for (i = ilog64(branches) - 1; i >= 0; i--) {
if (((branches >> i) & 1)) {
change_bit(hash->u.u8, i);
- sha256(hash, hash, 1);
+ sha256(hash, hash, sizeof(*hash));
}
}
}
derive((shachain_index_t)-1ULL, index, seed, hash);
}
-void shachain_init(struct shachain *shachain)
+void shachain_init(struct shachain *chain)
{
- shachain->num_valid = 0;
+ chain->num_valid = 0;
+ chain->max_index = 0;
}
bool shachain_add_hash(struct shachain *chain,
{
int i;
+ /* You have to insert them in order! */
+ assert(index == chain->max_index + 1 ||
+ (index == 0 && chain->num_valid == 0));
+
for (i = 0; i < chain->num_valid; i++) {
/* If we could derive this value, we don't need it,
* not any others (since they're in order). */
chain->known[i].index = index;
chain->known[i].hash = *hash;
chain->num_valid = i+1;
+ chain->max_index = index;
return true;
}