// 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 asn1
import (
"bytes"
"fmt"
"math"
"math/big"
"reflect"
"strings"
"testing"
"time"
)
type boolTest struct {
in []byte
ok bool
out bool
}
var boolTestData = []boolTest{
{[]byte{0x00}, true, false},
{[]byte{0xff}, true, true},
{[]byte{0x00, 0x00}, false, false},
{[]byte{0xff, 0xff}, false, false},
{[]byte{0x01}, false, false},
}
func TestParseBool(t *testing.T) {
for i, test := range boolTestData {
ret, err := parseBool(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if test.ok && ret != test.out {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
type int64Test struct {
in []byte
ok bool
out int64
}
var int64TestData = []int64Test{
{[]byte{0x00}, true, 0},
{[]byte{0x7f}, true, 127},
{[]byte{0x00, 0x80}, true, 128},
{[]byte{0x01, 0x00}, true, 256},
{[]byte{0x80}, true, -128},
{[]byte{0xff, 0x7f}, true, -129},
{[]byte{0xff}, true, -1},
{[]byte{0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, true, -9223372036854775808},
{[]byte{0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, false, 0},
{[]byte{}, false, 0},
{[]byte{0x00, 0x7f}, false, 0},
{[]byte{0xff, 0xf0}, false, 0},
}
func TestParseInt64(t *testing.T) {
for i, test := range int64TestData {
ret, err := parseInt64(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if test.ok && ret != test.out {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
type int32Test struct {
in []byte
ok bool
out int32
}
var int32TestData = []int32Test{
{[]byte{0x00}, true, 0},
{[]byte{0x7f}, true, 127},
{[]byte{0x00, 0x80}, true, 128},
{[]byte{0x01, 0x00}, true, 256},
{[]byte{0x80}, true, -128},
{[]byte{0xff, 0x7f}, true, -129},
{[]byte{0xff}, true, -1},
{[]byte{0x80, 0x00, 0x00, 0x00}, true, -2147483648},
{[]byte{0x80, 0x00, 0x00, 0x00, 0x00}, false, 0},
{[]byte{}, false, 0},
{[]byte{0x00, 0x7f}, false, 0},
{[]byte{0xff, 0xf0}, false, 0},
}
func TestParseInt32(t *testing.T) {
for i, test := range int32TestData {
ret, err := parseInt32(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if test.ok && int32(ret) != test.out {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
var bigIntTests = []struct {
in []byte
ok bool
base10 string
}{
{[]byte{0xff}, true, "-1"},
{[]byte{0x00}, true, "0"},
{[]byte{0x01}, true, "1"},
{[]byte{0x00, 0xff}, true, "255"},
{[]byte{0xff, 0x00}, true, "-256"},
{[]byte{0x01, 0x00}, true, "256"},
{[]byte{}, false, ""},
{[]byte{0x00, 0x7f}, false, ""},
{[]byte{0xff, 0xf0}, false, ""},
}
func TestParseBigInt(t *testing.T) {
for i, test := range bigIntTests {
ret, err := parseBigInt(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if test.ok {
if ret.String() != test.base10 {
t.Errorf("#%d: bad result from %x, got %s want %s", i, test.in, ret.String(), test.base10)
}
e, err := makeBigInt(ret)
if err != nil {
t.Errorf("%d: err=%q", i, err)
continue
}
result := make([]byte, e.Len())
e.Encode(result)
if !bytes.Equal(result, test.in) {
t.Errorf("#%d: got %x from marshaling %s, want %x", i, result, ret, test.in)
}
}
}
}
type bitStringTest struct {
in []byte
ok bool
out []byte
bitLength int
}
var bitStringTestData = []bitStringTest{
{[]byte{}, false, []byte{}, 0},
{[]byte{0x00}, true, []byte{}, 0},
{[]byte{0x07, 0x00}, true, []byte{0x00}, 1},
{[]byte{0x07, 0x01}, false, []byte{}, 0},
{[]byte{0x07, 0x40}, false, []byte{}, 0},
{[]byte{0x08, 0x00}, false, []byte{}, 0},
}
func TestBitString(t *testing.T) {
for i, test := range bitStringTestData {
