/work/mbedtls-2.28.8/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 | | #include "common.h" |
14 | | |
15 | | #if defined(MBEDTLS_SHA256_C) |
16 | | |
17 | | #include "mbedtls/sha256.h" |
18 | | #include "mbedtls/platform_util.h" |
19 | | #include "mbedtls/error.h" |
20 | | |
21 | | #include <string.h> |
22 | | |
23 | | #include "mbedtls/platform.h" |
24 | | |
25 | | #define SHA256_VALIDATE_RET(cond) \ |
26 | 0 | MBEDTLS_INTERNAL_VALIDATE_RET(cond, MBEDTLS_ERR_SHA256_BAD_INPUT_DATA) |
27 | 0 | #define SHA256_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE(cond) |
28 | | |
29 | | #if !defined(MBEDTLS_SHA256_ALT) |
30 | | |
31 | | void mbedtls_sha256_init(mbedtls_sha256_context *ctx) |
32 | 0 | { |
33 | 0 | SHA256_VALIDATE(ctx != NULL); |
34 | |
|
35 | 0 | memset(ctx, 0, sizeof(mbedtls_sha256_context)); |
36 | 0 | } |
37 | | |
38 | | void mbedtls_sha256_free(mbedtls_sha256_context *ctx) |
39 | 0 | { |
40 | 0 | if (ctx == NULL) { |
41 | 0 | return; |
42 | 0 | } |
43 | | |
44 | 0 | mbedtls_platform_zeroize(ctx, sizeof(mbedtls_sha256_context)); |
45 | 0 | } |
46 | | |
47 | | void mbedtls_sha256_clone(mbedtls_sha256_context *dst, |
48 | | const mbedtls_sha256_context *src) |
49 | 0 | { |
50 | 0 | SHA256_VALIDATE(dst != NULL); |
51 | 0 | SHA256_VALIDATE(src != NULL); |
52 | |
|
53 | 0 | *dst = *src; |
54 | 0 | } |
55 | | |
56 | | /* |
57 | | * SHA-256 context setup |
58 | | */ |
59 | | int mbedtls_sha256_starts_ret(mbedtls_sha256_context *ctx, int is224) |
60 | 0 | { |
61 | 0 | SHA256_VALIDATE_RET(ctx != NULL); |
62 | 0 | SHA256_VALIDATE_RET(is224 == 0 || is224 == 1); |
63 | |
|
64 | 0 | ctx->total[0] = 0; |
65 | 0 | ctx->total[1] = 0; |
66 | |
|
67 | 0 | if (is224 == 0) { |
68 | | /* SHA-256 */ |
69 | 0 | ctx->state[0] = 0x6A09E667; |
70 | 0 | ctx->state[1] = 0xBB67AE85; |
71 | 0 | ctx->state[2] = 0x3C6EF372; |
72 | 0 | ctx->state[3] = 0xA54FF53A; |
73 | 0 | ctx->state[4] = 0x510E527F; |
74 | 0 | ctx->state[5] = 0x9B05688C; |
75 | 0 | ctx->state[6] = 0x1F83D9AB; |
76 | 0 | ctx->state[7] = 0x5BE0CD19; |
77 | 0 | } else { |
78 | | /* SHA-224 */ |
79 | 0 | ctx->state[0] = 0xC1059ED8; |
80 | 0 | ctx->state[1] = 0x367CD507; |
81 | 0 | ctx->state[2] = 0x3070DD17; |
82 | 0 | ctx->state[3] = 0xF70E5939; |
83 | 0 | ctx->state[4] = 0xFFC00B31; |
84 | 0 | ctx->state[5] = 0x68581511; |
85 | 0 | ctx->state[6] = 0x64F98FA7; |
86 | 0 | ctx->state[7] = 0xBEFA4FA4; |
87 | 0 | } |
88 | |
|
89 | 0 | ctx->is224 = is224; |
90 | |
|
91 | 0 | return 0; |
92 | 0 | } |
93 | | |
94 | | #if !defined(MBEDTLS_DEPRECATED_REMOVED) |
95 | | void mbedtls_sha256_starts(mbedtls_sha256_context *ctx, |
96 | | int is224) |
97 | 0 | { |
98 | 0 | mbedtls_sha256_starts_ret(ctx, is224); |
99 | 0 | } |
100 | | #endif |
101 | | |
102 | | #if !defined(MBEDTLS_SHA256_PROCESS_ALT) |
103 | | static const uint32_t K[] = |
104 | | { |
105 | | 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5, |
106 | | 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5, |
107 | | 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3, |
108 | | 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174, |
109 | | 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC, |
110 | | 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA, |
