| Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame^] | 1 | /* |
| 2 | * aes_cbc.h |
| 3 | * |
| 4 | * Header for AES Cipher Blobk Chaining Mode. |
| 5 | * |
| 6 | * David A. McGrew |
| 7 | * Cisco Systems, Inc. |
| 8 | * |
| 9 | */ |
| 10 | |
| 11 | #ifndef AES_CBC_H |
| 12 | #define AES_CBC_H |
| 13 | |
| 14 | #include "aes.h" |
| 15 | #include "cipher.h" |
| 16 | |
| 17 | typedef struct { |
| 18 | v128_t state; /* cipher chaining state */ |
| 19 | v128_t previous; /* previous ciphertext block */ |
| 20 | aes_expanded_key_t expanded_key; /* the cipher key */ |
| 21 | } aes_cbc_ctx_t; |
| 22 | |
| 23 | err_status_t |
| 24 | aes_cbc_set_key(aes_cbc_ctx_t *c, |
| 25 | const unsigned char *key); |
| 26 | |
| 27 | err_status_t |
| 28 | aes_cbc_encrypt(aes_cbc_ctx_t *c, |
| 29 | unsigned char *buf, |
| 30 | unsigned int *bytes_in_data); |
| 31 | |
| 32 | err_status_t |
| 33 | aes_cbc_context_init(aes_cbc_ctx_t *c, const uint8_t *key, |
| 34 | cipher_direction_t dir); |
| 35 | |
| 36 | err_status_t |
| 37 | aes_cbc_set_iv(aes_cbc_ctx_t *c, void *iv); |
| 38 | |
| 39 | err_status_t |
| 40 | aes_cbc_nist_encrypt(aes_cbc_ctx_t *c, |
| 41 | unsigned char *data, |
| 42 | unsigned int *bytes_in_data); |
| 43 | |
| 44 | err_status_t |
| 45 | aes_cbc_nist_decrypt(aes_cbc_ctx_t *c, |
| 46 | unsigned char *data, |
| 47 | unsigned int *bytes_in_data); |
| 48 | |
| 49 | #endif /* AES_CBC_H */ |
| 50 | |