Set the Optional JWS Unprotected Header

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetUnprotectedHeader, which sets the optional unprotected header for a signature.

use chilkat();

$success = 0;

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

#  Protected header specifying HMAC-SHA256.
$header = chilkat::CkJsonObject->new();
$header->UpdateString("alg","HS256");
$success = $jws->SetProtectedHeader(0,$header);
if ($success == 0) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

#  Set the optional unprotected header for signature 0.  Unlike the protected header, it is not
#  covered by the signature.  It is carried in the JSON serialization forms of a JWS.
$unprotected = chilkat::CkJsonObject->new();
$unprotected->UpdateString("kid","signer-key-1");
$success = $jws->SetUnprotectedHeader(0,$unprotected);
if ($success == 0) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

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

$base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=";
$success = $jws->SetMacKey(0,$base64Key,"base64");
if ($success == 0) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

#  Because an unprotected header is present, the JWS is produced in a JSON serialization form.
$jwsJson = $jws->createJws();
if ($jws->get_LastMethodSuccess() == 0) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

print $jwsJson . "\r\n";