poly1305.go

   1 package main
   2
   3 import (
   4         "encoding/binary"
   5
   6         "golang.org/x/crypto/poly1305"
   7 )
   8
   9 func writeWithPadding(p *poly1305.MAC, b []byte) {
  10         p.Write(b)
  11         if rem := len(b) % 16; rem != 0 {
  12                 var buf [16]byte
  13                 padLen := 16 - rem
  14                 p.Write(buf[:padLen])
  15         }
  16 }
  17
  18 func writeUint64(p *poly1305.MAC, n int) {
  19         var buf [8]byte
  20         binary.LittleEndian.PutUint64(buf[:], uint64(n))
  21         p.Write(buf[:])
  22 }