diff --git a/app/scripts/comp/app/yubikey.js b/app/scripts/comp/app/yubikey.js
index 1bb8bfd6..c7867151 100644
--- a/app/scripts/comp/app/yubikey.js
+++ b/app/scripts/comp/app/yubikey.js
@@ -80,9 +80,13 @@ const YubiKey = {
                 const yubiKeysIncludingEmpty = stdout
                     .trim()
                     .split(/\n/g)
-                    .map(line => (line.match(/\d{5,}$/g) || [])[0]);
+                    .map(line => {
+                        const fullName = line;
+                        const serial = (line.match(/\d{5,}$/g) || [])[0];
+                        return { fullName, serial };
+                    });
 
-                const yubiKeys = yubiKeysIncludingEmpty.filter(s => s);
+                const yubiKeys = yubiKeysIncludingEmpty.filter(s => s.serial);
 
                 if (
                     yubiKeysIncludingEmpty.length === 1 &&
diff --git a/app/scripts/locales/base.json b/app/scripts/locales/base.json
index e3d7f597..7aa641c9 100644
--- a/app/scripts/locales/base.json
+++ b/app/scripts/locales/base.json
@@ -233,6 +233,12 @@
     "openListErrorBody": "There was an error loading file list",
     "openShowAllFiles": "Show all files",
     "openFileNoCacheError": "File not found in the cache storage. This can happen because browser storage was cleaned up. To open the file, remove it from KeeWeb and add it again.",
+    "openChalRespHeader": "Challenge-Response",
+    "openChalRespLoading": "Loading the list of YubiKeys",
+    "openChalRespSelectYubiKey": "Select a YubiKey that you would like to use",
+    "openChalRespErrorNotInstalled": "YubiKey integration is not configured, please go to settings to set it up",
+    "openChalRespErrorEmpty": "No YubiKeys found",
+    "openChalRespSlot": "slot",
 
     "detAttDownload": "Shift-click the attachment button to download it or",
     "detAttDelToRemove": "Delete to remove",
diff --git a/app/scripts/models/external/yubikey-otp-model.js b/app/scripts/models/external/yubikey-otp-model.js
index c8b0ff1b..209f01b0 100644
--- a/app/scripts/models/external/yubikey-otp-model.js
+++ b/app/scripts/models/external/yubikey-otp-model.js
@@ -35,7 +35,7 @@ class YubiKeyOtpModel extends ExternalOtpDeviceModel {
             const openErrors = [];
             const openNextYubiKey = () => {
                 const yubiKey = yubiKeys.shift();
-                this._addYubiKey(yubiKey, err => {
+                this._addYubiKey(yubiKey.serial, err => {
                     if (YubiKey.aborted) {
                         return callback('Aborted');
                     }
diff --git a/app/scripts/views/open-chal-resp-view.js b/app/scripts/views/open-chal-resp-view.js
new file mode 100644
index 00000000..5b669831
--- /dev/null
+++ b/app/scripts/views/open-chal-resp-view.js
@@ -0,0 +1,65 @@
+import { View } from 'framework/views/view';
+import { YubiKey } from 'comp/app/yubikey';
+import { Locale } from 'util/locale';
+import template from 'templates/open-chal-resp.hbs';
+
+class OpenChalRespView extends View {
+    template = template;
+
+    events = {
+        'click .open-chal-resp__item': 'itemClick'
+    };
+
+    constructor() {
+        super();
+
+        YubiKey.checkToolStatus().then(status => {
+            if (this.removed) {
+                return;
+            }
+            if (status === 'ok') {
+                YubiKey.list((err, yubiKeys) => {
+                    this.error = err;
+                    this.yubiKeys = [];
+                    for (const { fullName, serial } of yubiKeys) {
+                        for (const slot of [1, 2]) {
+                            this.yubiKeys.push({
+                                fullName,
+                                serial,
+                                slot
+                            });
+                        }
+                    }
+                    this.render();
+                });
+            } else {
+                this.render();
+            }
+        });
+    }
+
+    render() {
+        let error = this.error;
+
+        if (YubiKey.ykmanStatus === 'error') {
+            error = Locale.openChalRespErrorNotInstalled.replace('{}', 'ykman');
+        }
+        if (this.yubiKeys && !this.yubiKeys.length) {
+            error = Locale.openChalRespErrorEmpty;
+        }
+
+        super.render({
+            error,
+            yubiKeys: this.yubiKeys,
+            loading: !YubiKey.ykmanStatus || YubiKey.ykmanStatus === 'checking'
+        });
+    }
+
+    itemClick(e) {
+        const el = e.target.closest('[data-serial]');
+        const { serial, slot } = el.dataset;
+        this.emit('select', { serial, slot });
+    }
+}
+
+export { OpenChalRespView };
diff --git a/app/scripts/views/open-view.js b/app/scripts/views/open-view.js
index aea34b20..11aef649 100644
--- a/app/scripts/views/open-view.js
+++ b/app/scripts/views/open-view.js
@@ -19,6 +19,7 @@ import { Logger } from 'util/logger';
 import { InputFx } from 'util/ui/input-fx';
 import { OpenConfigView } from 'views/open-config-view';
 import { StorageFileListView } from 'views/storage-file-list-view';
+import { OpenChalRespView } from 'views/open-chal-resp-view';
 import { omit } from 'util/fn';
 import { GeneratorView } from 'views/generator-view';
 import template from 'templates/open.hbs';
@@ -1043,16 +1044,19 @@ class OpenView extends View {
         if (this.busy) {
             return;
         }
-        this.busy = true;
-        YubiKey.checkToolStatus().then(status => {
-            if (status !== 'ok') {
-                this.busy = false;
-                return Events.emit('toggle-settings', 'devices');
-            }
 
