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