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19 lines
1.1 KiB
C
19 lines
1.1 KiB
C
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#ifndef __DESFIRE_CRYPTO_H
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#define __DESFIRE_CRYPTO_H
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#include "common.h"
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#include "desfire.h"
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void *mifare_cryto_preprocess_data(desfiretag_t tag, void *data, size_t *nbytes, size_t offset, int communication_settings);
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void *mifare_cryto_postprocess_data(desfiretag_t tag, void *data, size_t *nbytes, int communication_settings);
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void mifare_cypher_single_block(desfirekey_t key, uint8_t *data, uint8_t *ivect, MifareCryptoDirection direction, MifareCryptoOperation operation, size_t block_size);
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void mifare_cypher_blocks_chained(desfiretag_t tag, desfirekey_t key, uint8_t *ivect, uint8_t *data, size_t data_size, MifareCryptoDirection direction, MifareCryptoOperation operation);
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size_t key_block_size(const desfirekey_t key);
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size_t padded_data_length(const size_t nbytes, const size_t block_size);
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size_t maced_data_length(const desfirekey_t key, const size_t nbytes);
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size_t enciphered_data_length(const desfiretag_t tag, const size_t nbytes, int communication_settings);
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void cmac_generate_subkeys(desfirekey_t key);
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void cmac(const desfirekey_t key, uint8_t *ivect, const uint8_t *data, size_t len, uint8_t *cmac);
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#endif
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