111 | | 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7, |
112 | | 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967, |
113 | | 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13, |
114 | | 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85, |
115 | | 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3, |
116 | | 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070, |
117 | | 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5, |
118 | | 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3, |
119 | | 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208, |
120 | | 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2, |
121 | | }; |
122 | | |
123 | 0 | #define SHR(x, n) (((x) & 0xFFFFFFFF) >> (n)) |
124 | 0 | #define ROTR(x, n) (SHR(x, n) | ((x) << (32 - (n)))) |
125 | | |
126 | | #define S0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3)) |
127 | | #define S1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10)) |
128 | | |
129 | 0 | #define S2(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22)) |
130 | 0 | #define S3(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25)) |
131 | | |
132 | 0 | #define F0(x, y, z) (((x) & (y)) | ((z) & ((x) | (y)))) |
133 | 0 | #define F1(x, y, z) ((z) ^ ((x) & ((y) ^ (z)))) |
134 | | |
135 | | #define R(t) \ |
136 | | ( \ |
137 | | local.W[t] = S1(local.W[(t) - 2]) + local.W[(t) - 7] + \ |
138 | | S0(local.W[(t) - 15]) + local.W[(t) - 16] \ |
139 | | ) |
140 | | |
141 | | #define P(a, b, c, d, e, f, g, h, x, K) \ |
142 | 0 | do \ |
143 | 0 | { \ |
144 | 0 | local.temp1 = (h) + S3(e) + F1((e), (f), (g)) + (K) + (x); \ |
145 | 0 | local.temp2 = S2(a) + F0((a), (b), (c)); \ |
146 | 0 | (d) += local.temp1; (h) = local.temp1 + local.temp2; \ |
147 | 0 | } while (0) |
148 | | |
149 | | int mbedtls_internal_sha256_process(mbedtls_sha256_context *ctx, |
150 | | const unsigned char data[64]) |
151 | 0 | { |
152 | 0 | struct { |
153 | 0 | uint32_t temp1, temp2, W[64]; |
154 | 0 | uint32_t A[8]; |
155 | 0 | } local; |
156 | |
|
157 | 0 | unsigned int i; |
158 | |
|
159 | 0 | SHA256_VALIDATE_RET(ctx != NULL); |
160 | 0 | SHA256_VALIDATE_RET((const unsigned char *) data != NULL); |
161 | |
|
162 | 0 | for (i = 0; i < 8; i++) { |
163 | 0 | local.A[i] = ctx->state[i]; |
164 | 0 | } |
165 | |
|
166 | | #if defined(MBEDTLS_SHA256_SMALLER) |
167 | | for (i = 0; i < 64; i++) { |
168 | | if (i < 16) { |
169 | | local.W[i] = MBEDTLS_GET_UINT32_BE(data, 4 * i); |
170 | | } else { |
171 | | R(i); |
172 | | } |
173 | | |
174 | | P(local.A[0], local.A[1], local.A[2], local.A[3], local.A[4], |
175 | | local.A[5], local.A[6], local.A[7], local.W[i], K[i]); |
176 | | |
177 | | local.temp1 = local.A[7]; local.A[7] = local.A[6]; |
178 | | local.A[6] = local.A[5]; local.A[5] = local.A[4]; |
179 | | local.A[4] = local.A[3]; local.A[3] = local.A[2]; |
180 | | local.A[2] = local.A[1]; local.A[1] = local.A[0]; |
181 | | local.A[0] = local.temp1; |
182 | | } |
183 | | #else /* MBEDTLS_SHA256_SMALLER */ |
184 | 0 | for (i = 0; i < 16; i++) { |
185 | 0 | local.W[i] = MBEDTLS_GET_UINT32_BE(data, 4 * i); |
186 | 0 | } |
187 | |
|
188 | 0 | for (i = 0; i < 16; i += 8) { |
189 | 0 | P(local.A[0], local.A[1], local.A[2], local.A[3], local.A[4], |
190 | 0 | local.A[5], local.A[6], local.A[7], local.W[i+0], K[i+0]); |
