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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package tls
import (
"encoding/hex"
"testing"
)
type testSplitPreMasterSecretTest struct {
in, out1, out2 string
}
var testSplitPreMasterSecretTests = []testSplitPreMasterSecretTest{
{"", "", ""},
{"00", "00", "00"},
{"0011", "00", "11"},
{"001122", "0011", "1122"},
{"00112233", "0011", "2233"},
}
func TestSplitPreMasterSecret(t *testing.T) {
for i, test := range testSplitPreMasterSecretTests {
in, _ := hex.DecodeString(test.in)
out1, out2 := splitPreMasterSecret(in)
s1 := hex.EncodeToString(out1)
s2 := hex.EncodeToString(out2)
if s1 != test.out1 || s2 != test.out2 {
t.Errorf("#%d: got: (%s, %s) want: (%s, %s)", i, s1, s2, test.out1, test.out2)
}
}
}
type testKeysFromTest struct {
version uint16
suite *cipherSuite
preMasterSecret string
clientRandom, serverRandom string
masterSecret string
clientMAC, serverMAC string
clientKey, serverKey string
macLen, keyLen int
contextKeyingMaterial, noContextKeyingMaterial string
}
func TestKeysFromPreMasterSecret(t *testing.T) {
for i, test := range testKeysFromTests {
in, _ := hex.DecodeString(test.preMasterSecret)
clientRandom, _ := hex.DecodeString(test.clientRandom)
serverRandom, _ := hex.DecodeString(test.serverRandom)
masterSecret := masterFromPreMasterSecret(test.version, test.suite, in, clientRandom, serverRandom)
if s := hex.EncodeToString(masterSecret); s != test.masterSecret {
t.Errorf("#%d: bad master secret %s, want %s", i, s, test.masterSecret)
continue
}
clientMAC, serverMAC, clientKey, serverKey, _, _ := keysFromMasterSecret(test.version, test.suite, masterSecret, clientRandom, serverRandom, test.macLen, test.keyLen, 0)
clientMACString := hex.EncodeToString(clientMAC)
serverMACString := hex.EncodeToString(serverMAC)
clientKeyString := hex.EncodeToString(clientKey)
serverKeyString := hex.EncodeToString(serverKey)
if clientMACString != test.clientMAC ||
serverMACString != test.serverMAC ||
clientKeyString != test.clientKey ||
serverKeyString != test.serverKey {
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)
}
ekm := ekmFromMasterSecret(test.version, test.suite, masterSecret, clientRandom, serverRandom)
contextKeyingMaterial, err := ekm("label", []byte("context"), 32)
if err != nil {
t.Fatalf("ekmFromMasterSecret failed: %v", err)
}
noContextKeyingMaterial, err := ekm("label", nil, 32)
if err != nil {
t.Fatalf("ekmFromMasterSecret failed: %v", err)
}
if hex.EncodeToString(contextKeyingMaterial) != test.contextKeyingMaterial ||
hex.EncodeToString(noContextKeyingMaterial) != test.noContextKeyingMaterial {
t.Errorf("#%d: got keying material: (%s, %s) want: (%s, %s)", i, contextKeyingMaterial, noContextKeyingMaterial, test.contextKeyingMaterial, test.noContextKeyingMaterial)
}
}
}
// These test vectors were generated from GnuTLS using `gnutls-cli --insecure -d 9 `
var testKeysFromTests = []testKeysFromTest{
{
VersionTLS10,
cipherSuiteByID(TLS_RSA_WITH_RC4_128_SHA),
"0302cac83ad4b1db3b9ab49ad05957de2a504a634a386fc600889321e1a971f57479466830ac3e6f468e87f5385fa0c5",
"4ae66303755184a3917fcb44880605fcc53baa01912b22ed94473fc69cebd558",
"4ae663020ec16e6bb5130be918cfcafd4d765979a3136a5d50c593446e4e44db",
"3d851bab6e5556e959a16bc36d66cfae32f672bfa9ecdef6096cbb1b23472df1da63dbbd9827606413221d149ed08ceb",
"805aaa19b3d2c0a0759a4b6c9959890e08480119",
"2d22f9fe519c075c16448305ceee209fc24ad109",
"d50b5771244f850cd8117a9ccafe2cf1",
"e076e33206b30507a85c32855acd0919",
20,
16,
"4d1bb6fc278c37d27aa6e2a13c2e079095d143272c2aa939da33d88c1c0cec22",
"93fba89599b6321ae538e27c6548ceb8b46821864318f5190d64a375e5d69d41",
},
{
VersionTLS10,
cipherSuiteByID(TLS_RSA_WITH_RC4_128_SHA),
"03023f7527316bc12cbcd69e4b9e8275d62c028f27e65c745cfcddc7ce01bd3570a111378b63848127f1c36e5f9e4890",
"4ae66364b5ea56b20ce4e25555aed2d7e67f42788dd03f3fee4adae0459ab106",
"4ae66363ab815cbf6a248b87d6b556184e945e9b97fbdf247858b0bdafacfa1c",
"7d64be7c80c59b740200b4b9c26d0baaa1c5ae56705acbcf2307fe62beb4728c19392c83f20483801cce022c77645460",
"97742ed60a0554ca13f04f97ee193177b971e3b0",
"37068751700400e03a8477a5c7eec0813ab9e0dc",
"207cddbc600d2a200abac6502053ee5c",
"df3f94f6e1eacc753b815fe16055cd43",
20,
16,
"2c9f8961a72b97cbe76553b5f954caf8294fc6360ef995ac1256fe9516d0ce7f",
"274f19c10291d188857ad8878e2119f5aa437d4da556601cf1337aff23154016",
},
{
VersionTLS10,
cipherSuiteByID(TLS_RSA_WITH_RC4_128_SHA),
"832d515f1d61eebb2be56ba0ef79879efb9b527504abb386fb4310ed5d0e3b1f220d3bb6b455033a2773e6d8bdf951d278a187482b400d45deb88a5d5a6bb7d6a7a1decc04eb9ef0642876cd4a82d374d3b6ff35f0351dc5d411104de431375355addc39bfb1f6329fb163b0bc298d658338930d07d313cd980a7e3d9196cac1",
"4ae663b2ee389c0de147c509d8f18f5052afc4aaf9699efe8cb05ece883d3a5e",
"4ae664d503fd4cff50cfc1fb8fc606580f87b0fcdac9554ba0e01d785bdf278e",
"1aff2e7a2c4279d0126f57a65a77a8d9d0087cf2733366699bec27eb53d5740705a8574bb1acc2abbe90e44f0dd28d6c",
"3c7647c93c1379a31a609542aa44e7f117a70085",
"0d73102994be74a575a3ead8532590ca32a526d4",
"ac7581b0b6c10d85bbd905ffbf36c65e",
"ff07edde49682b45466bd2e39464b306",
20,
16,
"678b0d43f607de35241dc7e9d1a7388a52c35033a1a0336d4d740060a6638fe2",
"f3b4ac743f015ef21d79978297a53da3e579ee047133f38c234d829c0f907dab",
},
}