github.com/varialus/godfly@v0.0.0-20130904042352-1934f9f095ab/src/pkg/crypto/cipher/gcm_test.go (about)

     1  // Copyright 2013 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package cipher_test
     6  
     7  import (
     8  	"bytes"
     9  	"crypto/aes"
    10  	"crypto/cipher"
    11  	"encoding/hex"
    12  	"testing"
    13  )
    14  
    15  // AES-GCM test vectors taken from gcmEncryptExtIV128.rsp from
    16  // http://csrc.nist.gov/groups/STM/cavp/index.html.
    17  var aesGCMTests = []struct {
    18  	key, nonce, plaintext, ad, result string
    19  }{
    20  	{
    21  		"11754cd72aec309bf52f7687212e8957",
    22  		"3c819d9a9bed087615030b65",
    23  		"",
    24  		"",
    25  		"250327c674aaf477aef2675748cf6971",
    26  	},
    27  	{
    28  		"ca47248ac0b6f8372a97ac43508308ed",
    29  		"ffd2b598feabc9019262d2be",
    30  		"",
    31  		"",
    32  		"60d20404af527d248d893ae495707d1a",
    33  	},
    34  	{
    35  		"77be63708971c4e240d1cb79e8d77feb",
    36  		"e0e00f19fed7ba0136a797f3",
    37  		"",
    38  		"7a43ec1d9c0a5a78a0b16533a6213cab",
    39  		"209fcc8d3675ed938e9c7166709dd946",
    40  	},
    41  	{
    42  		"7680c5d3ca6154758e510f4d25b98820",
    43  		"f8f105f9c3df4965780321f8",
    44  		"",
    45  		"c94c410194c765e3dcc7964379758ed3",
    46  		"94dca8edfcf90bb74b153c8d48a17930",
    47  	},
    48  	{
    49  		"7fddb57453c241d03efbed3ac44e371c",
    50  		"ee283a3fc75575e33efd4887",
    51  		"d5de42b461646c255c87bd2962d3b9a2",
    52  		"",
    53  		"2ccda4a5415cb91e135c2a0f78c9b2fdb36d1df9b9d5e596f83e8b7f52971cb3",
    54  	},
    55  	{
    56  		"ab72c77b97cb5fe9a382d9fe81ffdbed",
    57  		"54cc7dc2c37ec006bcc6d1da",
    58  		"007c5e5b3e59df24a7c355584fc1518d",
    59  		"",
    60  		"0e1bde206a07a9c2c1b65300f8c649972b4401346697138c7a4891ee59867d0c",
    61  	},
    62  	{
    63  		"fe47fcce5fc32665d2ae399e4eec72ba",
    64  		"5adb9609dbaeb58cbd6e7275",
    65  		"7c0e88c88899a779228465074797cd4c2e1498d259b54390b85e3eef1c02df60e743f1b840382c4bccaf3bafb4ca8429bea063",
    66  		"88319d6e1d3ffa5f987199166c8a9b56c2aeba5a",
    67  		"98f4826f05a265e6dd2be82db241c0fbbbf9ffb1c173aa83964b7cf5393043736365253ddbc5db8778371495da76d269e5db3e291ef1982e4defedaa2249f898556b47",
    68  	},
    69  	{
    70  		"ec0c2ba17aa95cd6afffe949da9cc3a8",
    71  		"296bce5b50b7d66096d627ef",
    72  		"b85b3753535b825cbe5f632c0b843c741351f18aa484281aebec2f45bb9eea2d79d987b764b9611f6c0f8641843d5d58f3a242",
    73  		"f8d00f05d22bf68599bcdeb131292ad6e2df5d14",
    74  		"a7443d31c26bdf2a1c945e29ee4bd344a99cfaf3aa71f8b3f191f83c2adfc7a07162995506fde6309ffc19e716eddf1a828c5a890147971946b627c40016da1ecf3e77",
    75  	},
    76  	{
    77  		"2c1f21cf0f6fb3661943155c3e3d8492",
    78  		"23cb5ff362e22426984d1907",
    79  		"42f758836986954db44bf37c6ef5e4ac0adaf38f27252a1b82d02ea949c8a1a2dbc0d68b5615ba7c1220ff6510e259f06655d8",
    80  		"5d3624879d35e46849953e45a32a624d6a6c536ed9857c613b572b0333e701557a713e3f010ecdf9a6bd6c9e3e44b065208645aff4aabee611b391528514170084ccf587177f4488f33cfb5e979e42b6e1cfc0a60238982a7aec",
    81  		"81824f0e0d523db30d3da369fdc0d60894c7a0a20646dd015073ad2732bd989b14a222b6ad57af43e1895df9dca2a5344a62cc57a3ee28136e94c74838997ae9823f3a",
    82  	},
    83  	{
