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wlantest: Add BIP-GMAC-128/256 test vectors

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Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-09-09 19:04:53 +03:00
parent 7d19d3e9db
commit e88f0901eb
3 changed files with 142 additions and 0 deletions
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66
wlantest/bip.c
View file

@ -65,3 +65,69 @@ u8 * bip_protect(const u8 *igtk, u8 *frame, size_t len, u8 *ipn, int keyid,
*prot_len = plen; *prot_len = plen;
return prot; return prot;
} }
u8 * bip_gmac_protect(const u8 *igtk, size_t igtk_len, u8 *frame, size_t len,
u8 *ipn, int keyid, size_t *prot_len)
{
u8 *prot, *pos, *buf;
u16 fc;
struct ieee80211_hdr *hdr;
size_t plen;
u8 nonce[12], *npos;
plen = len + 26;
prot = os_malloc(plen);
if (prot == NULL)
return NULL;
os_memcpy(prot, frame, len);
pos = prot + len;
*pos++ = WLAN_EID_MMIE;
*pos++ = 24;
WPA_PUT_LE16(pos, keyid);
pos += 2;
os_memcpy(pos, ipn, 6);
pos += 6;
os_memset(pos, 0, 16); /* MIC */
buf = os_malloc(plen + 20 - 24);
if (buf == NULL) {
os_free(prot);
return NULL;
}
/* BIP AAD: FC(masked) A1 A2 A3 */
hdr = (struct ieee80211_hdr *) frame;
fc = le_to_host16(hdr->frame_control);
fc &= ~(WLAN_FC_RETRY | WLAN_FC_PWRMGT | WLAN_FC_MOREDATA);
WPA_PUT_LE16(buf, fc);
os_memcpy(buf + 2, hdr->addr1, 3 * ETH_ALEN);
os_memcpy(buf + 20, prot + 24, plen - 24);
wpa_hexdump(MSG_MSGDUMP, "BIP-GMAC: AAD|Body(masked)",
buf, plen + 20 - 24);
/* Nonce: A2 | IPN */
os_memcpy(nonce, hdr->addr2, ETH_ALEN);
npos = nonce + ETH_ALEN;
*npos++ = ipn[5];
*npos++ = ipn[4];
*npos++ = ipn[3];
*npos++ = ipn[2];
*npos++ = ipn[1];
*npos++ = ipn[0];
wpa_hexdump(MSG_EXCESSIVE, "BIP-GMAC: Nonce", nonce, sizeof(nonce));
/* MIC = AES-GMAC(AAD || Frame Body(masked)) */
if (aes_gmac(igtk, igtk_len, nonce, sizeof(nonce),
buf, plen + 20 - 24, pos) < 0) {
os_free(prot);
os_free(buf);
return NULL;
}
os_free(buf);
wpa_hexdump(MSG_DEBUG, "BIP-GMAC MMIE MIC", pos, 16);
*prot_len = plen;
return prot;
}

74
wlantest/test_vectors.c
View file

@ -408,6 +408,78 @@ static void test_vector_ccmp_256(void)
} }
static void test_vector_bip_gmac_128(void)
{
u8 igtk[] = {
0x4e, 0xa9, 0x54, 0x3e, 0x09, 0xcf, 0x2b, 0x1e,
0xca, 0x66, 0xff, 0xc5, 0x8b, 0xde, 0xcb, 0xcf
};
u8 ipn[] = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00 };
u8 frame[] = {
0xc0, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00,
0x02, 0x00
};
u8 *prot;
size_t prot_len;
wpa_printf(MSG_INFO, "\nBIP-GMAC-128 with broadcast "
"Deauthentication frame\n");
wpa_hexdump(MSG_INFO, "IGTK", igtk, sizeof(igtk));
wpa_hexdump(MSG_INFO, "IPN", ipn, sizeof(ipn));
wpa_hexdump(MSG_INFO, "Plaintext frame", frame, sizeof(frame));
prot = bip_gmac_protect(igtk, sizeof(igtk), frame, sizeof(frame),
ipn, 4, &prot_len);
if (prot == NULL) {
wpa_printf(MSG_ERROR, "Failed to protect BIP-GMAC-128 frame");
return;
}
wpa_hexdump(MSG_INFO, "Protected MPDU (without FCS)", prot, prot_len);
os_free(prot);
}
static void test_vector_bip_gmac_256(void)
{
u8 igtk[] = {
0x4e, 0xa9, 0x54, 0x3e, 0x09, 0xcf, 0x2b, 0x1e,
0xca, 0x66, 0xff, 0xc5, 0x8b, 0xde, 0xcb, 0xcf,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
};
u8 ipn[] = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00 };
u8 frame[] = {
0xc0, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00,
0x02, 0x00
};
u8 *prot;
size_t prot_len;
wpa_printf(MSG_INFO, "\nBIP-GMAC-256 with broadcast "
"Deauthentication frame\n");
wpa_hexdump(MSG_INFO, "IGTK", igtk, sizeof(igtk));
wpa_hexdump(MSG_INFO, "IPN", ipn, sizeof(ipn));
wpa_hexdump(MSG_INFO, "Plaintext frame", frame, sizeof(frame));
prot = bip_gmac_protect(igtk, sizeof(igtk), frame, sizeof(frame),
ipn, 4, &prot_len);
if (prot == NULL) {
wpa_printf(MSG_ERROR, "Failed to protect BIP-GMAC-256 frame");
return;
}
wpa_hexdump(MSG_INFO, "Protected MPDU (without FCS)", prot, prot_len);
os_free(prot);
}
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
wpa_debug_level = MSG_EXCESSIVE; wpa_debug_level = MSG_EXCESSIVE;
@ -423,6 +495,8 @@ int main(int argc, char *argv[])
test_vector_gcmp(); test_vector_gcmp();
test_vector_gcmp_256(); test_vector_gcmp_256();
test_vector_ccmp_256(); test_vector_ccmp_256();
test_vector_bip_gmac_128();
test_vector_bip_gmac_256();
os_program_deinit(); os_program_deinit();

2
wlantest/wlantest.h
View file

@ -243,6 +243,8 @@ u8 * wep_decrypt(struct wlantest *wt, const struct ieee80211_hdr *hdr,
u8 * bip_protect(const u8 *igtk, u8 *frame, size_t len, u8 *ipn, int keyid, u8 * bip_protect(const u8 *igtk, u8 *frame, size_t len, u8 *ipn, int keyid,
size_t *prot_len); size_t *prot_len);
u8 * bip_gmac_protect(const u8 *igtk, size_t igtk_len, u8 *frame, size_t len,
u8 *ipn, int keyid, size_t *prot_len);
u8 * gcmp_decrypt(const u8 *tk, size_t tk_len, const struct ieee80211_hdr *hdr, u8 * gcmp_decrypt(const u8 *tk, size_t tk_len, const struct ieee80211_hdr *hdr,
const u8 *data, size_t data_len, size_t *decrypted_len); const u8 *data, size_t data_len, size_t *decrypted_len);