mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2025-08-14 18:48:13 -07:00
make style
This commit is contained in:
Philippe Teuwen
parent
0d9223a547
commit
0373696662
483 changed files with 56514 additions and 52451 deletions
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@ -26,9 +26,9 @@
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static uint8_t filterlut[1 << 20];
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static void __attribute__((constructor)) fill_lut()
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{
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uint32_t i;
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for(i = 0; i < 1 << 20; ++i)
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filterlut[i] = filter(i);
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uint32_t i;
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for (i = 0; i < 1 << 20; ++i)
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filterlut[i] = filter(i);
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}
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#define filter(x) (filterlut[(x) & 0xfffff])
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#endif
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@ -51,12 +51,12 @@ static inline void update_contribution(uint32_t *item, const uint32_t mask1, con
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static inline void extend_table(uint32_t *tbl, uint32_t **end, int bit, int m1, int m2, uint32_t in)
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{
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in <<= 24;
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for(*tbl <<= 1; tbl <= *end; *++tbl <<= 1)
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if(filter(*tbl) ^ filter(*tbl | 1)) {
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for (*tbl <<= 1; tbl <= *end; *++tbl <<= 1)
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if (filter(*tbl) ^ filter(*tbl | 1)) {
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*tbl |= filter(*tbl) ^ bit;
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update_contribution(tbl, m1, m2);
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*tbl ^= in;
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} else if(filter(*tbl) == bit) {
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} else if (filter(*tbl) == bit) {
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*++*end = tbl[1];
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tbl[1] = tbl[0] | 1;
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update_contribution(tbl, m1, m2);
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@ -71,32 +71,32 @@ static inline void extend_table(uint32_t *tbl, uint32_t **end, int bit, int m1,
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*/
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static inline void extend_table_simple(uint32_t *tbl, uint32_t **end, int bit)
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{
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for(*tbl <<= 1; tbl <= *end; *++tbl <<= 1) {
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if(filter(*tbl) ^ filter(*tbl | 1)) { // replace
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for (*tbl <<= 1; tbl <= *end; *++tbl <<= 1) {
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if (filter(*tbl) ^ filter(*tbl | 1)) { // replace
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*tbl |= filter(*tbl) ^ bit;
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} else if(filter(*tbl) == bit) { // insert
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} else if (filter(*tbl) == bit) { // insert
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*++*end = *++tbl;
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*tbl = tbl[-1] | 1;
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} else { // drop
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*tbl-- = *(*end)--;
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}
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}
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}
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}
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/** recover
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* recursively narrow down the search space, 4 bits of keystream at a time
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*/
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static struct Crypto1State*
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static struct Crypto1State *
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recover(uint32_t *o_head, uint32_t *o_tail, uint32_t oks,
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uint32_t *e_head, uint32_t *e_tail, uint32_t eks, int rem,
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struct Crypto1State *sl, uint32_t in, bucket_array_t bucket)
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uint32_t *e_head, uint32_t *e_tail, uint32_t eks, int rem,
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struct Crypto1State *sl, uint32_t in, bucket_array_t bucket)
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{
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uint32_t *o, *e;
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bucket_info_t bucket_info;
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if(rem == -1) {
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for(e = e_head; e <= e_tail; ++e) {
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if (rem == -1) {
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for (e = e_head; e <= e_tail; ++e) {
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*e = *e << 1 ^ evenparity32(*e & LF_POLY_EVEN) ^ !!(in & 4);
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for(o = o_head; o <= o_tail; ++o, ++sl) {
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for (o = o_head; o <= o_tail; ++o, ++sl) {
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sl->even = *o;
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sl->odd = *e ^ evenparity32(*o & LF_POLY_ODD);
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sl[1].odd = sl[1].even = 0;
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@ -105,16 +105,16 @@ recover(uint32_t *o_head, uint32_t *o_tail, uint32_t oks,
