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#include "mbedtls/config.h"
#include <string.h>
#include "mbedtls/aes.h"
#include "mbedtls/padlock.h"
#include "mbedtls/aesni.h"
#include "mbedtls/platform.h"
#include "arc4_alt.h"
Macros | |
#define | GET_UINT32_LE(n, b, i) |
#define | PUT_UINT32_LE(n, b, i) |
#define | ROTL8(x) ( ( x << 8 ) & 0xFFFFFFFF ) | ( x >> 24 ) |
#define | XTIME(x) ( ( x << 1 ) ^ ( ( x & 0x80 ) ? 0x1B : 0x00 ) ) |
#define | MUL(x, y) ( ( x && y ) ? pow[(log[x]+log[y]) % 255] : 0 ) |
#define | AES_FROUND(X0, X1, X2, X3, Y0, Y1, Y2, Y3) |
#define | AES_RROUND(X0, X1, X2, X3, Y0, Y1, Y2, Y3) |
Functions | |
static void | aes_gen_tables (void) |
void | mbedtls_aes_init (mbedtls_aes_context *ctx) |
Initialize AES context. More... | |
void | mbedtls_aes_free (mbedtls_aes_context *ctx) |
Clear AES context. More... | |
int | mbedtls_aes_setkey_enc (mbedtls_aes_context *ctx, const unsigned char *key, unsigned int keybits) |
AES key schedule (encryption) More... | |
int | mbedtls_aes_setkey_dec (mbedtls_aes_context *ctx, const unsigned char *key, unsigned int keybits) |
AES key schedule (decryption) More... | |
int | mbedtls_internal_aes_encrypt (mbedtls_aes_context *ctx, const unsigned char input[16], unsigned char output[16]) |
Internal AES block encryption function (Only exposed to allow overriding it, see MBEDTLS_AES_ENCRYPT_ALT) More... | |
void | mbedtls_aes_encrypt (mbedtls_aes_context *ctx, const unsigned char input[16], unsigned char output[16]) |
Deprecated internal AES block encryption function without return value. More... | |
int | mbedtls_internal_aes_decrypt (mbedtls_aes_context *ctx, const unsigned char input[16], unsigned char output[16]) |
Internal AES block decryption function (Only exposed to allow overriding it, see MBEDTLS_AES_DECRYPT_ALT) More... | |
void | mbedtls_aes_decrypt (mbedtls_aes_context *ctx, const unsigned char input[16], unsigned char output[16]) |
Deprecated internal AES block decryption function without return value. More... | |
int | mbedtls_aes_crypt_ecb (mbedtls_aes_context *ctx, int mode, const unsigned char input[16], unsigned char output[16]) |
AES-ECB block encryption/decryption. More... | |
int | mbedtls_aes_crypt_cbc (mbedtls_aes_context *ctx, int mode, size_t length, unsigned char iv[16], const unsigned char *input, unsigned char *output) |
AES-CBC buffer encryption/decryption Length should be a multiple of the block size (16 bytes) More... | |
int | mbedtls_aes_crypt_cfb128 (mbedtls_aes_context *ctx, int mode, size_t length, size_t *iv_off, unsigned char iv[16], const unsigned char *input, unsigned char *output) |
AES-CFB128 buffer encryption/decryption. More... | |
int | mbedtls_aes_crypt_cfb8 (mbedtls_aes_context *ctx, int mode, size_t length, unsigned char iv[16], const unsigned char *input, unsigned char *output) |
AES-CFB8 buffer encryption/decryption. More... | |
int | mbedtls_aes_crypt_ctr (mbedtls_aes_context *ctx, size_t length, size_t *nc_off, unsigned char nonce_counter[16], unsigned char stream_block[16], const unsigned char *input, unsigned char *output) |
AES-CTR buffer encryption/decryption. More... | |
int | mbedtls_aes_self_test (int verbose) |
Checkup routine. More... | |
Variables | |
static unsigned char | FSb [256] |
static uint32_t | FT0 [256] |
static uint32_t | FT1 [256] |
static uint32_t | FT2 [256] |
static uint32_t | FT3 [256] |
static unsigned char | RSb [256] |
static uint32_t | RT0 [256] |
static uint32_t | RT1 [256] |
static uint32_t | RT2 [256] |
static uint32_t | RT3 [256] |
static uint32_t | RCON [10] |
static int | aes_init_done = 0 |
static const unsigned char | aes_test_ecb_dec [3][16] |
static const unsigned char | aes_test_ecb_enc [3][16] |
static const unsigned char | aes_test_cbc_dec [3][16] |
static const unsigned char | aes_test_cbc_enc [3][16] |
static const unsigned char | aes_test_cfb128_key [3][32] |
static const unsigned char | aes_test_cfb128_iv [16] |
static const unsigned char | aes_test_cfb128_pt [64] |
static const unsigned char | aes_test_cfb128_ct [3][64] |
static const unsigned char | aes_test_ctr_key [3][16] |
static const unsigned char | aes_test_ctr_nonce_counter [3][16] |
static const unsigned char | aes_test_ctr_pt [3][48] |
static const unsigned char | aes_test_ctr_ct [3][48] |
static const int | aes_test_ctr_len [3] |
#define AES_FROUND | ( | X0, | |
X1, | |||
X2, | |||
X3, | |||
Y0, | |||
Y1, | |||
Y2, | |||
Y3 | |||
) |
#define AES_RROUND | ( | X0, | |
X1, | |||
X2, | |||
X3, | |||
Y0, | |||
Y1, | |||
Y2, | |||
Y3 | |||
) |
int mbedtls_aes_crypt_cbc | ( | mbedtls_aes_context * | ctx, |
int | mode, | ||
size_t | length, | ||
unsigned char | iv[16], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
AES-CBC buffer encryption/decryption Length should be a multiple of the block size (16 bytes)
ctx | AES context |
mode | MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT |
length | length of the input data |
iv | initialization vector (updated after use) |
input | buffer holding the input data |
output | buffer holding the output data |
int mbedtls_aes_crypt_cfb128 | ( | mbedtls_aes_context * | ctx, |
int | mode, | ||
size_t | length, | ||
size_t * | iv_off, | ||
unsigned char | iv[16], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
AES-CFB128 buffer encryption/decryption.
