2 *************************************************************************
4 * 5F., No.36, Taiyuan St., Jhubei City,
8 * (c) Copyright 2002-2007, Ralink Technology, Inc.
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
15 * This program is distributed in the hope that it will be useful, *
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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18 * GNU General Public License for more details. *
20 * You should have received a copy of the GNU General Public License *
21 * along with this program; if not, write to the *
22 * Free Software Foundation, Inc., *
23 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
25 *************************************************************************
34 -------- ---------- ----------------------------------------------
35 Jan Lee 03-07-22 Initial
36 Paul Lin 03-11-28 Modify for supplicant
38 #include "../rt_config.h"
40 UCHAR OUI_WPA_NONE_AKM[4] = {0x00, 0x50, 0xF2, 0x00};
41 UCHAR OUI_WPA_VERSION[4] = {0x00, 0x50, 0xF2, 0x01};
42 UCHAR OUI_WPA_WEP40[4] = {0x00, 0x50, 0xF2, 0x01};
43 UCHAR OUI_WPA_TKIP[4] = {0x00, 0x50, 0xF2, 0x02};
44 UCHAR OUI_WPA_CCMP[4] = {0x00, 0x50, 0xF2, 0x04};
45 UCHAR OUI_WPA_WEP104[4] = {0x00, 0x50, 0xF2, 0x05};
46 UCHAR OUI_WPA_8021X_AKM[4] = {0x00, 0x50, 0xF2, 0x01};
47 UCHAR OUI_WPA_PSK_AKM[4] = {0x00, 0x50, 0xF2, 0x02};
49 UCHAR OUI_WPA2_WEP40[4] = {0x00, 0x0F, 0xAC, 0x01};
50 UCHAR OUI_WPA2_TKIP[4] = {0x00, 0x0F, 0xAC, 0x02};
51 UCHAR OUI_WPA2_CCMP[4] = {0x00, 0x0F, 0xAC, 0x04};
52 UCHAR OUI_WPA2_8021X_AKM[4] = {0x00, 0x0F, 0xAC, 0x01};
53 UCHAR OUI_WPA2_PSK_AKM[4] = {0x00, 0x0F, 0xAC, 0x02};
54 UCHAR OUI_WPA2_WEP104[4] = {0x00, 0x0F, 0xAC, 0x05};
56 UCHAR OUI_MSA_8021X_AKM[4] = {0x00, 0x0F, 0xAC, 0x05}; // Not yet final - IEEE 802.11s-D1.06
57 UCHAR OUI_MSA_PSK_AKM[4] = {0x00, 0x0F, 0xAC, 0x06}; // Not yet final - IEEE 802.11s-D1.06
60 ========================================================================
63 The pseudo-random function(PRF) that hashes various inputs to
64 derive a pseudo-random value. To add liveness to the pseudo-random
65 value, a nonce should be one of the inputs.
67 It is used to generate PTK, GTK or some specific random value.
70 UCHAR *key, - the key material for HMAC_SHA1 use
71 INT key_len - the length of key
72 UCHAR *prefix - a prefix label
73 INT prefix_len - the length of the label
74 UCHAR *data - a specific data with variable length
75 INT data_len - the length of a specific data
76 INT len - the output lenght
79 UCHAR *output - the calculated result
82 802.11i-2004 Annex H.3
84 ========================================================================
101 // Allocate memory for input
102 os_alloc_mem(NULL, (PUCHAR *)&input, 1024);
106 DBGPRINT(RT_DEBUG_ERROR, ("!!!PRF: no memory!!!\n"));
110 // Generate concatenation input
111 NdisMoveMemory(input, prefix, prefix_len);
113 // Concatenate a single octet containing 0
114 input[prefix_len] = 0;
116 // Concatenate specific data
117 NdisMoveMemory(&input[prefix_len + 1], data, data_len);
118 total_len = prefix_len + 1 + data_len;
120 // Concatenate a single octet containing 0
121 // This octet shall be update later
122 input[total_len] = 0;
125 // Iterate to calculate the result by hmac-sha-1
126 // Then concatenate to last result
127 for (i = 0; i < (len + 19) / 20; i++)
129 HMAC_SHA1(input, total_len, key, key_len, &output[currentindex]);
132 // update the last octet
133 input[total_len - 1]++;
135 os_free_mem(NULL, input);