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return sl;
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}
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for(uint32_t i = 0; i < 4 && rem--; i++) {
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for (uint32_t i = 0; i < 4 && rem--; i++) {
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oks >>= 1;
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eks >>= 1;
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in >>= 2;
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extend_table(o_head, &o_tail, oks & 1, LF_POLY_EVEN << 1 | 1, LF_POLY_ODD << 1, 0);
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if(o_head > o_tail)
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if (o_head > o_tail)
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return sl;
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extend_table(e_head, &e_tail, eks & 1, LF_POLY_ODD, LF_POLY_EVEN << 1 | 1, in & 3);
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if(e_head > e_tail)
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if (e_head > e_tail)
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return sl;
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}
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@ -133,7 +133,7 @@ recover(uint32_t *o_head, uint32_t *o_tail, uint32_t oks,
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* additionally you can use the in parameter to specify the value
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* that was fed into the lfsr at the time the keystream was generated
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*/
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struct Crypto1State* lfsr_recovery32(uint32_t ks2, uint32_t in)
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struct Crypto1State *lfsr_recovery32(uint32_t ks2, uint32_t in)
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{
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struct Crypto1State *statelist;
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uint32_t *odd_head = 0, *odd_tail = 0, oks = 0;
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@ -170,15 +170,15 @@ struct Crypto1State* lfsr_recovery32(uint32_t ks2, uint32_t in)
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}
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// initialize statelists: add all possible states which would result into the rightmost 2 bits of the keystream
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for(i = 1 << 20; i >= 0; --i) {
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if(filter(i) == (oks & 1))
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for (i = 1 << 20; i >= 0; --i) {
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if (filter(i) == (oks & 1))
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*++odd_tail = i;
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if(filter(i) == (eks & 1))
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if (filter(i) == (eks & 1))
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*++even_tail = i;
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}
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// extend the statelists. Look at the next 8 Bits of the keystream (4 Bit each odd and even):
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for(i = 0; i < 4; i++) {
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for (i = 0; i < 4; i++) {
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extend_table_simple(odd_head, &odd_tail, (oks >>= 1) & 1);
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extend_table_simple(even_head, &even_tail, (eks >>= 1) & 1);
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}
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@ -199,29 +199,33 @@ out:
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}
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static const uint32_t S1[] = { 0x62141, 0x310A0, 0x18850, 0x0C428, 0x06214,
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0x0310A, 0x85E30, 0xC69AD, 0x634D6, 0xB5CDE, 0xDE8DA, 0x6F46D, 0xB3C83,
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0x59E41, 0xA8995, 0xD027F, 0x6813F, 0x3409F, 0x9E6FA};
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0x0310A, 0x85E30, 0xC69AD, 0x634D6, 0xB5CDE, 0xDE8DA, 0x6F46D, 0xB3C83,
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0x59E41, 0xA8995, 0xD027F, 0x6813F, 0x3409F, 0x9E6FA
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};
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static const uint32_t S2[] = { 0x3A557B00, 0x5D2ABD80, 0x2E955EC0, 0x174AAF60,
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0x0BA557B0, 0x05D2ABD8, 0x0449DE68, 0x048464B0, 0x42423258, 0x278192A8,
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0x156042D0, 0x0AB02168, 0x43F89B30, 0x61FC4D98, 0x765EAD48, 0x7D8FDD20,
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0x7EC7EE90, 0x7F63F748, 0x79117020};
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0x0BA557B0, 0x05D2ABD8, 0x0449DE68, 0x048464B0, 0x42423258, 0x278192A8,
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0x156042D0, 0x0AB02168, 0x43F89B30, 0x61FC4D98, 0x765EAD48, 0x7D8FDD20,
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0x7EC7EE90, 0x7F63F748, 0x79117020
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};
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static const uint32_t T1[] = {
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0x4F37D, 0x279BE, 0x97A6A, 0x4BD35, 0x25E9A, 0x12F4D, 0x097A6, 0x80D66,
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0xC4006, 0x62003, 0xB56B4, 0x5AB5A, 0xA9318, 0xD0F39, 0x6879C, 0xB057B,
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0x582BD, 0x2C15E, 0x160AF, 0x8F6E2, 0xC3DC4, 0xE5857, 0x72C2B, 0x39615,
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0x98DBF, 0xC806A, 0xE0680, 0x70340, 0x381A0, 0x98665, 0x4C332, 0xA272C};
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0x98DBF, 0xC806A, 0xE0680, 0x70340, 0x381A0, 0x98665, 0x4C332, 0xA272C
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};
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static const uint32_t T2[] = { 0x3C88B810, 0x5E445C08, 0x2982A580, 0x14C152C0,
