Andreas Hocevar
279 lines
8.7 KiB
JavaScript
279 lines
8.7 KiB
JavaScript
// Copyright 2014 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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goog.provide('goog.crypt.Sha2_64bit_test');
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goog.setTestOnly('goog.crypt.Sha2_64bit_test');
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goog.require('goog.array');
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goog.require('goog.crypt');
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goog.require('goog.crypt.Sha384');
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goog.require('goog.crypt.Sha512');
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goog.require('goog.crypt.Sha512_256');
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goog.require('goog.crypt.hashTester');
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goog.require('goog.testing.jsunit');
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goog.require('goog.userAgent');
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/**
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* Each object in the test vector array is a source text and one or more
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* hashes of that source text. The source text is either a string or a
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* byte array.
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* <p>
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* All hash values, except for the empty string, are from public sources:
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* csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf
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* csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA384.pdf
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* csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA512_256.pdf
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* csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA2_Additional.pdf
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* en.wikipedia.org/wiki/SHA-2#Examples_of_SHA-2_variants
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*/
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var TEST_VECTOR = [
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{
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// Make sure the algorithm correctly handles the empty string
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source:
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'',
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512:
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'cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce' +
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'47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e'
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},
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{
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source:
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'abc',
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512:
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'ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a' +
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'2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f',
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384:
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'cb00753f45a35e8bb5a03d699ac65007272c32ab0eded163' +
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'1a8b605a43ff5bed8086072ba1e7cc2358baeca134c825a7',
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256:
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'53048e2681941ef99b2e29b76b4c7dabe4c2d0c634fc6d46e0e2f13107e7af23'
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},
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{
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source:
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'abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn' +
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'hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu',
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512:
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'8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018' +
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'501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909',
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384:
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'09330c33f71147e83d192fc782cd1b4753111b173b3b05d2' +
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'2fa08086e3b0f712fcc7c71a557e2db966c3e9fa91746039',
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256:
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'3928e184fb8690f840da3988121d31be65cb9d3ef83ee6146feac861e19b563a'
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},
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{
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source:
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'The quick brown fox jumps over the lazy dog',
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512:
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'07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb64' +
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'2e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6',
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384:
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'ca737f1014a48f4c0b6dd43cb177b0afd9e5169367544c49' +
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'4011e3317dbf9a509cb1e5dc1e85a941bbee3d7f2afbc9b1',
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256:
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'dd9d67b371519c339ed8dbd25af90e976a1eeefd4ad3d889005e532fc5bef04d'
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}
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];
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/**
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* For each integer key N, the value is the SHA-512 value of a string
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* consisting of N repetitions of the character 'a'.
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*/
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var TEST_FENCEPOST_VECTOR = {
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110:
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'c825949632e509824543f7eaf159fb6041722fce3c1cdcbb613b3d37ff107c51' +
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'9417baac32f8e74fe29d7f4823bf6886956603dca5354a6ed6e4a542e06b7d28',
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111:
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'fa9121c7b32b9e01733d034cfc78cbf67f926c7ed83e82200ef8681819692176' +
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'0b4beff48404df811b953828274461673c68d04e297b0eb7b2b4d60fc6b566a2',
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112:
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'c01d080efd492776a1c43bd23dd99d0a2e626d481e16782e75d54c2503b5dc32' +
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'bd05f0f1ba33e568b88fd2d970929b719ecbb152f58f130a407c8830604b70ca',
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113:
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'55ddd8ac210a6e18ba1ee055af84c966e0dbff091c43580ae1be703bdb85da31' +
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'acf6948cf5bd90c55a20e5450f22fb89bd8d0085e39f85a86cc46abbca75e24d'
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};
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/**
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* Simple sanity tests for hash functions.
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*/
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function testBasicOperations() {
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var sha512 = new goog.crypt.Sha512();
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goog.crypt.hashTester.runBasicTests(sha512);
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var sha384 = new goog.crypt.Sha384();
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goog.crypt.hashTester.runBasicTests(sha384);
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var sha256 = new goog.crypt.Sha512_256();
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goog.crypt.hashTester.runBasicTests(sha256);
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}
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/**
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* Function called by the actual testers to ensure that specific strings
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* hash to specific published values.
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*
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* Each item in the vector has a "source" and one or more additional keys.
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* If the item has a key matching the key argument passed to this
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* function, it is the expected value of the hash function.
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*
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* @param {!goog.crypt.Sha2_64bit} hasher The hasher to test
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* @param {number} length The length of the resulting hash, in bits.
