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assertion_test.go
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assertion_test.go
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/*
Copyright 2019-present Faye Amacker.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package webauthn
import (
"bytes"
"encoding/json"
"reflect"
"strings"
"testing"
)
var (
// Test data from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertion1 = `{
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
assertion1Id = "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb"
assertion1Sig = "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7"
assertion1Challenge = "eaTyUNnyPDDdK8SNEgTEUvz1Q8dylkjjTimYd5X7QAo-F8_Z1lsJi3BilUpFZHkICNDWY8r9ivnTgW7-XZC3qQ"
assertion1RPIDHash = []byte{
0x49, 0x96, 0x0d, 0xe5, 0x88, 0x0e, 0x8c, 0x68, 0x74, 0x34, 0x17, 0x0f, 0x64, 0x76, 0x60, 0x5b,
0x8f, 0xe4, 0xae, 0xb9, 0xa2, 0x86, 0x32, 0xc7, 0x99, 0x5c, 0xf3, 0xba, 0x83, 0x1d, 0x97, 0x63}
// Test data from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertion2 = `{
"id": "AwVUFfSwuMV1DRHfYmNry1IUGW03wEw9aTAR7kJM1nw",
"rawId": "AwVUFfSwuMV1DRHfYmNry1IUGW03wEw9aTAR7kJM1nw",
"response": {
"clientDataJSON": "ew0KCSJ0eXBlIiA6ICJ3ZWJhdXRobi5nZXQiLA0KCSJjaGFsbGVuZ2UiIDogIm03WlUwWi1fSWl3dmlGbkYxSlhlSmpGaFZCaW5jVzY5RTFDdGo4QVEtWWJiMXVjNDFiTUh0SXRnNkpBQ2gxc09qX1pYam9udzJhY2pfSkQyaS1heEVRIiwNCgkib3JpZ2luIiA6ICJodHRwczovL3dlYmF1dGhuLm9yZyIsDQoJInRva2VuQmluZGluZyIgOiANCgl7DQoJCSJzdGF0dXMiIDogInN1cHBvcnRlZCINCgl9DQp9",
"authenticatorData": "lWkIjx7O4yMpVANdvRDXyuORMFonUbVZu4_Xy7IpvdQFAAAAAQ",
"signature": "ElyXBPkS6ps0aod8pSEwdbaeG04SUSoucEHaulPrK3eBk3R4aePjTB-SjiPbya5rxzbuUIYO0UnqkpZrb19ZywWqwQ7qVxZzxSq7BCZmJhcML7j54eK_2nszVwXXVgO7WxpBcy_JQMxjwjXw6wNAxmnJ-H3TJJO82x4-9pDkno-GjUH2ObYk9NtkgylyMcENUaPYqajSLX-q5k14T2g839UC3xzsg71xHXQSeHgzPt6f3TXpNxNNcBYJAMm8-exKsoMkxHPDLkzK1wd5giietdoT25XQ72i8fjSSL8eiS1gllEjwbqLJn5zMQbWlgpSzJy3lK634sdeZtmMpXbRtMA",
"userHandle": "YWs"
},
"type": "public-key"
}`
assertion2Id = "AwVUFfSwuMV1DRHfYmNry1IUGW03wEw9aTAR7kJM1nw"
assertion2Sig = "ElyXBPkS6ps0aod8pSEwdbaeG04SUSoucEHaulPrK3eBk3R4aePjTB-SjiPbya5rxzbuUIYO0UnqkpZrb19ZywWqwQ7qVxZzxSq7BCZmJhcML7j54eK_2nszVwXXVgO7WxpBcy_JQMxjwjXw6wNAxmnJ-H3TJJO82x4-9pDkno-GjUH2ObYk9NtkgylyMcENUaPYqajSLX-q5k14T2g839UC3xzsg71xHXQSeHgzPt6f3TXpNxNNcBYJAMm8-exKsoMkxHPDLkzK1wd5giietdoT25XQ72i8fjSSL8eiS1gllEjwbqLJn5zMQbWlgpSzJy3lK634sdeZtmMpXbRtMA"
assertion2Challenge = "m7ZU0Z-_IiwviFnF1JXeJjFhVBincW69E1Ctj8AQ-Ybb1uc41bMHtItg6JACh1sOj_ZXjonw2acj_JD2i-axEQ"
assertion2RPIDHash = []byte{
0x95, 0x69, 0x08, 0x8f, 0x1e, 0xce, 0xe3, 0x23, 0x29, 0x54, 0x03, 0x5d, 0xbd, 0x10, 0xd7, 0xca,
0xe3, 0x91, 0x30, 0x5a, 0x27, 0x51, 0xb5, 0x59, 0xbb, 0x8f, 0xd7, 0xcb, 0xb2, 0x29, 0xbd, 0xd4}
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionMissingIDAndRawID = `{
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionMissingClientData = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionMissingAuthenticatorData = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionMissingSignature = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionMissingType = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
}
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionInvalidID = `{
"id": ":?",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionDecodedIDEmpty = `{
