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97 lines
1.9 KiB
97 lines
1.9 KiB
#include <stdbool.h>
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#include "hal.h"
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#define LENGTH 4
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typedef struct {
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volatile uint32_t key[LENGTH];
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volatile uint32_t state_in[LENGTH];
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volatile uint32_t useEncDec;
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volatile uint32_t valid_in;
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volatile uint32_t valid_out;
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volatile uint32_t state_out[LENGTH];
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} Aes_Mem;
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#define AES_MEM ((Aes_Mem*)(0xF0030000))
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void writeKey(uint32_t * key) {
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for (unsigned i = 0; i < LENGTH; i++) {
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AES_MEM->key[i] = key[i];
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}
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}
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void writeState(uint32_t * state) {
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for (unsigned i = 0; i < LENGTH; i++) {
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AES_MEM->state_in[i] = state[i];
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}
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}
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void setEncDec(int encDec) {
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AES_MEM->useEncDec = encDec;
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}
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void setValidIn() {
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AES_MEM->valid_in = 1;
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}
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void readState(uint32_t * state) {
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for (unsigned i = 0; i < LENGTH; i++) {
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state[i] = AES_MEM->state_out[i];
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}
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}
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void printState(uint32_t * state) {
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printf("State:\n");
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for(unsigned i = 0; i < LENGTH; i++) {
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printf("%08x",state[LENGTH-i-1]);
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}
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printf("\n");
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}
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void printKey(uint32_t * key) {
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printf("Key:\n");
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for(unsigned i = 0; i < LENGTH; i++) {
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printf("%08x",key[LENGTH-i-1]);
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}
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printf("\n");
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}
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int main(void) {
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printf("HELLO WORLD\n");
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// uint32_t state[LENGTH] = {0x6bc1bee2, 0x2e409f96, 0xe93d7e11, 0x7393172a};
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// uint32_t key[LENGTH] = {0x2b7e1516, 0x28aed2a6, 0xabf71588, 0x09cf4f3c};
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uint32_t state[LENGTH] = {0x7393172a, 0xe93d7e11, 0x2e409f96, 0x6bc1bee2};
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uint32_t key[LENGTH] = {0x09cf4f3c, 0xabf71588, 0x28aed2a6, 0x2b7e1516};
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writeKey(key);
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while (1) {
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printState(state);
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printKey(key);
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writeState(state);
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setEncDec(1);
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setValidIn();
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while (AES_MEM->valid_out != 1);
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readState(state);
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printState(state);
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writeState(state);
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setEncDec(0);
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setValidIn();
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while (AES_MEM->valid_out != 1);
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readState(state);
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printState(state);
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}
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return 0;
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}
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