X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/dca8220f729d7855b12c89ecb402958ce6dbc81b..03cdcca03fa921df1d1cc1d9e45ee04201b4d785:/client/cmdhflist.c diff --git a/client/cmdhflist.c b/client/cmdhflist.c index dc3d9640..cf69abba 100644 --- a/client/cmdhflist.c +++ b/client/cmdhflist.c @@ -43,6 +43,8 @@ void ClearAuthData() { AuthData.uid = 0; AuthData.nt = 0; AuthData.first_auth = true; + AuthData.ks2 = 0; + AuthData.ks3 = 0; } /** @@ -81,13 +83,122 @@ uint8_t mifare_CRC_check(bool isResponse, uint8_t* data, uint8_t len) } } +void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + switch(cmd[0]) + { + case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break; + case ICLASS_CMD_READ_OR_IDENTIFY:{ + if(cmdsize > 1){ + snprintf(exp,size,"READ(%d)",cmd[1]); + }else{ + snprintf(exp,size,"IDENTIFY"); + } + break; + } + case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break; + case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break; + case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break; + case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break; + case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break; + case ICLASS_CMD_DETECT: snprintf(exp,size,"DETECT"); break; + case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break; + case ICLASS_CMD_UPDATE: snprintf(exp,size,"UPDATE(%d)",cmd[1]); break; + case ICLASS_CMD_ACT: snprintf(exp,size,"ACT"); break; + case ICLASS_CMD_READ4: snprintf(exp,size,"READ4(%d)",cmd[1]); break; + default: snprintf(exp,size,"?"); break; + } + return; +} + +void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + + if(cmd[0] == 0x26) + { + switch(cmd[1]){ + case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");break; + case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");break; + default: snprintf(exp,size,"?"); break; + + } + }else if(cmd[0] == 0x02) + { + switch(cmd[1]) + { + case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");break; + case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");break; + case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");break; + case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");break; + case ISO15693_SELECT :snprintf(exp, size, "SELECT");break; + case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");break; + case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");break; + case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");break; + case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");break; + case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");break; + case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");break; + case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break; + default: snprintf(exp,size,"?"); break; + } + } +} + + +void annotateTopaz(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + switch(cmd[0]) { + case TOPAZ_REQA :snprintf(exp, size, "REQA");break; + case TOPAZ_WUPA :snprintf(exp, size, "WUPA");break; + case TOPAZ_RID :snprintf(exp, size, "RID");break; + case TOPAZ_RALL :snprintf(exp, size, "RALL");break; + case TOPAZ_READ :snprintf(exp, size, "READ");break; + case TOPAZ_WRITE_E :snprintf(exp, size, "WRITE-E");break; + case TOPAZ_WRITE_NE :snprintf(exp, size, "WRITE-NE");break; + case TOPAZ_RSEG :snprintf(exp, size, "RSEG");break; + case TOPAZ_READ8 :snprintf(exp, size, "READ8");break; + case TOPAZ_WRITE_E8 :snprintf(exp, size, "WRITE-E8");break; + case TOPAZ_WRITE_NE8 :snprintf(exp, size, "WRITE-NE8");break; + default: snprintf(exp,size,"?"); break; + } +} + + +/** +06 00 = INITIATE +0E xx = SELECT ID (xx = Chip-ID) +0B = Get UID +08 yy = Read Block (yy = block number) +09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written) +0C = Reset to Inventory +0F = Completion +0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate) +**/ + +void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) +{ + switch(cmd[0]){ + case ISO14443B_REQB : snprintf(exp,size,"REQB");break; + case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break; + case ISO14443B_HALT : snprintf(exp,size,"HALT");break; + case ISO14443B_INITIATE : snprintf(exp,size,"INITIATE");break; + case ISO14443B_SELECT : snprintf(exp,size,"SELECT(%d)",cmd[1]);break; + case ISO14443B_GET_UID : snprintf(exp,size,"GET UID");break; + case ISO14443B_READ_BLK : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break; + case ISO14443B_WRITE_BLK : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break; + case ISO14443B_RESET : snprintf(exp,size,"RESET");break; + case ISO14443B_COMPLETION : snprintf(exp,size,"COMPLETION");break; + case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break; + default : snprintf(exp,size ,"?");break; + } + +} + void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) { switch(cmd[0]) { case ISO14443A_CMD_WUPA: snprintf(exp,size,"WUPA"); - MifareAuthState = masNone; break; case ISO14443A_CMD_ANTICOLL_OR_SELECT:{ // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor) @@ -113,7 +224,6 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) } case ISO14443A_CMD_REQA: snprintf(exp,size,"REQA"); - MifareAuthState = masNone; break; case ISO14443A_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break; case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break; @@ -187,6 +297,17 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) } void annotateMifare(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize, uint8_t* parity, uint8_t paritysize, bool isResponse) { + if (!isResponse && cmdsize == 1) { + switch(cmd[0]) { + case ISO14443A_CMD_WUPA: + case ISO14443A_CMD_REQA: + MifareAuthState = masNone; + break; + default: + break; + } + } + // get UID if (MifareAuthState == masNone) { if (cmdsize == 9 && cmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT && cmd[1] == 0x70) { @@ -204,11 +325,12 @@ void annotateMifare(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize, uint8 if (cmdsize == 4 && isResponse) { snprintf(exp,size,"AUTH: nt %s", (AuthData.first_auth) ? "" : "(enc)"); MifareAuthState = masNrAr; - if (AuthData.first_auth) + if (AuthData.first_auth) { AuthData.nt = bytes_to_num(cmd, 4); - else + } else { AuthData.nt_enc = bytes_to_num(cmd, 4); AuthData.nt_enc_par = parity[0]; + } return; } else { MifareAuthState = masError; @@ -246,7 +368,7 @@ void annotateMifare(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize, uint8 } -bool DecodeMifareData(uint8_t *cmd, uint8_t cmdsize, bool isResponse, uint8_t *mfData, size_t *mfDataLen) { +bool DecodeMifareData(uint8_t *cmd, uint8_t cmdsize, uint8_t *parity, bool isResponse, uint8_t *mfData, size_t *mfDataLen) { static struct Crypto1State *traceCrypto1; static uint64_t mfLastKey; @@ -255,6 +377,7 @@ bool DecodeMifareData(uint8_t *cmd, uint8_t cmdsize, bool isResponse, uint8_t *m if (MifareAuthState == masAuthComplete) { if (traceCrypto1) { crypto1_destroy(traceCrypto1); + traceCrypto1 = NULL; } MifareAuthState = masFirstData; @@ -266,49 +389,116 @@ bool DecodeMifareData(uint8_t *cmd, uint8_t cmdsize, bool isResponse, uint8_t *m if (MifareAuthState == masFirstData) { if (AuthData.first_auth) { - uint32_t ks2 = AuthData.ar_enc ^ prng_successor(AuthData.nt, 64); - uint32_t ks3 = AuthData.at_enc ^ prng_successor(AuthData.nt, 96); - struct Crypto1State *revstate = lfsr_recovery64(ks2, ks3); - lfsr_rollback_word(revstate, 0, 0); - lfsr_rollback_word(revstate, 0, 0); - lfsr_rollback_word(revstate, AuthData.nr_enc, 1); - lfsr_rollback_word(revstate, AuthData.uid ^ AuthData.nt, 0); - - uint64_t lfsr = 0; - crypto1_get_lfsr(revstate, &lfsr); - crypto1_destroy(revstate); - mfLastKey = lfsr; - PrintAndLog(" | * | key | probable key:%x%x Prng:%s ks2:%08x ks3:%08x | |", - (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF), + AuthData.ks2 = AuthData.ar_enc ^ prng_successor(AuthData.nt, 64); + AuthData.ks3 = AuthData.at_enc ^ prng_successor(AuthData.nt, 96); + + mfLastKey = GetCrypto1ProbableKey(&AuthData); + PrintAndLog(" | * | key | probable key:%012"PRIx64" Prng:%s ks2:%08x ks3:%08x | |", + mfLastKey, validate_prng_nonce(AuthData.nt) ? "WEAK": "HARD", - ks2, - ks3); + AuthData.ks2, + AuthData.ks3); AuthData.first_auth = false; - traceCrypto1 = lfsr_recovery64(ks2, ks3); + traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3); } else { - printf("uid:%x nt:%x ar_enc:%x at_enc:%x\n", AuthData.uid, AuthData.nt, AuthData.ar_enc, AuthData.at_enc); - + if (traceCrypto1) { + crypto1_destroy(traceCrypto1); + traceCrypto1 = NULL; + } + // check last used key if (mfLastKey) { - if (NestedCheckKey(mfLastKey, &AuthData, cmd, cmdsize)) { + if (NestedCheckKey(mfLastKey, &AuthData, cmd, cmdsize, parity)) { + PrintAndLog(" | * | key | last used key:%012"PRIx64" ks2:%08x ks3:%08x | |", + mfLastKey, + AuthData.ks2, + AuthData.ks3); + + traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3); }; } // check default keys - for (int defaultKeyCounter = 0; defaultKeyCounter < MifareDefaultKeysSize; defaultKeyCounter++){ - if (NestedCheckKey(MifareDefaultKeys[defaultKeyCounter], &AuthData, cmd, cmdsize)) { - - break; - }; + if (!traceCrypto1) { + for (int defaultKeyCounter = 0; defaultKeyCounter < MifareDefaultKeysSize; defaultKeyCounter++){ + if (NestedCheckKey(MifareDefaultKeys[defaultKeyCounter], &AuthData, cmd, cmdsize, parity)) { + PrintAndLog(" | * | key | default key:%012"PRIx64" ks2:%08x ks3:%08x | |", + MifareDefaultKeys[defaultKeyCounter], + AuthData.ks2, + AuthData.ks3); + + mfLastKey = MifareDefaultKeys[defaultKeyCounter]; + traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3); + break; + }; + } } // nested - if (validate_prng_nonce(AuthData.nt)) { + if (!traceCrypto1 && validate_prng_nonce(AuthData.nt)) { + uint32_t ntx = prng_successor(AuthData.nt, 90); + for (int i = 0; i < 16383; i++) { + ntx = prng_successor(ntx, 1); + if (NTParityChk(&AuthData, ntx)){ + + uint32_t ks2 = AuthData.ar_enc ^ prng_successor(ntx, 64); + uint32_t ks3 = AuthData.at_enc ^ prng_successor(ntx, 96); + struct Crypto1State *pcs = lfsr_recovery64(ks2, ks3); + memcpy(mfData, cmd, cmdsize); + mf_crypto1_decrypt(pcs, mfData, cmdsize, 0); + + crypto1_destroy(pcs); + if (CheckCrypto1Parity(cmd, cmdsize, mfData, parity) && CheckCrc14443(CRC_14443_A, mfData, cmdsize)) { + AuthData.ks2 = ks2; + AuthData.ks3 = ks3; + + AuthData.nt = ntx; + mfLastKey = GetCrypto1ProbableKey(&AuthData); + PrintAndLog(" | * | key | nested probable key:%012"PRIx64" ks2:%08x