ret, err := parseBitString(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if err == nil {
if test.bitLength != ret.BitLength || !bytes.Equal(ret.Bytes, test.out) {
t.Errorf("#%d: Bad result: %v (expected %v %v)", i, ret, test.out, test.bitLength)
}
}
}
}
func TestBitStringAt(t *testing.T) {
bs := BitString{[]byte{0x82, 0x40}, 16}
if bs.At(0) != 1 {
t.Error("#1: Failed")
}
if bs.At(1) != 0 {
t.Error("#2: Failed")
}
if bs.At(6) != 1 {
t.Error("#3: Failed")
}
if bs.At(9) != 1 {
t.Error("#4: Failed")
}
if bs.At(-1) != 0 {
t.Error("#5: Failed")
}
if bs.At(17) != 0 {
t.Error("#6: Failed")
}
}
type bitStringRightAlignTest struct {
in []byte
inlen int
out []byte
}
var bitStringRightAlignTests = []bitStringRightAlignTest{
{[]byte{0x80}, 1, []byte{0x01}},
{[]byte{0x80, 0x80}, 9, []byte{0x01, 0x01}},
{[]byte{}, 0, []byte{}},
{[]byte{0xce}, 8, []byte{0xce}},
{[]byte{0xce, 0x47}, 16, []byte{0xce, 0x47}},
{[]byte{0x34, 0x50}, 12, []byte{0x03, 0x45}},
}
func TestBitStringRightAlign(t *testing.T) {
for i, test := range bitStringRightAlignTests {
bs := BitString{test.in, test.inlen}
out := bs.RightAlign()
if !bytes.Equal(out, test.out) {
t.Errorf("#%d got: %x want: %x", i, out, test.out)
}
}
}
type objectIdentifierTest struct {
in []byte
ok bool
out []int
}
var objectIdentifierTestData = []objectIdentifierTest{
{[]byte{}, false, []int{}},
{[]byte{85}, true, []int{2, 5}},
{[]byte{85, 0x02}, true, []int{2, 5, 2}},
{[]byte{85, 0x02, 0xc0, 0x00}, true, []int{2, 5, 2, 0x2000}},
{[]byte{0x81, 0x34, 0x03}, true, []int{2, 100, 3}},
{[]byte{85, 0x02, 0xc0, 0x80, 0x80, 0x80, 0x80}, false, []int{}},
}
func TestObjectIdentifier(t *testing.T) {
for i, test := range objectIdentifierTestData {
ret, err := parseObjectIdentifier(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if err == nil {
if !reflect.DeepEqual(test.out, ret) {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
if s := ObjectIdentifier([]int{1, 2, 3, 4}).String(); s != "1.2.3.4" {
t.Errorf("bad ObjectIdentifier.String(). Got %s, want 1.2.3.4", s)
}
}
type timeTest struct {
in string
ok bool
out time.Time
}
var utcTestData = []timeTest{
{"910506164540-0700", true, time.Date(1991, 05, 06, 16, 45, 40, 0, time.FixedZone("", -7*60*60))},
{"910506164540+0730", true, time.Date(1991, 05, 06, 16, 45, 40, 0, time.FixedZone("", 7*60*60+30*60))},
{"910506234540Z", true, time.Date(1991, 05, 06, 23, 45, 40, 0, time.UTC)},
{"9105062345Z", true, time.Date(1991, 05, 06, 23, 45, 0, 0, time.UTC)},
{"5105062345Z", true, time.Date(1951, 05, 06, 23, 45, 0, 0, time.UTC)},
{"a10506234540Z", false, time.Time{}},
{"91a506234540Z", false, time.Time{}},
{"9105a6234540Z", false, time.Time{}},
{"910506a34540Z", false, time.Time{}},
{"910506334a40Z", false, time.Time{}},
{"91050633444aZ", false, time.Time{}},
{"910506334461Z", false, time.Time{}},
{"910506334400Za", false, time.Time{}},
/* These are invalid times. However, the time package normalises times
* and they were accepted in some versions. See #11134. */
{"000100000000Z", false, time.Time{}},
{"101302030405Z", false, time.Time{}},
{"100002030405Z", false, time.Time{}},
{"100100030405Z", false, time.Time{}},
{"100132030405Z", false, time.Time{}},
{"100231030405Z", false, time.Time{}},
{"100102240405Z", false, time.Time{}},
{"100102036005Z", false, time.Time{}},
{"100102030460Z", false, time.Time{}},
{"-100102030410Z", false, time.Time{}},
{"10-0102030410Z", false, time.Time{}},
