diff options
Diffstat (limited to 'src/lib/libcrypto/rand/rand_lib.c')
-rw-r--r-- | src/lib/libcrypto/rand/rand_lib.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/src/lib/libcrypto/rand/rand_lib.c b/src/lib/libcrypto/rand/rand_lib.c index 5ac0e14caf..243a87ddfb 100644 --- a/src/lib/libcrypto/rand/rand_lib.c +++ b/src/lib/libcrypto/rand/rand_lib.c | |||
@@ -65,11 +65,6 @@ | |||
65 | #include <openssl/engine.h> | 65 | #include <openssl/engine.h> |
66 | #endif | 66 | #endif |
67 | 67 | ||
68 | #ifdef OPENSSL_FIPS | ||
69 | #include <openssl/fips.h> | ||
70 | #include <openssl/fips_rand.h> | ||
71 | #endif | ||
72 | |||
73 | #ifndef OPENSSL_NO_ENGINE | 68 | #ifndef OPENSSL_NO_ENGINE |
74 | /* non-NULL if default_RAND_meth is ENGINE-provided */ | 69 | /* non-NULL if default_RAND_meth is ENGINE-provided */ |
75 | static ENGINE *funct_ref =NULL; | 70 | static ENGINE *funct_ref =NULL; |
@@ -180,127 +175,3 @@ int RAND_status(void) | |||
180 | return meth->status(); | 175 | return meth->status(); |
181 | return 0; | 176 | return 0; |
182 | } | 177 | } |
183 | |||
184 | #ifdef OPENSSL_FIPS | ||
185 | |||
186 | /* FIPS DRBG initialisation code. This sets up the DRBG for use by the | ||
187 | * rest of OpenSSL. | ||
188 | */ | ||
189 | |||
190 | /* Entropy gatherer: use standard OpenSSL PRNG to seed (this will gather | ||
191 | * entropy internally through RAND_poll(). | ||
192 | */ | ||
193 | |||
194 | static size_t drbg_get_entropy(DRBG_CTX *ctx, unsigned char **pout, | ||
195 | int entropy, size_t min_len, size_t max_len) | ||
196 | { | ||
197 | /* Round up request to multiple of block size */ | ||
198 | min_len = ((min_len + 19) / 20) * 20; | ||
199 | *pout = OPENSSL_malloc(min_len); | ||
200 | if (!*pout) | ||
201 | return 0; | ||
202 | if (RAND_SSLeay()->bytes(*pout, min_len) <= 0) | ||
203 | { | ||
204 | OPENSSL_free(*pout); | ||
205 | *pout = NULL; | ||
206 | return 0; | ||
207 | } | ||
208 | return min_len; | ||
209 | } | ||
210 | |||
211 | static void drbg_free_entropy(DRBG_CTX *ctx, unsigned char *out, size_t olen) | ||
212 | { | ||
213 | if (out) | ||
214 | { | ||
215 | OPENSSL_cleanse(out, olen); | ||
216 | OPENSSL_free(out); | ||
217 | } | ||
218 | } | ||
219 | |||
220 | /* Set "additional input" when generating random data. This uses the | ||
221 | * current PID, a time value and a counter. | ||
222 | */ | ||
223 | |||
224 | static size_t drbg_get_adin(DRBG_CTX *ctx, unsigned char **pout) | ||
225 | { | ||
226 | /* Use of static variables is OK as this happens under a lock */ | ||
227 | static unsigned char buf[16]; | ||
228 | static unsigned long counter; | ||
229 | FIPS_get_timevec(buf, &counter); | ||
230 | *pout = buf; | ||
231 | return sizeof(buf); | ||
232 | } | ||
233 | |||
234 | /* RAND_add() and RAND_seed() pass through to OpenSSL PRNG so it is | ||
235 | * correctly seeded by RAND_poll(). | ||
236 | */ | ||
237 | |||
238 | static int drbg_rand_add(DRBG_CTX *ctx, const void *in, int inlen, | ||
239 | double entropy) | ||
240 | { | ||
241 | RAND_SSLeay()->add(in, inlen, entropy); | ||
242 | return 1; | ||
243 | } | ||
244 | |||
245 | static int drbg_rand_seed(DRBG_CTX *ctx, const void *in, int inlen) | ||
246 | { | ||
247 | RAND_SSLeay()->seed(in, inlen); | ||
248 | return 1; | ||
249 | } | ||
250 | |||
251 | #ifndef OPENSSL_DRBG_DEFAULT_TYPE | ||
252 | #define OPENSSL_DRBG_DEFAULT_TYPE NID_aes_256_ctr | ||
253 | #endif | ||
254 | #ifndef OPENSSL_DRBG_DEFAULT_FLAGS | ||
255 | #define OPENSSL_DRBG_DEFAULT_FLAGS DRBG_FLAG_CTR_USE_DF | ||
256 | #endif | ||
257 | |||
258 | static int fips_drbg_type = OPENSSL_DRBG_DEFAULT_TYPE; | ||
259 | static int fips_drbg_flags = OPENSSL_DRBG_DEFAULT_FLAGS; | ||
260 | |||
261 | void RAND_set_fips_drbg_type(int type, int flags) | ||
262 | { | ||
263 | fips_drbg_type = type; | ||
264 | fips_drbg_flags = flags; | ||
265 | } | ||
266 | |||
267 | int RAND_init_fips(void) | ||
268 | { | ||
269 | DRBG_CTX *dctx; | ||
270 | size_t plen; | ||
271 | unsigned char pers[32], *p; | ||
272 | #ifndef OPENSSL_ALLOW_DUAL_EC_DRBG | ||
273 | if (fips_drbg_type >> 16) | ||
274 | { | ||
275 | RANDerr(RAND_F_RAND_INIT_FIPS, RAND_R_DUAL_EC_DRBG_DISABLED); | ||
276 | return 0; | ||
277 | } | ||
278 | #endif | ||
279 | |||
280 | dctx = FIPS_get_default_drbg(); | ||
281 | if (FIPS_drbg_init(dctx, fips_drbg_type, fips_drbg_flags) <= 0) | ||
282 | { | ||
283 | RANDerr(RAND_F_RAND_INIT_FIPS, RAND_R_ERROR_INITIALISING_DRBG); | ||
284 | return 0; | ||
285 | } | ||
286 | |||
287 | FIPS_drbg_set_callbacks(dctx, | ||
288 | drbg_get_entropy, drbg_free_entropy, 20, | ||
289 | drbg_get_entropy, drbg_free_entropy); | ||
290 | FIPS_drbg_set_rand_callbacks(dctx, drbg_get_adin, 0, | ||
291 | drbg_rand_seed, drbg_rand_add); | ||
292 | /* Personalisation string: a string followed by date time vector */ | ||
293 | strcpy((char *)pers, "OpenSSL DRBG2.0"); | ||
294 | plen = drbg_get_adin(dctx, &p); | ||
295 | memcpy(pers + 16, p, plen); | ||
296 | |||
297 | if (FIPS_drbg_instantiate(dctx, pers, sizeof(pers)) <= 0) | ||
298 | { | ||
299 | RANDerr(RAND_F_RAND_INIT_FIPS, RAND_R_ERROR_INSTANTIATING_DRBG); | ||
300 | return 0; | ||
301 | } | ||
302 | FIPS_rand_set_method(FIPS_drbg_method()); | ||
303 | return 1; | ||
304 | } | ||
305 | |||
306 | #endif | ||