191 | 0 | P(local.A[7], local.A[0], local.A[1], local.A[2], local.A[3], |
192 | 0 | local.A[4], local.A[5], local.A[6], local.W[i+1], K[i+1]); |
193 | 0 | P(local.A[6], local.A[7], local.A[0], local.A[1], local.A[2], |
194 | 0 | local.A[3], local.A[4], local.A[5], local.W[i+2], K[i+2]); |
195 | 0 | P(local.A[5], local.A[6], local.A[7], local.A[0], local.A[1], |
196 | 0 | local.A[2], local.A[3], local.A[4], local.W[i+3], K[i+3]); |
197 | 0 | P(local.A[4], local.A[5], local.A[6], local.A[7], local.A[0], |
198 | 0 | local.A[1], local.A[2], local.A[3], local.W[i+4], K[i+4]); |
199 | 0 | P(local.A[3], local.A[4], local.A[5], local.A[6], local.A[7], |
200 | 0 | local.A[0], local.A[1], local.A[2], local.W[i+5], K[i+5]); |
201 | 0 | P(local.A[2], local.A[3], local.A[4], local.A[5], local.A[6], |
202 | 0 | local.A[7], local.A[0], local.A[1], local.W[i+6], K[i+6]); |
203 | 0 | P(local.A[1], local.A[2], local.A[3], local.A[4], local.A[5], |
204 | 0 | local.A[6], local.A[7], local.A[0], local.W[i+7], K[i+7]); |
205 | 0 | } |
206 | |
|
207 | 0 | for (i = 16; i < 64; i += 8) { |
208 | 0 | P(local.A[0], local.A[1], local.A[2], local.A[3], local.A[4], |
209 | 0 | local.A[5], local.A[6], local.A[7], R(i+0), K[i+0]); |
210 | 0 | P(local.A[7], local.A[0], local.A[1], local.A[2], local.A[3], |
211 | 0 | local.A[4], local.A[5], local.A[6], R(i+1), K[i+1]); |
212 | 0 | P(local.A[6], local.A[7], local.A[0], local.A[1], local.A[2], |
213 | 0 | local.A[3], local.A[4], local.A[5], R(i+2), K[i+2]); |
214 | 0 | P(local.A[5], local.A[6], local.A[7], local.A[0], local.A[1], |
215 | 0 | local.A[2], local.A[3], local.A[4], R(i+3), K[i+3]); |
216 | 0 | P(local.A[4], local.A[5], local.A[6], local.A[7], local.A[0], |
217 | 0 | local.A[1], local.A[2], local.A[3], R(i+4), K[i+4]); |
218 | 0 | P(local.A[3], local.A[4], local.A[5], local.A[6], local.A[7], |
219 | 0 | local.A[0], local.A[1], local.A[2], R(i+5), K[i+5]); |
220 | 0 | P(local.A[2], local.A[3], local.A[4], local.A[5], local.A[6], |
221 | 0 | local.A[7], local.A[0], local.A[1], R(i+6), K[i+6]); |
222 | 0 | P(local.A[1], local.A[2], local.A[3], local.A[4], local.A[5], |
223 | 0 | local.A[6], local.A[7], local.A[0], R(i+7), K[i+7]); |
224 | 0 | } |
225 | 0 | #endif /* MBEDTLS_SHA256_SMALLER */ |
226 | |
|
227 | 0 | for (i = 0; i < 8; i++) { |
228 | 0 | ctx->state[i] += local.A[i]; |
229 | 0 | } |
230 | | |
231 | | /* Zeroise buffers and variables to clear sensitive data from memory. */ |
232 | 0 | mbedtls_platform_zeroize(&local, sizeof(local)); |
233 | |
|
234 | 0 | return 0; |
235 | 0 | } |
236 | | |
237 | | #if !defined(MBEDTLS_DEPRECATED_REMOVED) |
238 | | void mbedtls_sha256_process(mbedtls_sha256_context *ctx, |
239 | | const unsigned char data[64]) |
240 | 0 | { |
241 | 0 | mbedtls_internal_sha256_process(ctx, data); |
242 | 0 | } |
243 | | #endif |
244 | | #endif /* !MBEDTLS_SHA256_PROCESS_ALT */ |
245 | | |
246 | | /* |
247 | | * SHA-256 process buffer |
248 | | */ |
249 | | int mbedtls_sha256_update_ret(mbedtls_sha256_context *ctx, |
250 | | const unsigned char *input, |
251 | | size_t ilen) |
252 | 0 | { |
253 | 0 | int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
254 | 0 | size_t fill; |
255 | 0 | uint32_t left; |
256 | |
|
257 | 0 | SHA256_VALIDATE_RET(ctx != NULL); |
