Commit c39df745 authored by Dr. Matthias St. Pierre's avatar Dr. Matthias St. Pierre
Browse files

Test: link drbgtest statically against libcrypto 



and remove duplicate rand_drbg_seedlen() implementation again.

Reviewed-by: default avatarRichard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7462)

(cherry picked from commit 1c615e4ce97715ae3af9255bc57be32a49687966)
parent efd67e01

crypto/rand/drbg_lib.c

+1 −5
Original line number Diff line number Diff line
@@ -974,12 +974,8 @@ 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)

crypto/rand/rand_lcl.h

+1 −1
Original line number Diff line number Diff line
@@ -280,7 +280,7 @@ 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);

test/build.info

+1 −1
Original line number Diff line number Diff line
@@ -341,7 +341,7 @@ 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.c

  INCLUDE[drbg_cavs_test]=../include . ..

test/drbgtest.c

+0 −40
Original line number Diff line number Diff line
@@ -892,46 +892,6 @@ 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

 *