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Changed the logic for determining the group used for KeyShare.

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TakayukiMatsuo
2021-04-15 19:30:02 +09:00
parent 21faeff478
commit 2db06eb3b7
1 changed files with 9 additions and 8 deletions
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17
src/tls.c
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@ -10329,20 +10329,21 @@ int TLSX_PopulateExtensions(WOLFSSL* ssl, byte isServer)
int set = 0;
int i, j;
/* Default to first group in supported list. */
namedGroup = ssl->group[0];
/* Try to find preferred in supported list. */
for (i = 0; i < (int)PREFERRED_GROUP_SZ && !set; i++) {
for (j = 0; j < ssl->numGroups; j++) {
if (preferredGroup[i] == ssl->group[j]) {
/* Most preferred that is supported. */
namedGroup = ssl->group[j];
/* try to find the highest element in ssl->group[]
* that is contained in preferredGroup[].
*/
namedGroup = preferredGroup[0];
for (i = 0; i < ssl->numGroups && !set; i++) {
for (j = 0; j < (int)PREFERRED_GROUP_SZ; j++) {
if (preferredGroup[j] == ssl->group[i]) {
namedGroup = ssl->group[i];
set = 1;
break;
}
}
}
}
else {
/* Choose the most preferred group. */
namedGroup = preferredGroup[0];