258 | 0 | SHA256_VALIDATE_RET(ilen == 0 || input != NULL); |
259 | |
|
260 | 0 | if (ilen == 0) { |
261 | 0 | return 0; |
262 | 0 | } |
263 | | |
264 | 0 | left = ctx->total[0] & 0x3F; |
265 | 0 | fill = 64 - left; |
266 | |
|
267 | 0 | ctx->total[0] += (uint32_t) ilen; |
268 | 0 | ctx->total[0] &= 0xFFFFFFFF; |
269 | |
|
270 | 0 | if (ctx->total[0] < (uint32_t) ilen) { |
271 | 0 | ctx->total[1]++; |
272 | 0 | } |
273 | |
|
274 | 0 | if (left && ilen >= fill) { |
275 | 0 | memcpy((void *) (ctx->buffer + left), input, fill); |
276 | |
|
277 | 0 | if ((ret = mbedtls_internal_sha256_process(ctx, ctx->buffer)) != 0) { |
278 | 0 | return ret; |
279 | 0 | } |
280 | | |
281 | 0 | input += fill; |
282 | 0 | ilen -= fill; |
283 | 0 | left = 0; |
284 | 0 | } |
285 | | |
286 | 0 | while (ilen >= 64) { |
287 | 0 | if ((ret = mbedtls_internal_sha256_process(ctx, input)) != 0) { |
288 | 0 | return ret; |
289 | 0 | } |
290 | | |
291 | 0 | input += 64; |
292 | 0 | ilen -= 64; |
293 | 0 | } |
294 | | |
295 | 0 | if (ilen > 0) { |
296 | 0 | memcpy((void *) (ctx->buffer + left), input, ilen); |
297 | 0 | } |
298 | |
|
299 | 0 | return 0; |
300 | 0 | } |
301 | | |
302 | | #if !defined(MBEDTLS_DEPRECATED_REMOVED) |
303 | | void mbedtls_sha256_update(mbedtls_sha256_context *ctx, |
304 | | const unsigned char *input, |
305 | | size_t ilen) |
306 | 0 | { |
307 | 0 | mbedtls_sha256_update_ret(ctx, input, ilen); |
308 | 0 | } |
309 | | #endif |
310 | | |
311 | | /* |
312 | | * SHA-256 final digest |
313 | | */ |
314 | | int mbedtls_sha256_finish_ret(mbedtls_sha256_context *ctx, |
315 | | unsigned char output[32]) |
316 | 0 | { |
317 | 0 | int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
318 | 0 | uint32_t used; |
319 | 0 | uint32_t high, low; |
320 | |
|
321 | 0 | SHA256_VALIDATE_RET(ctx != NULL); |
322 | 0 | SHA256_VALIDATE_RET((unsigned char *) output != NULL); |
323 | | |
324 | | /* |
325 | | * Add padding: 0x80 then 0x00 until 8 bytes remain for the length |
326 | | */ |
327 | 0 | used = ctx->total[0] & 0x3F; |
328 | |
|
329 | 0 | ctx->buffer[used++] = 0x80; |
330 | |
|
331 | 0 | if (used <= 56) { |
332 | | /* Enough room for padding + length in current block */ |
333 | 0 | memset(ctx->buffer + used, 0, 56 - used); |
334 | 0 | } else { |
335 | | /* We'll need an extra block */ |
336 | 0 | memset(ctx->buffer + used, 0, 64 - used); |
337 | |
|
338 | 0 | if ((ret = mbedtls_internal_sha256_process(ctx, ctx->buffer)) != 0) { |
339 | 0 | return ret; |
340 | 0 | } |
341 | | |
342 | 0 | memset(ctx->buffer, 0, 56); |
343 | 0 | } |
344 | | |
345 | | /* |
346 | | * Add message length |
347 | | */ |
348 | 0 | high = (ctx->total[0] >> 29) |
349 | 0 | | (ctx->total[1] << 3); |
350 | 0 | low = (ctx->total[0] << 3); |
351 | |
|
352 | 0 | MBEDTLS_PUT_UINT32_BE(high, ctx->buffer, 56); |
353 | 0 | MBEDTLS_PUT_UINT32_BE(low, ctx->buffer, 60); |
354 | |
|
355 | 0 | if ((ret = mbedtls_internal_sha256_process(ctx, ctx->buffer)) != 0) { |
356 | 0 | return ret; |
357 | 0 | } |
358 | | |
359 | | /* |
360 | | * Output final state |
361 | | */ |
362 | 0 | MBEDTLS_PUT_UINT32_BE(ctx->state[0], output, 0); |
363 | 0 | MBEDTLS_PUT_UINT32_BE(ctx->state[1], output, 4); |
364 | 0 | MBEDTLS_PUT_UINT32_BE(ctx->state[2], output, 8); |