    84  		"d9f7d2411091f947b4d6f1e2d1f0fb2e",
    85  		"e1934f5db57cc983e6b180e7",
    86  		"73ed042327f70fe9c572a61545eda8b2a0c6e1d6c291ef19248e973aee6c312012f490c2c6f6166f4a59431e182663fcaea05a",
    87  		"0a8a18a7150e940c3d87b38e73baee9a5c049ee21795663e264b694a949822b639092d0e67015e86363583fcf0ca645af9f43375f05fdb4ce84f411dcbca73c2220dea03a20115d2e51398344b16bee1ed7c499b353d6c597af8",
    88  		"aaadbd5c92e9151ce3db7210b8714126b73e43436d242677afa50384f2149b831f1d573c7891c2a91fbc48db29967ec9542b2321b51ca862cb637cdd03b99a0f93b134",
    89  	},
    90  	{
    91  		"fe9bb47deb3a61e423c2231841cfd1fb",
    92  		"4d328eb776f500a2f7fb47aa",
    93  		"f1cc3818e421876bb6b8bbd6c9",
    94  		"",
    95  		"b88c5c1977b35b517b0aeae96743fd4727fe5cdb4b5b42818dea7ef8c9",
    96  	},
    97  	{
    98  		"6703df3701a7f54911ca72e24dca046a",
    99  		"12823ab601c350ea4bc2488c",
   100  		"793cd125b0b84a043e3ac67717",
   101  		"",
   102  		"b2051c80014f42f08735a7b0cd38e6bcd29962e5f2c13626b85a877101",
   103  	},
   104  }
   105  
   106  func TestAESGCM(t *testing.T) {
   107  	for i, test := range aesGCMTests {
   108  		key, _ := hex.DecodeString(test.key)
   109  		aes, err := aes.NewCipher(key)
   110  		if err != nil {
   111  			t.Fatal(err)
   112  		}
   113  
   114  		nonce, _ := hex.DecodeString(test.nonce)
   115  		plaintext, _ := hex.DecodeString(test.plaintext)
   116  		ad, _ := hex.DecodeString(test.ad)
   117  		aesgcm, err := cipher.NewGCM(aes)
   118  		if err != nil {
   119  			t.Fatal(err)
   120  		}
   121  
   122  		ct := aesgcm.Seal(nil, nonce, plaintext, ad)
   123  		if ctHex := hex.EncodeToString(ct); ctHex != test.result {
   124  			t.Errorf("#%d: got %s, want %s", i, ctHex, test.result)
   125  			continue
   126  		}
   127  
   128  		plaintext2, err := aesgcm.Open(nil, nonce, ct, ad)
   129  		if err != nil {
   130  			t.Errorf("#%d: Open failed", i)
   131  			continue
   132  		}
   133  
   134  		if !bytes.Equal(plaintext, plaintext2) {
   135  			t.Errorf("#%d: plaintext's don't match: got %x vs %x", i, plaintext2, plaintext)
   136  			continue
   137  		}
   138  
   139  		if len(ad) > 0 {
   140  			ad[0] ^= 0x80
   141  			if _, err := aesgcm.Open(nil, nonce, ct, ad); err == nil {
   142  				t.Errorf("#%d: Open was successful after altering additional data", i)
   143  			}
   144  			ad[0] ^= 0x80
   145  		}
   146  
   147  		nonce[0] ^= 0x80
   148  		if _, err := aesgcm.Open(nil, nonce, ct, ad); err == nil {
   149  			t.Errorf("#%d: Open was successful after altering nonce", i)
   150  		}
   151  		nonce[0] ^= 0x80
   152  
   153  		ct[0] ^= 0x80
   154  		if _, err := aesgcm.Open(nil, nonce, ct, ad); err == nil {
   155  			t.Errorf("#%d: Open was successful after altering ciphertext", i)
   156  		}
   157  		ct[0] ^= 0x80
   158  	}
   159  }
   160  
   161  func BenchmarkAESGCM(b *testing.B) {
   162  	buf := make([]byte, 1024)
   163  	b.SetBytes(int64(len(buf)))
   164  
   165  	var key [16]byte
   166  	var nonce [12]byte
   167  	aes, _ := aes.NewCipher(key[:])
   168  	aesgcm, _ := cipher.NewGCM(aes)
   169  	var out []byte
   170  
   171  	b.ResetTimer()
   172  	for i := 0; i < b.N; i++ {
   173  		out = aesgcm.Seal(out[:0], nonce[:], buf, nonce[:])
   174  	}
   175  }