Dart

Set the JWS Payload

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetPayload, which sets the content to be signed. The charset converts the text to bytes, and a flag controls whether a byte-order mark is included.

Background. JWS (JSON Web Signature) integrity-protects a payload with a signature or MAC. The header alg names the algorithm; this example uses HMAC-SHA256 (HS256) with a symmetric MAC key.

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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final jws = CkJws();

  // Set the payload (the content to be signed).  The 2nd argument is the charset used to convert the
  // text to bytes, and the 3rd controls whether a byte-order mark is included.
  final bIncludeBom = false;
  try {
    jws.setPayload('This is the content to sign.', 'utf-8', bIncludeBom);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Payload set.');
}