365 | 0 | MBEDTLS_PUT_UINT32_BE(ctx->state[3], output, 12); |
366 | 0 | MBEDTLS_PUT_UINT32_BE(ctx->state[4], output, 16); |
367 | 0 | MBEDTLS_PUT_UINT32_BE(ctx->state[5], output, 20); |
368 | 0 | MBEDTLS_PUT_UINT32_BE(ctx->state[6], output, 24); |
369 | |
|
370 | 0 | if (ctx->is224 == 0) { |
371 | 0 | MBEDTLS_PUT_UINT32_BE(ctx->state[7], output, 28); |
372 | 0 | } |
373 | |
|
374 | 0 | return 0; |
375 | 0 | } |
376 | | |
377 | | #if !defined(MBEDTLS_DEPRECATED_REMOVED) |
378 | | void mbedtls_sha256_finish(mbedtls_sha256_context *ctx, |
379 | | unsigned char output[32]) |
380 | 0 | { |
381 | 0 | mbedtls_sha256_finish_ret(ctx, output); |
382 | 0 | } |
383 | | #endif |
384 | | |
385 | | #endif /* !MBEDTLS_SHA256_ALT */ |
386 | | |
387 | | /* |
388 | | * output = SHA-256( input buffer ) |
389 | | */ |
390 | | int mbedtls_sha256_ret(const unsigned char *input, |
391 | | size_t ilen, |
392 | | unsigned char output[32], |
393 | | int is224) |
394 | 0 | { |
395 | 0 | int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
396 | 0 | mbedtls_sha256_context ctx; |
397 | |
|
398 | 0 | SHA256_VALIDATE_RET(is224 == 0 || is224 == 1); |
399 | 0 | SHA256_VALIDATE_RET(ilen == 0 || input != NULL); |
400 | 0 | SHA256_VALIDATE_RET((unsigned char *) output != NULL); |
401 | |
|
402 | 0 | mbedtls_sha256_init(&ctx); |
403 | |
|
404 | 0 | if ((ret = mbedtls_sha256_starts_ret(&ctx, is224)) != 0) { |
405 | 0 | goto exit; |
406 | 0 | } |
407 | | |
408 | 0 | if ((ret = mbedtls_sha256_update_ret(&ctx, input, ilen)) != 0) { |
409 | 0 | goto exit; |
410 | 0 | } |
411 | | |
412 | 0 | if ((ret = mbedtls_sha256_finish_ret(&ctx, output)) != 0) { |
413 | 0 | goto exit; |
414 | 0 | } |
415 | | |
416 | 0 | exit: |
417 | 0 | mbedtls_sha256_free(&ctx); |
418 | |
|
419 | 0 | return ret; |
420 | 0 | } |
421 | | |
422 | | #if !defined(MBEDTLS_DEPRECATED_REMOVED) |
423 | | void mbedtls_sha256(const unsigned char *input, |
424 | | size_t ilen, |
425 | | unsigned char output[32], |
426 | | int is224) |
427 | 0 | { |
428 | 0 | mbedtls_sha256_ret(input, ilen, output, is224); |
429 | 0 | } |
430 | | #endif |
431 | | |
432 | | #if defined(MBEDTLS_SELF_TEST) |
433 | | /* |
434 | | * FIPS-180-2 test vectors |
435 | | */ |
436 | | static const unsigned char sha256_test_buf[3][57] = |
437 | | { |
438 | | { "abc" }, |
439 | | { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" }, |
440 | | { "" } |
441 | | }; |
442 | | |
443 | | static const size_t sha256_test_buflen[3] = |
444 | | { |
445 | | 3, 56, 1000 |
446 | | }; |
447 | | |
448 | | static const unsigned char sha256_test_sum[6][32] = |
449 | | { |
450 | | /* |
451 | | * SHA-224 test vectors |
452 | | */ |
453 | | { 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22, |
454 | | 0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3, |
455 | | 0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7, |
456 | | 0xE3, 0x6C, 0x9D, 0xA7 }, |
457 | | { 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC, |
458 | | 0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50, |
459 | | 0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19, |
460 | | 0x52, 0x52, 0x25, 0x25 }, |
461 | | { 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8, |
462 | | 0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B, |
