WIP cryptographic design

controller/fw/tools/crypto_test.c

@@ -0,0 +1,46 @@
+
+#include <stdint.h>
+#include <math.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/fcntl.h>
+
+#include "crypto.h"
+
+void oob_trigger_activated(enum trigger_domain domain, int serial) {
+    printf("oob_trigger_activated(%d, %d)\n", domain, serial);
+    fflush(stdout);
+}
+
+void print_usage() {
+    fprintf(stderr, "Usage: crypto_test [auth_key_hex]\n");
+}
+
+int main(int argc, char **argv) {
+    if (argc != 2) {
+        fprintf(stderr, "Error: Invalid arguments.\n");
+        print_usage();
+        return 1;
+    }
+
+    uint8_t auth_key[16];
+
+    for (size_t i=0; argv[1][i+0] != '\0' && argv[1][i+1] != '\0'; i+= 2) {
+        char buf[3] = { argv[1][i+0], argv[1][i+1], 0};
+        char *endptr;
+        auth_key[i/2] = strtoul(buf, &endptr, 16);
+        if (!endptr || *endptr != '\0') {
+            fprintf(stderr, "Invalid authkey\n");
+            return 1;
+        }
+    }
+
+    printf("rc=%d\n", oob_message_received(auth_key));
+
+    return 0;
+}