PHP ActiveX

Load JWK into PublicKey Object

See more JSON Web Signatures (JWS) Examples

Demonstrates how to load a Java Web Key (JWK) into a Chilkat public key object. PHP ActiveX

<?php

$success = 0;

// Imagine we have this JWK:

// {
// "kty":"RSA",
// "kid":"bilbo.baggins@hobbiton.example",
// "use":"sig",
// "n":"26381066103266289976070039679240841999340706859156341823971393693544846472963839705790075117105560154606562987481050889935247188300178764426769543782451174831475924241862817098997865881169498995546309260357488285676768114714548754913374731868063116787903918383610614912211576698081222844057810710088656983077876282582286966085572172471849443305250452393766960762340311496052418952315081937000716222751229644449475751932222180738210988190709824209639002026650048655399108647971010890335494074025258268035713167380057822555485524738518699437692145859633592396626258745090144803752145540471688039673495588314804430463791",
// "e":"65537"
// }
// 

$sbJwk = new COM("Chilkat.StringBuilder");
$success = $sbJwk->LoadFile('qa_data/jwk/simple_jwk_rsa.json','utf-8');
if ($success != 1) {
    print 'Failed to load simple JWK file.' . "\n";
    exit;
}

// Loading it into a Chilkat public key object is easy:
$pubkey = new COM("Chilkat.PublicKey");
$success = $pubkey->LoadFromString($sbJwk->getAsString());
if ($success == 0) {
    print $pubkey->LastErrorText . "\n";
    exit;
}

print 'Simple JWK loaded into public key object.' . "\n";

// ----------------------------------------------------------------------------------------------------------
// Demonstrate how to load a JWK that is contained within JSON into a public key object.

// {
//   "alg":"RS256",
//   "jwk":  {
//           "kty":"RSA",
//           "kid":"bilbo.baggins@hobbiton.example",
//           "use":"sig",
//           "n":"26381066103266289976070039679240841999340706859156341823971393693544846472963839705790075117105560154606562987481050889935247188300178764426769543782451174831475924241862817098997865881169498995546309260357488285676768114714548754913374731868063116787903918383610614912211576698081222844057810710088656983077876282582286966085572172471849443305250452393766960762340311496052418952315081937000716222751229644449475751932222180738210988190709824209639002026650048655399108647971010890335494074025258268035713167380057822555485524738518699437692145859633592396626258745090144803752145540471688039673495588314804430463791",
//           "e":"65537"
//           }
// }

$sbJwk2 = new COM("Chilkat.StringBuilder");
$success = $sbJwk2->LoadFile('qa_data/jwk/contained_jwk_rsa.json','utf-8');
if ($success == 0) {
    print $sbJwk2->LastErrorText . "\n";
    exit;
}

// Get the "jwk" part of the JSON..
$json = new COM("Chilkat.JsonObject");
$json->Load($sbJwk2->getAsString());

$jsonJwk = new COM("Chilkat.JsonObject");
$success = $json->ObjectOf2('jwk',$jsonJwk);
if ($success == 0) {
    print $json->LastErrorText . "\n";
    exit;
}

$pubkey2 = new COM("Chilkat.PublicKey");
$success = $pubkey2->LoadFromString($jsonJwk->emit());
if ($success == 0) {
    print $pubkey2->LastErrorText . "\n";
    exit;
}

print 'Contained JWK loaded into public key object.' . "\n";

?>