"id": "\n",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionInvalidRawID = `{
"rawId": ":?",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionDecodedRawIDEmpty = `{
"rawId": "=0",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionInvalidClientData = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": ":?",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionInvalidAuthenticatorData = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": ":?",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionInvalidSignature = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": ":?",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionInvalidUserHandle = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ":?"
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionBadClientDataJSON = `{
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "aGVsbG8=",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionBadAuthenticatorData = `{
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "aGVsbG8=",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "public-key"
}`
// Test data adapted from apowers313's fido2-helpers (2019) at https://github.com/apowers313/fido2-helpers/blob/master/fido2-helpers.js
assertionBadType = `{
"id": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"rawId": "AAhH7cnPRBkcukjnc2G2GM1H5dkVs9P1q2VErhD57pkzKVjBbixdsufjXhUOfiD27D0VA-fPKUVYNGE2XYcjhihtYODQv-xEarplsa7Ix6hK13FA6uyRxMgHC3PhTbx-rbq_RMUbaJ-HoGVt-c820ifdoagkFR02Van8Vr9q67Bn6zHNDT_DNrQbtpIUqqX_Rg2p5o6F7bVO3uOJG9hUNgUb",
"response": {
"clientDataJSON": "eyJjaGFsbGVuZ2UiOiJlYVR5VU5ueVBERGRLOFNORWdURVV2ejFROGR5bGtqalRpbVlkNVg3UUFvLUY4X1oxbHNKaTNCaWxVcEZaSGtJQ05EV1k4cjlpdm5UZ1c3LVhaQzNxUSIsImNsaWVudEV4dGVuc2lvbnMiOnt9LCJoYXNoQWxnb3JpdGhtIjoiU0hBLTI1NiIsIm9yaWdpbiI6Imh0dHBzOi8vbG9jYWxob3N0Ojg0NDMiLCJ0eXBlIjoid2ViYXV0aG4uZ2V0In0",
"authenticatorData": "SZYN5YgOjGh0NBcPZHZgW4_krrmihjLHmVzzuoMdl2MBAAABaw",
"signature": "MEYCIQD6dF3B0ZoaLA0r78oyRdoMNR0bN93Zi4cF_75hFAH6pQIhALY0UIsrh03u_f4yKOwzwD6Cj3_GWLJiioTT9580s1a7",
"userHandle": ""
},
"type": "key"
}`
)
type parseAssertionTest struct {
name string
assertion []byte
wantCredentialID string
wantCredentialRawID []byte
wantRawClientDataJSON []byte
wantRawAuthenticatorData []byte
wantSignature []byte
wantUserHandle []byte
wantClientDataOrigin string
wantClientDataType string
wantClientDataChallenge string
wantTokenBindingStatus string
wantTokenBindingID string
wantRPIDHash []byte
wantUserPresent bool
wantUserVerified bool
wantCounter uint32
wantExtension map[string]interface{}
}
type parseAssertionErrorTest struct {
name string
assertion []byte
wantErrorMsg string
}
var parseAssertionTests = []parseAssertionTest{
{
name: "assertion without user handle",
assertion: []byte(assertion1),
wantCredentialID: assertion1Id,
wantCredentialRawID: base64Decode(assertion1Id),
wantSignature: base64Decode(assertion1Sig),
wantUserHandle: []byte{},
wantClientDataOrigin: "https://localhost:8443",
wantClientDataType: "webauthn.get",
wantClientDataChallenge: assertion1Challenge,
wantTokenBindingStatus: "",
wantTokenBindingID: "",
wantRPIDHash: assertion1RPIDHash,
wantUserPresent: true,
wantUserVerified: false,
wantCounter: uint32(363),
wantExtension: nil,
},
{
name: "assertion with user handle",
assertion: []byte(assertion2),
