#include "common.h"
#include "aes.h"
Go to the source code of this file.
Data Structures | |
struct | AVAES |
Typedefs | |
typedef struct AVAES | AVAES |
Functions | |
static void | addkey (uint64_t dst[2], const uint64_t src[2], const uint64_t round_key[2]) |
static void | subshift (uint8_t s0[2][16], int s, const uint8_t *box) |
static int | mix_core (uint32_t multbl[4][256], int a, int b, int c, int d) |
static void | mix (uint8_t state[2][4][4], uint32_t multbl[4][256], int s1, int s3) |
static void | crypt (AVAES *a, int s, const uint8_t *sbox, const uint32_t *multbl) |
void | av_aes_crypt (AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt) |
Encrypts / decrypts. | |
static void | init_multbl2 (uint8_t tbl[1024], const int c[4], const uint8_t *log8, const uint8_t *alog8, const uint8_t *sbox) |
int | av_aes_init (AVAES *a, const uint8_t *key, int key_bits, int decrypt) |
Initializes an AVAES context. | |
Variables | |
const int | av_aes_size = sizeof(AVAES) |
static const uint8_t | rcon [10] |
static uint8_t | sbox [256] |
static uint8_t | inv_sbox [256] |
static uint32_t | enc_multbl [4][256] |
static uint32_t | dec_multbl [4][256] |
static void addkey | ( | uint64_t | dst[2], | |
const uint64_t | src[2], | |||
const uint64_t | round_key[2] | |||
) | [inline, static] |
Definition at line 50 of file aes.c.
Referenced by av_aes_crypt(), and crypt().
void av_aes_crypt | ( | struct AVAES * | a, | |
uint8_t * | dst, | |||
const uint8_t * | src, | |||
int | count, | |||
uint8_t * | iv, | |||
int | decrypt | |||
) |
Encrypts / decrypts.
count | number of 16 byte blocks | |
dst | destination array, can be equal to src | |
src | source array, can be equal to dst | |
iv | initialization vector for CBC mode, if NULL then ECB will be used | |
decrypt | 0 for encryption, 1 for decryption |
Definition at line 90 of file aes.c.
Referenced by mxf_decrypt_triplet().
int av_aes_init | ( | struct AVAES * | a, | |
const uint8_t * | key, | |||
int | key_bits, | |||
int | decrypt | |||
) |
Initializes an AVAES context.
key_bits | 128, 192 or 256 | |
decrypt | 0 for encryption, 1 for decryption |
Definition at line 125 of file aes.c.
Referenced by mxf_decrypt_triplet().
static void crypt | ( | AVAES * | a, | |
int | s, | |||
const uint8_t * | sbox, | |||
const uint32_t * | multbl | |||
) | [inline, static] |
Definition at line 80 of file aes.c.
Referenced by av_aes_crypt().
static void init_multbl2 | ( | uint8_t | tbl[1024], | |
const int | c[4], | |||
const uint8_t * | log8, | |||
const uint8_t * | alog8, | |||
const uint8_t * | sbox | |||
) | [static] |
Definition at line 111 of file aes.c.
Referenced by av_aes_init().
static void mix | ( | uint8_t | state[2][4][4], | |
uint32_t | multbl[4][256], | |||
int | s1, | |||
int | s3 | |||
) | [inline, static] |
Definition at line 73 of file aes.c.
Referenced by av_aes_init(), and crypt().
static int mix_core | ( | uint32_t | multbl[4][256], | |
int | a, | |||
int | b, | |||
int | c, | |||
int | d | |||
) | [inline, static] |
static void subshift | ( | uint8_t | s0[2][16], | |
int | s, | |||
const uint8_t * | box | |||
) | [static] |
Definition at line 55 of file aes.c.
Referenced by av_aes_init(), and crypt().
const int av_aes_size = sizeof(AVAES) |
Definition at line 34 of file aes.c.
Referenced by mxf_decrypt_triplet().
uint32_t dec_multbl[4][256] [static] |
Definition at line 47 of file aes.c.
Referenced by av_aes_crypt(), and av_aes_init().
uint32_t enc_multbl[4][256] [static] |
Definition at line 46 of file aes.c.
Referenced by av_aes_crypt(), and av_aes_init().
uint8_t inv_sbox[256] [static] |
Definition at line 41 of file aes.c.
Referenced by av_aes_crypt(), and av_aes_init().
const uint8_t rcon[10] [static] |
{ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36 }
Definition at line 36 of file aes.c.
Referenced by av_aes_init().
uint8_t sbox[256] [static] |
Definition at line 40 of file aes.c.
Referenced by av_aes_crypt(), and av_aes_init().