bn_check_top(Ai);
BN_BLINDING *BN_BLINDING_new(BIGNUM *A, BIGNUM *Ai, BIGNUM *mod)	{	BN_BLINDING *ret=NULL;	bn_check_top(Ai);	bn_check_top(mod);	if ((ret=(BN_BLINDING *)OPENSSL_malloc(sizeof(BN_BLINDING))) == NULL)		{		BNerr(BN_F_BN_BLINDING_NEW,ERR_R_MALLOC_FAILURE);		return(NULL);		}	memset(ret,0,sizeof(BN_BLINDING));	if ((ret->A=BN_new()) == NULL) goto err;	if ((ret->Ai=BN_new()) == NULL) goto err;	if (!BN_copy(ret->A,A)) goto err;	if (!BN_copy(ret->Ai,Ai)) goto err;	ret->mod=mod;	return(ret);err:	if (ret != NULL) BN_BLINDING_free(ret);	return(NULL);	}