wantCredentialID: assertion2Id,
wantCredentialRawID: base64Decode(assertion2Id),
wantSignature: base64Decode(assertion2Sig),
wantUserHandle: base64Decode("YWs"),
wantClientDataOrigin: "https://webauthn.org",
wantClientDataType: "webauthn.get",
wantClientDataChallenge: assertion2Challenge,
wantTokenBindingStatus: string(TokenBindingSupported),
wantTokenBindingID: "",
wantRPIDHash: assertion2RPIDHash,
wantUserPresent: true,
wantUserVerified: true,
wantCounter: uint32(1),
wantExtension: nil,
},
}
var parseAssertionErrorTests = []parseAssertionErrorTest{
{"missing ID and raw ID", []byte(assertionMissingIDAndRawID), "assertion: missing credential id and raw id"},
{"missing client data", []byte(assertionMissingClientData), "assertion: missing client data"},
{"missing authenticator data", []byte(assertionMissingAuthenticatorData), "assertion: missing authenticator data"},
{"missing signature", []byte(assertionMissingSignature), "assertion: missing signature"},
{"missing type", []byte(assertionMissingType), "assertion: missing type"},
{"id is not base64 encoded", []byte(assertionInvalidID), "assertion: failed to base64 decode credential id"},
{"base64 decoded id is empty", []byte(assertionDecodedIDEmpty), "assertion: base64 decoded credential id is empty"},
{"raw id is not base64 encoded", []byte(assertionInvalidRawID), "assertion: failed to base64 decode credential raw id"},
{"base64 decoded raw id is empty", []byte(assertionDecodedRawIDEmpty), "assertion: base64 decoded credential raw id is empty"},
{"client data is not base64 encoded", []byte(assertionInvalidClientData), "assertion: failed to base64 decode client data"},
{"authenticator data is not base64 encoded", []byte(assertionInvalidAuthenticatorData), "assertion: failed to base64 decode authenticator data"},
{"signature is not base64 encoded", []byte(assertionInvalidSignature), "assertion: failed to base64 decode signature"},
{"user handle is not base64 encoded", []byte(assertionInvalidUserHandle), "assertion: failed to base64 decode user handle"},
{"client data is not well-formed JSON", []byte(assertionBadClientDataJSON), "client_data: failed to unmarshal: invalid character"},
{"authenticator data is not well-formed", []byte(assertionBadAuthenticatorData), "authenticator_data: failed to unmarshal: unexpected EOF"},
{"bad type", []byte(assertionBadType), "assertion: expected type as \"public-key\", got \"key\""},
}
func TestParseAssertion(t *testing.T) {
for _, tc := range parseAssertionTests {
t.Run(tc.name, func(t *testing.T) {
var credentialAssertion PublicKeyCredentialAssertion
if err := json.Unmarshal(tc.assertion, &credentialAssertion); err != nil {
t.Fatalf("failed to unmarshal assertion %s: %q", string(tc.assertion), err)
}
// verify credential id and raw id
if credentialAssertion.ID != tc.wantCredentialID {
t.Errorf("credential id %s, want %s", credentialAssertion.ID, tc.wantCredentialID)
}
if !bytes.Equal(credentialAssertion.RawID, tc.wantCredentialRawID) {
t.Errorf("credential raw id %v, want %v", credentialAssertion.RawID, tc.wantCredentialRawID)
}
if !bytes.Equal(credentialAssertion.Signature, tc.wantSignature) {
t.Errorf("signature %v, want %v", credentialAssertion.Signature, tc.wantSignature)
}
if !bytes.Equal(credentialAssertion.UserHandle, tc.wantUserHandle) {