{"10-0002030410Z", false, time.Time{}},
{"1001-02030410Z", false, time.Time{}},
{"100102-030410Z", false, time.Time{}},
{"10010203-0410Z", false, time.Time{}},
{"1001020304-10Z", false, time.Time{}},
}
func TestUTCTime(t *testing.T) {
for i, test := range utcTestData {
ret, err := parseUTCTime([]byte(test.in))
if err != nil {
if test.ok {
t.Errorf("#%d: parseUTCTime(%q) = error %v", i, test.in, err)
}
continue
}
if !test.ok {
t.Errorf("#%d: parseUTCTime(%q) succeeded, should have failed", i, test.in)
continue
}
const format = "Jan _2 15:04:05 -0700 2006" // ignore zone name, just offset
have := ret.Format(format)
want := test.out.Format(format)
if have != want {
t.Errorf("#%d: parseUTCTime(%q) = %s, want %s", i, test.in, have, want)
}
}
}
var generalizedTimeTestData = []timeTest{
{"20100102030405Z", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.UTC)},
{"20100102030405", false, time.Time{}},
{"20100102030405+0607", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.FixedZone("", 6*60*60+7*60))},
{"20100102030405-0607", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.FixedZone("", -6*60*60-7*60))},
/* These are invalid times. However, the time package normalises times
* and they were accepted in some versions. See #11134. */
{"00000100000000Z", false, time.Time{}},
{"20101302030405Z", false, time.Time{}},
{"20100002030405Z", false, time.Time{}},
{"20100100030405Z", false, time.Time{}},
{"20100132030405Z", false, time.Time{}},
{"20100231030405Z", false, time.Time{}},
{"20100102240405Z", false, time.Time{}},
{"20100102036005Z", false, time.Time{}},
{"20100102030460Z", false, time.Time{}},
{"-20100102030410Z", false, time.Time{}},
{"2010-0102030410Z", false, time.Time{}},
{"2010-0002030410Z", false, time.Time{}},
{"201001-02030410Z", false, time.Time{}},
{"20100102-030410Z", false, time.Time{}},
{"2010010203-0410Z", false, time.Time{}},
{"201001020304-10Z", false, time.Time{}},
}
func TestGeneralizedTime(t *testing.T) {
for i, test := range generalizedTimeTestData {
ret, err := parseGeneralizedTime([]byte(test.in))
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if err == nil {
if !reflect.DeepEqual(test.out, ret) {
t.Errorf("#%d: Bad result: %q → %v (expected %v)", i, test.in, ret, test.out)
}
}
}
}
type tagAndLengthTest struct {
in []byte
ok bool
out tagAndLength
}
var tagAndLengthData = []tagAndLengthTest{
{[]byte{0x80, 0x01}, true, tagAndLength{2, 0, 1, false}},
{[]byte{0xa0, 0x01}, true, tagAndLength{2, 0, 1, true}},
{[]byte{0x02, 0x00}, true, tagAndLength{0, 2, 0, false}},
{[]byte{0xfe, 0x00}, true, tagAndLength{3, 30, 0, true}},
{[]byte{0x1f, 0x1f, 0x00}, true, tagAndLength{0, 31, 0, false}},
{[]byte{0x1f, 0x81, 0x00, 0x00}, true, tagAndLength{0, 128, 0, false}},
{[]byte{0x1f, 0x81, 0x80, 0x01, 0x00}, true, tagAndLength{0, 0x4001, 0, false}},
{[]byte{0x00, 0x81, 0x80}, true, tagAndLength{0, 0, 128, false}},
{[]byte{0x00, 0x82, 0x01, 0x00}, true, tagAndLength{0, 0, 256, false}},
{[]byte{0x00, 0x83, 0x01, 0x00}, false, tagAndLength{}},
{[]byte{0x1f, 0x85}, false, tagAndLength{}},
{[]byte{0x30, 0x80}, false, tagAndLength{}},
// Superfluous zeros in the length should be an error.
{[]byte{0xa0, 0x82, 0x00, 0xff}, false, tagAndLength{}},
// Lengths up to the maximum size of an int should work.
{[]byte{0xa0, 0x84, 0x7f, 0xff, 0xff, 0xff}, true, tagAndLength{2, 0, 0x7fffffff, true}},
// Lengths that would overflow an int should be rejected.