Note: Due to the nature of CFB you should use the same key schedule for both encryption and decryption. So a context initialized with mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT.
ctx | AES context |
mode | MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT |
length | length of the input data |
iv_off | offset in IV (updated after use) |
iv | initialization vector (updated after use) |
input | buffer holding the input data |
output | buffer holding the output data |
int mbedtls_aes_crypt_cfb8 | ( | mbedtls_aes_context * | ctx, |
int | mode, | ||
size_t | length, | ||
unsigned char | iv[16], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
AES-CFB8 buffer encryption/decryption.
Note: Due to the nature of CFB you should use the same key schedule for both encryption and decryption. So a context initialized with mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT.
ctx | AES context |
mode | MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT |
length | length of the input data |
iv | initialization vector (updated after use) |
input | buffer holding the input data |
output | buffer holding the output data |
int mbedtls_aes_crypt_ctr | ( | mbedtls_aes_context * | ctx, |
size_t | length, | ||
size_t * | nc_off, | ||
unsigned char | nonce_counter[16], | ||
unsigned char | stream_block[16], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
AES-CTR buffer encryption/decryption.
Warning: You have to keep the maximum use of your counter in mind!
Note: Due to the nature of CTR you should use the same key schedule for both encryption and decryption. So a context initialized with mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT.
ctx | AES context |
length | The length of the data |
nc_off | The offset in the current stream_block (for resuming within current cipher stream). The offset pointer to should be 0 at the start of a stream. |
nonce_counter | The 128-bit nonce and counter. |
stream_block | The saved stream-block for resuming. Is overwritten by the function. |
input | The input data stream |
output | The output data stream |
int mbedtls_aes_crypt_ecb | ( | mbedtls_aes_context * | ctx, |
int | mode, | ||
const unsigned char | input[16], | ||
unsigned char | output[16] | ||
) |
AES-ECB block encryption/decryption.
ctx | AES context |
mode | MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT |
input | 16-byte input block |
output | 16-byte output block |
void mbedtls_aes_decrypt | ( | mbedtls_aes_context * | ctx, |
const unsigned char | input[16], | ||
unsigned char | output[16] | ||
) |
Deprecated internal AES block decryption function without return value.
ctx | AES context |
input | Ciphertext block |
output | Output (plaintext) block |
void mbedtls_aes_encrypt | ( | mbedtls_aes_context * | ctx, |
const unsigned char | input[16], | ||
unsigned char | output[16] | ||
) |
Deprecated internal AES block encryption function without return value.
ctx | AES context |
input | Plaintext block |
output | Output (ciphertext) block |
void mbedtls_aes_free | ( | mbedtls_aes_context * | ctx | ) |
Clear AES context.
ctx | AES context to be cleared |
void mbedtls_aes_init | ( | mbedtls_aes_context * | ctx | ) |
Initialize AES context.
ctx | AES context to be initialized |
int mbedtls_aes_self_test | ( | int | verbose | ) |
Checkup routine.
int mbedtls_aes_setkey_dec | ( | mbedtls_aes_context * | ctx, |
const unsigned char * | key, | ||
unsigned int | keybits | ||
) |
AES key schedule (decryption)
ctx | AES context to be initialized |
key | decryption key |
keybits | must be 128, 192 or 256 |
int mbedtls_aes_setkey_enc | ( | mbedtls_aes_context * | ctx, |
const unsigned char * | key, | ||
unsigned int | keybits | ||
) |
AES key schedule (encryption)
ctx | AES context to be initialized |
key | encryption key |
keybits | must be 128, 192 or 256 |
int mbedtls_internal_aes_decrypt | ( | mbedtls_aes_context * | ctx, |
const unsigned char | input[16], | ||
unsigned char | output[16] | ||
) |
Internal AES block decryption function (Only exposed to allow overriding it, see MBEDTLS_AES_DECRYPT_ALT)
ctx | AES context |
input | Ciphertext block |
output | Output (plaintext) block |
int mbedtls_internal_aes_encrypt | ( | mbedtls_aes_context * | ctx, |
const unsigned char | input[16], | ||
unsigned char | output[16] | ||
) |
Internal AES block encryption function (Only exposed to allow overriding it, see MBEDTLS_AES_ENCRYPT_ALT)
ctx | AES context |
input | Plaintext block |
output | Output (ciphertext) block |
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