t.Errorf("user handle %v, want %v", credentialAssertion.UserHandle, tc.wantUserHandle)
}
// verify client data
if credentialAssertion.ClientData.Origin != tc.wantClientDataOrigin {
t.Errorf("client data origin %s, want %s", credentialAssertion.ClientData.Origin, tc.wantClientDataOrigin)
}
if credentialAssertion.ClientData.Type != tc.wantClientDataType {
t.Errorf("client data type %s, want %s", credentialAssertion.ClientData.Type, tc.wantClientDataType)
}
if credentialAssertion.ClientData.Challenge != tc.wantClientDataChallenge {
t.Errorf("client data challenge %s, want %s", credentialAssertion.ClientData.Challenge, tc.wantClientDataChallenge)
}
if credentialAssertion.ClientData.TokenBinding == nil {
if len(tc.wantTokenBindingStatus) != 0 {
t.Errorf("client data has no token binding, want token binding status %s", tc.wantTokenBindingStatus)
}
if len(tc.wantTokenBindingID) != 0 {
t.Errorf("client data has no token binding, want token binding id %s", tc.wantTokenBindingID)
}
} else {
if string(credentialAssertion.ClientData.TokenBinding.Status) != tc.wantTokenBindingStatus {
t.Errorf("client data token binding status %s, want %s", credentialAssertion.ClientData.TokenBinding.Status, tc.wantTokenBindingStatus)
}
if credentialAssertion.ClientData.TokenBinding.ID != tc.wantTokenBindingID {
t.Errorf("client data token binding id %s, want %s", credentialAssertion.ClientData.TokenBinding.ID, tc.wantTokenBindingID)
}
}
// verify authenticator data
if !bytes.Equal(credentialAssertion.AuthnData.RPIDHash, tc.wantRPIDHash) {
t.Errorf("rp id hash %0x, want %0x", credentialAssertion.AuthnData.RPIDHash, tc.wantRPIDHash)
}
if credentialAssertion.AuthnData.UserPresent != tc.wantUserPresent {
t.Errorf("user present %t, want %t", credentialAssertion.AuthnData.UserPresent, tc.wantUserPresent)
}
if credentialAssertion.AuthnData.UserVerified != tc.wantUserVerified {
t.Errorf("user verified %t, want %t", credentialAssertion.AuthnData.UserVerified, tc.wantUserVerified)
}
if credentialAssertion.AuthnData.Counter != tc.wantCounter {
t.Errorf("counter %d, want %d", credentialAssertion.AuthnData.Counter, tc.wantCounter)
}
if !reflect.DeepEqual(credentialAssertion.AuthnData.Extensions, tc.wantExtension) {
t.Errorf("extensions %v, want %v", credentialAssertion.AuthnData.Extensions, tc.wantExtension)
}
// verify attested credential data
if credentialAssertion.AuthnData.AAGUID != nil {
t.Errorf("AAGUID %0x, want nil", credentialAssertion.AuthnData.AAGUID)
}
if credentialAssertion.AuthnData.CredentialID != nil {
t.Errorf("authenticator credential id %0x, want nil", credentialAssertion.AuthnData.CredentialID)
}
if credentialAssertion.AuthnData.Credential != nil {
t.Errorf("credential %+v, want nil", credentialAssertion.AuthnData.Credential)
}
})
}
}
func TestParseAssertionError(t *testing.T) {
for _, tc := range parseAssertionErrorTests {
t.Run(tc.name, func(t *testing.T) {
var credentialAssertion PublicKeyCredentialAssertion
if err := json.Unmarshal(tc.assertion, &credentialAssertion); err == nil {
t.Errorf("unmarshal assertion %s returns no error, want error containing substring %q", string(tc.assertion), tc.wantErrorMsg)
} else if !strings.Contains(err.Error(), tc.wantErrorMsg) {
t.Errorf("unmarshal assertion %s returns error %q, want error containing substring %q", string(tc.assertion), err, tc.wantErrorMsg)
}
})
}
}