | buf = mbedtls_calloc(1024, sizeof(unsigned char)); |
894 | 0 | if (NULL == buf) { |
895 | 0 | if (verbose != 0) { |
896 | 0 | mbedtls_printf("Buffer allocation failed\n"); |
897 | 0 | } |
898 | |
|
899 | 0 | return 1; |
900 | 0 | } |
901 | | |
902 | 0 | mbedtls_sha256_init(&ctx); |
903 | |
|
904 | 0 | for (i = 0; i < 3; i++) { |
905 | 0 | if (verbose != 0) { |
906 | 0 | mbedtls_printf(" SHA-%d test #%d: ", 256 - is224 * 32, i + 1); |
907 | 0 | } |
908 | |
|
909 | 0 | if ((ret = mbedtls_sha256_starts(&ctx, is224)) != 0) { |
910 | 0 | goto fail; |
911 | 0 | } |
912 | | |
913 | 0 | if (i == 2) { |
914 | 0 | memset(buf, 'a', buflen = 1000); |
915 | |
|
916 | 0 | for (int j = 0; j < 1000; j++) { |
917 | 0 | ret = mbedtls_sha256_update(&ctx, buf, buflen); |
918 | 0 | if (ret != 0) { |
919 | 0 | goto fail; |
920 | 0 | } |
921 | 0 | } |
922 | |
|
923 | 0 | } else { |
924 | 0 | ret = mbedtls_sha256_update(&ctx, sha_test_buf[i], |
925 | 0 | sha_test_buflen[i]); |
926 | 0 | if (ret != 0) { |
927 | 0 | goto fail; |
928 | 0 | } |
929 | 0 | } |
930 | | |
931 | 0 | if ((ret = mbedtls_sha256_finish(&ctx, sha256sum)) != 0) { |
932 | 0 | goto fail; |
933 | 0 | } |
934 | | |
935 | | |
936 | 0 | if (memcmp(sha256sum, sha_test_sum[i], 32 - is224 * 4) != 0) { |
937 | 0 | ret = 1; |
938 | 0 | goto fail; |
939 | 0 | } |
940 | | |
941 | 0 | if (verbose != 0) { |
942 | 0 | mbedtls_printf("passed\n"); |
943 | 0 | } |
944 | 0 | } |
945 | | |
946 | 0 | if (verbose != 0) { |
947 | 0 | mbedtls_printf("\n"); |
948 | 0 | } |
949 | |
|
950 | 0 | goto exit; |
951 | | |
952 | 0 | fail: |
953 | 0 | if (verbose != 0) { |
954 | 0 | mbedtls_printf("failed\n"); |
955 | 0 | } |
956 | |
|
957 | 0 | exit: |
958 | 0 | mbedtls_sha256_free(&ctx); |
959 | 0 | mbedtls_free(buf); |
960 | |
|
961 | 0 | return ret; |
962 | 0 | } |
963 | | |
964 | | #if defined(MBEDTLS_SHA256_C) |
965 | | int mbedtls_sha256_self_test(int verbose) |
966 | 0 | { |
967 | 0 | return mbedtls_sha256_common_self_test(verbose, 0); |
968 | 0 | } |
969 | | #endif /* MBEDTLS_SHA256_C */ |
970 | | |
971 | | #if defined(MBEDTLS_SHA224_C) |
972 | | int mbedtls_sha224_self_test(int verbose) |
973 | 0 | { |
974 | 0 | return mbedtls_sha256_common_self_test(verbose, 1); |
975 | 0 | } |
976 | | #endif /* MBEDTLS_SHA224_C */ |
977 | | |
978 | | #endif /* MBEDTLS_SELF_TEST */ |
979 | | |
980 | | #endif /* MBEDTLS_SHA256_C || MBEDTLS_SHA224_C */ |