PHP ActiveX Requires Chilkat v11.0.0+

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";

?>