Lines Matching +full:fips +full:- +full:140 +full:- +full:2
3 * Based on NIST Recommended DRBG from NIST SP800-90A with the following
5 * * CTR DRBG with DF with AES-128, AES-192, AES-256 cores
6 * * Hash DRBG with DF with SHA-1, SHA-256, SHA-384, SHA-512 cores
7 * * HMAC DRBG with DF with SHA-1, SHA-256, SHA-384, SHA-512 cores
18 * 2. Redistributions in binary form must reproduce the above copyright
29 * the restrictions contained in a BSD-style copyright.)
46 * The SP 800-90A DRBG allows the user to specify a personalization string
52 * ---------------------------------
63 * -------------------------------------------------------
68 * char personalization[11] = "some-string";
72 * // The reset completely re-initializes the DRBG with the provided
80 * ---------------------------------------------------------------------
84 * char addtl_string[11] = "some-string";
96 * -------------------------------------------------------------
202 * Return strength of DRBG according to SP800-90A section 8.4
224 * FIPS 140-2 continuous self test for the noise source
232 * drbg->drbg_mutex must have been taken.
239 * -EAGAIN on when the CTRNG is not yet primed
245 unsigned short entropylen = drbg_sec_strength(drbg->core->flags); in drbg_fips_continuous_test()
252 if (list_empty(&drbg->test_data.list)) in drbg_fips_continuous_test()
254 /* only perform test in FIPS mode */ in drbg_fips_continuous_test()
258 if (!drbg->fips_primed) { in drbg_fips_continuous_test()
259 /* Priming of FIPS test */ in drbg_fips_continuous_test()
260 memcpy(drbg->prev, entropy, entropylen); in drbg_fips_continuous_test()
261 drbg->fips_primed = true; in drbg_fips_continuous_test()
263 return -EAGAIN; in drbg_fips_continuous_test()
265 ret = memcmp(drbg->prev, entropy, entropylen); in drbg_fips_continuous_test()
268 memcpy(drbg->prev, entropy, entropylen); in drbg_fips_continuous_test()
276 * The byte representation is big-endian
279 * @buf buffer holding the converted integer -- caller must ensure that
290 conversion->conv = cpu_to_be32(val); in drbg_cpu_to_be32()
330 /* 10.4.3 step 2 / 4 */ in drbg_ctr_bcc()
333 const unsigned char *pos = curr->buf; in drbg_ctr_bcc()
334 size_t len = curr->len; in drbg_ctr_bcc()
347 len--; in drbg_ctr_bcc()
363 * start: drbg->scratchpad
366 * blocklen-wise. Now, when the statelen is not a multiple
371 * start: drbg->scratchpad +
396 /* Derivation Function for CTR DRBG as defined in 10.4.2 */
401 int ret = -EFAULT; in drbg_ctr_df()
411 /* 10.4.2 step 7 */ in drbg_ctr_df()
413 /* 10.4.2 step 8 */ in drbg_ctr_df()
427 /* 10.4.2 step 1 is implicit as we work byte-wise */ in drbg_ctr_df()
429 /* 10.4.2 step 2 */ in drbg_ctr_df()
431 return -EINVAL; in drbg_ctr_df()
433 /* 10.4.2 step 2 -- calculate the entire length of all input data */ in drbg_ctr_df()
435 inputlen += seed->len; in drbg_ctr_df()
438 /* 10.4.2 step 3 */ in drbg_ctr_df()
441 /* 10.4.2 step 5: length is L_N, input_string, one byte, padding */ in drbg_ctr_df()
