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authorMax <msuraev@sysmocom.de>2018-12-19 20:12:19 +0100
committerMax <msuraev@sysmocom.de>2018-12-20 09:51:02 +0000
commitaf25c37f903be0f30a0a6a4663a2892a84c79740 (patch)
treee0ce918cc2a5cbc832edb7e829df398cdc58941f /src
parent6cb833608fa39943c1ce9fe046992922e09f4266 (diff)
Use define for key buffers
Add corresponding spec. references and comments where appropriate. Change-Id: If5e2aad86eaecd8eada667b3488ba415d81c6312
Diffstat (limited to 'src')
-rw-r--r--src/gsm/auth_core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gsm/auth_core.c b/src/gsm/auth_core.c
index f171ed49..9e750a01 100644
--- a/src/gsm/auth_core.c
+++ b/src/gsm/auth_core.c
@@ -98,7 +98,7 @@ int osmo_auth_supported(enum osmo_auth_algo algo)
return 0;
}
-/* C5 function to derive UMTS IK from GSM Kc */
+/* 3GPP TS 33.102 §6.8.2.3 C5 function to derive UMTS IK from GSM Kc */
static inline void c5_function(uint8_t *ik, const uint8_t *kc)
{
unsigned int i;
@@ -110,7 +110,7 @@ static inline void c5_function(uint8_t *ik, const uint8_t *kc)
ik[i] = ik[i-12];
}
-/* C4 function to derive UMTS CK from GSM Kc */
+/* 3GPP TS 33.102 §6.8.2.3 C4 function to derive UMTS CK from GSM Kc */
void osmo_c4(uint8_t *ck, const uint8_t *kc)
{
memcpy(ck, kc, 8);