Set the JWS Protected Header

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetProtectedHeader, which sets the integrity-protected header for a signer from a JsonObject. The header specifies the signature algorithm (alg).

import 'package:chilkat/chilkat.dart';

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

  // Build the JWS protected header.  The "alg" member names the signature algorithm.
  final header = CkJsonObject();
  header.updateString('alg', 'HS256');

  // Set the protected header for signer index 0.  The protected header is integrity-protected: it is
  // covered by the signature.
  try {
    jws.setProtectedHeader(0, header);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Protected header set.');
}