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-rw-r--r--crypto/ec/ec_lib.c223
1 files changed, 61 insertions, 162 deletions
diff --git a/crypto/ec/ec_lib.c b/crypto/ec/ec_lib.c
index 7cb4759f65..d850b54ef4 100644
--- a/crypto/ec/ec_lib.c
+++ b/crypto/ec/ec_lib.c
@@ -109,6 +109,32 @@ EC_GROUP *EC_GROUP_new(const EC_METHOD *meth)
return NULL;
}
+static void ec_group_free_precomp(EC_GROUP *group)
+{
+ switch (group->pre_comp_type) {
+ default:
+ break;
+ case pct_nistz256:
+ EC_nistz256_pre_comp_free(group->pre_comp.nistz256);
+ break;
+#ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
+ case pct_nistp224:
+ EC_nistp224_pre_comp_free(group->pre_comp.nistp224);
+ break;
+ case pct_nistp256:
+ EC_nistp256_pre_comp_free(group->pre_comp.nistp256);
+ break;
+ case pct_nistp521:
+ EC_nistp521_pre_comp_free(group->pre_comp.nistp521);
+ break;
+#endif
+ case pct_ec:
+ EC_ec_pre_comp_free(group->pre_comp.ec);
+ break;
+ }
+ group->pre_comp.ec = NULL;
+}
+
void EC_GROUP_free(EC_GROUP *group)
{
if (!group)
@@ -117,7 +143,7 @@ void EC_GROUP_free(EC_GROUP *group)
if (group->meth->group_finish != 0)
group->meth->group_finish(group);
- EC_EX_DATA_free_all_data(&group->extra_data);
+ ec_group_free_precomp(group);
BN_MONT_CTX_free(group->mont_data);
EC_POINT_free(group->generator);
BN_free(group->order);
@@ -136,10 +162,8 @@ void EC_GROUP_clear_free(EC_GROUP *group)
else if (group->meth->group_finish != 0)
group->meth->group_finish(group);
- EC_EX_DATA_clear_free_all_data(&group->extra_data);
-
+ ec_group_free_precomp(group);
BN_MONT_CTX_free(group->mont_data);
-
EC_POINT_clear_free(group->generator);
BN_clear_free(group->order);
BN_clear_free(group->cofactor);
@@ -149,8 +173,6 @@ void EC_GROUP_clear_free(EC_GROUP *group)
int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)
{
- EC_EXTRA_DATA *d;
-
if (dest->meth->group_copy == 0) {
ECerr(EC_F_EC_GROUP_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
@@ -162,17 +184,29 @@ int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)
if (dest == src)
return 1;
- EC_EX_DATA_free_all_data(&dest->extra_data);
-
- for (d = src->extra_data; d != NULL; d = d->next) {
- void *t = d->dup_func(d->data);
-
- if (t == NULL)
- return 0;
- if (!EC_EX_DATA_set_data
- (&dest->extra_data, t, d->dup_func, d->free_func,
- d->clear_free_func))
- return 0;
+ /* Copy precomputed */
+ dest->pre_comp_type = src->pre_comp_type;
+ switch (src->pre_comp_type) {
+ default:
+ dest->pre_comp.ec = NULL;
+ break;
+ case pct_nistz256:
+ dest->pre_comp.nistz256 = EC_nistz256_pre_comp_dup(src->pre_comp.nistz256);
+ break;
+#ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
+ case pct_nistp224:
+ dest->pre_comp.nistp224 = EC_nistp224_pre_comp_dup(src->pre_comp.nistp224);
+ break;
+ case pct_nistp256:
+ dest->pre_comp.nistp256 = EC_nistp256_pre_comp_dup(src->pre_comp.nistp256);
+ break;
+ case pct_nistp521:
+ dest->pre_comp.nistp521 = EC_nistp521_pre_comp_dup(src->pre_comp.nistp521);
+ break;
+#endif
+ case pct_ec:
+ dest->pre_comp.ec = EC_ec_pre_comp_dup(src->pre_comp.ec);
+ break;
}
if (src->mont_data != NULL) {
@@ -518,151 +552,6 @@ int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx)
return r;
}
-/* this has 'package' visibility */
-int EC_EX_DATA_set_data(EC_EXTRA_DATA **ex_data, void *data,
- void *(*dup_func) (void *),
- void (*free_func) (void *),
- void (*clear_free_func) (void *))
-{
- EC_EXTRA_DATA *d;
-
- if (ex_data == NULL)
- return 0;
-
- for (d = *ex_data; d != NULL; d = d->next) {
- if (d->dup_func == dup_func && d->free_func == free_func
- && d->clear_free_func == clear_free_func) {
- ECerr(EC_F_EC_EX_DATA_SET_DATA, EC_R_SLOT_FULL);
- return 0;
- }
- }
-
- if (data == NULL)
- /* no explicit entry needed */
- return 1;
-
- d = OPENSSL_malloc(sizeof(*d));
- if (d == NULL)
- return 0;
-
- d->data = data;
- d->dup_func = dup_func;
- d->free_func = free_func;
- d->clear_free_func = clear_free_func;
-
- d->next = *ex_data;
- *ex_data = d;
-
- return 1;
-}
-
-/* this has 'package' visibility */
-void *EC_EX_DATA_get_data(const EC_EXTRA_DATA *ex_data,
- void *(*dup_func) (void *),
- void (*free_func) (void *),
- void (*clear_free_func) (void *))
-{
- const EC_EXTRA_DATA *d;
-
- for (d = ex_data; d != NULL; d = d->next) {
- if (d->dup_func == dup_func && d->free_func == free_func
- && d->clear_free_func == clear_free_func)
- return d->data;
- }
-
- return NULL;
-}
-
-/* this has 'package' visibility */
-void EC_EX_DATA_free_data(EC_EXTRA_DATA **ex_data,
- void *(*dup_func) (void *),
- void (*free_func) (void *),
- void (*clear_free_func) (void *))
-{
- EC_EXTRA_DATA **p;
-
- if (ex_data == NULL)
- return;
-
- for (p = ex_data; *p != NULL; p = &((*p)->next)) {
- if ((*p)->dup_func == dup_func && (*p)->free_func == free_func
- && (*p)->clear_free_func == clear_free_func) {
- EC_EXTRA_DATA *next = (*p)->next;
-
- (*p)->free_func((*p)->data);
- OPENSSL_free(*p);
-
- *p = next;
- return;
- }
- }
-}
-
-/* this has 'package' visibility */
-void EC_EX_DATA_clear_free_data(EC_EXTRA_DATA **ex_data,
- void *(*dup_func) (void *),
- void (*free_func) (void *),
- void (*clear_free_func) (void *))
-{
- EC_EXTRA_DATA **p;
-
- if (ex_data == NULL)
- return;
-
- for (p = ex_data; *p != NULL; p = &((*p)->next)) {
- if ((*p)->dup_func == dup_func && (*p)->free_func == free_func
- && (*p)->clear_free_func == clear_free_func) {
- EC_EXTRA_DATA *next = (*p)->next;
-
- (*p)->clear_free_func((*p)->data);
- OPENSSL_free(*p);
-
- *p = next;
- return;
- }
- }
-}
-
-/* this has 'package' visibility */
-void EC_EX_DATA_free_all_data(EC_EXTRA_DATA **ex_data)
-{
- EC_EXTRA_DATA *d;
-
- if (ex_data == NULL)
- return;
-
- d = *ex_data;
- while (d) {
- EC_EXTRA_DATA *next = d->next;
-
- d->free_func(d->data);
- OPENSSL_free(d);
-
- d = next;
- }
- *ex_data = NULL;
-}
-
-/* this has 'package' visibility */
-void EC_EX_DATA_clear_free_all_data(EC_EXTRA_DATA **ex_data)
-{
- EC_EXTRA_DATA *d;
-
- if (ex_data == NULL)
- return;
-
- d = *ex_data;
- while (d) {
- EC_EXTRA_DATA *next = d->next;
-
- d->clear_free_func(d->data);
- OPENSSL_free(d);
-
- d = next;
- }
- *ex_data = NULL;
-}
-
/* functions for EC_POINT objects */
EC_POINT *EC_POINT_new(const EC_GROUP *group)
@@ -1091,3 +980,13 @@ int ec_precompute_mont_data(EC_GROUP *group)
BN_CTX_free(ctx);
return ret;
}
+
+int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg)
+{
+ return CRYPTO_set_ex_data(&key->ex_data, idx, arg);
+}
+
+void *EC_KEY_get_ex_data(const EC_KEY *key, int idx)
+{
+ return CRYPTO_get_ex_data(&key->ex_data, idx);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-15 21:22:24 +0000