aboutsummaryrefslogtreecommitdiffstats
path: root/src/gsm/milenage/milenage.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gsm/milenage/milenage.c')
-rw-r--r--src/gsm/milenage/milenage.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/gsm/milenage/milenage.c b/src/gsm/milenage/milenage.c
index cc4e95c5..b43f986a 100644
--- a/src/gsm/milenage/milenage.c
+++ b/src/gsm/milenage/milenage.c
@@ -327,3 +327,18 @@ int milenage_check(const u8 *opc, const u8 *k, const u8 *sqn, const u8 *_rand,
return 0;
}
+
+int milenage_opc_gen(u8 *opc, const u8 *k, const u8 *op)
+{
+ int i;
+
+ /* Encrypt OP using K */
+ if (aes_128_encrypt_block(k, op, opc))
+ return -1;
+
+ /* XOR the resulting Ek(OP) with OP */
+ for (i = 0; i < 16; i++)
+ opc[i] = opc[i] ^ op[i];
+
+ return 0;
+}