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* Also the key to use in TEST_VECTOR for the expected hash value
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*/
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function hashGoldenTester(hasher, length) {
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goog.array.forEach(TEST_VECTOR, function(data) {
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hasher.update(data.source);
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var digest = hasher.digest();
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assertEquals('Hash digest has the wrong length', length, digest.length * 8);
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if (data[length]) {
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// We're given an expected value
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var expected = goog.crypt.hexToByteArray(data[length]);
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assertElementsEquals(
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'Wrong result for hash' + length + '(\'' + data.source + '\')',
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expected, digest);
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}
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hasher.reset();
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});
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}
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/** Test that Sha512() returns the published values */
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function testHashing512() {
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hashGoldenTester(new goog.crypt.Sha512(), 512);
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}
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/** Test that Sha384 returns the published values */
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function testHashing384() {
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hashGoldenTester(new goog.crypt.Sha384(), 384);
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}
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/** Test that Sha512_256 returns the published values */
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function testHashing256() {
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hashGoldenTester(new goog.crypt.Sha512_256(), 256);
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}
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/** Test that the opt_length works */
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function testHashing_optLength() {
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var hasher = new goog.crypt.Sha512();
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hasher.update('1234567890');
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var digest1 = hasher.digest();
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hasher.reset();
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hasher.update('12345678901234567890', 10);
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var digest2 = hasher.digest();
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assertElementsEquals(digest1, digest2);
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}
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/**
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* Make sure that we correctly handle strings whose length is 110-113.
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* This is the area where we are likely to hit fencepost errors in the padding
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* code.
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*/
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function testFencepostErrors() {
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var hasher = new goog.crypt.Sha512();
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A64 = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
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A128 = A64 + A64;
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for (var i = 110; i <= 113; i++) {
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hasher.update(A128, i);
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var digest = hasher.digest();
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var expected = goog.crypt.hexToByteArray(TEST_FENCEPOST_VECTOR[i]);
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assertElementsEquals('Fencepost ' + i, expected, digest);
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hasher.reset();
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}
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}
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/** Test one really large string using SHA512 */
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function testHashing512Large() {
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// This test tends to time out on IE7.
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if (!goog.userAgent.IE || goog.userAgent.isVersionOrHigher('8')) {
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var hasher = new goog.crypt.Sha512();
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hasher.update(goog.array.repeat(0, 1000000));
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var digest = hasher.digest();
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var expected = goog.crypt.hexToByteArray(
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'ce044bc9fd43269d5bbc946cbebc3bb711341115cc4abdf2edbc3ff2c57ad4b1' +
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'5deb699bda257fea5aef9c6e55fcf4cf9dc25a8c3ce25f2efe90908379bff7ed');
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assertElementsEquals(expected, digest);
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}
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}
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/** Check that the code throws an error for bad input */
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function testBadInput_nullNotAllowed() {
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var hasher = new goog.crypt.Sha512();
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assertThrows('Null input not allowed', function() {
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hasher.update({});
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});
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}
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function testBadInput_noFloatingPoint() {
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var hasher = new goog.crypt.Sha512();
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assertThrows('Floating point not allows', function() {
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hasher.update([1, 2, 3, 4, 4.5]);
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});
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}
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function testBadInput_negativeNotAllowed() {
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var hasher = new goog.crypt.Sha512();
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assertThrows('Negative not allowed', function() {
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hasher.update([1, 2, 3, 4, -10]);
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});
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}
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function testBadInput_mustBeByteArray() {
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var hasher = new goog.crypt.Sha512();
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assertThrows('Must be byte array', function() {
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hasher.update([1, 2, 3, 4, {}]);
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});
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}
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function testBadInput_byteTooLarge() {
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var hasher = new goog.crypt.Sha512();
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assertThrows('>255 not allowed', function() {
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hasher.update([1, 2, 3, 4, 256]);
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});
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}
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function testBadInput_characterTooLarge() {
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var hasher = new goog.crypt.Sha512();
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assertThrows('>255 not allowed', function() {
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hasher.update('abc' + String.fromCharCode(256));
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});
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}
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function testHasherNeedsReset_beforeDigest() {
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var hasher = new goog.crypt.Sha512();
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hasher.update('abc');
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hasher.digest();
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assertThrows('Need reset after digest', function() {
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hasher.digest();
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});
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}
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function testHasherNeedsReset_beforeUpdate() {
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var hasher = new goog.crypt.Sha512();
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hasher.update('abc');
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hasher.digest();
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assertThrows('Need reset after digest', function() {
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hasher.update('abc');
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});
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}
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