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Test: link drbgtest statically against libcrypto

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and remove duplicate rand_drbg_seedlen() implementation again.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7462)
This commit is contained in:
Dr. Matthias St. Pierre 2018-10-22 18:05:14 +02:00
parent 680bd131b6
commit 1c615e4ce9
4 changed files with 3 additions and 47 deletions
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6
crypto/rand/drbg_lib.c
View File

@ -1045,12 +1045,8 @@ static int drbg_bytes(unsigned char *out, int count)
* Calculates the minimum length of a full entropy buffer
* which is necessary to seed (i.e. instantiate) the DRBG
* successfully.
*
* NOTE: There is a copy of this function in drbgtest.c.
* If you change anything here, you need to update
* the copy accordingly.
*/
static size_t rand_drbg_seedlen(RAND_DRBG *drbg)
size_t rand_drbg_seedlen(RAND_DRBG *drbg)
{
/*
* If no os entropy source is available then RAND_seed(buffer, bufsize)

2
crypto/rand/rand_lcl.h
View File

@ -309,7 +309,7 @@ extern int rand_fork_count;
/* DRBG helpers */
int rand_drbg_restart(RAND_DRBG *drbg,
const unsigned char *buffer, size_t len, size_t entropy);
size_t rand_drbg_seedlen(RAND_DRBG *drbg);
/* locking api */
int rand_drbg_lock(RAND_DRBG *drbg);
int rand_drbg_unlock(RAND_DRBG *drbg);

2
test/build.info
View File

@ -342,7 +342,7 @@ INCLUDE_MAIN___test_libtestutil_OLB = /INCLUDE=main
SOURCE[drbgtest]=drbgtest.c
INCLUDE[drbgtest]=../include
DEPEND[drbgtest]=../libcrypto libtestutil.a
DEPEND[drbgtest]=../libcrypto.a libtestutil.a
SOURCE[drbg_cavs_test]=drbg_cavs_test.c drbg_cavs_data_ctr.c \
drbg_cavs_data_hash.c drbg_cavs_data_hmac.c

40
test/drbgtest.c
View File

@ -901,46 +901,6 @@ static int test_multi_thread(void)
}
#endif
#ifdef OPENSSL_RAND_SEED_NONE
/*
* Calculates the minimum buffer length which needs to be
* provided to RAND_seed() in order to successfully
* instantiate the DRBG.
*
* Copied from rand_drbg_seedlen() in rand_drbg.c
*/
static size_t rand_drbg_seedlen(RAND_DRBG *drbg)
{
/*
* If no os entropy source is available then RAND_seed(buffer, bufsize)
* is expected to succeed if and only if the buffer length satisfies
* the following requirements, which follow from the calculations
* in RAND_DRBG_instantiate().
*/
size_t min_entropy = drbg->strength;
size_t min_entropylen = drbg->min_entropylen;
/*
* Extra entropy for the random nonce in the absence of a
* get_nonce callback, see comment in RAND_DRBG_instantiate().
*/
if (drbg->min_noncelen > 0 && drbg->get_nonce == NULL) {
min_entropy += drbg->strength / 2;
min_entropylen += drbg->min_noncelen;
}
/*
* Convert entropy requirement from bits to bytes
* (dividing by 8 without rounding upwards, because
* all entropy requirements are divisible by 8).
*/
min_entropy >>= 3;
/* Return a value that satisfies both requirements */
return min_entropy > min_entropylen ? min_entropy : min_entropylen;
}
#endif /*OPENSSL_RAND_SEED_NONE*/
/*
* Test that instantiation with RAND_seed() works as expected
*