{[]byte{0xa0, 0x84, 0x80, 0x00, 0x00, 0x00}, false, tagAndLength{}},
// Long length form may not be used for lengths that fit in short form.
{[]byte{0xa0, 0x81, 0x7f}, false, tagAndLength{}},
// Tag numbers which would overflow int32 are rejected. (The value below is 2^31.)
{[]byte{0x1f, 0x88, 0x80, 0x80, 0x80, 0x00, 0x00}, false, tagAndLength{}},
// Tag numbers that fit in an int32 are valid. (The value below is 2^31 - 1.)
{[]byte{0x1f, 0x87, 0xFF, 0xFF, 0xFF, 0x7F, 0x00}, true, tagAndLength{tag: math.MaxInt32}},
// Long tag number form may not be used for tags that fit in short form.
{[]byte{0x1f, 0x1e, 0x00}, false, tagAndLength{}},
}
func TestParseTagAndLength(t *testing.T) {
for i, test := range tagAndLengthData {
tagAndLength, _, err := parseTagAndLength(test.in, 0)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did pass? %v, expected: %v)", i, err == nil, test.ok)
}
if err == nil && !reflect.DeepEqual(test.out, tagAndLength) {
t.Errorf("#%d: Bad result: %v (expected %v)", i, tagAndLength, test.out)
}
}
}
type parseFieldParametersTest struct {
in string
out fieldParameters
}
func newInt(n int) *int { return &n }
func newInt64(n int64) *int64 { return &n }
func newString(s string) *string { return &s }
func newBool(b bool) *bool { return &b }
var parseFieldParametersTestData []parseFieldParametersTest = []parseFieldParametersTest{
{"", fieldParameters{}},
{"ia5", fieldParameters{stringType: TagIA5String}},
{"generalized", fieldParameters{timeType: TagGeneralizedTime}},
{"utc", fieldParameters{timeType: TagUTCTime}},
{"printable", fieldParameters{stringType: TagPrintableString}},
{"numeric", fieldParameters{stringType: TagNumericString}},
{"optional", fieldParameters{optional: true}},
{"explicit", fieldParameters{explicit: true, tag: new(int)}},
{"application", fieldParameters{application: true, tag: new(int)}},
{"optional,explicit", fieldParameters{optional: true, explicit: true, tag: new(int)}},
{"default:42", fieldParameters{defaultValue: newInt64(42)}},
{"tag:17", fieldParameters{tag: newInt(17)}},
{"optional,explicit,default:42,tag:17", fieldParameters{optional: true, explicit: true, defaultValue: newInt64(42), tag: newInt(17)}},
{"optional,explicit,default:42,tag:17,rubbish1", fieldParameters{true, true, false, newInt64(42), newInt(17), 0, 0, false, false}},
{"set", fieldParameters{set: true}},
}
func TestParseFieldParameters(t *testing.T) {
for i, test := range parseFieldParametersTestData {
f := parseFieldParameters(test.in)
if !reflect.DeepEqual(f, test.out) {
t.Errorf("#%d: Bad result: %v (expected %v)", i, f, test.out)
}
}
}
type TestObjectIdentifierStruct struct {
OID ObjectIdentifier
}
type TestContextSpecificTags struct {
A int `asn1:"tag:1"`
}
type TestContextSpecificTags2 struct {
A int `asn1:"explicit,tag:1"`
B int
}
type TestContextSpecificTags3 struct {
S string `asn1:"tag:1,utf8"`
}
type TestElementsAfterString struct {
S string
A, B int
}
type TestBigInt struct {
X *big.Int
}
type TestSet struct {
Ints []int `asn1:"set"`
}
var unmarshalTestData = []struct {
in []byte
out interface{}
}{
{[]byte{0x02, 0x01, 0x42}, newInt(0x42)},
{[]byte{0x05, 0x00}, &RawValue{0, 5, false, []byte{}, []byte{0x05, 0x00}}},
{[]byte{0x30, 0x08, 0x06, 0x06, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d}, &TestObjectIdentifierStruct{[]int{1, 2, 840, 113549}}},
{[]byte{0x03, 0x04, 0x06, 0x6e, 0x5d, 0xc0}, &BitString{[]byte{110, 93, 192}, 18}},
{[]byte{0x30, 0x09, 0x02, 0x01, 0x01, 0x02, 0x01, 0x02, 0x02, 0x01, 0x03}, &[]int{1, 2, 3}},
{[]byte{0x02, 0x01, 0x10}, newInt(16)},
{[]byte{0x13, 0x04, 't', 'e', 's', 't'}, newString("test")},
{[]byte{0x16, 0x04, 't', 'e', 's', 't'}, newString("test")},
// Ampersand is allowed in PrintableString due to mistakes by major CAs.
