PHP Extension

Create JWT Using Ed25519 Private Key (EdDSA)

See more JSON Web Token (JWT) Examples

Demonstrates how to create a JWT using an Ed25519 private key. If the private key is Ed25519, which is an EdDSA algorithm, the JOSE header's "alg" member should be set to "EdDSA".

Note: This example requires Chilkat v9.5.0.95 or greater.

PHP Extension

<?php

include("chilkat.php");

$success = false;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Demonstrates how to create a JWT using an Ed25519 private key.

$privKey = new CkPrivateKey();

// Load an Ed25519 (EdDSA) private key from a PEM file.
$success = $privKey->LoadPemFile('qa_data/eddsa/ed25519.pem');
if ($success != true) {
    print $privKey->lastErrorText() . "\n";
    exit;
}

$jwt = new CkJwt();

// Build the JOSE header
$jose = new CkJsonObject();

// -----------------------------------------------------------------
// Note: This example requires Chilkat v9.5.0.95 or greater.
// -----------------------------------------------------------------
$success = $jose->AppendString('alg','EdDSA');
$success = $jose->AppendString('typ','JWT');

// Now build the JWT claims (also known as the payload)
$claims = new CkJsonObject();
$success = $claims->AppendString('iss','http://example.org');
$success = $claims->AppendString('sub','John');
$success = $claims->AppendString('aud','http://example.com');

// (optional) Set the timestamp of when the JWT was created to now.
$curDateTime = $jwt->GenNumericDate(0);
$success = $claims->AddIntAt(-1,'iat',$curDateTime);

// (optional)  Set the "not process before" timestamp to now.
$success = $claims->AddIntAt(-1,'nbf',$curDateTime);

// (optional)  Set the timestamp defining an expiration time (end time) for the token
// to be now + 1 hour (3600 seconds)
$success = $claims->AddIntAt(-1,'exp',$curDateTime + 3600);

// Produce the smallest possible JWT:
$jwt->put_AutoCompact(true);

// Create the JWT token.
$token = $jwt->createJwtPk($jose->emit(),$claims->emit(),$privKey);

print $token . "\n";

// Example output:
// eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwOi8vZXhhbXBsZS5vcmciLCJzdWIiOiJKb2huIiwiYXVkIjoiaHR0cDovL2V4YW1wbGUuY29tIiwiaWF0IjoxNjg3OTcwNjgyLCJuYmYiOjE2ODc5NzA2ODIsImV4cCI6MTY4Nzk3NDI4Mn0.eyfrDJfuWJSJVJPfAUYb_p_c-LF_YULHGRaZx82MLLjMLCCFEEGckp8icuayf5bLW9ah20LzYYt0JgOBIB0RDg

?>