-            this.busy = false;
+        const chalRespView = new OpenChalRespView();
+        chalRespView.on('select', e => {
+            // console.log('e', e.serial, e.slot);
+        });
 
-            Alerts.notImplemented();
+        Alerts.alert({
+            header: Locale.openChalRespHeader,
+            icon: 'exchange',
+            buttons: [{ result: '', title: Locale.alertCancel }],
+            esc: '',
+            click: '',
+            view: chalRespView
         });
     }
 }
diff --git a/app/styles/areas/_open.scss b/app/styles/areas/_open.scss
index 3f62bdc0..b30f79f3 100644
--- a/app/styles/areas/_open.scss
+++ b/app/styles/areas/_open.scss
@@ -388,3 +388,19 @@
         display: inline-block;
     }
 }
+
+.open-chal-resp {
+    &__head {
+        padding: $base-padding;
+    }
+    &__icon {
+        margin-right: $small-spacing;
+    }
+    &__item {
+        padding: $base-padding;
+        cursor: pointer;
+        &:hover {
+            background-color: var(--action-background-color-focus-tr);
+        }
+    }
+}
diff --git a/app/templates/open-chal-resp.hbs b/app/templates/open-chal-resp.hbs
new file mode 100644
index 00000000..43eaea75
--- /dev/null
+++ b/app/templates/open-chal-resp.hbs
@@ -0,0 +1,20 @@
+<div class="open-chal-resp">
+    {{#if loading}}
+        <div class="open-chal-resp__head">
+            <i class="open-chal-resp__icon fa fa-spinner fa-spin"></i> {{res 'openChalRespLoading'}}
+        </div>
+    {{else if error}}
+        <div class="open-chal-resp__head">
+            <i class="open-chal-resp__icon fa fa-ban"></i> {{error}}
+        </div>
+    {{else}}
+        <div class="open-chal-resp__head">{{res 'openChalRespSelectYubiKey'}}:</div>
+        <div>
+            {{#each yubiKeys as |yk|}}
+                <div class="open-chal-resp__item" data-serial="{{yk.serial}}" data-slot="{{yk.slot}}">
+                    {{yk.fullName}}, {{res 'openChalRespSlot'}} {{yk.slot}}
+                </div>
+            {{/each}}
+        </div>
+    {{/if}}
+</div>