Compare generated (API) token length between Branca and JWT.

branca-compare.php

<?php

/* https://github.com/tuupola/branca */

require __DIR__ . "/vendor/autoload.php";

use Branca\Branca;
use Branca\Protobuf\Payload as Protobuf;
use Firebase\JWT\JWT;
use MessagePack\Packer;
use MessagePack\Unpacker;

$key = "supersecretkeyyoushouldnotcommit";

/* Unlike JWT, Branca has timestamp in header, not in payload. */
$timestamp = 1356999524;

$payload = [
    "iss" => "https://example.org",
    "sub" => "[email protected]",
    "nbf" => 1357000000
];

$json = json_encode($payload);

$msgpack = (new Packer)->pack($payload);

$protobuf = new Protobuf;
$protobuf->setIss("https://example.org");
$protobuf->setSub("[email protected]");
$protobuf->setNbf(1357000000);

$branca = new Branca($key);

print "** Branca and JSON\n";
$token = $branca->encode($json, $timestamp);
var_dump($token);
print "\n";

print "** Branca and MessagePack\n";
$token = $branca->encode($msgpack, $timestamp);
var_dump($token);
print "\n";

print "** Branca and Protocol Buffers\n";
$token = $branca->encode($protobuf->serializeToString(), $timestamp);
var_dump($token);
print "\n";


/* JWT has timestamp in iat claim. */
$payload["iat"] = $timestamp;

print "** JWT\n";
$jwt = JWT::encode($payload, $key);
var_dump($jwt);
print "\n";

stdout.txt

** Branca and JSON
/Users/tuupola/Code/php/branca-test/compare.php:37:
string(151) "5K0UhjLYfxeKOteNITvgDRIksLdssYQq3QY631RG8lCtfJEvToIczksrCxbeon9cuKBZZIJduKlY7Tyh48u76vmtm9UBLLJcMXfgKXrpzO8mJpmGhXONkTWPcdvMdI14oG5LTDYYl30CIuVCgh0Ioas"

** Branca and MessagePack
/Users/tuupola/Code/php/branca-test/compare.php:42:
string(127) "2U1rjxk6WT2xOX5MzaI7ZInfxwuEjtOFUISh8Gu4EiqvvpUTqT32bNyMREHZtpDvK5tGNxFHJsfcbREXrRGOSwfUFk0szovOfuqrSkH6dLPT49kZOTyDIrfgNFHy95O"

** Branca and Protocol Buffers
/Users/tuupola/Code/php/branca-test/compare.php:47:
string(113) "PU7L2pPyN5iBYdUlGSXAL903ywxL06R7Z5r5rmGAt90Vccv57kt7chI3xrDquGYnSGb3Luhj9hedEGNPbKS3tjDRyk8ivfbkLJvc9qw22pyAsDQI4"

** JWT
/Users/tuupola/Code/php/branca-test/compare.php:56:
string(209) "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJodHRwczpcL1wvZXhhbXBsZS5vcmciLCJzdWIiOiJ0dXVwb2xhQGFwcGVsc2lpbmkubmV0IiwibmJmIjoxMzU3MDAwMDAwLCJpYXQiOjEzNTY5OTk1MjR9.TG4zI3uIdalmBXRojIgFIEVA3QAcOVCLFvdwEN_-q7c"