auth: Fix XOR algorithm
Thanks to the person on the ml that pointed this bug. Sorry I
don't remember who (it was a while ago and somehow didn't got
fixed at that time)
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/openbsc/src/auth.c b/openbsc/src/auth.c
index f57b668..9103901 100644
--- a/openbsc/src/auth.c
+++ b/openbsc/src/auth.c
@@ -44,7 +44,7 @@
for (i=0; i<4; i++)
atuple->sres[i] = atuple->rand[i] ^ ainfo->a3a8_ki[i];
- for (i=8; i<12; i++)
+ for (i=4; i<12; i++)
atuple->kc[i-4] = atuple->rand[i] ^ ainfo->a3a8_ki[i];
return 0;