jose-jwe-jws/test/jose-jws-ecdsa-test.js

Library to encrypt and decrypt data in JSON Web Encryption (JWE) format and to sign data in JSON Web Signature (JWS) format. Leverages Browser's native web crypto API.

QUnit.test('signature using ECDSA P-256 with SHA-256 (keys from appendix-A.3.1)', function (assert) {
  const ecKey = {
    'kty': 'EC',
    'crv': 'P-256',
    'x': 'f83OJ3D2xF1Bg8vub9tLe1gHMzV76e8Tus9uPHvRVEU',
    'y': 'x_FEzRu9m36HLN_tue659LNpXW6pCyStikYjKIWI5a0',
    'd': 'jpsQnnGQmL-YBIffH1136cspYG6-0iY7X1fCE9-E9LI'
  };
  const cryptographer = new Jose.WebCryptographer();
  cryptographer.setContentSignAlgorithm('ES256');
  const signer = new Jose.JoseJWS.Signer(cryptographer);
  const plaintext = 'The true sign of intelligence is not knowledge but imagination.';
  const verified = signer
    .addSigner(ecKey, 'A.3.1')
    .then(function () {
      return signer.sign(plaintext);
    })
    .then(function (signature) {
      const verifier = new Jose.JoseJWS.Verifier(cryptographer, signature);
      delete ecKey.d;
      return verifier.addRecipient(ecKey, 'A.3.1').then(function () { return verifier.verify(); });
    })
    .then(function (result) {
      return result[0].verified && result[0].payload === plaintext;
    });
  assert.willEqual(verified, true, 'JWS message has been correctly verified');
});