lib/include/rc5.h

//  This file is part of MOS, the MANTIS Operating System
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#include <inttypes.h>

#define RC5_ROUNDS      12
#define RC5_KEYSPACES   ((2 * RC5_ROUNDS) + 2)

typedef struct _rc5key_info {
  int      rounds;
  uint32_t vector[RC5_KEYSPACES];
} rc5key_info;

void rc5_key_setup(uint8_t *key, int dummy, rc5key_info *key_info);
void rc5_encrypt(uint32_t *in, uint32_t *out, rc5key_info *key_info);
void rc5_decrypt(const uint32_t *in, uint32_t *out, rc5key_info *key_info);
void block_encrypt(const uint8_t *plt, uint8_t *enc, int size,
                   uint8_t *iv, rc5key_info *key_info);
void block_decrypt(const uint8_t *enc, uint8_t *dec, int size,
                   uint8_t *iv, rc5key_info *key_info);
void block_mac(const uint8_t *plt, int size, uint8_t *mac, int mac_size,
                      uint8_t *iv, rc5key_info *key_info);

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