diff options
Diffstat (limited to 'epan/crypt/airpdcap_tkip.c')
| -rw-r--r-- | epan/crypt/airpdcap_tkip.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/epan/crypt/airpdcap_tkip.c b/epan/crypt/airpdcap_tkip.c index e64b303445..819a0c6dce 100644 --- a/epan/crypt/airpdcap_tkip.c +++ b/epan/crypt/airpdcap_tkip.c @@ -216,17 +216,23 @@ INT AirPDcapTkipDecrypt( UCHAR TA[AIRPDCAP_MAC_LEN], UCHAR TK[AIRPDCAP_TK_LEN]) { + UINT64 TSC64; UINT32 TSC; UINT16 TSC16; UINT8 *IV; UINT16 TTAK[AIRPDCAP_TTAK_LEN]; UINT8 wep_seed[AIRPDCAP_WEP_128_KEY_LEN]; + /* DEBUG_DUMP("TA", TA, 6); */ + IV = tkip_mpdu; - TSC16 = (UINT16)READ_6(IV[2], IV[0], IV[4], IV[5], IV[6], IV[7]); + TSC64 = READ_6(IV[2], IV[0], IV[4], IV[5], IV[6], IV[7]); + TSC16 = (UINT16)TSC64; - TSC = (UINT32)TSC16 >> 16; + /* The original code made no sense!! We were shifting a 16-bit number 16 bits to the right. */ + /* We instead have to have READ_6() be returned to a UINT64 and shift *that* value. */ + TSC = (UINT32)(TSC64 >> 16); AirPDcapTkipMixingPhase1(TTAK, TK, TA, TSC); |