ks3:%08x | |", + mfLastKey, + AuthData.ks2, + AuthData.ks3); + + traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3); + break; + } + } + } } //hardnested + if (!traceCrypto1) { + printf("hardnested not implemented. uid:%x nt:%x ar_enc:%x at_enc:%x\n", AuthData.uid, AuthData.nt, AuthData.ar_enc, AuthData.at_enc); + MifareAuthState = masError; + + /* TOO SLOW( needs to have more strong filter. with this filter - aprox 4 mln tests + uint32_t t = msclock(); + uint32_t t1 = t; + int n = 0; + for (uint32_t i = 0; i < 0xFFFFFFFF; i++) { + if (NTParityChk(&AuthData, i)){ + + uint32_t ks2 = AuthData.ar_enc ^ prng_successor(i, 64); + uint32_t ks3 = AuthData.at_enc ^ prng_successor(i, 96); + struct Crypto1State *pcs = lfsr_recovery64(ks2, ks3); + + + + + n++; + + if (!(n % 100000)) { + printf("delta=%d n=%d ks2=%x ks3=%x \n", msclock() - t1 , n, ks2, ks3); + t1 = msclock(); + } + + } + } + printf("delta=%d n=%d\n", msclock() - t, n); + */ + } } @@ -353,29 +543,63 @@ bool NTParityChk(TAuthData *ad, uint32_t ntx) { return true; } -bool NestedCheckKey(uint64_t key, TAuthData *ad, uint8_t *cmd, uint8_t cmdsize) { +bool NestedCheckKey(uint64_t key, TAuthData *ad, uint8_t *cmd, uint8_t cmdsize, uint8_t *parity) { uint8_t buf[32] = {0}; struct Crypto1State *pcs; + AuthData.ks2 = 0; + AuthData.ks3 = 0; + pcs = crypto1_create(key); uint32_t nt1 = crypto1_word(pcs, ad->nt_enc ^ ad->uid, 1) ^ ad->nt_enc; uint32_t ar = prng_successor(nt1, 64); uint32_t at = prng_successor(nt1, 96); - printf("key> nested auth uid: %08x nt: %08x nt_parity: %s ar: %08x at: %08x\n", ad->uid, nt1, printBitsPar(&ad->nt_enc_par, 4), ar, at); - uint32_t nr1 = crypto1_word(pcs, ad->nr_enc, 1) ^ ad->nr_enc; + + crypto1_word(pcs, ad->nr_enc, 1); +// uint32_t nr1 = crypto1_word(pcs, ad->nr_enc, 1) ^ ad->nr_enc; // if needs deciphered nr uint32_t ar1 = crypto1_word(pcs, 0, 0) ^ ad->ar_enc; uint32_t at1 = crypto1_word(pcs, 0, 0) ^ ad->at_enc; - printf("key> the same key test. nr1: %08x ar1: %08x at1: %08x \n", nr1, ar1, at1); - if (NTParityChk(ad, nt1)) - printf("key> the same key test OK. key=%x%x\n", (unsigned int)((key & 0xFFFFFFFF00000000) >> 32), (unsigned int)(key & 0xFFFFFFFF)); - else { - printf("key> the same key test. check nt parity error.\n"); + if (!(ar == ar1 && at == at1 && NTParityChk(ad, nt1))) return false; - } memcpy(buf, cmd, cmdsize); mf_crypto1_decrypt(pcs, buf, cmdsize, 0); - return CheckCrc14443(CRC_14443_A, buf, cmdsize); -} \ No newline at end of file + crypto1_destroy(pcs); + + if (!CheckCrypto1Parity(cmd, cmdsize, buf, parity)) + return false; + + if(!CheckCrc14443(CRC_14443_A, buf, cmdsize)) + return false; + + AuthData.nt = nt1; + AuthData.ks2 = AuthData.ar_enc ^ ar; + AuthData.ks3 = AuthData.at_enc ^ at; + + return true; +} + +bool CheckCrypto1Parity(uint8_t *cmd_enc, uint8_t cmdsize, uint8_t *cmd, uint8_t *parity_enc) { + for (int i = 0; i < cmdsize - 1; i++) { + if (oddparity8(cmd[i]) ^ (cmd[i + 1] & 0x01) ^ ((parity_enc[i / 8] >> (7 - i % 8)) & 0x01) ^ (cmd_enc[i + 1] & 0x01)) + return false; + } + + return true; +} + +uint64_t GetCrypto1ProbableKey(TAuthData *ad) { + struct Crypto1State *revstate = lfsr_recovery64(ad->ks2, ad->ks3); + lfsr_rollback_word(revstate, 0, 0); + lfsr_rollback_word(revstate, 0, 0); + lfsr_rollback_word(revstate, ad->nr_enc, 1); + lfsr_rollback_word(revstate, ad->uid ^ ad->nt, 0); + + uint64_t lfsr = 0; + crypto1_get_lfsr(revstate, &lfsr); + crypto1_destroy(revstate); + + return lfsr; +}