445 padlen = drbg_blocklen(drbg) - padlen; in drbg_ctr_df()
454 /* 10.4.2 step 4 -- first fill the linked list and then order it */ in drbg_ctr_df()
463 /* 10.4.2 step 9 */ in drbg_ctr_df()
466 * 10.4.2 step 9.1 - the padding is implicit as the buffer in drbg_ctr_df()
467 * holds zeros after allocation -- even the increment of i in drbg_ctr_df()
471 /* 10.4.2 step 9.2 -- BCC and concatenation with temp */ in drbg_ctr_df()
475 /* 10.4.2 step 9.3 */ in drbg_ctr_df()
480 /* 10.4.2 step 11 */ in drbg_ctr_df()
484 /* 10.4.2 step 12: overwriting of outval is implemented in next step */ in drbg_ctr_df()
486 /* 10.4.2 step 13 */ in drbg_ctr_df()
491 * 10.4.2 step 13.1: the truncation of the key length is in drbg_ctr_df()
499 (bytes_to_return - generated_len)) ? in drbg_ctr_df()
501 (bytes_to_return - generated_len); in drbg_ctr_df()
502 /* 10.4.2 step 13.2 and 14 */ in drbg_ctr_df()
523 * 2 => first invocation from drbg_ctr_update when addtl is present. In
534 int ret = -EFAULT; in drbg_ctr_update()
536 unsigned char *temp = drbg->scratchpad; in drbg_ctr_update()
537 unsigned char *df_data = drbg->scratchpad + drbg_statelen(drbg) + in drbg_ctr_update()
547 * but SP800-90A requires that the counter is incremented before in drbg_ctr_update()
551 crypto_inc(drbg->V, drbg_blocklen(drbg)); in drbg_ctr_update()
553 ret = crypto_skcipher_setkey(drbg->ctr_handle, drbg->C, in drbg_ctr_update()
559 /* 10.2.1.3.2 step 2 and 10.2.1.4.2 step 2 */ in drbg_ctr_update()
572 ret = crypto_skcipher_setkey(drbg->ctr_handle, temp, in drbg_ctr_update()
577 memcpy(drbg->V, temp + drbg_keylen(drbg), drbg_blocklen(drbg)); in drbg_ctr_update()
579 crypto_inc(drbg->V, drbg_blocklen(drbg)); in drbg_ctr_update()
584 if (2 != reseed) in drbg_ctr_update()
593 /* Generate function of CTR DRBG as defined in 10.2.1.5.2 */
601 /* 10.2.1.5.2 step 2 */ in drbg_ctr_generate()
603 ret = drbg_ctr_update(drbg, addtl, 2); in drbg_ctr_generate()
608 /* 10.2.1.5.2 step 4.1 */ in drbg_ctr_generate()
613 /* 10.2.1.5.2 step 6 */ in drbg_ctr_generate()
657 int ret = -EFAULT; in drbg_hmac_update()
664 /* 10.1.2.3 step 2 -- memset(0) of C is implicit with kzalloc */ in drbg_hmac_update()
665 memset(drbg->V, 1, drbg_statelen(drbg)); in drbg_hmac_update()
666 drbg_kcapi_hmacsetkey(drbg, drbg->C); in drbg_hmac_update()
669 drbg_string_fill(&seed1, drbg->V, drbg_statelen(drbg)); in drbg_hmac_update()
678 drbg_string_fill(&vdata, drbg->V, drbg_statelen(drbg)); in drbg_hmac_update()
680 for (i = 2; 0 < i; i--) { in drbg_hmac_update()
685 /* 10.1.2.2 step 1 and 4 -- concatenation and HMAC for key */ in drbg_hmac_update()
687 ret = drbg_kcapi_hash(drbg, drbg->C, &seedlist); in drbg_hmac_update()
690 drbg_kcapi_hmacsetkey(drbg, drbg->C); in drbg_hmac_update()
692 /* 10.1.2.2 step 2 and 5 -- HMAC for V */ in drbg_hmac_update()
693 ret = drbg_kcapi_hash(drbg, drbg->V, &vdatalist); in drbg_hmac_update()
716 /* 10.1.2.5 step 2 */ in drbg_hmac_generate()
723 drbg_string_fill(&data, drbg->V, drbg_statelen(drbg)); in drbg_hmac_generate()
