Function node_id_hash

common/node_id.h:66–69

We need to define a hashing function. siphash24 is a fast yet * cryptographic hash in ccan/crypto/siphash24; we might be able to get away * with a slightly faster hash with fewer guarantees, but it's good hygiene to * use this unless it's a proven bottleneck. siphash_seed() is a function in * common/pseudorand which sets up a seed for our hashing; it's different * every time the program is r

 * common/pseudorand which sets up a seed for our hashing; it's different
 * every time the program is run. */
static inline size_t node_id_hash(const struct node_id *id)
{
	return siphash24(siphash_seed(), id->k, sizeof(id->k));
}

/**
 * check_signed_hash_nodeid - check a raw secp256k1 signature.