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package main

import (
	"bytes"
	"encoding/base64"
	"encoding/binary"
)

func DecodeB64(v interface{}, b []byte) error {
	buf := bytes.NewReader(b)
	dec := base64.NewDecoder(base64.StdEncoding, buf)
	if err := binary.Read(dec, binary.BigEndian, v); err != nil {
		return err
	}
	return nil
}

func EncodeB64(v interface{}) ([]byte, error) {
	buf := new(bytes.Buffer)
	enc := base64.NewEncoder(base64.StdEncoding, buf)
	if err := binary.Write(enc, binary.BigEndian, v); err != nil {
		return nil, err
	}
	if err := enc.Close(); err != nil {
		return nil, err
	}
	return buf.Bytes(), nil
}