728 ret = drbg_kcapi_hash(drbg, drbg->V, &datalist); in drbg_hmac_generate()
731 outlen = (drbg_blocklen(drbg) < (buflen - len)) ? in drbg_hmac_generate()
732 drbg_blocklen(drbg) : (buflen - len); in drbg_hmac_generate()
735 memcpy(buf + len, drbg->V, outlen); in drbg_hmac_generate()
788 dstptr = dst + (dstlen-1); in drbg_add_buf()
789 addptr = add + (addlen-1); in drbg_add_buf()
794 len--; dstptr--; addptr--; in drbg_add_buf()
796 len = dstlen - addlen; in drbg_add_buf()
801 len--; dstptr--; in drbg_add_buf()
809 * start: drbg->scratchpad
812 * start: drbg->scratchpad + drbg_statelen(drbg)
828 unsigned char *tmp = drbg->scratchpad + drbg_statelen(drbg); in drbg_hash_df()
835 /* 10.4.1 step 4.1 -- concatenation of data for input into hash */ in drbg_hash_df()
848 blocklen = (drbg_blocklen(drbg) < (outlen - len)) ? in drbg_hash_df()
849 drbg_blocklen(drbg) : (outlen - len); in drbg_hash_df()
867 unsigned char *V = drbg->scratchpad; in drbg_hash_update()
871 return -EINVAL; in drbg_hash_update()
875 memcpy(V, drbg->V, drbg_statelen(drbg)); in drbg_hash_update()
883 /* 10.1.1.2 / 10.1.1.3 step 2 and 3 */ in drbg_hash_update()
884 ret = drbg_hash_df(drbg, drbg->V, drbg_statelen(drbg), &datalist); in drbg_hash_update()
892 drbg_string_fill(&data2, drbg->V, drbg_statelen(drbg)); in drbg_hash_update()
895 ret = drbg_hash_df(drbg, drbg->C, drbg_statelen(drbg), &datalist2); in drbg_hash_update()
898 memset(drbg->scratchpad, 0, drbg_statelen(drbg)); in drbg_hash_update()
911 /* 10.1.1.4 step 2 */ in drbg_hash_process_addtl()
915 /* 10.1.1.4 step 2a */ in drbg_hash_process_addtl()
917 drbg_string_fill(&data2, drbg->V, drbg_statelen(drbg)); in drbg_hash_process_addtl()
921 ret = drbg_kcapi_hash(drbg, drbg->scratchpad, &datalist); in drbg_hash_process_addtl()
925 /* 10.1.1.4 step 2b */ in drbg_hash_process_addtl()
926 drbg_add_buf(drbg->V, drbg_statelen(drbg), in drbg_hash_process_addtl()
927 drbg->scratchpad, drbg_blocklen(drbg)); in drbg_hash_process_addtl()
930 memset(drbg->scratchpad, 0, drbg_blocklen(drbg)); in drbg_hash_process_addtl()
941 unsigned char *src = drbg->scratchpad; in drbg_hash_hashgen()
942 unsigned char *dst = drbg->scratchpad + drbg_statelen(drbg); in drbg_hash_hashgen()
946 /* 10.1.1.4 step hashgen 2 */ in drbg_hash_hashgen()
947 memcpy(src, drbg->V, drbg_statelen(drbg)); in drbg_hash_hashgen()
959 outlen = (drbg_blocklen(drbg) < (buflen - len)) ? in drbg_hash_hashgen()
960 drbg_blocklen(drbg) : (buflen - len); in drbg_hash_hashgen()
970 memset(drbg->scratchpad, 0, in drbg_hash_hashgen()
990 /* 10.1.1.4 step 2 */ in drbg_hash_generate()
1001 drbg_string_fill(&data2, drbg->V, drbg_statelen(drbg)); in drbg_hash_generate()
1003 ret = drbg_kcapi_hash(drbg, drbg->scratchpad, &datalist); in drbg_hash_generate()
1010 drbg_add_buf(drbg->V, drbg_statelen(drbg), in drbg_hash_generate()
1011 drbg->scratchpad, drbg_blocklen(drbg)); in drbg_hash_generate()
1012 drbg_add_buf(drbg->V, drbg_statelen(drbg), in drbg_hash_generate()
