EMTime/libopencm3-examples
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[Stylecheck] F0, F1, F4

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This commit is contained in:
Frantisek Burian
2014-01-23 19:06:13 +01:00
parent 022cc475bf
commit 3f47411e24
22 changed files with 203 additions and 159 deletions
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39
examples/stm32/f4/other/crypto-basic/cryptobasic.c
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@@ -31,7 +31,7 @@ static void clock_setup(void)
/* Enable clocks for USART2. */
rcc_periph_clock_enable(RCC_USART2);
/* Enable clocks for CRYP. */
rcc_periph_clock_enable(RCC_CRYP);
}
@@ -62,12 +62,12 @@ static void gpio_setup(void)
gpio_set_af(GPIOA, GPIO_AF7, GPIO2);
}
static uint64_t key[4] = {0x11223344,0x44556677,0x77889900, 0x99005522};
static uint64_t iv[4] = {0x01020304,0x02030405,0x09080706, 0x55245711};
static uint64_t key[4] = {0x11223344, 0x44556677, 0x77889900, 0x99005522};
static uint64_t iv[4] = {0x01020304, 0x02030405, 0x09080706, 0x55245711};
static uint8_t plaintext[8] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
static uint8_t ciphertext[8] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
static uint8_t plaintext2[8] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
static uint8_t plaintext[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
static uint8_t ciphertext[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
static uint8_t plaintext2[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
int main(void)
{
@@ -81,44 +81,45 @@ int main(void)
/* Blink the LED (PD12) on the board with every transmitted byte. */
while (1) {
gpio_toggle(GPIOD, GPIO12); /* LED on/off */
/* encode the plaintext message into ciphertext */
crypto_set_key(CRYPTO_KEY_128BIT,key);
crypto_set_key(CRYPTO_KEY_128BIT, key);
crypto_set_iv(iv); /* only in CBC or CTR mode */
crypto_set_datatype(CRYPTO_DATA_32BIT);
crypto_set_algorithm(ENCRYPT_DES_ECB);
crypto_start();
crypto_process_block((uint32_t*)plaintext,
(uint32_t*)ciphertext,
crypto_process_block((uint32_t *)plaintext,
(uint32_t *)ciphertext,
8 / sizeof(uint32_t));
crypto_stop();
/* decode the previously encoded message
from ciphertext to plaintext2 */
crypto_set_key(CRYPTO_KEY_128BIT,key);
crypto_set_key(CRYPTO_KEY_128BIT, key);
crypto_set_iv(iv); /* only in CBC or CTR mode */
crypto_set_datatype(CRYPTO_DATA_32BIT);
crypto_set_algorithm(DECRYPT_DES_ECB);
crypto_start();
crypto_process_block((uint32_t*)ciphertext,
(uint32_t*)plaintext2,
crypto_process_block((uint32_t *)ciphertext,
(uint32_t *)plaintext2,
8 / sizeof(uint32_t));
crypto_stop();
crypto_stop();
/* compare the two plaintexts if they are same */
iserr = 0;
for (i=0; i<8; i++)
{
if (plaintext[i] != plaintext2[i])
for (i = 0; i < 8; i++) {
if (plaintext[i] != plaintext2[i]) {
iserr = true;
}
}
if (iserr)
gpio_toggle(GPIOD,GPIO12); /* something went wrong. */
if (iserr) {
gpio_toggle(GPIOD, GPIO12); /* something went wrong. */
}
}
return 0;