package main

import (
	"encoding/binary"

	"golang.org/x/crypto/poly1305"
)

func writeWithPadding(p *poly1305.MAC, b []byte) {
	p.Write(b)
	if rem := len(b) % 16; rem != 0 {
		var buf [16]byte
		padLen := 16 - rem
		p.Write(buf[:padLen])
	}
}

func writeUint64(p *poly1305.MAC, n int) {
	var buf [8]byte
	binary.LittleEndian.PutUint64(buf[:], uint64(n))
	p.Write(buf[:])
}