1013 drbg->C, drbg_statelen(drbg)); in drbg_hash_generate()
1014 u.req_int = cpu_to_be64(drbg->reseed_ctr); in drbg_hash_generate()
1015 drbg_add_buf(drbg->V, drbg_statelen(drbg), u.req, 8); in drbg_hash_generate()
1018 memset(drbg->scratchpad, 0, drbg_blocklen(drbg)); in drbg_hash_generate()
1041 int ret = drbg->d_ops->update(drbg, seed, reseed); in __drbg_seed()
1046 drbg->seeded = new_seed_state; in __drbg_seed()
1048 drbg->reseed_ctr = 1; in __drbg_seed()
1050 switch (drbg->seeded) { in __drbg_seed()
1059 drbg->reseed_threshold = 50; in __drbg_seed()
1067 drbg->reseed_threshold = drbg_max_requests(drbg); in __drbg_seed()
1083 if (ret && ret != -EAGAIN) in drbg_get_random_bytes()
1094 unsigned int entropylen = drbg_sec_strength(drbg->core->flags); in drbg_seed_from_random()
1130 unsigned char entropy[((32 + 16) * 2)]; in drbg_seed()
1131 unsigned int entropylen = drbg_sec_strength(drbg->core->flags); in drbg_seed()
1137 if (pers && pers->len > (drbg_max_addtl(drbg))) { in drbg_seed()
1139 pers->len); in drbg_seed()
1140 return -EINVAL; in drbg_seed()
1143 if (list_empty(&drbg->test_data.list)) { in drbg_seed()
1144 drbg_string_fill(&data1, drbg->test_data.buf, in drbg_seed()
1145 drbg->test_data.len); in drbg_seed()
1151 * to the entropy. A nonce must be at least 1/2 of the security in drbg_seed()
1152 * strength of the DRBG in size. Thus, entropy + nonce is 3/2 in drbg_seed()
1158 entropylen = ((entropylen + 1) / 2) * 3; in drbg_seed()
1159 BUG_ON((entropylen * 2) > sizeof(entropy)); in drbg_seed()
1161 /* Get seed from in-kernel /dev/urandom */ in drbg_seed()
1169 if (!drbg->jent) { in drbg_seed()
1175 ret = crypto_rng_get_bytes(drbg->jent, in drbg_seed()
1188 * SP800-90A allowing us to treat the in drbg_seed()
1195 if (!reseed || ret != -EAGAIN) in drbg_seed()
1199 drbg_string_fill(&data1, entropy, entropylen * 2); in drbg_seed()
1201 entropylen * 2); in drbg_seed()
1211 if (pers && pers->buf && 0 < pers->len) { in drbg_seed()
1212 list_add_tail(&pers->list, &seedlist); in drbg_seed()
1217 memset(drbg->V, 0, drbg_statelen(drbg)); in drbg_seed()
1218 memset(drbg->C, 0, drbg_statelen(drbg)); in drbg_seed()
1224 memzero_explicit(entropy, entropylen * 2); in drbg_seed()
1234 kfree_sensitive(drbg->Vbuf); in drbg_dealloc_state()
1235 drbg->Vbuf = NULL; in drbg_dealloc_state()
1236 drbg->V = NULL; in drbg_dealloc_state()
1237 kfree_sensitive(drbg->Cbuf); in drbg_dealloc_state()
1238 drbg->Cbuf = NULL; in drbg_dealloc_state()
1239 drbg->C = NULL; in drbg_dealloc_state()
1240 kfree_sensitive(drbg->scratchpadbuf); in drbg_dealloc_state()
1241 drbg->scratchpadbuf = NULL; in drbg_dealloc_state()
1242 drbg->reseed_ctr = 0; in drbg_dealloc_state()
1243 drbg->d_ops = NULL; in drbg_dealloc_state()
1244 drbg->core = NULL; in drbg_dealloc_state()
1246 kfree_sensitive(drbg->prev); in drbg_dealloc_state()
1247 drbg->prev = NULL; in drbg_dealloc_state()
1248 drbg->fips_primed = false; in drbg_dealloc_state()
1253 * Allocate all sub-structures for a DRBG state.
