int main(void)
{
uint8_t key[16] = {0x2b,0x7e,0x15,0x16,0x28,0xae,0xd2,0xa6,0xab,0xf7,0x15,0x88,0x09,0xcf,0x4f,0x3c};
uint8_t pt[16] = {0x6b,0xc1,0xbe,0xe2,0x2e,0x40,0x9f,0x96,0xe9,0x3d,0x7e,0x11,0x73,0x93,0x17,0x2a};
uint8_t ct[16] = {0x3a,0xd7,0x7b,0xb4,0x0d,0x7a,0x36,0x60,0xa8,0x9e,0xca,0xf3,0x24,0x66,0xef,0x97};
aes_indep_init();
aes_indep_key(key);
aes_indep_enc(pt);
if(memcmp(pt,ct,16))
{
printf("error\n");
}
}
int main
(
void
)
{
platform_init();
init_uart();
trigger_setup();
/* Uncomment this to get a HELLO message for debug */
/*
putch('h');
putch('e');
putch('l');
putch('l');
putch('o');
putch('\n');
*/
/* Super-Crappy Protocol works like this:
Send kKEY
Send pPLAINTEXT
*** Encryption Occurs ***
receive rRESPONSE
e.g.:
kE8E9EAEBEDEEEFF0F2F3F4F5F7F8F9FA\n
p014BAF2278A69D331D5180103643E99A\n
r6743C3D1519AB4F2CD9A78AB09A511BD\n
*/
char c;
int ptr = 0;
//Initial key
aes_indep_init();
aes_indep_key(tmp);
char state = 0;
while(1){
c = getch();
if (c == 'x') {
ptr = 0;
state = IDLE;
continue;
}
if (c == 'k') {
ptr = 0;
state = KEY;
continue;
}
else if (c == 'p') {
ptr = 0;
state = PLAIN;
continue;
}
else if (state == KEY) {
if ((c == '\n') || (c == '\r')) {
asciibuf[ptr] = 0;
hex_decode(asciibuf, ptr, tmp);
aes_indep_key(tmp);
state = IDLE;
} else {
asciibuf[ptr++] = c;
}
}
else if (state == PLAIN) {
if ((c == '\n') || (c == '\r')) {
asciibuf[ptr] = 0;
hex_decode(asciibuf, ptr, pt);
/* Do Encryption */
trigger_high();
aes_indep_enc(pt); /* encrypting the data block */
trigger_low();
/* Print Results */
hex_print(pt, 16, asciibuf);
putch('r');
for(int i = 0; i < 32; i++){
putch(asciibuf[i]);
}
putch('\n');
state = IDLE;
} else {
if (ptr >= BUFLEN){
state = IDLE;
} else {
asciibuf[ptr++] = c;
}
}
}
}
return 1;
}
int main
(
void
)
{
platform_init();
init_uart();
trigger_setup();
putch('P');
putch('a');
putch('s');
putch('s');
putch('w');
putch('o');
putch('r');
putch('d');
putch(':');
putch(' ');
/* Require password to unlock simple serial protocol. */
trigger_high();
if (read_pass() || test_pass())
{
_delay_ms(BAD_PASS_DELAY);
trigger_low();
soft_reset();
}
trigger_low();
putch('\n');
putch('W');
putch('e');
putch('l');
putch('c');
putch('o');
putch('m');
putch('e');
putch('!');
putch('\n');
/* Super-Crappy Protocol works like this:
Send kKEY
Send pPLAINTEXT
*** Encryption Occurs ***
receive rRESPONSE
e.g.:
kE8E9EAEBEDEEEFF0F2F3F4F5F7F8F9FA\n
p014BAF2278A69D331D5180103643E99A\n
r6743C3D1519AB4F2CD9A78AB09A511BD\n
*/
char c;
int ptr = 0;
//Initial key
aes_indep_init();
aes_indep_key(tmp);
char state = 0;
while(1){
c = getch();
if (c == 'x') {
ptr = 0;
state = IDLE;
continue;
}
if (c == 'k') {
ptr = 0;
state = KEY;
continue;
}
else if (c == 'p') {
ptr = 0;
