Andreas Hocevar
103 lines
3.7 KiB
JavaScript
103 lines
3.7 KiB
JavaScript
// Copyright 2012 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.Sha256Test');
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goog.setTestOnly('goog.crypt.Sha256Test');
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goog.require('goog.array');
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goog.require('goog.crypt');
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goog.require('goog.crypt.Sha256');
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goog.require('goog.crypt.hashTester');
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goog.require('goog.testing.jsunit');
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function testBasicOperations() {
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var sha256 = new goog.crypt.Sha256();
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goog.crypt.hashTester.runBasicTests(sha256);
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}
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function testHashing() {
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// Some test vectors from:
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// csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf
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var sha256 = new goog.crypt.Sha256();
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// Empty message.
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sha256.update([]);
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assertEquals(
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'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855',
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goog.crypt.byteArrayToHex(sha256.digest()));
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// NIST one block test vector.
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sha256.reset();
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sha256.update(goog.crypt.stringToByteArray('abc'));
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assertEquals(
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'ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad',
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goog.crypt.byteArrayToHex(sha256.digest()));
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// NIST multi-block test vector.
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sha256.reset();
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sha256.update(
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goog.crypt.stringToByteArray(
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'abcdbcdecdefdefgefghfghighij' +
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'hijkijkljklmklmnlmnomnopnopq'));
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assertEquals(
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'248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1',
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goog.crypt.byteArrayToHex(sha256.digest()));
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// Message larger than one block (but less than two).
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sha256.reset();
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var biggerThanOneBlock = 'abcdbcdecdefdefgefghfghighij' +
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'hijkijkljklmklmnlmnomnopnopq' +
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'asdfljhr78yasdfljh45opa78sdf' +
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'120839414104897aavnasdfafasd';
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assertTrue(biggerThanOneBlock.length > goog.crypt.Sha2.BLOCKSIZE_ &&
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biggerThanOneBlock.length < 2 * goog.crypt.Sha2.BLOCKSIZE_);
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sha256.update(goog.crypt.stringToByteArray(biggerThanOneBlock));
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assertEquals(
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'390a5035433e46b740600f3117d11ece3c64706dc889106666ac04fe4f458abc',
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goog.crypt.byteArrayToHex(sha256.digest()));
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// Message larger than two blocks.
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sha256.reset();
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var biggerThanTwoBlocks = 'abcdbcdecdefdefgefghfghighij' +
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'hijkijkljklmklmnlmnomnopnopq' +
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'asdfljhr78yasdfljh45opa78sdf' +
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'120839414104897aavnasdfafasd' +
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'laasdouvhalacbnalalseryalcla';
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assertTrue(biggerThanTwoBlocks.length > 2 * goog.crypt.Sha2.BLOCKSIZE_);
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sha256.update(goog.crypt.stringToByteArray(biggerThanTwoBlocks));
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assertEquals(
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'd655c513fd347e9be372d891f8bb42895ca310fabf6ead6681ebc66a04e84db5',
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goog.crypt.byteArrayToHex(sha256.digest()));
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}
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function testPreschedule() {
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// Test using prescheduled messages.
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var sha = new goog.crypt.Sha256();
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var message = goog.crypt.hexToByteArray(
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'd9b28b643d16efc8a17a532c05deb79069421bf4cda67f58310ae3bc956e4720' +
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'f9d2ab845d360fe8c19a734c25fed7b089623b14edc69f78512a03dcb58e6740');
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var scheduled = sha.preschedule(message);
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sha.scheduledUpdate(scheduled);
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var w_scheduled = goog.array.toArray(sha.hash_);
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var digest_scheduled = sha.digest();
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sha.reset();
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sha.update(message);
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var w_afterupdate = goog.array.toArray(sha.hash_);
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assertElementsEquals(w_scheduled, w_afterupdate);
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assertElementsEquals(sha.digest(), digest_scheduled);
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}
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