{[]byte{0x13, 0x05, 't', 'e', 's', 't', '&'}, newString("test&")},
{[]byte{0x16, 0x04, 't', 'e', 's', 't'}, &RawValue{0, 22, false, []byte("test"), []byte("\x16\x04test")}},
{[]byte{0x04, 0x04, 1, 2, 3, 4}, &RawValue{0, 4, false, []byte{1, 2, 3, 4}, []byte{4, 4, 1, 2, 3, 4}}},
{[]byte{0x30, 0x03, 0x81, 0x01, 0x01}, &TestContextSpecificTags{1}},
{[]byte{0x30, 0x08, 0xa1, 0x03, 0x02, 0x01, 0x01, 0x02, 0x01, 0x02}, &TestContextSpecificTags2{1, 2}},
{[]byte{0x30, 0x03, 0x81, 0x01, '@'}, &TestContextSpecificTags3{"@"}},
{[]byte{0x01, 0x01, 0x00}, newBool(false)},
{[]byte{0x01, 0x01, 0xff}, newBool(true)},
{[]byte{0x30, 0x0b, 0x13, 0x03, 0x66, 0x6f, 0x6f, 0x02, 0x01, 0x22, 0x02, 0x01, 0x33}, &TestElementsAfterString{"foo", 0x22, 0x33}},
{[]byte{0x30, 0x05, 0x02, 0x03, 0x12, 0x34, 0x56}, &TestBigInt{big.NewInt(0x123456)}},
{[]byte{0x30, 0x0b, 0x31, 0x09, 0x02, 0x01, 0x01, 0x02, 0x01, 0x02, 0x02, 0x01, 0x03}, &TestSet{Ints: []int{1, 2, 3}}},
{[]byte{0x12, 0x0b, '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ' '}, newString("0123456789 ")},
}
func TestUnmarshal(t *testing.T) {
for i, test := range unmarshalTestData {
pv := reflect.New(reflect.TypeOf(test.out).Elem())
val := pv.Interface()
_, err := Unmarshal(test.in, val)
if err != nil {
t.Errorf("Unmarshal failed at index %d %v", i, err)
}
if !reflect.DeepEqual(val, test.out) {
t.Errorf("#%d:\nhave %#v\nwant %#v", i, val, test.out)
}
}
}
type Certificate struct {
TBSCertificate TBSCertificate
SignatureAlgorithm AlgorithmIdentifier
SignatureValue BitString
}
type TBSCertificate struct {
Version int `asn1:"optional,explicit,default:0,tag:0"`
SerialNumber RawValue
SignatureAlgorithm AlgorithmIdentifier
Issuer RDNSequence
Validity Validity
Subject RDNSequence
PublicKey PublicKeyInfo
}
type AlgorithmIdentifier struct {
Algorithm ObjectIdentifier
}
type RDNSequence []RelativeDistinguishedNameSET
type RelativeDistinguishedNameSET []AttributeTypeAndValue
type AttributeTypeAndValue struct {
Type ObjectIdentifier
Value interface{}
}
type Validity struct {
NotBefore, NotAfter time.Time
}
type PublicKeyInfo struct {
Algorithm AlgorithmIdentifier
PublicKey BitString
}
func TestCertificate(t *testing.T) {
// This is a minimal, self-signed certificate that should parse correctly.
var cert Certificate
if _, err := Unmarshal(derEncodedSelfSignedCertBytes, &cert); err != nil {
t.Errorf("Unmarshal failed: %v", err)
}
if !reflect.DeepEqual(cert, derEncodedSelfSignedCert) {
t.Errorf("Bad result:\ngot: %+v\nwant: %+v", cert, derEncodedSelfSignedCert)
}
}
func TestCertificateWithNUL(t *testing.T) {
// This is the paypal NUL-hack certificate. It should fail to parse because
// NUL isn't a permitted character in a PrintableString.
