func doHash(g *state.Game, thing, name string) string {
digest := g.GetHash()
io.WriteString(digest, thing)
io.WriteString(digest, name)
sum := digest.Sum(nil)
return strings.TrimRight(base64.URLEncoding.EncodeToString(sum), "=")
}
func pwdHash(g *state.Game, name, password string) []byte {
digest := g.GetHash()
io.WriteString(digest, "password/")
io.WriteString(digest, name)
io.WriteString(digest, ":")
io.WriteString(digest, password)
return digest.Sum(nil)
}