prf_test.go

Documentation: crypto/tls

		 1  // Copyright 2009 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 tls
		 6  
		 7  import (
		 8  	"encoding/hex"
		 9  	"testing"
		10  )
		11  
		12  type testSplitPreMasterSecretTest struct {
		13  	in, out1, out2 string
		14  }
		15  
		16  var testSplitPreMasterSecretTests = []testSplitPreMasterSecretTest{
		17  	{"", "", ""},
		18  	{"00", "00", "00"},
		19  	{"0011", "00", "11"},
		20  	{"001122", "0011", "1122"},
		21  	{"00112233", "0011", "2233"},
		22  }
		23  
		24  func TestSplitPreMasterSecret(t *testing.T) {
		25  	for i, test := range testSplitPreMasterSecretTests {
		26  		in, _ := hex.DecodeString(test.in)
		27  		out1, out2 := splitPreMasterSecret(in)
		28  		s1 := hex.EncodeToString(out1)
		29  		s2 := hex.EncodeToString(out2)
		30  		if s1 != test.out1 || s2 != test.out2 {
		31  			t.Errorf("#%d: got: (%s, %s) want: (%s, %s)", i, s1, s2, test.out1, test.out2)
		32  		}
		33  	}
		34  }
		35  
		36  type testKeysFromTest struct {
		37  	version																				uint16
		38  	suite																					*cipherSuite
		39  	preMasterSecret																string
		40  	clientRandom, serverRandom										 string
		41  	masterSecret																	 string
		42  	clientMAC, serverMAC													 string
		43  	clientKey, serverKey													 string
		44  	macLen, keyLen																 int
		45  	contextKeyingMaterial, noContextKeyingMaterial string
		46  }
		47  
		48  func TestKeysFromPreMasterSecret(t *testing.T) {
		49  	for i, test := range testKeysFromTests {
		50  		in, _ := hex.DecodeString(test.preMasterSecret)
		51  		clientRandom, _ := hex.DecodeString(test.clientRandom)
		52  		serverRandom, _ := hex.DecodeString(test.serverRandom)
		53  
		54  		masterSecret := masterFromPreMasterSecret(test.version, test.suite, in, clientRandom, serverRandom)
		55  		if s := hex.EncodeToString(masterSecret); s != test.masterSecret {
		56  			t.Errorf("#%d: bad master secret %s, want %s", i, s, test.masterSecret)
		57  			continue
		58  		}
		59  
		60  		clientMAC, serverMAC, clientKey, serverKey, _, _ := keysFromMasterSecret(test.version, test.suite, masterSecret, clientRandom, serverRandom, test.macLen, test.keyLen, 0)
		61  		clientMACString := hex.EncodeToString(clientMAC)
		62  		serverMACString := hex.EncodeToString(serverMAC)
		63  		clientKeyString := hex.EncodeToString(clientKey)
		64  		serverKeyString := hex.EncodeToString(serverKey)
		65  		if clientMACString != test.clientMAC ||
		66  			serverMACString != test.serverMAC ||
		67  			clientKeyString != test.clientKey ||
		68  			serverKeyString != test.serverKey {
		69  			t.Errorf("#%d: got: (%s, %s, %s, %s) want: (%s, %s, %s, %s)", i, clientMACString, serverMACString, clientKeyString, serverKeyString, test.clientMAC, test.serverMAC, test.clientKey, test.serverKey)
		70  		}
		71  
		72  		ekm := ekmFromMasterSecret(test.version, test.suite, masterSecret, clientRandom, serverRandom)
		73  		contextKeyingMaterial, err := ekm("label", []byte("context"), 32)
		74  		if err != nil {
		75  			t.Fatalf("ekmFromMasterSecret failed: %v", err)
		76  		}
		77  
		78  		noContextKeyingMaterial, err := ekm("label", nil, 32)
		79  		if err != nil {
		80  			t.Fatalf("ekmFromMasterSecret failed: %v", err)
		81  		}