var cert Certificate
if _, err := Unmarshal(derEncodedPaypalNULCertBytes, &cert); err == nil {
t.Error("Unmarshal succeeded, should not have")
}
}
type rawStructTest struct {
Raw RawContent
A int
}
func TestRawStructs(t *testing.T) {
var s rawStructTest
input := []byte{0x30, 0x03, 0x02, 0x01, 0x50}
rest, err := Unmarshal(input, &s)
if len(rest) != 0 {
t.Errorf("incomplete parse: %x", rest)
return
}
if err != nil {
t.Error(err)
return
}
if s.A != 0x50 {
t.Errorf("bad value for A: got %d want %d", s.A, 0x50)
}
if !bytes.Equal([]byte(s.Raw), input) {
t.Errorf("bad value for Raw: got %x want %x", s.Raw, input)
}
}
type oiEqualTest struct {
first ObjectIdentifier
second ObjectIdentifier
same bool
}
var oiEqualTests = []oiEqualTest{
{
ObjectIdentifier{1, 2, 3},
ObjectIdentifier{1, 2, 3},
true,
},
{
ObjectIdentifier{1},
ObjectIdentifier{1, 2, 3},
false,
},
{
ObjectIdentifier{1, 2, 3},
ObjectIdentifier{10, 11, 12},
false,
},
}
func TestObjectIdentifierEqual(t *testing.T) {
for _, o := range oiEqualTests {
if s := o.first.Equal(o.second); s != o.same {
t.Errorf("ObjectIdentifier.Equal: got: %t want: %t", s, o.same)
}
}
}
var derEncodedSelfSignedCert = Certificate{
TBSCertificate: TBSCertificate{
Version: 0,
SerialNumber: RawValue{Class: 0, Tag: 2, IsCompound: false, Bytes: []uint8{0x0, 0x8c, 0xc3, 0x37, 0x92, 0x10, 0xec, 0x2c, 0x98}, FullBytes: []byte{2, 9, 0x0, 0x8c, 0xc3, 0x37, 0x92, 0x10, 0xec, 0x2c, 0x98}},
SignatureAlgorithm: AlgorithmIdentifier{Algorithm: ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5}},
Issuer: RDNSequence{
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 6}, Value: "XX"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 8}, Value: "Some-State"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 7}, Value: "City"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 10}, Value: "Internet Widgits Pty Ltd"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 3}, Value: "false.example.com"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{1, 2, 840, 113549, 1, 9, 1}, Value: "false@example.com"}},
},
Validity: Validity{
NotBefore: time.Date(2009, 10, 8, 00, 25, 53, 0, time.UTC),
NotAfter: time.Date(2010, 10, 8, 00, 25, 53, 0, time.UTC),
},
Subject: RDNSequence{
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 6}, Value: "XX"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 8}, Value: "Some-State"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 7}, Value: "City"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 10}, Value: "Internet Widgits Pty Ltd"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 3}, Value: "false.example.com"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{1, 2, 840, 113549, 1, 9, 1}, Value: "false@example.com"}},
},
PublicKey: PublicKeyInfo{
Algorithm: AlgorithmIdentifier{Algorithm: ObjectIdentifier{1, 2, 840, 113549, 1, 1, 1}},
PublicKey: BitString{
Bytes: []uint8{
0x30, 0x48, 0x2, 0x41, 0x0, 0xcd, 0xb7,
0x63, 0x9c, 0x32, 0x78, 0xf0, 0x6, 0xaa, 0x27, 0x7f, 0x6e, 0xaf, 0x42,
0x90, 0x2b, 0x59, 0x2d, 0x8c, 0xbc, 0xbe, 0x38, 0xa1, 0xc9, 0x2b, 0xa4,
0x69, 0x5a, 0x33, 0x1b, 0x1d, 0xea, 0xde, 0xad, 0xd8, 0xe9, 0xa5, 0xc2,
0x7e, 0x8c, 0x4c, 0x2f, 0xd0, 0xa8, 0x88, 0x96, 0x57, 0x72, 0x2a, 0x4f,
0x2a, 0xf7, 0x58, 0x9c, 0xf2, 0xc7, 0x70, 0x45, 0xdc, 0x8f, 0xde, 0xec,
