(PHP Extension) Load JWK into PublicKey Object

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

Note: This example requires Chilkat v9.5.0.66 or greater.

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

//  Imagine we have this JWK:

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

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

//  Loading it into a Chilkat public key object is easy:
$pubkey = new CkPublicKey();
$success = $pubkey->LoadFromString($sbJwk->getAsString());
if ($success != true) {
    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 CkStringBuilder();
$success = $sbJwk2->LoadFile('qa_data/jwk/contained_jwk_rsa.json','utf-8');
if ($success != true) {
    print 'Failed to load JWK file.' . "\n";
    exit;
}

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

// jsonJwk is a CkJsonObject
$jsonJwk = $json->ObjectOf('jwk');
if ($json->get_LastMethodSuccess() != true) {
    print 'No jwk member exists.' . "\n";
    exit;
}

$pubkey2 = new CkPublicKey();
$success = $pubkey2->LoadFromString($jsonJwk->emit());
if ($success != true) {
    print $pubkey2->lastErrorText() . "\n";
    exit;
}

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


?>