X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/089d061f2d8dd77840db5968992144474cb36b7c..5eceba292f639ba9ff50a2e85d2358e93cfcd541:/client/nonce2key/crapto1.c?ds=sidebyside diff --git a/client/nonce2key/crapto1.c b/client/nonce2key/crapto1.c index 36e21a1c..0339190f 100644 --- a/client/nonce2key/crapto1.c +++ b/client/nonce2key/crapto1.c @@ -26,7 +26,7 @@ static void __attribute__((constructor)) fill_lut() { uint32_t i; for(i = 0; i < 1 << 20; ++i) - filterlut[i] = filter(i); + filterlut[i] = filter(i); } #define filter(x) (filterlut[(x) & 0xfffff]) #endif @@ -158,7 +158,14 @@ struct Crypto1State* lfsr_recovery32(uint32_t ks2, uint32_t in) // allocate memory for out of place bucket_sort bucket_array_t bucket; - if ( !bucket_malloc(bucket) ) goto out; + for (uint32_t i = 0; i < 2; i++) { + for (uint32_t j = 0; j <= 0xff; j++) { + bucket[i][j].head = malloc(sizeof(uint32_t)<<14); + if (!bucket[i][j].head) { + goto out; + } + } + } // initialize statelists: add all possible states which would result into the rightmost 2 bits of the keystream for(i = 1 << 20; i >= 0; --i) { @@ -181,13 +188,15 @@ struct Crypto1State* lfsr_recovery32(uint32_t ks2, uint32_t in) recover(odd_head, odd_tail, oks, even_head, even_tail, eks, 11, statelist, in << 1, bucket); out: + for (uint32_t i = 0; i < 2; i++) + for (uint32_t j = 0; j <= 0xff; j++) + free(bucket[i][j].head); free(odd_head); free(even_head); - bucket_free(bucket); return statelist; } -static const uint32_t S1[] = { 0x62141, 0x310A0, 0x18850, 0x0C428, 0x06214, +static const uint32_t S1[] = { 0x62141, 0x310A0, 0x18850, 0x0C428, 0x06214, 0x0310A, 0x85E30, 0xC69AD, 0x634D6, 0xB5CDE, 0xDE8DA, 0x6F46D, 0xB3C83, 0x59E41, 0xA8995, 0xD027F, 0x6813F, 0x3409F, 0x9E6FA}; static const uint32_t S2[] = { 0x3A557B00, 0x5D2ABD80, 0x2E955EC0, 0x174AAF60, @@ -477,12 +486,11 @@ struct Crypto1State* lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8] odd = lfsr_prefix_ks(ks, 1); even = lfsr_prefix_ks(ks, 0); - s = statelist = malloc((sizeof *statelist) << 21); + s = statelist = malloc((sizeof *statelist) << 20); if(!s || !odd || !even) { free(statelist); - free(odd); - free(even); - return 0; + statelist = 0; + goto out; } for(o = odd; *o + 1; ++o) @@ -494,8 +502,8 @@ struct Crypto1State* lfsr_common_prefix(uint32_t pfx, uint32_t rr, uint8_t ks[8] } s->odd = s->even = 0; - +out: free(odd); free(even); return statelist; -} \ No newline at end of file +}