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Add some simple impersonation detection on friend requests

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This will alert the user when the first six bytes of a new
contact's public key is the same as any other contact in
their list. These 6 bytes are used elsewhere in toxic for
unique identification.

Also did a small refactor regarding the KEY_IDENT_BYTES
define
This commit is contained in:
jfreegman
2022-01-23 11:32:57 -05:00
parent 05dbc626e2
commit f6f41a510b
4 changed files with 37 additions and 12 deletions
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8
src/chat.c
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@ -1385,7 +1385,7 @@ static void chat_onDraw(ToxWindow *self, Tox *m)
self->x = x2;
/* Truncate note if it doesn't fit in statusbar */
size_t maxlen = x2 - getcurx(statusbar->topline) - (KEY_IDENT_DIGITS * 2) - 6;
size_t maxlen = x2 - getcurx(statusbar->topline) - KEY_IDENT_BYTES - 6;
pthread_mutex_lock(&Winthread.lock);
size_t statusmsg_len = statusbar->statusmsg_len;
@ -1416,10 +1416,10 @@ static void chat_onDraw(ToxWindow *self, Tox *m)
int s_x;
getyx(statusbar->topline, s_y, s_x);
mvwhline(statusbar->topline, s_y, s_x, ' ', x2 - s_x - (KEY_IDENT_DIGITS * 2) - 3);
mvwhline(statusbar->topline, s_y, s_x, ' ', x2 - s_x - KEY_IDENT_BYTES - 3);
wattroff(statusbar->topline, COLOR_PAIR(BAR_TEXT));
wmove(statusbar->topline, 0, x2 - (KEY_IDENT_DIGITS * 2) - 3);
wmove(statusbar->topline, 0, x2 - KEY_IDENT_BYTES - 3);
wattron(statusbar->topline, COLOR_PAIR(BAR_ACCENT));
wprintw(statusbar->topline, "{");
@ -1427,7 +1427,7 @@ static void chat_onDraw(ToxWindow *self, Tox *m)
wattron(statusbar->topline, COLOR_PAIR(BAR_TEXT));
for (size_t i = 0; i < KEY_IDENT_DIGITS; ++i) {
for (size_t i = 0; i < KEY_IDENT_BYTES / 2; ++i) {
wprintw(statusbar->topline, "%02X", Friends.list[self->num].pub_key[i] & 0xff);
}