Reorder client src directories

client/deps/hardnested/hardnested_bruteforce.h

@@ -0,0 +1,62 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) 2016, 2017 by piwi
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Implements a card only attack based on crypto text (encrypted nonces
+// received during a nested authentication) only. Unlike other card only
+// attacks this doesn't rely on implementation errors but only on the
+// inherent weaknesses of the crypto1 cypher. Described in
+//   Carlo Meijer, Roel Verdult, "Ciphertext-only Cryptanalysis on Hardened
+//   Mifare Classic Cards" in Proceedings of the 22nd ACM SIGSAC Conference on
+//   Computer and Communications Security, 2015
+//-----------------------------------------------------------------------------
+
+#ifndef HARDNESTED_BRUTEFORCE_H__
+#define HARDNESTED_BRUTEFORCE_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#define NUM_SUMS 19 // number of possible sum property values
+
+typedef struct guess_sum_a8 {
+    float prob;
+    uint64_t num_states;
+    uint8_t sum_a8_idx;
+} guess_sum_a8_t;
+
+typedef struct noncelistentry {
+    uint32_t nonce_enc;
+    uint8_t par_enc;
+    void *next;
+} noncelistentry_t;
+
+typedef struct noncelist {
+    uint16_t num;
+    uint16_t Sum;
+    guess_sum_a8_t sum_a8_guess[NUM_SUMS];
+    bool sum_a8_guess_dirty;
+    float expected_num_brute_force;
+    uint8_t BitFlips[0x400];
+    uint32_t *states_bitarray[2];
+    uint32_t num_states_bitarray[2];
+    bool all_bitflips_dirty[2];
+    noncelistentry_t *first;
+} noncelist_t;
+
+typedef struct {
+    uint32_t *states[2];
+    uint32_t len[2];
+    void *next;
+} statelist_t;
+
+void prepare_bf_test_nonces(noncelist_t *nonces, uint8_t best_first_byte);
+bool brute_force_bs(float *bf_rate, statelist_t *candidates, uint32_t cuid, uint32_t num_acquired_nonces, uint64_t maximum_states, noncelist_t *nonces, uint8_t *best_first_bytes, uint64_t *found_key);
+float brute_force_benchmark(void);
+uint8_t trailing_zeros(uint8_t byte);
+bool verify_key(uint32_t cuid, noncelist_t *nonces, uint8_t *best_first_bytes, uint32_t odd, uint32_t even);
+
+#endif