return 1;
}
-#ifndef FIPS_MODE
-int ECDSA_size(const EC_KEY *r)
+int ECDSA_size(const EC_KEY *ec)
{
- int ret, i;
- ASN1_INTEGER bs;
- unsigned char buf[4];
+ int ret;
+ ECDSA_SIG sig;
const EC_GROUP *group;
+ const BIGNUM *bn;
- if (r == NULL)
+ if (ec == NULL)
return 0;
- group = EC_KEY_get0_group(r);
+ group = EC_KEY_get0_group(ec);
if (group == NULL)
return 0;
- i = EC_GROUP_order_bits(group);
- if (i == 0)
+ bn = EC_GROUP_get0_order(group);
+ if (bn == NULL)
return 0;
- bs.length = (i + 7) / 8;
- bs.data = buf;
- bs.type = V_ASN1_INTEGER;
- /* If the top bit is set the asn1 encoding is 1 larger. */
- buf[0] = 0xff;
-
- i = i2d_ASN1_INTEGER(&bs, NULL);
- i += i; /* r and s */
- ret = ASN1_object_size(1, i, V_ASN1_SEQUENCE);
+
+ sig.r = sig.s = (BIGNUM *)bn;
+ ret = i2d_ECDSA_SIG(&sig, NULL);
+
+ if (ret < 0)
+ ret = 0;
return ret;
}
-#endif