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React Native

Set the JWE Protected Header

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetProtectedHeader, which sets the integrity-protected JWE header from a JsonObject. The header specifies the key-management algorithm (alg) and content-encryption algorithm (enc).

Background. The protected header is integrity-protected and applies to all recipients. It is configured before encrypting.

Chilkat React Native Downloads

React Native
import { JsonObject, Jwe } from '@chilkat/react-native'

function chilkatExample() {
  const jwe = new Jwe();

  // Build the JWE protected header.  The "alg" member names the key-management algorithm and the "enc"
  // member names the content-encryption algorithm.
  const header = new JsonObject();
  header.updateString('alg', 'A256KW');
  header.updateString('enc', 'A256GCM');

  // Set the protected header on the JWE.  The protected header is integrity-protected and applies to
  // all recipients.
  try {
    jwe.setProtectedHeader(header);
  } catch {
    console.log(jwe.lastErrorText);
    return;
  }

  console.log('Protected header set.');
}