139 ========================================================================
142 It utilizes PRF-384 or PRF-512 to derive session-specific keys from a PMK.
143 It shall be called by 4-way handshake processing.
146 pAd - pointer to our pAdapter context
148 ANonce - pointer to ANonce
149 AA - pointer to Authenticator Address
150 SNonce - pointer to SNonce
151 SA - pointer to Supplicant Address
152 len - indicate the length of PTK (octet)
155 Output pointer to the PTK
158 Refer to IEEE 802.11i-2004 8.5.1.2
160 ========================================================================
163 IN PRTMP_ADAPTER pAd,
172 UCHAR concatenation[76];
175 UCHAR Prefix[] = {'P', 'a', 'i', 'r', 'w', 'i', 's', 'e', ' ', 'k', 'e', 'y', ' ',
176 'e', 'x', 'p', 'a', 'n', 's', 'i', 'o', 'n'};
178 // initiate the concatenation input
179 NdisZeroMemory(temp, sizeof(temp));
180 NdisZeroMemory(concatenation, 76);
182 // Get smaller address
183 if (RTMPCompareMemory(SA, AA, 6) == 1)
184 NdisMoveMemory(concatenation, AA, 6);
186 NdisMoveMemory(concatenation, SA, 6);
189 // Get larger address
190 if (RTMPCompareMemory(SA, AA, 6) == 1)
191 NdisMoveMemory(&concatenation[CurrPos], SA, 6);
193 NdisMoveMemory(&concatenation[CurrPos], AA, 6);
195 // store the larger mac address for backward compatible of
196 // ralink proprietary STA-key issue
197 NdisMoveMemory(temp, &concatenation[CurrPos], MAC_ADDR_LEN);
201 if (RTMPCompareMemory(ANonce, SNonce, 32) == 0)
202 NdisMoveMemory(&concatenation[CurrPos], temp, 32); // patch for ralink proprietary STA-key issue
203 else if (RTMPCompareMemory(ANonce, SNonce, 32) == 1)
204 NdisMoveMemory(&concatenation[CurrPos], SNonce, 32);
206 NdisMoveMemory(&concatenation[CurrPos], ANonce, 32);
210 if (RTMPCompareMemory(ANonce, SNonce, 32) == 0)
211 NdisMoveMemory(&concatenation[CurrPos], temp, 32); // patch for ralink proprietary STA-key issue
212 else if (RTMPCompareMemory(ANonce, SNonce, 32) == 1)
213 NdisMoveMemory(&concatenation[CurrPos], ANonce, 32);
215 NdisMoveMemory(&concatenation[CurrPos], SNonce, 32);
218 hex_dump("concatenation=", concatenation, 76);
