Sample for GoSodium - which seems to encrypt but not decrypt - need help.

crypt_fail.go

package main

import (
				"github.com/jasonmccampbell/GoSodium"
				"github.com/jasonmccampbell/GoSodium/sodium"
        "fmt"
)

func main() {
	alice_pk	:= gosodium.AllocPublicKey()
	alice_sk	:= gosodium.AllocSecretKey()
	bob_pk	 	:= gosodium.AllocPublicKey()
	bob_sk	 	:= gosodium.AllocSecretKey()
	nonce 		:= gosodium.NewBoxNonce()
	
	if sodium.BoxKeyPair(alice_sk, alice_pk) != 0 {
		panic("alice's keys not made")
	}
	if sodium.BoxKeyPair(bob_sk, bob_pk) != 0 {
		panic("bob's keys not made")
	}
	fmt.Println("ZeroBytes = ",sodium.BoxZeroBytes())
	message 			:= []byte("There is much to be said for extensive research before playing golf with strangers, especially on Sundays.");
	paddedMessage := make([]byte,sodium.BoxZeroBytes(),len(message)+sodium.BoxZeroBytes())
	
	for i := range message {
		paddedMessage = append(paddedMessage, message[i])
	}
	
	fmt.Println("Message length - ", len(message))
	cypherTextOut := make([]byte,len(paddedMessage))
	
	if n := sodium.Box(cypherTextOut , paddedMessage , nonce, bob_pk, alice_sk); n != 0 {
		fmt.Println("Box returned ",n)
		return
	}
	fmt.Println ("Nonce ", nonce)	
	fmt.Println("Box message ",paddedMessage)
	fmt.Println("Box crypto  ",cypherTextOut)
	
	messageOut := make([]byte, len(cypherTextOut))
	sodium.MemZero(cypherTextOut[:sodium.BoxZeroBytes()])
	fmt.Println("Box crypto (z) ",cypherTextOut)
	
	if n := sodium.BoxOpen(messageOut,cypherTextOut,nonce,alice_pk,bob_sk); n != 0 {
		fmt.Println("BoxOpen returned ",n)
		return
	}
	
	fmt.Println("Box message out ",messageOut)
	
	fmt.Println("Done")

}