fixup! treewide: make type casts explicit

Author: JKRhb

crypto.c

@@ -358,19 +358,19 @@ dtls_psk_pre_master_secret(unsigned char *key, size_t keylen,
 #ifdef DTLS_ECC
 static void dtls_ec_key_to_uint32(const unsigned char *key, size_t key_size,
 				  uint32_t *result) {
-  size_t i;
+  int i;
 
-  for (i = (key_size / sizeof(uint32_t)) - 1; i >= 0 ; i--) {
+  for (i = (int) ((key_size / sizeof(uint32_t)) - 1); i >= 0 ; i--) {
     *result = dtls_uint32_to_int(&key[i * sizeof(uint32_t)]);
     result++;
   }
 }
 
 static void dtls_ec_key_from_uint32(const uint32_t *key, size_t key_size,
 				    unsigned char *result) {
-  size_t i;
+  int i;
 
-  for (i = (key_size / sizeof(uint32_t)) - 1; i >= 0 ; i--) {
+  for (i = (int) ((key_size / sizeof(uint32_t)) - 1); i >= 0 ; i--) {
     dtls_int_to_uint32(result, key[i]);
     result += 4;
   }