		82  
		83  		if hex.EncodeToString(contextKeyingMaterial) != test.contextKeyingMaterial ||
		84  			hex.EncodeToString(noContextKeyingMaterial) != test.noContextKeyingMaterial {
		85  			t.Errorf("#%d: got keying material: (%s, %s) want: (%s, %s)", i, contextKeyingMaterial, noContextKeyingMaterial, test.contextKeyingMaterial, test.noContextKeyingMaterial)
		86  		}
		87  	}
		88  }
		89  
		90  // These test vectors were generated from GnuTLS using `gnutls-cli --insecure -d 9 `
		91  var testKeysFromTests = []testKeysFromTest{
		92  	{
		93  		VersionTLS10,
		94  		cipherSuiteByID(TLS_RSA_WITH_RC4_128_SHA),
		95  		"0302cac83ad4b1db3b9ab49ad05957de2a504a634a386fc600889321e1a971f57479466830ac3e6f468e87f5385fa0c5",
		96  		"4ae66303755184a3917fcb44880605fcc53baa01912b22ed94473fc69cebd558",
		97  		"4ae663020ec16e6bb5130be918cfcafd4d765979a3136a5d50c593446e4e44db",
		98  		"3d851bab6e5556e959a16bc36d66cfae32f672bfa9ecdef6096cbb1b23472df1da63dbbd9827606413221d149ed08ceb",
		99  		"805aaa19b3d2c0a0759a4b6c9959890e08480119",
	 100  		"2d22f9fe519c075c16448305ceee209fc24ad109",
	 101  		"d50b5771244f850cd8117a9ccafe2cf1",
	 102  		"e076e33206b30507a85c32855acd0919",
	 103  		20,
	 104  		16,
	 105  		"4d1bb6fc278c37d27aa6e2a13c2e079095d143272c2aa939da33d88c1c0cec22",
	 106  		"93fba89599b6321ae538e27c6548ceb8b46821864318f5190d64a375e5d69d41",
	 107  	},
	 108  	{
	 109  		VersionTLS10,
	 110  		cipherSuiteByID(TLS_RSA_WITH_RC4_128_SHA),
	 111  		"03023f7527316bc12cbcd69e4b9e8275d62c028f27e65c745cfcddc7ce01bd3570a111378b63848127f1c36e5f9e4890",
	 112  		"4ae66364b5ea56b20ce4e25555aed2d7e67f42788dd03f3fee4adae0459ab106",
	 113  		"4ae66363ab815cbf6a248b87d6b556184e945e9b97fbdf247858b0bdafacfa1c",
	 114  		"7d64be7c80c59b740200b4b9c26d0baaa1c5ae56705acbcf2307fe62beb4728c19392c83f20483801cce022c77645460",
	 115  		"97742ed60a0554ca13f04f97ee193177b971e3b0",
	 116  		"37068751700400e03a8477a5c7eec0813ab9e0dc",
	 117  		"207cddbc600d2a200abac6502053ee5c",
	 118  		"df3f94f6e1eacc753b815fe16055cd43",
	 119  		20,
	 120  		16,
	 121  		"2c9f8961a72b97cbe76553b5f954caf8294fc6360ef995ac1256fe9516d0ce7f",
	 122  		"274f19c10291d188857ad8878e2119f5aa437d4da556601cf1337aff23154016",
	 123  	},
	 124  	{
	 125  		VersionTLS10,
	 126  		cipherSuiteByID(TLS_RSA_WITH_RC4_128_SHA),
	 127  		"832d515f1d61eebb2be56ba0ef79879efb9b527504abb386fb4310ed5d0e3b1f220d3bb6b455033a2773e6d8bdf951d278a187482b400d45deb88a5d5a6bb7d6a7a1decc04eb9ef0642876cd4a82d374d3b6ff35f0351dc5d411104de431375355addc39bfb1f6329fb163b0bc298d658338930d07d313cd980a7e3d9196cac1",
	 128  		"4ae663b2ee389c0de147c509d8f18f5052afc4aaf9699efe8cb05ece883d3a5e",
	 129  		"4ae664d503fd4cff50cfc1fb8fc606580f87b0fcdac9554ba0e01d785bdf278e",
	 130  		"1aff2e7a2c4279d0126f57a65a77a8d9d0087cf2733366699bec27eb53d5740705a8574bb1acc2abbe90e44f0dd28d6c",
	 131  		"3c7647c93c1379a31a609542aa44e7f117a70085",
	 132  		"0d73102994be74a575a3ead8532590ca32a526d4",
	 133  		"ac7581b0b6c10d85bbd905ffbf36c65e",
	 134  		"ff07edde49682b45466bd2e39464b306",
	 135  		20,
	 136  		16,
	 137  		"678b0d43f607de35241dc7e9d1a7388a52c35033a1a0336d4d740060a6638fe2",
	 138  		"f3b4ac743f015ef21d79978297a53da3e579ee047133f38c234d829c0f907dab",
	 139  	},
	 140  }
	 141
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