BN_MONT_CTX *m_ctx);
};
-BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod)
+BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, /* const */ BIGNUM *mod)
{
BN_BLINDING *ret=NULL;
{
if ((ret->Ai = BN_dup(Ai)) == NULL) goto err;
}
- ret->mod = mod;
+
+ /* save a copy of mod in the BN_BLINDING structure */
+ if ((ret->mod = BN_dup(mod)) == NULL) goto err;
+ if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)
+ BN_set_flags(ret->mod, BN_FLG_CONSTTIME);
+
ret->counter = BN_BLINDING_COUNTER;
return(ret);
err:
if (r->A != NULL) BN_free(r->A );
if (r->Ai != NULL) BN_free(r->Ai);
if (r->e != NULL) BN_free(r->e );
+ if (r->mod != NULL) BN_free(r->mod);
OPENSSL_free(r);
}
}
BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b,
- const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
+ const BIGNUM *e, /* const */ BIGNUM *m, BN_CTX *ctx,
int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx),
BN_MONT_CTX *m_ctx)