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0x4A60A960, 0x253054B0, 0x52982A58, 0x2FEC9EA8, 0x1156C4D0, 0x08AB6268,
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0x42F53AB0, 0x217A9D58, 0x161DC528, 0x0DAE6910, 0x46D73488, 0x25CB11C0,
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0x52E588E0, 0x6972C470, 0x34B96238, 0x5CFC3A98, 0x28DE96C8, 0x12CFC0E0,
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0x4967E070, 0x64B3F038, 0x74F97398, 0x7CDC3248, 0x38CE92A0, 0x1C674950,
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0x0E33A4A8, 0x01B959D0, 0x40DCACE8, 0x26CEDDF0};
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0x4A60A960, 0x253054B0, 0x52982A58, 0x2FEC9EA8, 0x1156C4D0, 0x08AB6268,
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0x42F53AB0, 0x217A9D58, 0x161DC528, 0x0DAE6910, 0x46D73488, 0x25CB11C0,
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0x52E588E0, 0x6972C470, 0x34B96238, 0x5CFC3A98, 0x28DE96C8, 0x12CFC0E0,
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0x4967E070, 0x64B3F038, 0x74F97398, 0x7CDC3248, 0x38CE92A0, 0x1C674950,
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0x0E33A4A8, 0x01B959D0, 0x40DCACE8, 0x26CEDDF0
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};
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static const uint32_t C1[] = { 0x846B5, 0x4235A, 0x211AD};
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static const uint32_t C2[] = { 0x1A822E0, 0x21A822E0, 0x21A822E0};
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/** Reverse 64 bits of keystream into possible cipher states
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* Variation mentioned in the paper. Somewhat optimized version
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*/
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struct Crypto1State* lfsr_recovery64(uint32_t ks2, uint32_t ks3)
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struct Crypto1State *lfsr_recovery64(uint32_t ks2, uint32_t ks3)
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{
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struct Crypto1State *statelist, *sl;
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uint8_t oks[32], eks[32], hi[32];
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@ -230,50 +234,50 @@ struct Crypto1State* lfsr_recovery64(uint32_t ks2, uint32_t ks3)
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int i, j;
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sl = statelist = malloc(sizeof(struct Crypto1State) << 4);
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if(!sl)
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if (!sl)
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return 0;
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sl->odd = sl->even = 0;
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for(i = 30; i >= 0; i -= 2) {
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for (i = 30; i >= 0; i -= 2) {
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oks[i >> 1] = BEBIT(ks2, i);
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oks[16 + (i >> 1)] = BEBIT(ks3, i);
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}
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for(i = 31; i >= 0; i -= 2) {
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for (i = 31; i >= 0; i -= 2) {
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eks[i >> 1] = BEBIT(ks2, i);
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eks[16 + (i >> 1)] = BEBIT(ks3, i);
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}
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for(i = 0xfffff; i >= 0; --i) {
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for (i = 0xfffff; i >= 0; --i) {
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if (filter(i) != oks[0])
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continue;
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*(tail = table) = i;
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for(j = 1; tail >= table && j < 29; ++j)
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for (j = 1; tail >= table && j < 29; ++j)
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extend_table_simple(table, &tail, oks[j]);
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if(tail < table)
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if (tail < table)
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continue;
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for(j = 0; j < 19; ++j)
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for (j = 0; j < 19; ++j)
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low = low << 1 | evenparity32(i & S1[j]);
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for(j = 0; j < 32; ++j)
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for (j = 0; j < 32; ++j)
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hi[j] = evenparity32(i & T1[j]);
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for(; tail >= table; --tail) {
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for(j = 0; j < 3; ++j) {
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for (; tail >= table; --tail) {
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for (j = 0; j < 3; ++j) {
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*tail = *tail << 1;
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*tail |= evenparity32((i & C1[j]) ^ (*tail & C2[j]));
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if(filter(*tail) != oks[29 + j])
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if (filter(*tail) != oks[29 + j])
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goto continue2;
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}
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for(j = 0; j < 19; ++j)
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for (j = 0; j < 19; ++j)
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win = win << 1 | evenparity32(*tail & S2[j]);
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win ^= low;
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for(j = 0; j < 32; ++j) {
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for (j = 0; j < 32; ++j) {
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win = win << 1 ^ hi[j] ^ evenparity32(*tail & T2[j]);
