hmac_sha1/test/test.js

Implementation of HMAC algorithm in javascript with plain javascript strings, using SHA1 as underline hash functon.

var test = require('tap').test;
var HmacSha1 = require('../hmacSha1');

var hmac = new HmacSha1();

var key;
var baseStr;
var result;

test('digest /result in hex format/', function(t){


  key = 'key';
  baseStr = 'The quick brown fox jumps over the lazy dog' // it goes 'The quick brown fox jumps over a lazy dog'
                                                          // but '..the lazy dog' is reference example from wiki
                                                          // HMAC page, so will stick to it.
  result = hmac.digest(key, baseStr);
 // 1
  t.equal(result, 'de7c9b85b8b78aa6bc8a7a36f70a90701c9db4d9','Should be  equal to "de7c9...b4d9" ');

  key = 'kAcSOqF21Fu85e7zjz7ZN2U4ZRhfV3WpwPAoE3Z7kBw&LswwdoUaIvS8ltyTt5jkRh4J50vUPVVHtR2YPi5kE';
  baseStr = 'POST&https%3A%2F%2Fapi.twitter.com%2F1.1%2Fstatuses%2Fupdate.json&include_entities%3Dtrue%26oauth_consumer_key%3Dxvz1evFS4wEEPTGEFPHBog%26oauth_nonce%3DkYjzVBB8Y0ZFabxSWbWovY3uYSQ2pTgmZeNu2VS4cg%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1318622958%26oauth_token%3D370773112-GmHxMAgYyLbNEtIKZeRNFsMKPR9EyMZeS9weJAEb%26oauth_version%3D1.0%26status%3DHello%2520Ladies%2520%252B%2520Gentlemen%252C%2520a%2520signed%2520OAuth%2520request%2521';
  result = hmac.digest(key, baseStr);
// 2
  t.equal(result, '842b5299887e88760212a056ac4ec2ee1626b549','Should be  equal to "842b...b549"');

  key = 'The k\\e\\y'; // note that this is interpreted as 'The k\e\y'. Since it works with strings,
                       // watch out for escape sequence.
  baseStr = 'When deeds speak, words are nothing.';
  result = hmac.digest(key, baseStr)
// 3
  t.equal(result, 'f6fceaeacea4dd904122d08d79298937e2e077b3','Should be  equal to "f6fce...77b3"');

  key = "The k*e*y";
  baseStr = "He that breaks a thing to find out what it is has left the path of wisdom."
  result = hmac.digest(key, baseStr);
// 4  
  t.equal(result, '38e70f00ea9083c3034457ec0e0481d13080518a','Should be  equal to "38e7...518a"');
  
  key = 'key';
  baseStr = 'The quick brown fox jumps over the lazy dog¶';
  result = hmac.digest(key, baseStr) // no encoding is same as ascii (or latin-1)
// 5
  t.equals(result, '76ab5d4501e01293b2e5a8a4eca89d163b126e58','Should be equal to 76ab...6e58');
  
  result = hmac.digest(key, baseStr, 'utf8'); // with encoding
// 6  
  t.equal(result, '3947aff7433199e28a1229d2bd5c9236bcb472c4', 'Should be equal to 3947...72c4');
  
  key = 'key';
  baseStr = 'The quick brown fox jumps over the lazy dog¶漢字';
  result = hmac.digest(key, baseStr) // no encoding (same as latin-1);
// 7
  t.equal(result, '9eb183b6d3ca22cba277aea2369e84070eb80f84', 'Should be equal to 9eb1...0f84');
  
  key = 'key';
  baseStr = 'The quick brown fox jumps over the lazy dog¶漢字';
  result = hmac.digest(key, baseStr, 'utf8') // with encoding

// 8  
  t.equal(result, 'd9c3b167604efcee7eb847d671ac940b771eb6e1', 'Should be equal to  d9c3...b6e1') 
 
  key = 'key¶汉字';
  baseStr = 'The quick brown fox jumps over the lazy dog¶汉字💩'; // grave sign(latin-1), chinese chars, 
                                                                 // and one astral char (pile of poo) at the end
  result = hmac.digest(key, baseStr)
// 9
  t.equal(result, 'fa847bdf510da1df8869100250ad5385be219f7d', 'Should be equal to fa84...9f7d');

t.end();
});

test('digest /result in base64 format/', function(t){

  hmac = new HmacSha1('base64');

  key = 'key';
  baseStr = 'The quick brown fox jumps over the lazy dog'
  result = hmac.digest(key, baseStr);

 // 1
  t.equals(result, '3nybhbi3iqa8ino29wqQcBydtNk=', 'Should be equal to 3nyb...tNk=');
  
  // same key
  baseStr =  'The quick brown fox jumps over the lazy dog¶汉字💩';
  result = hmac.digest(key, baseStr, 'utf8') // with explicit encoding 
 // 2
  t.equals(result, 'LYsDRV73mlS0VAkq5WSr915Nnu4=', 'Should be equal to LYsD...nu4=')
  t.end();
  
})


var func;

test('asciiOnly',function(t){
  
   key =  "He who breaks a thing to find out what it is has left the path of wisdom";
   
   t.equals(hmac.asciiOnly(key), key.length, 'Should return byte length of ['+key.length+']');

   key ="¶汉字";
   func = hmac.asciiOnly.bind(hmac, [key])
   t.throws(func , hmac.messages.asciiOnly, 'Should throw new error with informative string')
   t.end(); 
});

var str
test('hexToString', function(t){
   str = "34"
   t.equals(hmac.hexToString(str), '4', 'Should return 4');
   
   str = "4e"
   t.equals(hmac.hexToString(str), 'N', 'Should return N');
  
   str = "4e7057f9";
   t.equals(hmac.hexToString(str), 'NpWù', 'Should return NpWù');
   t.end()
   
});