BNerr(BN_F_BN_BLINDING_INVERT,BN_R_NOT_INITALISED);
BNerr(BN_F_BN_BLINDING_INVERT,BN_R_NOT_INITIALIZED);
int BN_BLINDING_invert(n,b,ctx)BIGNUM *n;BN_BLINDING *b;BN_CTX *ctx;	{	int ret;	bn_check_top(n);	if ((b->A == NULL) || (b->Ai == NULL))		{		BNerr(BN_F_BN_BLINDING_INVERT,BN_R_NOT_INITALISED);		return(0);		}	if ((ret=BN_mod_mul(n,n,b->Ai,b->mod,ctx)) >= 0)		{		if (!BN_BLINDING_update(b,ctx))			return(0);		}	return(ret);	}