/**
 * @license
 * Copyright 2017 Google Inc. All rights reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Tests for RSASSA-PKCS1-v1_5 signature implementations of Web Crypto APIs.
 */
goog.provide('wycheproof.webcryptoapi.RSASSA-PKCS1-V1_5');
goog.require('goog.testing.TestCase');
goog.require('goog.testing.asserts');
goog.require('goog.testing.jsunit');
goog.require('wycheproof.BigInteger');
goog.require('wycheproof.TestUtil');
goog.require('wycheproof.webcryptoapi.HashUtil');
goog.require('wycheproof.webcryptoapi.RsaUtil');

var TestUtil = wycheproof.TestUtil;
var RsaUtil = wycheproof.webcryptoapi.RsaUtil;
var HashUtil = wycheproof.webcryptoapi.HashUtil;
var BigInteger = wycheproof.BigInteger;
// Test vector file
var RSASSA_PKCS1_SIGNATURE_VECTOR_FILE
    = '../../testvectors/rsa_signature_test.json';

/**
 * Tests RSASSA-PKCS1-v1_5 signature implementation with a number of vectors.
 *
 * @return {!Promise}
 */
function testRsaSsaPkcs1Vectors() {
  var tv = TestUtil.readJsonTestVectorsFromFile(
      RSASSA_PKCS1_SIGNATURE_VECTOR_FILE);
  var testCase = new goog.testing.TestCase();

  for (var i = 0; i < tv['testGroups'].length; i++) {
    var tg = tv['testGroups'][i];
    var e = BigInteger.fromHex(tg['e']).toBase64Url();
    var n = BigInteger.fromHex(tg['n']).toBase64Url();
    var hashAlg = tg['sha'];
    if (SUPPORTED['hash'].indexOf(hashAlg) == -1) {
      continue;
    }
    for (var j = 0; j < tg['tests'].length; j++) {
      var tc = tg['tests'][j];
      var msg = BigInteger.fromHex(tc['message']).toArrayBuffer();
      var sig = TestUtil.hexToArrayBuffer(tc['sig']);
      var result = tc['result'];
      var tcId = tc['tcId'];

      // Creates new Test Case object
      var test = new RsaUtil.RsaSignatureTestCase(tcId, e, n, hashAlg,
          RsaUtil.RSASSA_PKCS1, msg, sig, result);
      testCase.addNewTest('Test case ' + tcId, RsaUtil.testVerification, test);
    }
  }

  return testCase.runTestsReturningPromise().then(TestUtil.checkTestCaseResult);
}