0x35, 0x7d, 0x2, 0x3, 0x1, 0x0, 0x1,
},
BitLength: 592,
},
},
},
SignatureAlgorithm: AlgorithmIdentifier{Algorithm: ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5}},
SignatureValue: BitString{
Bytes: []uint8{
0xa6, 0x7b, 0x6, 0xec, 0x5e, 0xce,
0x92, 0x77, 0x2c, 0xa4, 0x13, 0xcb, 0xa3, 0xca, 0x12, 0x56, 0x8f, 0xdc, 0x6c,
0x7b, 0x45, 0x11, 0xcd, 0x40, 0xa7, 0xf6, 0x59, 0x98, 0x4, 0x2, 0xdf, 0x2b,
0x99, 0x8b, 0xb9, 0xa4, 0xa8, 0xcb, 0xeb, 0x34, 0xc0, 0xf0, 0xa7, 0x8c, 0xf8,
0xd9, 0x1e, 0xde, 0x14, 0xa5, 0xed, 0x76, 0xbf, 0x11, 0x6f, 0xe3, 0x60, 0xaa,
0xfa, 0x88, 0x21, 0x49, 0x4, 0x35,
},
BitLength: 512,
},
}
var derEncodedSelfSignedCertBytes = []byte{
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0x04, 0x35,
}
var derEncodedPaypalNULCertBytes = []byte{
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}
var stringSliceTestData = [][]string{
{"foo", "bar"},
{"foo", "\\bar"},
{"foo", "\"bar\""},
{"foo", "åäö"},
}
func TestStringSlice(t *testing.T) {
for _, test := range stringSliceTestData {
bs, err := Marshal(test)
if err != nil {
t.Error(err)
}
var res []string
_, err = Unmarshal(bs, &res)
if err != nil {
t.Error(err)
}
if fmt.Sprintf("%v", res) != fmt.Sprintf("%v", test) {
t.Errorf("incorrect marshal/unmarshal; %v != %v", res, test)
}
}
}
type explicitTaggedTimeTest struct {
Time time.Time `asn1:"explicit,tag:0"`
}
var explicitTaggedTimeTestData = []struct {
in []byte
out explicitTaggedTimeTest
}{
{[]byte{0x30, 0x11, 0xa0, 0xf, 0x17, 0xd, '9', '1', '0', '5', '0', '6', '1', '6', '4', '5', '4', '0', 'Z'},
explicitTaggedTimeTest{time.Date(1991, 05, 06, 16, 45, 40, 0, time.UTC)}},
{[]byte{0x30, 0x17, 0xa0, 0xf, 0x18, 0x13, '2', '0', '1', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '+', '0', '6', '0', '7'},
explicitTaggedTimeTest{time.Date(2010, 01, 02, 03, 04, 05, 0, time.FixedZone("", 6*60*60+7*60))}},
}
func TestExplicitTaggedTime(t *testing.T) {
// Test that a time.Time will match either tagUTCTime or
// tagGeneralizedTime.
for i, test := range explicitTaggedTimeTestData {
var got explicitTaggedTimeTest
_, err := Unmarshal(test.in, &got)
if err != nil {
t.Errorf("Unmarshal failed at index %d %v", i, err)
}
if !got.Time.Equal(test.out.Time) {
t.Errorf("#%d: got %v, want %v", i, got.Time, test.out.Time)
}
}
}
type implicitTaggedTimeTest struct {
Time time.Time `asn1:"tag:24"`
}
func TestImplicitTaggedTime(t *testing.T) {
// An implicitly tagged time value, that happens to have an implicit
// tag equal to a GENERALIZEDTIME, should still be parsed as a UTCTime.
// (There's no "timeType" in fieldParameters to determine what type of
// time should be expected when implicitly tagged.)
der := []byte{0x30, 0x0f, 0x80 | 24, 0xd, '9', '1', '0', '5', '0', '6', '1', '6', '4', '5', '4', '0', 'Z'}
var result implicitTaggedTimeTest
if _, err := Unmarshal(der, &result); err != nil {
t.Fatalf("Error while parsing: %s", err)
}
if expected := time.Date(1991, 05, 06, 16, 45, 40, 0, time.UTC); !result.Time.Equal(expected) {
t.Errorf("Wrong result. Got %v, want %v", result.Time, expected)
}
}
type truncatedExplicitTagTest struct {
Test int `asn1:"explicit,tag:0"`
}
func TestTruncatedExplicitTag(t *testing.T) {
// This crashed Unmarshal in the past. See #11154.