state = PLAIN;
continue;
}
else if (state == KEY) {
if ((c == '\n') || (c == '\r')) {
asciibuf[ptr] = 0;
hex_decode(asciibuf, ptr, tmp);
aes_indep_key(tmp);
state = IDLE;
} else {
asciibuf[ptr++] = c;
}
}
else if (state == PLAIN) {
if ((c == '\n') || (c == '\r')) {
asciibuf[ptr] = 0;
hex_decode(asciibuf, ptr, pt);
/* Do Encryption */
trigger_high();
aes_indep_enc(pt); /* encrypting the data block */
trigger_low();
/* Print Results */
hex_print(pt, 16, asciibuf);
putch('r');
for(int i = 0; i < 32; i++){
putch(asciibuf[i]);
}
putch('\n');
state = IDLE;
} else {
if (ptr >= BUFLEN){
state = IDLE;
} else {
asciibuf[ptr++] = c;
}
}
}
}
return 1;
}
int main
(
void
)
{
init_uart0();
/* For 2 MHz crystal use this hack */
//BAUD0L_REG = 12;
trigger_setup();
//OSCCAL only needed for internal oscillator mode, doesn't hurt anyway
#ifdef OSCCAL
OSCCAL = OSCCAL_UARTGOOD;
_delay_ms(500);
#else
#ifdef VARYING_CLOCK
#error "VARYING_CLOCK requested but target does not have OSCCAL register"
#endif
#endif
/* Uncomment this to get a HELLO message for debug */
/*
output_ch_0('h');
output_ch_0('e');
output_ch_0('l');
output_ch_0('l');
output_ch_0('o');
output_ch_0('\n');
*/
/* Super-Crappy Protocol works like this:
Send kKEY
Send pPLAINTEXT
*** Encryption Occurs ***
receive rRESPONSE
e.g.:
kE8E9EAEBEDEEEFF0F2F3F4F5F7F8F9FA\n
p014BAF2278A69D331D5180103643E99A\n
r6743C3D1519AB4F2CD9A78AB09A511BD\n
*/
char c;
int ptr = 0;
//Initial key
aes_indep_init();
aes_indep_key(tmp);
char state = 0;
#ifdef VARYING_CLOCK
uint8_t newosc;
#endif
while(1){
c = input_ch_0();
if (c == 'x') {
ptr = 0;
state = IDLE;
continue;
}
if (c == 'k') {
ptr = 0;
state = KEY;
continue;
}
else if (c == 'p') {
ptr = 0;
state = PLAIN;
continue;
}
else if (state == KEY) {
if ((c == '\n') || (c == '\r')) {
asciibuf[ptr] = 0;
hex_decode(asciibuf, ptr, tmp);
aes_indep_key(tmp);
state = IDLE;
} else {
asciibuf[ptr++] = c;
}
}
else if (state == PLAIN) {
if ((c == '\n') || (c == '\r')) {
asciibuf[ptr] = 0;
hex_decode(asciibuf, ptr, pt);
/* Do Encryption */
//The following is used for varying the clock
#ifdef VARYING_CLOCK
_delay_ms(25);
#ifdef OSCCAL_CENTER
newosc = (rand() & OSCCAL_VARY);
OSCCAL = OSCCAL_CENTER + (int8_t)((int8_t)(OSCCAL_VARY/2) - (int8_t)newosc);
#else
OSCCAL = rand() & OSCMAX;
#endif
_delay_ms(1);
#endif
trigger_high();
aes_indep_enc(pt); /* encrypting the data block */
trigger_low();
#ifdef VARYING_CLOCK
OSCCAL = OSCCAL_UARTGOOD;
_delay_ms(100);
#endif
/* Print Results */
hex_print(pt, 16, asciibuf);
output_ch_0('r');
for(int i = 0; i < 32; i++){
output_ch_0(asciibuf[i]);
}
output_ch_0('\n');
state = IDLE;
} else {
if (ptr >= BUFLEN){
state = IDLE;
} else {
asciibuf[ptr++] = c;
}
}
}
}
return 1;
}