463 | | 0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE, |
464 | | 0x4E, 0xE7, 0xAD, 0x67 }, |
465 | | |
466 | | /* |
467 | | * SHA-256 test vectors |
468 | | */ |
469 | | { 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA, |
470 | | 0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23, |
471 | | 0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C, |
472 | | 0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD }, |
473 | | { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8, |
474 | | 0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39, |
475 | | 0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67, |
476 | | 0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 }, |
477 | | { 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92, |
478 | | 0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67, |
479 | | 0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E, |
480 | | 0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 } |
481 | | }; |
482 | | |
483 | | /* |
484 | | * Checkup routine |
485 | | */ |
486 | | int mbedtls_sha256_self_test(int verbose) |
487 | 0 | { |
488 | 0 | int i, j, k, buflen, ret = 0; |
489 | 0 | unsigned char *buf; |
490 | 0 | unsigned char sha256sum[32]; |
491 | 0 | mbedtls_sha256_context ctx; |
492 | |
|
493 | 0 | buf = mbedtls_calloc(1024, sizeof(unsigned char)); |
494 | 0 | if (NULL == buf) { |
495 | 0 | if (verbose != 0) { |
496 | 0 | mbedtls_printf("Buffer allocation failed\n"); |
497 | 0 | } |
498 | |
|
499 | 0 | return 1; |
500 | 0 | } |
501 | | |
502 | 0 | mbedtls_sha256_init(&ctx); |
503 | |
|
504 | 0 | for (i = 0; i < 6; i++) { |
505 | 0 | j = i % 3; |
506 | 0 | k = i < 3; |
507 | |
|
508 | 0 | if (verbose != 0) { |
509 | 0 | mbedtls_printf(" SHA-%d test #%d: ", 256 - k * 32, j + 1); |
510 | 0 | } |
511 | |
|
512 | 0 | if ((ret = mbedtls_sha256_starts_ret(&ctx, k)) != 0) { |
513 | 0 | goto fail; |
514 | 0 | } |
515 | | |
516 | 0 | if (j == 2) { |
517 | 0 | memset(buf, 'a', buflen = 1000); |
518 | |
|
519 | 0 | for (j = 0; j < 1000; j++) { |
520 | 0 | ret = mbedtls_sha256_update_ret(&ctx, buf, buflen); |
521 | 0 | if (ret != 0) { |
522 | 0 | goto fail; |
523 | 0 | } |
524 | 0 | } |
525 | |
|
526 | 0 | } else { |
527 | 0 | ret = mbedtls_sha256_update_ret(&ctx, sha256_test_buf[j], |
528 | 0 | sha256_test_buflen[j]); |
529 | 0 | if (ret != 0) { |
530 | 0 | goto fail; |
531 | 0 | } |
532 | 0 | } |
533 | | |
534 | 0 | if ((ret = mbedtls_sha256_finish_ret(&ctx, sha256sum)) != 0) { |
535 | 0 | goto fail; |
536 | 0 | } |
537 | | |
538 | | |
539 | 0 | if (memcmp(sha256sum, sha256_test_sum[i], 32 - k * 4) != 0) { |
540 | 0 | ret = 1; |
541 | 0 | goto fail; |
542 | 0 | } |
543 | | |
544 | 0 | if (verbose != 0) { |
545 | 0 | mbedtls_printf("passed\n"); |
546 | 0 | } |
547 | 0 | } |
548 | | |
549 | 0 | if (verbose != 0) { |
550 | 0 | mbedtls_printf("\n"); |
551 | 0 | } |
552 | |
|
553 | 0 | goto exit; |
554 | | |
555 | 0 | fail: |
556 | 0 | if (verbose != 0) { |
557 | 0 | mbedtls_printf("failed\n"); |
558 | 0 | } |
559 | |
|
560 | 0 | exit: |
561 | 0 | mbedtls_sha256_free(&ctx); |
562 | 0 | mbedtls_free(buf); |
563 | |
|
564 | 0 | return ret; |
565 | 0 | } |
566 | | |
567 | | #endif /* MBEDTLS_SELF_TEST */ |
568 | | |
569 | | #endif /* MBEDTLS_SHA256_C */ |