1 files changed, 0 insertions, 80 deletions
diff --git a/controller/fw/src/crypto.c b/controller/fw/src/crypto.c
deleted file mode 100644
index f4f79a4..0000000
--- a/controller/fw/src/crypto.c
+++ /dev/null
@@ -1,80 +0,0 @@
-
-#include <assert.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <sodium.h>
-
-#include "crypto.h"
-#include "simulation.h"
-
-
-void debug_hexdump(const char *name, const uint8_t *buf, size_t len);
-int verify_trigger_dom(const uint8_t inkey[PRESIG_MSG_LEN],
-        const char *domain_string, const uint8_t refkey[PRESIG_MSG_LEN]);
-
-
-void debug_hexdump(const char *name, const uint8_t *buf, size_t len) {
-    DEBUG_PRINTN("%20s: ", name);
-    for (size_t i=0; i<len;) {
-        for (size_t j=0; j<8 && i<len; i++, j++)
-            DEBUG_PRINTN("%02x ", buf[i]);
-        DEBUG_PRINTN(" ");
-    }
-    DEBUG_PRINTN("\n");
-}
-
-/* Returns trigger sig height for correct trigger */
-int verify_trigger_dom(const uint8_t inkey[PRESIG_MSG_LEN],
-        const char *domain_string, const uint8_t refkey[PRESIG_MSG_LEN]) {
-    uint8_t key[crypto_auth_hmacsha512_KEYBYTES];
-    uint8_t key_out[crypto_auth_hmacsha512_BYTES];
-
-    static_assert(PRESIG_MSG_LEN <= crypto_auth_hmacsha512_KEYBYTES);
-    memcpy(key, inkey, PRESIG_MSG_LEN);
-    memset(key + PRESIG_MSG_LEN, 0, sizeof(key) - PRESIG_MSG_LEN);
-    DEBUG_PRINT("ds \"%s\"", domain_string);
-    debug_hexdump("ref", refkey, PRESIG_MSG_LEN);
-
-    for (int i=0; i<presig_height; i++) {
-        DEBUG_PRINT("Verifying height rel %d abs %d", i, presig_height-i);
-        debug_hexdump("key", key, sizeof(key));
-        (void)crypto_auth_hmacsha512(key_out, (uint8_t *)domain_string, strlen(domain_string), key);
-        debug_hexdump("out", key_out, sizeof(key_out));
-        memcpy(key, key_out, PRESIG_MSG_LEN);
-        memset(key + PRESIG_MSG_LEN, 0, sizeof(key) - PRESIG_MSG_LEN);
-        
-        if (!memcmp(key, refkey, PRESIG_MSG_LEN))
-            return presig_height-i;
-    }
-
-    return 0;
-}
-
-int verify_trigger(const uint8_t inkey[PRESIG_MSG_LEN], int *height_out, int *domain_out) {
-    int res;
-    for (int i=0; i<_TRIGGER_DOMAIN_COUNT; i++) {
-        DEBUG_PRINT("Verifying domain %d", i);
-        if ((res = verify_trigger_dom(inkey, presig_domain_strings[i], presig_keys[i]))) {
-            DEBUG_PRINT("Match!");
-            if (height_out)
-                *height_out = res - 1;
-            if (domain_out)
-                *domain_out = i;
-            return 1;
-        }
-    }
-    return 0;
-}
-
-int oob_message_received(uint8_t msg[static OOB_TRIGGER_LEN]) {
-    int height, domain;
-    if (verify_trigger(msg, &height, &domain)) {
-        oob_trigger_activated(domain, height);
-        return 1;
-    }
-
-    return 0;
-}