1258 int ret = -ENOMEM; in drbg_alloc_state()
1261 switch (drbg->core->flags & DRBG_TYPE_MASK) { in drbg_alloc_state()
1264 drbg->d_ops = &drbg_hmac_ops; in drbg_alloc_state()
1269 drbg->d_ops = &drbg_hash_ops; in drbg_alloc_state()
1274 drbg->d_ops = &drbg_ctr_ops; in drbg_alloc_state()
1278 ret = -EOPNOTSUPP; in drbg_alloc_state()
1282 ret = drbg->d_ops->crypto_init(drbg); in drbg_alloc_state()
1286 drbg->Vbuf = kmalloc(drbg_statelen(drbg) + ret, GFP_KERNEL); in drbg_alloc_state()
1287 if (!drbg->Vbuf) { in drbg_alloc_state()
1288 ret = -ENOMEM; in drbg_alloc_state()
1291 drbg->V = PTR_ALIGN(drbg->Vbuf, ret + 1); in drbg_alloc_state()
1292 drbg->Cbuf = kmalloc(drbg_statelen(drbg) + ret, GFP_KERNEL); in drbg_alloc_state()
1293 if (!drbg->Cbuf) { in drbg_alloc_state()
1294 ret = -ENOMEM; in drbg_alloc_state()
1297 drbg->C = PTR_ALIGN(drbg->Cbuf, ret + 1); in drbg_alloc_state()
1299 if (drbg->core->flags & DRBG_HMAC) in drbg_alloc_state()
1301 else if (drbg->core->flags & DRBG_CTR) in drbg_alloc_state()
1311 drbg->scratchpadbuf = kzalloc(sb_size + ret, GFP_KERNEL); in drbg_alloc_state()
1312 if (!drbg->scratchpadbuf) { in drbg_alloc_state()
1313 ret = -ENOMEM; in drbg_alloc_state()
1316 drbg->scratchpad = PTR_ALIGN(drbg->scratchpadbuf, ret + 1); in drbg_alloc_state()
1320 drbg->prev = kzalloc(drbg_sec_strength(drbg->core->flags), in drbg_alloc_state()
1322 if (!drbg->prev) { in drbg_alloc_state()
1323 ret = -ENOMEM; in drbg_alloc_state()
1326 drbg->fips_primed = false; in drbg_alloc_state()
1332 drbg->d_ops->crypto_fini(drbg); in drbg_alloc_state()
1343 * DRBG generate function as required by SP800-90A - this function
1347 * @buf Buffer where to store the random numbers -- the buffer must already
1348 * be pre-allocated by caller
1349 * @buflen Length of output buffer - this value defines the number of random
1351 * @addtl Additional input that is mixed into state, may be NULL -- note
1353 * as defined in SP800-90A. The additional input is mixed into
1365 if (!drbg->core) { in drbg_generate()
1367 return -EINVAL; in drbg_generate()
1371 return -EINVAL; in drbg_generate()
1373 if (addtl && NULL == addtl->buf && 0 < addtl->len) { in drbg_generate()
1375 return -EINVAL; in drbg_generate()
1378 /* 9.3.1 step 2 */ in drbg_generate()
1379 len = -EINVAL; in drbg_generate()
1389 if (addtl && addtl->len > (drbg_max_addtl(drbg))) { in drbg_generate()
1391 addtl->len); in drbg_generate()
1397 * 9.3.1 step 6 and 9 supplemented by 9.3.2 step c is implemented in drbg_generate()
1400 if (drbg->reseed_threshold < drbg->reseed_ctr) in drbg_generate()
1401 drbg->seeded = DRBG_SEED_STATE_UNSEEDED; in drbg_generate()
1403 if (drbg->pr || drbg->seeded == DRBG_SEED_STATE_UNSEEDED) { in drbg_generate()
1406 drbg->pr ? "true" : "false", in drbg_generate()
1407 (drbg->seeded == DRBG_SEED_STATE_FULL ? in drbg_generate()
1416 drbg->seeded == DRBG_SEED_STATE_PARTIAL) { in drbg_generate()
1422 if (addtl && 0 < addtl->len) in drbg_generate()
1423 list_add_tail(&addtl->list, &addtllist); in drbg_generate()
