Create a JWS

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.CreateJws, which creates and returns a JWS from the current payload, headers, and signing key.

use chilkat();

$success = 0;

$jws = chilkat::CkJws->new();

#  Set the protected header for signer 0, specifying the signature algorithm (alg).
$header = chilkat::CkJsonObject->new();
$header->UpdateString("alg","HS256");
$success = $jws->SetProtectedHeader(0,$header);
if ($success == 0) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

#  Set the payload to be signed.
$bIncludeBom = 0;
$success = $jws->SetPayload("This is the content to sign.","utf-8",$bIncludeBom);
if ($success == 0) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

#  Provide the HMAC key (base64) for signer 0.  In production, obtain the key from a secure source
#  rather than hard-coding it.
$base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=";
$success = $jws->SetMacKey(0,$base64Key,"base64");
if ($success == 0) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

#  Create the JWS from the current payload, headers, and signing key.  The returned string is the
#  JWS (compact serialization by default).
$jwsCompact = $jws->createJws();
if ($jws->get_LastMethodSuccess() == 0) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

print $jwsCompact . "\r\n";