183 static void BN_RECP_CTX_init(BN_RECP_CTX *recp) {  in BN_RECP_CTX_init()  argument
184   BN_init(&recp->N);  in BN_RECP_CTX_init()
185   BN_init(&recp->Nr);  in BN_RECP_CTX_init()
186   recp->num_bits = 0;  in BN_RECP_CTX_init()
187   recp->shift = 0;  in BN_RECP_CTX_init()
188   recp->flags = 0;  in BN_RECP_CTX_init()
191 static void BN_RECP_CTX_free(BN_RECP_CTX *recp) {  in BN_RECP_CTX_free()  argument
192   if (recp == NULL) {  in BN_RECP_CTX_free()
196   BN_free(&recp->N);  in BN_RECP_CTX_free()
197   BN_free(&recp->Nr);  in BN_RECP_CTX_free()
200 static int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx) {  in BN_RECP_CTX_set()  argument
201   if (!BN_copy(&(recp->N), d)) {  in BN_RECP_CTX_set()
204   BN_zero(&recp->Nr);  in BN_RECP_CTX_set()
205   recp->num_bits = BN_num_bits(d);  in BN_RECP_CTX_set()
206   recp->shift = 0;  in BN_RECP_CTX_set()
241                        BN_RECP_CTX *recp, BN_CTX *ctx) {  in BN_div_recp()  argument
264   if (BN_ucmp(m, &recp->N) < 0) {  in BN_div_recp()
279   j = recp->num_bits << 1;  in BN_div_recp()
285   if (i != recp->shift) {  in BN_div_recp()
286     recp->shift =  in BN_div_recp()
287         BN_reciprocal(&(recp->Nr), &(recp->N), i,  in BN_div_recp()
291   if (recp->shift == -1) {  in BN_div_recp()
301   if (!BN_rshift(a, m, recp->num_bits)) {  in BN_div_recp()
304   if (!BN_mul(b, a, &(recp->Nr), ctx)) {  in BN_div_recp()
307   if (!BN_rshift(d, b, i - recp->num_bits)) {  in BN_div_recp()
312   if (!BN_mul(b, &(recp->N), d, ctx)) {  in BN_div_recp()
321   while (BN_ucmp(r, &(recp->N)) >= 0) {  in BN_div_recp()
326     if (!BN_usub(r, r, &(recp->N))) {  in BN_div_recp()
335   d->neg = m->neg ^ recp->N.neg;  in BN_div_recp()
344                                  BN_RECP_CTX *recp, BN_CTX *ctx) {  in BN_mod_mul_reciprocal()  argument
370   ret = BN_div_recp(NULL, r, ca, recp, ctx);  in BN_mod_mul_reciprocal()
437   BN_RECP_CTX recp;  in mod_exp_recp()  local
454   BN_RECP_CTX_init(&recp);  in mod_exp_recp()
461     if (BN_RECP_CTX_set(&recp, aa, ctx) <= 0) {  in mod_exp_recp()
465     if (BN_RECP_CTX_set(&recp, m, ctx) <= 0) {  in mod_exp_recp()
481     if (!BN_mod_mul_reciprocal(aa, val[0], val[0], &recp, ctx)) {  in mod_exp_recp()
487           !BN_mod_mul_reciprocal(val[i], val[i - 1], aa, &recp, ctx)) {  in mod_exp_recp()
508         if (!BN_mod_mul_reciprocal(r, r, r, &recp, ctx)) {  in mod_exp_recp()
541         if (!BN_mod_mul_reciprocal(r, r, r, &recp, ctx)) {  in mod_exp_recp()
548     if (!BN_mod_mul_reciprocal(r, r, val[wvalue >> 1], &recp, ctx)) {  in mod_exp_recp()
563   BN_RECP_CTX_free(&recp);  in mod_exp_recp()