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fixes for DSA2 parameter generation

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This commit is contained in:
Dr. Stephen Henson 2011-02-01 17:15:19 +00:00
parent 5eedacc904
commit 3c2c4cc5f2
1 changed files with 5 additions and 4 deletions
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9
crypto/dsa/dsa_gen.c
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@ -472,7 +472,7 @@ int dsa_builtin_paramgen2(DSA *ret, size_t L, size_t N,
goto err;
if (!seed_in)
RAND_pseudo_bytes(seed, qsize);
RAND_pseudo_bytes(seed, seed_len);
/* step 2 */
if (!EVP_Digest(seed, seed_len, md, NULL, evpmd, NULL))
goto err;
@ -509,6 +509,9 @@ int dsa_builtin_paramgen2(DSA *ret, size_t L, size_t N,
/* do a callback call */
/* step 5 */
}
/* Copy seed to seed_out before we mess with it */
if (seed_out)
memcpy(seed_out, seed, seed_len);
if(!BN_GENCB_call(cb, 2, 0)) goto err;
if(!BN_GENCB_call(cb, 3, 0)) goto err;
@ -605,7 +608,7 @@ end:
ok=1;
err:
if (ok)
if (ok == 1)
{
if(ret->p) BN_free(ret->p);
if(ret->q) BN_free(ret->q);
@ -620,8 +623,6 @@ err:
}
if (counter_ret != NULL) *counter_ret=counter;
if (h_ret != NULL) *h_ret=h;
if (seed_out)
memcpy(seed_out, seed, seed_len);
}
if (seed)
OPENSSL_free(seed);