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https://github.com/DarkFlippers/unleashed-firmware.git
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55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
#pragma once
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#include <protocols/mf_classic/mf_classic.h>
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#include <toolbox/bit_buffer.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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uint32_t odd;
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uint32_t even;
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} Crypto1;
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Crypto1* crypto1_alloc(void);
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void crypto1_free(Crypto1* instance);
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void crypto1_reset(Crypto1* crypto1);
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void crypto1_init(Crypto1* crypto1, uint64_t key);
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uint8_t crypto1_bit(Crypto1* crypto1, uint8_t in, int is_encrypted);
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uint8_t crypto1_byte(Crypto1* crypto1, uint8_t in, int is_encrypted);
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uint32_t crypto1_word(Crypto1* crypto1, uint32_t in, int is_encrypted);
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void crypto1_decrypt(Crypto1* crypto, const BitBuffer* buff, BitBuffer* out);
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void crypto1_encrypt(Crypto1* crypto, uint8_t* keystream, const BitBuffer* buff, BitBuffer* out);
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void crypto1_encrypt_reader_nonce(
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Crypto1* crypto,
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uint64_t key,
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uint32_t cuid,
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uint8_t* nt,
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uint8_t* nr,
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BitBuffer* out,
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bool is_nested);
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uint32_t crypto1_lfsr_rollback_word(Crypto1* crypto1, uint32_t in, int fb);
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bool crypto1_nonce_matches_encrypted_parity_bits(uint32_t nt, uint32_t ks, uint8_t nt_par_enc);
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bool crypto1_is_weak_prng_nonce(uint32_t nonce);
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uint32_t crypto1_decrypt_nt_enc(uint32_t cuid, uint32_t nt_enc, MfClassicKey known_key);
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uint32_t crypto1_prng_successor(uint32_t x, uint32_t n);
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#ifdef __cplusplus
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}
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#endif
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