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Fix for issues with wolfSSL_OBJ_nid2sn and wc_OBJ_sn2nid and logic finding max item when WOLFSSL_CUSTOM_CURVES and ECC_CACHE_CURVE are defined. Improvements to wolfSSL_EC_get_builtin_curves to avoid using "min" as variable name and eliminate using a local static.

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This commit is contained in:
David Garske
2019-11-22 10:09:10 -08:00
parent ffb3dfd6ec
commit be88bce36d
2 changed files with 8 additions and 10 deletions
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16
src/ssl.c
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@ -31868,20 +31868,18 @@ int wolfSSL_EC_POINT_is_at_infinity(const WOLFSSL_EC_GROUP *group,
size_t wolfSSL_EC_get_builtin_curves(WOLFSSL_EC_builtin_curve *r, size_t nitems)
{
static size_t ecc_sets_count = 0;
size_t i, min;
size_t ecc_sets_count;
size_t i, min_nitems;
if (ecc_sets_count == 0) {
for (i = 0; ecc_sets[i].size != 0; i++);
ecc_sets_count = i;
}
for (i = 0; ecc_sets[i].size != 0 && ecc_sets[i].name != NULL; i++);
ecc_sets_count = i;
if (r == NULL || nitems == 0)
return ecc_sets_count;
min = nitems < ecc_sets_count ? nitems : ecc_sets_count;
min_nitems = nitems < ecc_sets_count ? nitems : ecc_sets_count;
for (i = 0; i < min; i++) {
for (i = 0; i < min_nitems; i++) {
r[i].nid = ecc_sets[i].id;
r[i].comment = ecc_sets[i].name;
}
@ -36875,7 +36873,7 @@ err:
WOLFSSL_ENTER("wolfSSL_OBJ_nid2sn");
/* find based on NID and return name */
for (i = 0; i < ecc_sets[i].size; i++) {
for (i = 0; ecc_sets[i].size != 0; i++) {
if (n == ecc_sets[i].id) {
return ecc_sets[i].name;
}

2
wolfcrypt/src/asn.c
View File

@ -4811,7 +4811,7 @@ WOLFSSL_LOCAL int wc_OBJ_sn2nid(const char *sn)
if (XSTRNCMP(sn, "secp384r1", 10) == 0)
sn = "SECP384R1";
/* find based on name and return NID */
for (i = 0; i < ecc_sets[i].size; i++) {
for (i = 0; ecc_sets[i].size != 0 && ecc_sets[i].name != NULL; i++) {
if (XSTRNCMP(sn, ecc_sets[i].name, ECC_MAXNAME) == 0) {
return ecc_sets[i].id;
}