53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/*
|
|
* aes_cbc.h
|
|
*
|
|
* Header for AES Cipher Blobk Chaining Mode.
|
|
*
|
|
* David A. McGrew
|
|
* Cisco Systems, Inc.
|
|
*
|
|
*/
|
|
|
|
#ifndef AES_CBC_H
|
|
#define AES_CBC_H
|
|
|
|
#include "aes.h"
|
|
#include "cipher.h"
|
|
|
|
typedef struct {
|
|
v128_t state; /* cipher chaining state */
|
|
v128_t previous; /* previous ciphertext block */
|
|
uint8_t key[32];
|
|
int key_len;
|
|
aes_expanded_key_t expanded_key; /* the cipher key */
|
|
} aes_cbc_ctx_t;
|
|
|
|
err_status_t
|
|
aes_cbc_set_key(aes_cbc_ctx_t *c,
|
|
const unsigned char *key);
|
|
|
|
err_status_t
|
|
aes_cbc_encrypt(aes_cbc_ctx_t *c,
|
|
unsigned char *buf,
|
|
unsigned int *bytes_in_data);
|
|
|
|
err_status_t
|
|
aes_cbc_context_init(aes_cbc_ctx_t *c, const uint8_t *key,
|
|
int key_len);
|
|
|
|
err_status_t
|
|
aes_cbc_set_iv(aes_cbc_ctx_t *c, void *iv, int direction);
|
|
|
|
err_status_t
|
|
aes_cbc_nist_encrypt(aes_cbc_ctx_t *c,
|
|
unsigned char *data,
|
|
unsigned int *bytes_in_data);
|
|
|
|
err_status_t
|
|
aes_cbc_nist_decrypt(aes_cbc_ctx_t *c,
|
|
unsigned char *data,
|
|
unsigned int *bytes_in_data);
|
|
|
|
#endif /* AES_CBC_H */
|
|
|