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- #ifndef AES_H
- #define AES_H
- #include <stddef.h>
- #include <stdint.h>
- #include "prp.h"
- #define AES_BLOCKSZ 16
- #define AES128_ROUNDS 10
- #define AES192_ROUNDS 12
- #define AES256_ROUNDS 14
- #ifndef CF_AES_MAXROUNDS
- # define CF_AES_MAXROUNDS AES256_ROUNDS
- #endif
- #ifndef CF_AES_ENCRYPT_ONLY
- # define CF_AES_ENCRYPT_ONLY 0
- #endif
- typedef struct
- {
- uint32_t rounds;
- uint32_t ks[AES_BLOCKSZ / 4 * (CF_AES_MAXROUNDS + 1)];
- } cf_aes_context;
- extern void cf_aes_init(cf_aes_context *ctx,
- const uint8_t *key,
- size_t nkey);
- extern void cf_aes_encrypt(const cf_aes_context *ctx,
- const uint8_t in[AES_BLOCKSZ],
- uint8_t out[AES_BLOCKSZ]);
- extern void cf_aes_decrypt(const cf_aes_context *ctx,
- const uint8_t in[AES_BLOCKSZ],
- uint8_t out[AES_BLOCKSZ]);
- extern void cf_aes_finish(cf_aes_context *ctx);
- extern const cf_prp cf_aes;
- #endif
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