220 // Use PRF to generate PTK
221 PRF(PMK, LEN_MASTER_KEY, Prefix, 22, concatenation, 76, output, len);
226 ========================================================================
229 Generate random number by software.
232 pAd - pointer to our pAdapter context
233 macAddr - pointer to local MAC address
238 802.1ii-2004 Annex H.5
240 ========================================================================
243 IN PRTMP_ADAPTER pAd,
248 UCHAR local[80], KeyCounter[32];
251 UCHAR prefix[] = {'I', 'n', 'i', 't', ' ', 'C', 'o', 'u', 'n', 't', 'e', 'r'};
253 // Zero the related information
254 NdisZeroMemory(result, 80);
255 NdisZeroMemory(local, 80);
256 NdisZeroMemory(KeyCounter, 32);
258 for (i = 0; i < 32; i++)
260 // copy the local MAC address
261 COPY_MAC_ADDR(local, macAddr);
264 // concatenate the current time
265 NdisGetSystemUpTime(&CurrentTime);
266 NdisMoveMemory(&local[curr], &CurrentTime, sizeof(CurrentTime));
267 curr += sizeof(CurrentTime);
269 // concatenate the last result
270 NdisMoveMemory(&local[curr], result, 32);
273 // concatenate a variable
274 NdisMoveMemory(&local[curr], &i, 2);
277 // calculate the result
278 PRF(KeyCounter, 32, prefix,12, local, curr, result, 32);
281 NdisMoveMemory(random, result, 32);
285 ========================================================================
288 Build cipher suite in RSN-IE.
289 It only shall be called by RTMPMakeRSNIE.
292 pAd - pointer to our pAdapter context
293 ElementID - indicate the WPA1 or WPA2
294 WepStatus - indicate the encryption type
295 bMixCipher - a boolean to indicate the pairwise cipher and group
296 cipher are the same or not
302 ========================================================================
304 static VOID RTMPInsertRsnIeCipher(
305 IN PRTMP_ADAPTER pAd,
308 IN BOOLEAN bMixCipher,
309 IN UCHAR FlexibleCipher,
317 // decide WPA2 or WPA1
318 if (ElementID == Wpa2Ie)
320 RSNIE2 *pRsnie_cipher = (RSNIE2*)pRsnIe;
322 // Assign the verson as 1
323 pRsnie_cipher->version = 1;
328 case Ndis802_11Encryption2Enabled:
329 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_TKIP, 4);
330 pRsnie_cipher->ucount = 1;
331 NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA2_TKIP, 4);
332 *rsn_len = sizeof(RSNIE2);
336 case Ndis802_11Encryption3Enabled:
338 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_TKIP, 4);
340 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_CCMP, 4);
341 pRsnie_cipher->ucount = 1;
342 NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA2_CCMP, 4);
343 *rsn_len = sizeof(RSNIE2);
347 case Ndis802_11Encryption4Enabled:
348 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_TKIP, 4);
351 // Insert WPA2 TKIP as the first pairwise cipher
352 if (MIX_CIPHER_WPA2_TKIP_ON(FlexibleCipher))
354 NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA2_TKIP, 4);
355 // Insert WPA2 AES as the secondary pairwise cipher
356 if (MIX_CIPHER_WPA2_AES_ON(FlexibleCipher))
358 NdisMoveMemory(pRsnie_cipher->ucast[0].oui + 4, OUI_WPA2_CCMP, 4);
364 // Insert WPA2 AES as the first pairwise cipher
365 NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA2_CCMP, 4);
368 pRsnie_cipher->ucount = PairwiseCnt;
369 *rsn_len = sizeof(RSNIE2) + (4 * (PairwiseCnt - 1));
373 if ((pAd->OpMode == OPMODE_STA) &&
374 (pAd->StaCfg.GroupCipher != Ndis802_11Encryption2Enabled) &&
375 (pAd->StaCfg.GroupCipher != Ndis802_11Encryption3Enabled))
377 UINT GroupCipher = pAd->StaCfg.GroupCipher;
380 case Ndis802_11GroupWEP40Enabled:
381 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_WEP40, 4);
383 case Ndis802_11GroupWEP104Enabled:
384 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_WEP104, 4);