der := []byte{
0x30, // SEQUENCE
0x02, // two bytes long
0xa0, // context-specific, tag 0
0x30, // 48 bytes long
}
var result truncatedExplicitTagTest
if _, err := Unmarshal(der, &result); err == nil {
t.Error("Unmarshal returned without error")
}
}
type invalidUTF8Test struct {
Str string `asn1:"utf8"`
}
func TestUnmarshalInvalidUTF8(t *testing.T) {
data := []byte("0\x05\f\x03a\xc9c")
var result invalidUTF8Test
_, err := Unmarshal(data, &result)
const expectedSubstring = "UTF"
if err == nil {
t.Fatal("Successfully unmarshaled invalid UTF-8 data")
} else if !strings.Contains(err.Error(), expectedSubstring) {
t.Fatalf("Expected error to mention %q but error was %q", expectedSubstring, err.Error())
}
}
func TestMarshalNilValue(t *testing.T) {
nilValueTestData := []interface{}{
nil,
struct{ V interface{} }{},
}
for i, test := range nilValueTestData {
if _, err := Marshal(test); err == nil {
t.Fatalf("#%d: successfully marshaled nil value", i)
}
}
}
type unexported struct {
X int
y int
}
type exported struct {
X int
Y int
}
func TestUnexportedStructField(t *testing.T) {
want := StructuralError{"struct contains unexported fields"}
_, err := Marshal(unexported{X: 5, y: 1})
if err != want {
t.Errorf("got %v, want %v", err, want)
}
bs, err := Marshal(exported{X: 5, Y: 1})
if err != nil {
t.Fatal(err)
}
var u unexported
_, err = Unmarshal(bs, &u)
if err != want {
t.Errorf("got %v, want %v", err, want)
}
}
func TestNull(t *testing.T) {
marshaled, err := Marshal(NullRawValue)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(NullBytes, marshaled) {
t.Errorf("Expected Marshal of NullRawValue to yield %x, got %x", NullBytes, marshaled)
}
unmarshaled := RawValue{}
if _, err := Unmarshal(NullBytes, &unmarshaled); err != nil {
t.Fatal(err)
}
unmarshaled.FullBytes = NullRawValue.FullBytes
if len(unmarshaled.Bytes) == 0 {
// DeepEqual considers a nil slice and an empty slice to be different.
unmarshaled.Bytes = NullRawValue.Bytes
}
if !reflect.DeepEqual(NullRawValue, unmarshaled) {
t.Errorf("Expected Unmarshal of NullBytes to yield %v, got %v", NullRawValue, unmarshaled)
}
}
func TestExplicitTagRawValueStruct(t *testing.T) {
type foo struct {
A RawValue `asn1:"optional,explicit,tag:5"`
B []byte `asn1:"optional,explicit,tag:6"`
}
before := foo{B: []byte{1, 2, 3}}
derBytes, err := Marshal(before)
if err != nil {
t.Fatal(err)
}
var after foo
if rest, err := Unmarshal(derBytes, &after); err != nil || len(rest) != 0 {
t.Fatal(err)
}
got := fmt.Sprintf("%#v", after)
want := fmt.Sprintf("%#v", before)
if got != want {
t.Errorf("got %s, want %s (DER: %x)", got, want, derBytes)
}
}
func TestTaggedRawValue(t *testing.T) {
type taggedRawValue struct {
A RawValue `asn1:"tag:5"`
}
type untaggedRawValue struct {
A RawValue
}
const isCompound = 0x20
const tag = 5
tests := []struct {
shouldMatch bool
derBytes []byte
}{
{false, []byte{0x30, 3, TagInteger, 1, 1}},
{true, []byte{0x30, 3, (ClassContextSpecific << 6) | tag, 1, 1}},
{true, []byte{0x30, 3, (ClassContextSpecific << 6) | tag | isCompound, 1, 1}},
{false, []byte{0x30, 3, (ClassApplication << 6) | tag | isCompound, 1, 1}},
}
for i, test := range tests {
var tagged taggedRawValue
if _, err := Unmarshal(test.derBytes, &tagged); (err == nil) != test.shouldMatch {
t.Errorf("#%d: unexpected result parsing %x: %s", i, test.derBytes, err)
}
// An untagged RawValue should accept anything.
var untagged untaggedRawValue
if _, err := Unmarshal(test.derBytes, &untagged); err != nil {
t.Errorf("#%d: unexpected failure parsing %x with untagged RawValue: %s", i, test.derBytes, err)
}
}
}