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if(filter(win) != eks[j])
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if (filter(win) != eks[j])
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goto continue2;
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}
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@ -282,7 +286,8 @@ struct Crypto1State* lfsr_recovery64(uint32_t ks2, uint32_t ks3)
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sl->even = win;
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++sl;
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sl->odd = sl->even = 0;
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continue2:;
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continue2:
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;
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}
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}
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return statelist;
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@ -377,9 +382,9 @@ static uint16_t *dist = 0;
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int nonce_distance(uint32_t from, uint32_t to)
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{
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uint16_t x, i;
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if(!dist) {
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if (!dist) {
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dist = calloc(2 << 16, sizeof(uint8_t));
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if(!dist)
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if (!dist)
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return -1;
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for (x = i = 1; i; ++i) {
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dist[(x & 0xff) << 8 | x >> 8] = i;
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@ -395,7 +400,8 @@ int nonce_distance(uint32_t from, uint32_t to)
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* true = weak prng
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* false = hardend prng
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*/
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bool validate_prng_nonce(uint32_t nonce) {
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bool validate_prng_nonce(uint32_t nonce)
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{
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// init prng table:
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nonce_distance(nonce, nonce);
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return ((65535 - dist[nonce >> 16] + dist[nonce & 0xffff]) % 65535) == 16;
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@ -403,7 +409,8 @@ bool validate_prng_nonce(uint32_t nonce) {
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static uint32_t fastfwd[2][8] = {
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{ 0, 0x4BC53, 0xECB1, 0x450E2, 0x25E29, 0x6E27A, 0x2B298, 0x60ECB},
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{ 0, 0x1D962, 0x4BC53, 0x56531, 0xECB1, 0x135D3, 0x450E2, 0x58980}};
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{ 0, 0x1D962, 0x4BC53, 0x56531, 0xECB1, 0x135D3, 0x450E2, 0x58980}
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};
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/** lfsr_prefix_ks
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*
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@ -440,11 +447,11 @@ uint32_t *lfsr_prefix_ks(uint8_t ks[8], int isodd)
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/** check_pfx_parity
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* helper function which eliminates possible secret states using parity bits
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*/
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static struct Crypto1State* check_pfx_parity(uint32_t prefix, uint32_t rresp, uint8_t parities[8][8], uint32_t odd, uint32_t even, struct Crypto1State* sl, uint32_t no_par)
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static struct Crypto1State *check_pfx_parity(uint32_t prefix, uint32_t rresp, uint8_t parities[8][8], uint32_t odd, uint32_t even, struct Crypto1State *sl, uint32_t no_par)
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{
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uint32_t ks1, nr, ks2, rr, ks3, c, good = 1;
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for(c = 0; good && c < 8; ++c) {
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for (c = 0; good && c < 8; ++c) {
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sl->odd = odd ^ fastfwd[1][c];
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sl->even = even ^ fastfwd[0][c];
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@ -482,7 +489,7 @@ static struct Crypto1State* check_pfx_parity(uint32_t prefix, uint32_t rresp, ui
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* tag nonce was fed in
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*/
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struct Crypto1State* lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8], uint8_t par[8][8], uint32_t no_par)
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struct Crypto1State *lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8], uint8_t par[8][8], uint32_t no_par)
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{
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struct Crypto1State *statelist, *s;
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uint32_t *odd, *even, *o, *e, top;
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@ -490,7 +497,7 @@ struct Crypto1State* lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8]
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odd = lfsr_prefix_ks(ks, 1);
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even = lfsr_prefix_ks(ks, 0);
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|
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s = statelist = malloc((sizeof *statelist) << 24); // was << 20. Need more for no_par special attack. Enough???
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s = statelist = malloc((sizeof * statelist) << 24); // was << 20. Need more for no_par special attack. Enough???