389 // swap for big-endian platform
390 pRsnie_cipher->version = cpu2le16(pRsnie_cipher->version);
391 pRsnie_cipher->ucount = cpu2le16(pRsnie_cipher->ucount);
395 RSNIE *pRsnie_cipher = (RSNIE*)pRsnIe;
397 // Assign OUI and version
398 NdisMoveMemory(pRsnie_cipher->oui, OUI_WPA_VERSION, 4);
399 pRsnie_cipher->version = 1;
404 case Ndis802_11Encryption2Enabled:
405 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_TKIP, 4);
406 pRsnie_cipher->ucount = 1;
407 NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA_TKIP, 4);
408 *rsn_len = sizeof(RSNIE);
412 case Ndis802_11Encryption3Enabled:
414 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_TKIP, 4);
416 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_CCMP, 4);
417 pRsnie_cipher->ucount = 1;
418 NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA_CCMP, 4);
419 *rsn_len = sizeof(RSNIE);
423 case Ndis802_11Encryption4Enabled:
424 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_TKIP, 4);
427 // Insert WPA TKIP as the first pairwise cipher
428 if (MIX_CIPHER_WPA_TKIP_ON(FlexibleCipher))
430 NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA_TKIP, 4);
431 // Insert WPA AES as the secondary pairwise cipher
432 if (MIX_CIPHER_WPA_AES_ON(FlexibleCipher))
434 NdisMoveMemory(pRsnie_cipher->ucast[0].oui + 4, OUI_WPA_CCMP, 4);
440 // Insert WPA AES as the first pairwise cipher
441 NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA_CCMP, 4);
444 pRsnie_cipher->ucount = PairwiseCnt;
445 *rsn_len = sizeof(RSNIE) + (4 * (PairwiseCnt - 1));
449 if ((pAd->OpMode == OPMODE_STA) &&
450 (pAd->StaCfg.GroupCipher != Ndis802_11Encryption2Enabled) &&
451 (pAd->StaCfg.GroupCipher != Ndis802_11Encryption3Enabled))
453 UINT GroupCipher = pAd->StaCfg.GroupCipher;
456 case Ndis802_11GroupWEP40Enabled:
457 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_WEP40, 4);
459 case Ndis802_11GroupWEP104Enabled:
460 NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_WEP104, 4);
465 // swap for big-endian platform
466 pRsnie_cipher->version = cpu2le16(pRsnie_cipher->version);
467 pRsnie_cipher->ucount = cpu2le16(pRsnie_cipher->ucount);
472 ========================================================================
475 Build AKM suite in RSN-IE.
476 It only shall be called by RTMPMakeRSNIE.
479 pAd - pointer to our pAdapter context
480 ElementID - indicate the WPA1 or WPA2
481 AuthMode - indicate the authentication mode
482 apidx - indicate the interface index
488 ========================================================================
490 static VOID RTMPInsertRsnIeAKM(
491 IN PRTMP_ADAPTER pAd,
498 RSNIE_AUTH *pRsnie_auth;
500 pRsnie_auth = (RSNIE_AUTH*)(pRsnIe + (*rsn_len));
502 // decide WPA2 or WPA1
503 if (ElementID == Wpa2Ie)
507 case Ndis802_11AuthModeWPA2:
508 case Ndis802_11AuthModeWPA1WPA2:
509 pRsnie_auth->acount = 1;
510 NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA2_8021X_AKM, 4);
513 case Ndis802_11AuthModeWPA2PSK:
514 case Ndis802_11AuthModeWPA1PSKWPA2PSK:
515 pRsnie_auth->acount = 1;
516 NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA2_PSK_AKM, 4);
524 case Ndis802_11AuthModeWPA:
525 case Ndis802_11AuthModeWPA1WPA2:
526 pRsnie_auth->acount = 1;
527 NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA_8021X_AKM, 4);
530 case Ndis802_11AuthModeWPAPSK:
531 case Ndis802_11AuthModeWPA1PSKWPA2PSK:
532 pRsnie_auth->acount = 1;
533 NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA_PSK_AKM, 4);
536 case Ndis802_11AuthModeWPANone:
537 pRsnie_auth->acount = 1;
538 NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA_NONE_AKM, 4);
543 pRsnie_auth->acount = cpu2le16(pRsnie_auth->acount);