1425 len = drbg->d_ops->generate(drbg, buf, buflen, &addtllist); in drbg_generate()
1427 /* 10.1.1.4 step 6, 10.1.2.5 step 7, 10.2.1.5.2 step 7 */ in drbg_generate()
1428 drbg->reseed_ctr++; in drbg_generate()
1433 * Section 11.3.3 requires to re-perform self tests after some in drbg_generate()
1448 if (drbg->reseed_ctr && !(drbg->reseed_ctr % 4096)) { in drbg_generate()
1451 if (drbg->core->flags & DRBG_HMAC) in drbg_generate()
1454 else if (drbg->core->flags & DRBG_CTR) in drbg_generate()
1488 * Return codes: see drbg_generate -- if one drbg_generate request fails,
1500 slice = ((buflen - len) / drbg_max_request_bytes(drbg)); in drbg_generate_long()
1501 chunk = slice ? drbg_max_request_bytes(drbg) : (buflen - len); in drbg_generate_long()
1502 mutex_lock(&drbg->drbg_mutex); in drbg_generate_long()
1504 mutex_unlock(&drbg->drbg_mutex); in drbg_generate_long()
1515 if (list_empty(&drbg->test_data.list)) in drbg_prepare_hrng()
1518 drbg->jent = crypto_alloc_rng("jitterentropy_rng", 0, 0); in drbg_prepare_hrng()
1524 * DRBG instantiation function as required by SP800-90A - this function
1526 * checks required by SP800-90A
1528 * @drbg memory of state -- if NULL, new memory is allocated
1529 * @pers Personalization string that is mixed into state, may be NULL -- note
1531 * as defined in SP800-90A. The additional input is mixed into
1548 mutex_lock(&drbg->drbg_mutex); in drbg_instantiate()
1553 * 9.1 step 2 is implicit as caller can select prediction resistance in drbg_instantiate()
1554 * and the flag is copied into drbg->flags -- in drbg_instantiate()
1560 if (!drbg->core) { in drbg_instantiate()
1561 drbg->core = &drbg_cores[coreref]; in drbg_instantiate()
1562 drbg->pr = pr; in drbg_instantiate()
1563 drbg->seeded = DRBG_SEED_STATE_UNSEEDED; in drbg_instantiate()
1564 drbg->reseed_threshold = drbg_max_requests(drbg); in drbg_instantiate()
1574 if (IS_ERR(drbg->jent)) { in drbg_instantiate()
1575 ret = PTR_ERR(drbg->jent); in drbg_instantiate()
1576 drbg->jent = NULL; in drbg_instantiate()
1577 if (fips_enabled || ret != -ENOENT) in drbg_instantiate()
1590 mutex_unlock(&drbg->drbg_mutex); in drbg_instantiate()
1594 mutex_unlock(&drbg->drbg_mutex); in drbg_instantiate()
1598 mutex_unlock(&drbg->drbg_mutex); in drbg_instantiate()
1604 * DRBG uninstantiate function as required by SP800-90A - this function
1614 if (!IS_ERR_OR_NULL(drbg->jent)) in drbg_uninstantiate()
1615 crypto_free_rng(drbg->jent); in drbg_uninstantiate()
1616 drbg->jent = NULL; in drbg_uninstantiate()
1618 if (drbg->d_ops) in drbg_uninstantiate()
1619 drbg->d_ops->crypto_fini(drbg); in drbg_uninstantiate()
1621 /* no scrubbing of test_data -- this shall survive an uninstantiate */ in drbg_uninstantiate()
1637 mutex_lock(&drbg->drbg_mutex); in drbg_kcapi_set_entropy()
1638 drbg_string_fill(&drbg->test_data, data, len); in drbg_kcapi_set_entropy()
1639 mutex_unlock(&drbg->drbg_mutex); in drbg_kcapi_set_entropy()
1657 tfm = crypto_alloc_shash(drbg->core->backend_cra_name, 0, 0); in drbg_init_hash_kernel()
1660 drbg->core->backend_cra_name); in drbg_init_hash_kernel()
1668 return -ENOMEM; in drbg_init_hash_kernel()
1671 sdesc->shash.tfm = tfm; in drbg_init_hash_kernel()
1672 drbg->priv_data = sdesc; in drbg_init_hash_kernel()
1679 struct sdesc *sdesc = (struct sdesc *)drbg->priv_data; in drbg_fini_hash_kernel()
1681 crypto_free_shash(sdesc->shash.tfm); in drbg_fini_hash_kernel()
1684 drbg->priv_data = NULL; in drbg_fini_hash_kernel()
1691 struct sdesc *sdesc = (struct sdesc *)drbg->priv_data; in drbg_kcapi_hmacsetkey()
1693 crypto_shash_setkey(sdesc->shash.tfm, key, drbg_statelen(drbg)); in drbg_kcapi_hmacsetkey()
1699 struct sdesc *sdesc = (struct sdesc *)drbg->priv_data; in drbg_kcapi_hash()
1702 crypto_shash_init(&sdesc->shash); in drbg_kcapi_hash()
1704 crypto_shash_update(&sdesc->shash, input->buf, input->len); in drbg_kcapi_hash()
1705 return crypto_shash_final(&sdesc->shash, outval); in drbg_kcapi_hash()
1713 (struct crypto_cipher *)drbg->priv_data; in drbg_fini_sym_kernel()
1716 drbg->priv_data = NULL; in drbg_fini_sym_kernel()
1718 if (drbg->ctr_handle) in drbg_fini_sym_kernel()
1719 crypto_free_skcipher(drbg->ctr_handle); in drbg_fini_sym_kernel()
1720 drbg->ctr_handle = NULL; in drbg_fini_sym_kernel()
1722 if (drbg->ctr_req) in drbg_fini_sym_kernel()
1723 skcipher_request_free(drbg->ctr_req); in drbg_fini_sym_kernel()
1724 drbg->ctr_req = NULL; in drbg_fini_sym_kernel()
1726 kfree(drbg->outscratchpadbuf); in drbg_fini_sym_kernel()
1727 drbg->outscratchpadbuf = NULL; in drbg_fini_sym_kernel()
1740 tfm = crypto_alloc_cipher(drbg->core->backend_cra_name, 0, 0); in drbg_init_sym_kernel()
1743 drbg->core->backend_cra_name); in drbg_init_sym_kernel()
1747 drbg->priv_data = tfm; in drbg_init_sym_kernel()
1750 drbg->core->backend_cra_name) >= CRYPTO_MAX_ALG_NAME) { in drbg_init_sym_kernel()
1752 return -EINVAL; in drbg_init_sym_kernel()
1761 drbg->ctr_handle = sk_tfm; in drbg_init_sym_kernel()
1762 crypto_init_wait(&drbg->ctr_wait); in drbg_init_sym_kernel()
1768 return -ENOMEM; in drbg_init_sym_kernel()
1770 drbg->ctr_req = req; in drbg_init_sym_kernel()
1773 crypto_req_done, &drbg->ctr_wait); in drbg_init_sym_kernel()
1776 drbg->outscratchpadbuf = kmalloc(DRBG_OUTSCRATCHLEN + alignmask, in drbg_init_sym_kernel()
1778 if (!drbg->outscratchpadbuf) { in drbg_init_sym_kernel()
1780 return -ENOMEM; in drbg_init_sym_kernel()
1782 drbg->outscratchpad = (u8 *)PTR_ALIGN(drbg->outscratchpadbuf, in drbg_init_sym_kernel()
1785 sg_init_table(&drbg->sg_in, 1); in drbg_init_sym_kernel()
1786 sg_init_one(&drbg->sg_out, drbg->outscratchpad, DRBG_OUTSCRATCHLEN); in drbg_init_sym_kernel()
1795 (struct crypto_cipher *)drbg->priv_data; in drbg_kcapi_symsetkey()
1804 (struct crypto_cipher *)drbg->priv_data; in drbg_kcapi_sym()
1807 BUG_ON(in->len < drbg_blocklen(drbg)); in drbg_kcapi_sym()
1808 crypto_cipher_encrypt_one(tfm, outval, in->buf); in drbg_kcapi_sym()
1816 struct scatterlist *sg_in = &drbg->sg_in, *sg_out = &drbg->sg_out; in drbg_kcapi_sym_ctr()
1821 /* Use caller-provided input buffer */ in drbg_kcapi_sym_ctr()
1824 /* Use scratchpad for in-place operation */ in drbg_kcapi_sym_ctr()
