tests/phpunit/includes/utils/MWCryptHKDFTest.php

   1 <?php
   2 /**
   3  *
   4  * @group HKDF
   5  */
   6
   7 class MWCryptHKDFTest extends MediaWikiTestCase {
   8
   9         /**
  10          * Test basic usage works
  11          */
  12         public function testGenerate() {
  13                 $a = MWCryptHKDF::generateHex( 64 );
  14                 $b = MWCryptHKDF::generateHex( 64 );
  15
  16                 $this->assertTrue( strlen( $a ) == 64, "MWCryptHKDF produced fewer bytes than expected" );
  17                 $this->assertTrue( strlen( $b ) == 64, "MWCryptHKDF produced fewer bytes than expected" );
  18                 $this->assertFalse( $a == $b, "Two runs of MWCryptHKDF produced the same result." );
  19         }
  20
  21         /**
  22          * @dataProvider providerRfc5869
  23          */
  24         public function testRfc5869( $hash, $ikm, $salt, $info, $L, $prk, $okm ) {
  25                 $ikm = pack( 'H*', $ikm );
  26                 $salt = pack( 'H*', $salt );
  27                 $info = pack( 'H*', $info );
  28                 $okm = pack( 'H*', $okm );
  29                 $result = MWCryptHKDF::HKDF( $hash, $ikm, $salt, $info, $L );
  30                 $this->assertEquals( $okm, $result );
  31         }
  32
  33         /**
  34          * Test vectors from Appendix A on http://tools.ietf.org/html/rfc5869
  35          */
  36         public static function providerRfc5869() {
  37
  38                 return array(
  39                         // A.1
  40                         array( 'sha256',
  41                                 '0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b', // ikm
  42                                 '000102030405060708090a0b0c', // salt
  43                                 'f0f1f2f3f4f5f6f7f8f9', // context
  44                                 42, // bytes
  45                                 '077709362c2e32df0ddc3f0dc47bba6390b6c73bb50f9c3122ec844ad7c2b3e5', // prk
  46                                 '3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865' // okm
  47                         ),
  48                         // A.2
  49                         array( 'sha256',
  50                                 '000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f',
  51                                 '606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeaf',
  52                                 'b0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfeff',
  53                                 82,
  54                                 '06a6b88c5853361a06104c9ceb35b45cef760014904671014a193f40c15fc244',
  55                                 'b11e398dc80327a1c8e7f78c596a49344f012eda2d4efad8a050cc4c19afa97c59045a99cac7827271cb41c65e590e09da3275600c2f09b8367793a9aca3db71cc30c58179ec3e87c14c01d5c1f3434f1d87'
  56                         ),
  57                         // A.3
  58                         array( 'sha256',
  59                                 '0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b', // ikm
  60                                 '', // salt
  61                                 '', // context
  62                                 42, // bytes
  63                                 '19ef24a32c717b167f33a91d6f648bdf96596776afdb6377ac434c1c293ccb04', // prk
  64                                 '8da4e775a563c18f715f802a063c5a31b8a11f5c5ee1879ec3454e5f3c738d2d9d201395faa4b61a96c8' // okm
  65                         ),
  66                         // A.4
  67                         array( 'sha1',
  68                                 '0b0b0b0b0b0b0b0b0b0b0b', // ikm
  69                                 '000102030405060708090a0b0c', // salt
  70                                 'f0f1f2f3f4f5f6f7f8f9', // context
  71                                 42, // bytes
  72                                 '9b6c18c432a7bf8f0e71c8eb88f4b30baa2ba243', // prk
  73                                 '085a01ea1b10f36933068b56efa5ad81a4f14b822f5b091568a9cdd4f155fda2c22e422478d305f3f896' // okm
  74                         ),
  75                         // A.5
  76                         array( 'sha1',
  77                                 '000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f', // ikm
  78                                 '606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeaf', // salt
  79                                 'b0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfeff', // context
  80                                 82, // bytes
  81                                 '8adae09a2a307059478d309b26c4115a224cfaf6', // prk
  82                                 '0bd770a74d1160f7c9f12cd5912a06ebff6adcae899d92191fe4305673ba2ffe8fa3f1a4e5ad79f3f334b3b202b2173c486ea37ce3d397ed034c7f9dfeb15c5e927336d0441f4c4300e2cff0d0900b52d3b4' // okm
  83                         ),
  84                 );
  85
  86         }
  87
  88
  89 }