- {
- int ok=0;
- BN_CTX *ctx=NULL;
- BIGNUM *pub_key=NULL,*priv_key=NULL;
-
- if (FIPS_mode() && (BN_num_bits(dsa->p) < OPENSSL_DSA_FIPS_MIN_MODULUS_BITS))
- {
- DSAerr(DSA_F_DSA_BUILTIN_KEYGEN, DSA_R_KEY_SIZE_TOO_SMALL);
- goto err;
- }
-
- if ((ctx=BN_CTX_new()) == NULL) goto err;
-
- if (dsa->priv_key == NULL)
- {
- if ((priv_key=BN_new()) == NULL) goto err;
- }
- else
- priv_key=dsa->priv_key;
-
- do
- if (!BN_rand_range(priv_key,dsa->q)) goto err;
- while (BN_is_zero(priv_key));
-
- if (dsa->pub_key == NULL)
- {
- if ((pub_key=BN_new()) == NULL) goto err;
- }
- else
- pub_key=dsa->pub_key;
-
- {
- BIGNUM local_prk;
- BIGNUM *prk;
-
- if ((dsa->flags & DSA_FLAG_NO_EXP_CONSTTIME) == 0)
- {
- BN_init(&local_prk);
- prk = &local_prk;
- BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME);
- }
- else
- prk = priv_key;
-
- if (!BN_mod_exp(pub_key,dsa->g,prk,dsa->p,ctx)) goto err;
- }
-
- dsa->priv_key=priv_key;
- dsa->pub_key=pub_key;
- if (fips_dsa_pairwise_fail)
- BN_add_word(dsa->pub_key, 1);
- if(!fips_check_dsa(dsa))
- goto err;
- ok=1;
-
-err:
- if ((pub_key != NULL) && (dsa->pub_key == NULL)) BN_free(pub_key);
- if ((priv_key != NULL) && (dsa->priv_key == NULL)) BN_free(priv_key);
- if (ctx != NULL) BN_CTX_free(ctx);
- return(ok);
- }
-#endif
+{
+ int ok = 0;
+ BN_CTX *ctx = NULL;
+ BIGNUM *pub_key = NULL, *priv_key = NULL;
+
+ if (FIPS_mode()
+ && (BN_num_bits(dsa->p) < OPENSSL_DSA_FIPS_MIN_MODULUS_BITS)) {
+ DSAerr(DSA_F_DSA_BUILTIN_KEYGEN, DSA_R_KEY_SIZE_TOO_SMALL);
+ goto err;
+ }
+
+ if ((ctx = BN_CTX_new()) == NULL)
+ goto err;
+
+ if (dsa->priv_key == NULL) {
+ if ((priv_key = BN_new()) == NULL)
+ goto err;
+ } else
+ priv_key = dsa->priv_key;
+
+ do
+ if (!BN_rand_range(priv_key, dsa->q))
+ goto err;
+ while (BN_is_zero(priv_key)) ;
+
+ if (dsa->pub_key == NULL) {
+ if ((pub_key = BN_new()) == NULL)
+ goto err;
+ } else
+ pub_key = dsa->pub_key;
+
+ {
+ BIGNUM local_prk;
+ BIGNUM *prk;
+
+ if ((dsa->flags & DSA_FLAG_NO_EXP_CONSTTIME) == 0) {
+ BN_init(&local_prk);
+ prk = &local_prk;
+ BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME);
+ } else
+ prk = priv_key;
+
+ if (!BN_mod_exp(pub_key, dsa->g, prk, dsa->p, ctx))
+ goto err;
+ }
+
+ dsa->priv_key = priv_key;
+ dsa->pub_key = pub_key;
+ if (fips_dsa_pairwise_fail)
+ BN_add_word(dsa->pub_key, 1);
+ if (!fips_check_dsa(dsa))
+ goto err;
+ ok = 1;
+
+ err:
+ if ((pub_key != NULL) && (dsa->pub_key == NULL))
+ BN_free(pub_key);
+ if ((priv_key != NULL) && (dsa->priv_key == NULL))
+ BN_free(priv_key);
+ if (ctx != NULL)
+ BN_CTX_free(ctx);
+ return (ok);
+}
+# endif