1826 memset(drbg->outscratchpad, 0, scratchpad_use); in drbg_kcapi_sym_ctr()
1827 sg_set_buf(sg_in, drbg->outscratchpad, scratchpad_use); in drbg_kcapi_sym_ctr()
1834 skcipher_request_set_crypt(drbg->ctr_req, sg_in, sg_out, in drbg_kcapi_sym_ctr()
1835 cryptlen, drbg->V); in drbg_kcapi_sym_ctr()
1836 ret = crypto_wait_req(crypto_skcipher_encrypt(drbg->ctr_req), in drbg_kcapi_sym_ctr()
1837 &drbg->ctr_wait); in drbg_kcapi_sym_ctr()
1841 crypto_init_wait(&drbg->ctr_wait); in drbg_kcapi_sym_ctr()
1843 memcpy(outbuf, drbg->outscratchpad, cryptlen); in drbg_kcapi_sym_ctr()
1844 memzero_explicit(drbg->outscratchpad, cryptlen); in drbg_kcapi_sym_ctr()
1846 outlen -= cryptlen; in drbg_kcapi_sym_ctr()
1890 len = strlen(cra_driver_name) - start; in drbg_convert_tfm_core()
1904 mutex_init(&drbg->drbg_mutex); in drbg_kcapi_init()
1968 * Tests as defined in 11.3.2 in addition to the cipher tests: testing
1971 * Note: testing of failing seed source as defined in 11.3.2 is not applicable
1974 * Note 2: There is no sensible way of testing the reseed counter
1983 int ret = -EFAULT; in drbg_healthcheck_sanity()
1984 int rc = -EFAULT; in drbg_healthcheck_sanity()
1990 /* only perform test in FIPS mode */ in drbg_healthcheck_sanity()
2004 return -ENOMEM; in drbg_healthcheck_sanity()
2006 mutex_init(&drbg->drbg_mutex); in drbg_healthcheck_sanity()
2007 drbg->core = &drbg_cores[coreref]; in drbg_healthcheck_sanity()
2008 drbg->reseed_threshold = drbg_max_requests(drbg); in drbg_healthcheck_sanity()
2013 * string lengths -- in case the error handling does not succeed in drbg_healthcheck_sanity()
2054 memcpy(alg->base.cra_name, "stdrng", 6); in drbg_fill_array()
2056 memcpy(alg->base.cra_driver_name, "drbg_pr_", 8); in drbg_fill_array()
2059 memcpy(alg->base.cra_driver_name, "drbg_nopr_", 10); in drbg_fill_array()
2062 memcpy(alg->base.cra_driver_name + pos, core->cra_name, in drbg_fill_array()
2063 strlen(core->cra_name)); in drbg_fill_array()
2065 alg->base.cra_priority = priority; in drbg_fill_array()
2068 * If FIPS mode enabled, the selected DRBG shall have the in drbg_fill_array()
2073 alg->base.cra_priority += 200; in drbg_fill_array()
2075 alg->base.cra_ctxsize = sizeof(struct drbg_state); in drbg_fill_array()
2076 alg->base.cra_module = THIS_MODULE; in drbg_fill_array()
2077 alg->base.cra_init = drbg_kcapi_init; in drbg_fill_array()
2078 alg->base.cra_exit = drbg_kcapi_cleanup; in drbg_fill_array()
2079 alg->generate = drbg_kcapi_random; in drbg_fill_array()
2080 alg->seed = drbg_kcapi_seed; in drbg_fill_array()
2081 alg->set_ent = drbg_kcapi_set_entropy; in drbg_fill_array()
2082 alg->seedsize = 0; in drbg_fill_array()
2095 if (ARRAY_SIZE(drbg_cores) * 2 > ARRAY_SIZE(drbg_algs)) { in drbg_init()
2098 ARRAY_SIZE(drbg_cores) * 2, ARRAY_SIZE(drbg_algs)); in drbg_init()
2099 return -EFAULT; in drbg_init()
2115 return crypto_register_rngs(drbg_algs, (ARRAY_SIZE(drbg_cores) * 2)); in drbg_init()
2120 crypto_unregister_rngs(drbg_algs, (ARRAY_SIZE(drbg_cores) * 2)); in drbg_exit()
2136 MODULE_DESCRIPTION("NIST SP800-90A Deterministic Random Bit Generator (DRBG) "