545 (*rsn_len) += sizeof(RSNIE_AUTH); // update current RSNIE length
550 ========================================================================
553 Build capability in RSN-IE.
554 It only shall be called by RTMPMakeRSNIE.
557 pAd - pointer to our pAdapter context
558 ElementID - indicate the WPA1 or WPA2
559 apidx - indicate the interface index
565 ========================================================================
567 static VOID RTMPInsertRsnIeCap(
568 IN PRTMP_ADAPTER pAd,
574 RSN_CAPABILITIES *pRSN_Cap;
576 // it could be ignored in WPA1 mode
577 if (ElementID == WpaIe)
580 pRSN_Cap = (RSN_CAPABILITIES*)(pRsnIe + (*rsn_len));
583 pRSN_Cap->word = cpu2le16(pRSN_Cap->word);
585 (*rsn_len) += sizeof(RSN_CAPABILITIES); // update current RSNIE length
591 ========================================================================
594 Build RSN IE context. It is not included element-ID and length.
597 pAd - pointer to our pAdapter context
598 AuthMode - indicate the authentication mode
599 WepStatus - indicate the encryption type
600 apidx - indicate the interface index
606 ========================================================================
609 IN PRTMP_ADAPTER pAd,
614 PUCHAR pRsnIe = NULL; // primary RSNIE
615 UCHAR *rsnielen_cur_p = 0; // the length of the primary RSNIE
616 UCHAR *rsnielen_ex_cur_p = 0; // the length of the secondary RSNIE
618 BOOLEAN bMixCipher = FALSE; // indicate the pairwise and group cipher are different
620 WPA_MIX_PAIR_CIPHER FlexibleCipher = WPA_TKIPAES_WPA2_TKIPAES; // it provide the more flexible cipher combination in WPA-WPA2 and TKIPAES mode
622 rsnielen_cur_p = NULL;
623 rsnielen_ex_cur_p = NULL;
627 if (pAd->StaCfg.WpaSupplicantUP != WPA_SUPPLICANT_DISABLE)
629 if (AuthMode < Ndis802_11AuthModeWPA)
634 // Support WPAPSK or WPA2PSK in STA-Infra mode
635 // Support WPANone in STA-Adhoc mode
636 if ((AuthMode != Ndis802_11AuthModeWPAPSK) &&
637 (AuthMode != Ndis802_11AuthModeWPA2PSK) &&
638 (AuthMode != Ndis802_11AuthModeWPANone)
643 DBGPRINT(RT_DEBUG_TRACE,("==> RTMPMakeRSNIE(STA)\n"));
645 // Zero RSNIE context
646 pAd->StaCfg.RSNIE_Len = 0;
647 NdisZeroMemory(pAd->StaCfg.RSN_IE, MAX_LEN_OF_RSNIE);
650 rsnielen_cur_p = &pAd->StaCfg.RSNIE_Len;
651 pRsnIe = pAd->StaCfg.RSN_IE;
653 bMixCipher = pAd->StaCfg.bMixCipher;
657 // indicate primary RSNIE as WPA or WPA2
658 if ((AuthMode == Ndis802_11AuthModeWPA) ||
659 (AuthMode == Ndis802_11AuthModeWPAPSK) ||
660 (AuthMode == Ndis802_11AuthModeWPANone) ||
661 (AuthMode == Ndis802_11AuthModeWPA1WPA2) ||
662 (AuthMode == Ndis802_11AuthModeWPA1PSKWPA2PSK))
663 PrimaryRsnie = WpaIe;
665 PrimaryRsnie = Wpa2Ie;
668 // Build the primary RSNIE
669 // 1. insert cipher suite
670 RTMPInsertRsnIeCipher(pAd, PrimaryRsnie, WepStatus, bMixCipher, FlexibleCipher, pRsnIe, &p_offset);
673 RTMPInsertRsnIeAKM(pAd, PrimaryRsnie, AuthMode, apidx, pRsnIe, &p_offset);
675 // 3. insert capability
676 RTMPInsertRsnIeCap(pAd, PrimaryRsnie, apidx, pRsnIe, &p_offset);
679 // 4. update the RSNIE length
680 *rsnielen_cur_p = p_offset;
682 hex_dump("The primary RSNIE", pRsnIe, (*rsnielen_cur_p));