|
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if (!s || !odd || !even) {
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free(statelist);
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statelist = 0;
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|
|
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|
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@ -33,23 +33,23 @@ void crypto1_create(struct Crypto1State *s, uint64_t key);
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#else
|
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struct Crypto1State *crypto1_create(uint64_t key);
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#endif
|
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void crypto1_destroy(struct Crypto1State*);
|
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void crypto1_get_lfsr(struct Crypto1State*, uint64_t*);
|
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uint8_t crypto1_bit(struct Crypto1State*, uint8_t, int);
|
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uint8_t crypto1_byte(struct Crypto1State*, uint8_t, int);
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uint32_t crypto1_word(struct Crypto1State*, uint32_t, int);
|
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void crypto1_destroy(struct Crypto1State *);
|
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void crypto1_get_lfsr(struct Crypto1State *, uint64_t *);
|
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uint8_t crypto1_bit(struct Crypto1State *, uint8_t, int);
|
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uint8_t crypto1_byte(struct Crypto1State *, uint8_t, int);
|
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uint32_t crypto1_word(struct Crypto1State *, uint32_t, int);
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uint32_t prng_successor(uint32_t x, uint32_t n);
|
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|
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struct Crypto1State* lfsr_recovery32(uint32_t ks2, uint32_t in);
|
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struct Crypto1State* lfsr_recovery64(uint32_t ks2, uint32_t ks3);
|
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struct Crypto1State *lfsr_recovery32(uint32_t ks2, uint32_t in);
|
||||
struct Crypto1State *lfsr_recovery64(uint32_t ks2, uint32_t ks3);
|
||||
uint32_t *lfsr_prefix_ks(uint8_t ks[8], int isodd);
|
||||
struct Crypto1State*
|
||||
struct Crypto1State *
|
||||
lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8], uint8_t par[8][8], uint32_t no_par);
|
||||
|
||||
|
||||
uint8_t lfsr_rollback_bit(struct Crypto1State* s, uint32_t in, int fb);
|
||||
uint8_t lfsr_rollback_byte(struct Crypto1State* s, uint32_t in, int fb);
|
||||
uint32_t lfsr_rollback_word(struct Crypto1State* s, uint32_t in, int fb);
|
||||
uint8_t lfsr_rollback_bit(struct Crypto1State *s, uint32_t in, int fb);
|
||||
uint8_t lfsr_rollback_byte(struct Crypto1State *s, uint32_t in, int fb);
|
||||
uint32_t lfsr_rollback_word(struct Crypto1State *s, uint32_t in, int fb);
|
||||
int nonce_distance(uint32_t from, uint32_t to);
|
||||
extern bool validate_prng_nonce(uint32_t nonce);
|
||||
#define FOREACH_VALID_NONCE(N, FILTER, FSIZE)\
|
||||
|
|
|
|||
|
|
@ -30,7 +30,7 @@ void crypto1_create(struct Crypto1State *s, uint64_t key)
|
|||
{
|
||||
int i;
|
||||
|
||||
for(i = 47;s && i > 0; i -= 2) {
|
||||
for (i = 47; s && i > 0; i -= 2) {
|
||||
s->odd = s->odd << 1 | BIT(key, (i - 1) ^ 7);
|
||||
s->even = s->even << 1 | BIT(key, i ^ 7);
|
||||
}
|
||||
|
|
@ -42,15 +42,15 @@ void crypto1_destroy(struct Crypto1State *state)
|
|||
state->even = 0;
|
||||
}
|
||||
#else
|
||||
struct Crypto1State * crypto1_create(uint64_t key)
|
||||
struct Crypto1State *crypto1_create(uint64_t key)
|
||||
{
|
||||
struct Crypto1State *s = malloc(sizeof(*s));
|
||||
if ( !s ) return NULL;
|
||||
if (!s) return NULL;
|
||||
|
||||
s->odd = s->even = 0;
|
||||
|
||||
int i;
|
||||
for(i = 47; i > 0; i -= 2) {
|
||||
for (i = 47; i > 0; i -= 2) {
|
||||
s->odd = s->odd << 1 | BIT(key, (i - 1) ^ 7);
|
||||
s->even = s->even << 1 | BIT(key, i ^ 7);
|
||||
}
|
||||
|
|
@ -64,7 +64,7 @@ void crypto1_destroy(struct Crypto1State *state)
|
|||
void crypto1_get_lfsr(struct Crypto1State *state, uint64_t *lfsr)
|
||||
{
|
||||
int i;
|
||||
for(*lfsr = 0, i = 23; i >= 0; --i) {
|
||||
for (*lfsr = 0, i = 23; i >= 0; --i) {
|
||||
*lfsr = *lfsr << 1 | BIT(state->odd, i ^ 3);
|
||||
*lfsr = *lfsr << 1 | BIT(state->even, i ^ 3);
|
||||
}
|
||||
|
|
@ -146,7 +146,7 @@ uint32_t crypto1_word(struct Crypto1State *s, uint32_t in, int is_encrypted)
|
|||
uint32_t prng_successor(uint32_t x, uint32_t n)
|
||||
{
|
||||
SWAPENDIAN(x);
|
||||
while(n--)
|
||||
while (n--)
|
||||
x = x >> 1 | (x >> 16 ^ x >> 18 ^ x >> 19 ^ x >> 21) << 31;
|
||||
|
||||
return SWAPENDIAN(x);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue