blob: 5071facfc07c04667b878305cc7538650dc10c70 [file] [log] [blame]
// 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"
"reflect"
"strings"
"testing"
"time"
)
type int64Test struct {
in []byte
ok bool
out int64
}
var int64TestData = []int64Test{
int64Test{[]byte{0x00}, true, 0},
int64Test{[]byte{0x7f}, true, 127},
int64Test{[]byte{0x00, 0x80}, true, 128},
int64Test{[]byte{0x01, 0x00}, true, 256},
int64Test{[]byte{0x80}, true, -128},
int64Test{[]byte{0xff, 0x7f}, true, -129},
int64Test{[]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, true, -1},
int64Test{[]byte{0xff}, true, -1},
int64Test{[]byte{0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, true, -9223372036854775808},
int64Test{[]byte{0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 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 bitStringTest struct {
in []byte
ok bool
out []byte
bitLength int
}
var bitStringTestData = []bitStringTest{
bitStringTest{[]byte{}, false, []byte{}, 0},
bitStringTest{[]byte{0x00}, true, []byte{}, 0},
bitStringTest{[]byte{0x07, 0x00}, true, []byte{0x00}, 1},
bitStringTest{[]byte{0x07, 0x01}, false, []byte{}, 0},
bitStringTest{[]byte{0x07, 0x40}, false, []byte{}, 0},
bitStringTest{[]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.Compare(ret.Bytes, test.out) != 0 {
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")
}
}
type bitStringRightAlignTest struct {
in []byte
inlen int
out []byte
}
var bitStringRightAlignTests = []bitStringRightAlignTest{
bitStringRightAlignTest{[]byte{0x80}, 1, []byte{0x01}},
bitStringRightAlignTest{[]byte{0x80, 0x80}, 9, []byte{0x01, 0x01}},
bitStringRightAlignTest{[]byte{}, 0, []byte{}},
bitStringRightAlignTest{[]byte{0xce}, 8, []byte{0xce}},
bitStringRightAlignTest{[]byte{0xce, 0x47}, 16, []byte{0xce, 0x47}},
bitStringRightAlignTest{[]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.Compare(out, test.out) != 0 {
t.Errorf("#%d got: %x want: %x", i, out, test.out)
}
}
}
type objectIdentifierTest struct {
in []byte
ok bool
out []int
}
var objectIdentifierTestData = []objectIdentifierTest{
objectIdentifierTest{[]byte{}, false, []int{}},
objectIdentifierTest{[]byte{85}, true, []int{2, 5}},
objectIdentifierTest{[]byte{85, 0x02}, true, []int{2, 5, 2}},
objectIdentifierTest{[]byte{85, 0x02, 0xc0, 0x00}, true, []int{2, 5, 2, 0x2000}},
objectIdentifierTest{[]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)
}
}
}
}
type timeTest struct {
in string
ok bool
out *time.Time
}
var timeTestData = []timeTest{
timeTest{"910506164540-0700", true, &time.Time{1991, 05, 06, 16, 45, 40, 0, -7 * 60 * 60, ""}},
timeTest{"910506164540+0730", true, &time.Time{1991, 05, 06, 16, 45, 40, 0, 7*60*60 + 30*60, ""}},
timeTest{"910506234540Z", true, &time.Time{1991, 05, 06, 23, 45, 40, 0, 0, ""}},
timeTest{"9105062345Z", true, &time.Time{1991, 05, 06, 23, 45, 0, 0, 0, ""}},
timeTest{"a10506234540Z", false, nil},
timeTest{"91a506234540Z", false, nil},
timeTest{"9105a6234540Z", false, nil},
timeTest{"910506a34540Z", false, nil},
timeTest{"910506334a40Z", false, nil},
timeTest{"91050633444aZ", false, nil},
timeTest{"910506334461Z", false, nil},
timeTest{"910506334400Za", false, nil},
}
func TestTime(t *testing.T) {
for i, test := range timeTestData {
ret, err := parseUTCTime(strings.Bytes(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)
}
}
}
}
type tagAndLengthTest struct {
in []byte
ok bool
out tagAndLength
}
var tagAndLengthData = []tagAndLengthTest{
tagAndLengthTest{[]byte{0x80, 0x01}, true, tagAndLength{2, 0, 1, false}},
tagAndLengthTest{[]byte{0xa0, 0x01}, true, tagAndLength{2, 0, 1, true}},
tagAndLengthTest{[]byte{0x02, 0x00}, true, tagAndLength{0, 2, 0, false}},
tagAndLengthTest{[]byte{0xfe, 0x00}, true, tagAndLength{3, 30, 0, true}},
tagAndLengthTest{[]byte{0x1f, 0x01, 0x00}, true, tagAndLength{0, 1, 0, false}},
tagAndLengthTest{[]byte{0x1f, 0x81, 0x00, 0x00}, true, tagAndLength{0, 128, 0, false}},
tagAndLengthTest{[]byte{0x1f, 0x81, 0x80, 0x01, 0x00}, true, tagAndLength{0, 0x4001, 0, false}},
tagAndLengthTest{[]byte{0x00, 0x81, 0x01}, true, tagAndLength{0, 0, 1, false}},
tagAndLengthTest{[]byte{0x00, 0x82, 0x01, 0x00}, true, tagAndLength{0, 0, 256, false}},
tagAndLengthTest{[]byte{0x00, 0x83, 0x01, 0x00}, false, tagAndLength{}},
tagAndLengthTest{[]byte{0x1f, 0x85}, false, tagAndLength{}},
tagAndLengthTest{[]byte{0x30, 0x80}, 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{
parseFieldParametersTest{"", fieldParameters{false, false, nil, nil, 0}},
parseFieldParametersTest{"ia5", fieldParameters{false, false, nil, nil, tagIA5String}},
parseFieldParametersTest{"printable", fieldParameters{false, false, nil, nil, tagPrintableString}},
parseFieldParametersTest{"optional", fieldParameters{true, false, nil, nil, 0}},
parseFieldParametersTest{"explicit", fieldParameters{false, true, nil, new(int), 0}},
parseFieldParametersTest{"optional,explicit", fieldParameters{true, true, nil, new(int), 0}},
parseFieldParametersTest{"default:42", fieldParameters{false, false, newInt64(42), nil, 0}},
parseFieldParametersTest{"tag:17", fieldParameters{false, false, nil, newInt(17), 0}},
parseFieldParametersTest{"optional,explicit,default:42,tag:17", fieldParameters{true, true, newInt64(42), newInt(17), 0}},
parseFieldParametersTest{"optional,explicit,default:42,tag:17,rubbish1", fieldParameters{true, true, newInt64(42), newInt(17), 0}},
}
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 unmarshalTest struct {
in []byte
out interface{}
}
type TestObjectIdentifierStruct struct {
OID ObjectIdentifier
}
type TestContextSpecificTags struct {
A int "tag:1"
}
type TestContextSpecificTags2 struct {
A int "explicit,tag:1"
B int
}
var unmarshalTestData []unmarshalTest = []unmarshalTest{
unmarshalTest{[]byte{0x02, 0x01, 0x42}, newInt(0x42)},
unmarshalTest{[]byte{0x30, 0x08, 0x06, 0x06, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d}, &TestObjectIdentifierStruct{[]int{1, 2, 840, 113549}}},
unmarshalTest{[]byte{0x03, 0x04, 0x06, 0x6e, 0x5d, 0xc0}, &BitString{[]byte{110, 93, 192}, 18}},
unmarshalTest{[]byte{0x30, 0x09, 0x02, 0x01, 0x01, 0x02, 0x01, 0x02, 0x02, 0x01, 0x03}, &[]int{1, 2, 3}},
unmarshalTest{[]byte{0x02, 0x01, 0x10}, newInt(16)},
unmarshalTest{[]byte{0x13, 0x04, 't', 'e', 's', 't'}, newString("test")},
unmarshalTest{[]byte{0x16, 0x04, 't', 'e', 's', 't'}, newString("test")},
unmarshalTest{[]byte{0x16, 0x04, 't', 'e', 's', 't'}, &RawValue{0, 22, false, []byte{'t', 'e', 's', 't'}}},
unmarshalTest{[]byte{0x04, 0x04, 1, 2, 3, 4}, &RawValue{0, 4, false, []byte{1, 2, 3, 4}}},
unmarshalTest{[]byte{0x30, 0x03, 0x81, 0x01, 0x01}, &TestContextSpecificTags{1}},
unmarshalTest{[]byte{0x30, 0x08, 0xa1, 0x03, 0x02, 0x01, 0x01, 0x02, 0x01, 0x02}, &TestContextSpecificTags2{1, 2}},
unmarshalTest{[]byte{0x01, 0x01, 0x00}, newBool(false)},
unmarshalTest{[]byte{0x01, 0x01, 0x01}, newBool(true)},
}
func TestUnmarshal(t *testing.T) {
for i, test := range unmarshalTestData {
pv := reflect.MakeZero(reflect.NewValue(test.out).Type())
zv := reflect.MakeZero(pv.Type().(*reflect.PtrType).Elem())
pv.(*reflect.PtrValue).PointTo(zv)
val := pv.Interface()
_, err := Unmarshal(val, test.in)
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 "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 []RelativeDistinguishedName
type RelativeDistinguishedName []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(&cert, derEncodedSelfSignedCertBytes); err != nil {
t.Errorf("Unmarshal failed: %v", err)
}
if !reflect.DeepEqual(cert, derEncodedSelfSignedCert) {
t.Errorf("Bad result:\ngot: %+v\nwant: %+v\n", 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(&cert, derEncodedPaypalNULCertBytes); 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(&s, input)
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.Compare([]byte(s.Raw), input) != 0 {
t.Errorf("bad value for Raw: got %x want %x", s.Raw, input)
}
}
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}},
SignatureAlgorithm: AlgorithmIdentifier{Algorithm: ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5}},
Issuer: RDNSequence{
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 6}, Value: "XX"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 8}, Value: "Some-State"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 7}, Value: "City"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 10}, Value: "Internet Widgits Pty Ltd"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 3}, Value: "false.example.com"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{1, 2, 840, 113549, 1, 9, 1}, Value: "false@example.com"}},
},
Validity: Validity{NotBefore: &time.Time{Year: 2009, Month: 10, Day: 8, Hour: 0, Minute: 25, Second: 53, Weekday: 0, ZoneOffset: 0, Zone: ""}, NotAfter: &time.Time{Year: 2010, Month: 10, Day: 8, Hour: 0, Minute: 25, Second: 53, Weekday: 0, ZoneOffset: 0, Zone: ""}},
Subject: RDNSequence{
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 6}, Value: "XX"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 8}, Value: "Some-State"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 7}, Value: "City"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 10}, Value: "Internet Widgits Pty Ltd"}},
RelativeDistinguishedName{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 3}, Value: "false.example.com"}},
RelativeDistinguishedName{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{
0x30, 0x82, 0x02, 0x18, 0x30,
0x82, 0x01, 0xc2, 0x02, 0x09, 0x00, 0x8c, 0xc3, 0x37, 0x92, 0x10, 0xec, 0x2c,
0x98, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
0x05, 0x05, 0x00, 0x30, 0x81, 0x92, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55,
0x04, 0x06, 0x13, 0x02, 0x58, 0x58, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55,
0x04, 0x08, 0x13, 0x0a, 0x53, 0x6f, 0x6d, 0x65, 0x2d, 0x53, 0x74, 0x61, 0x74,
0x65, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x04, 0x43,
0x69, 0x74, 0x79, 0x31, 0x21, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13,
0x18, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x20, 0x57, 0x69, 0x64,
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0x33, 0x5a, 0x30, 0x81, 0x92, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04,
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0x65, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d,
0x31, 0x20, 0x30, 0x1e, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
0x09, 0x01, 0x16, 0x11, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x40, 0x65, 0x78, 0x61,
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0xf0, 0x06, 0xaa, 0x27, 0x7f, 0x6e, 0xaf, 0x42, 0x90, 0x2b, 0x59, 0x2d, 0x8c,
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}
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