package main
import (
"crypto/sha512"
"fmt"
)
func GenerateToken(pkey []byte, id int, a ...[]byte) ([]byte, error) {
h := sha512.New()
h.Write([]byte(fmt.Sprintf("%x", pkey)))
// Challenge toctoc(6) should not have that
if id != 0 && id != 6 {
h.Write([]byte(fmt.Sprintf(":%d", id)))
}
for _, v := range a {
h.Write([]byte(":"))
h.Write(v)
return h.Sum(nil), nil