688 ==========================================================================
690 Check whether the received frame is EAP frame.
693 pAd - pointer to our pAdapter context
694 pEntry - pointer to active entry
695 pData - the received frame
696 DataByteCount - the received frame's length
697 FromWhichBSSID - indicate the interface index
700 TRUE - This frame is EAP frame
702 ==========================================================================
704 BOOLEAN RTMPCheckWPAframe(
705 IN PRTMP_ADAPTER pAd,
706 IN PMAC_TABLE_ENTRY pEntry,
708 IN ULONG DataByteCount,
709 IN UCHAR FromWhichBSSID)
715 if(DataByteCount < (LENGTH_802_1_H + LENGTH_EAPOL_H))
720 if (NdisEqualMemory(SNAP_802_1H, pData, 6) ||
721 // Cisco 1200 AP may send packet with SNAP_BRIDGE_TUNNEL
722 NdisEqualMemory(SNAP_BRIDGE_TUNNEL, pData, 6))
726 // Skip 2-bytes EAPoL type
727 if (NdisEqualMemory(EAPOL, pData, 2))
737 Body_len = (*(pData+2)<<8) | (*(pData+3));
738 DBGPRINT(RT_DEBUG_TRACE, ("Receive EAP-Packet frame, TYPE = 0, Length = %ld\n", Body_len));
741 DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPOL-Start frame, TYPE = 1 \n"));
742 if (pEntry->EnqueueEapolStartTimerRunning != EAPOL_START_DISABLE)
744 DBGPRINT(RT_DEBUG_TRACE, ("Cancel the EnqueueEapolStartTimerRunning \n"));
745 RTMPCancelTimer(&pEntry->EnqueueStartForPSKTimer, &Cancelled);
746 pEntry->EnqueueEapolStartTimerRunning = EAPOL_START_DISABLE;
750 DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPOLLogoff frame, TYPE = 2 \n"));
753 Body_len = (*(pData+2)<<8) | (*(pData+3));
754 DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPOL-Key frame, TYPE = 3, Length = %ld\n", Body_len));
757 DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPOLASFAlert frame, TYPE = 4 \n"));
767 ========================================================================
770 Misc function to decrypt AES body
777 This function references to RFC 3394 for aes key unwrap algorithm.
779 ========================================================================
781 VOID AES_GTK_KEY_UNWRAP(
783 OUT UCHAR *plaintext,
785 IN UCHAR *ciphertext)
788 UCHAR A[8], BIN[16], BOUT[16];
793 INT num_blocks = c_len/8; // unit:64bits
796 os_alloc_mem(NULL, (PUCHAR *)&R, 512);
800 DBGPRINT(RT_DEBUG_ERROR, ("!!!AES_GTK_KEY_UNWRAP: no memory!!!\n"));
805 NdisMoveMemory(A, ciphertext, 8);
807 for(i = 0; i < (c_len-8); i++)
809 R[ i] = ciphertext[i + 8];
812 rtmp_aes_set_key(&aesctx, key, 128);
814 for(j = 5; j >= 0; j--)
816 for(i = (num_blocks-1); i > 0; i--)
818 xor = (num_blocks -1 )* j + i;
819 NdisMoveMemory(BIN, A, 8);
821 NdisMoveMemory(&BIN[8], &R[(i-1)*8], 8);
822 rtmp_aes_decrypt(&aesctx, BIN, BOUT);
823 NdisMoveMemory(A, &BOUT[0], 8);
824 NdisMoveMemory(&R[(i-1)*8], &BOUT[8], 8);
829 for(i = 0; i < c_len; i++)
835 os_free_mem(NULL, R);