Added a form for entering a passphrase for a private ssh key and the corresponding logic for processing a private key

client/ui/qml/Controls/PopupWithInputField.qml

@@ -0,0 +1,62 @@
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+
+Popup {
+    id: root
+
+    property alias text: textField.text
+    property alias placeholderText: textField.placeholderText
+    property string yesText: "yes"
+    property string noText: "no"
+    property var yesFunc
+    property var noFunc
+
+    signal editingFinished()
+
+    anchors.centerIn: Overlay.overlay
+    modal: true
+    closePolicy: Popup.NoAutoClose
+
+    width: parent.width - 20
+
+    ColumnLayout {
+        width: parent.width
+
+        TextField {
+            id: textField
+            horizontalAlignment: Text.AlignHCenter
+            Layout.fillWidth: true
+            font.pixelSize: 16
+            echoMode: TextInput.Password
+        }
+
+        RowLayout {
+            Layout.fillWidth: true
+            BlueButtonType {
+                id: yesButton
+                Layout.preferredWidth: parent.width / 2
+                Layout.fillWidth: true
+                text: yesText
+                onClicked: {
+                    root.enabled = false
+                    if (yesFunc && typeof yesFunc === "function") {
+                        yesFunc()
+                    }
+                    root.enabled = true
+                }
+            }
+            BlueButtonType {
+                id: noButton
+                Layout.preferredWidth: parent.width / 2
+                Layout.fillWidth: true
+                text: noText
+                onClicked: {
+                    if (noFunc && typeof noFunc === "function") {
+                        noFunc()
+                    }
+                }
+            }
+        }
+    }
+}

client/ui/qml/main.qml

@@ -234,6 +234,9 @@ Window  {
             popupWarning.popupWarningText = message
             popupWarning.open()
         }
+        function onShowPassphraseRequestMessage() {
+            popupWithInputField.open()
+        }
     }
 
     MessageDialog {
@@ -355,4 +358,21 @@ Window  {
     PopupWarning {
         id: popupWarning
     }
+    PopupWithInputField {
+        id: popupWithInputField
+        placeholderText: "Enter private key passphrase"
+        yesFunc: function() {
+            editingFinished()
+            close()
+            UiLogic.passphraseDialogClosed()
+            text = ""
+        }
+        noFunc: function() {
+            close()
+            UiLogic.passphraseDialogClosed()
+        }
+        onEditingFinished: {
+            UiLogic.privateKeyPassphrase = text
+        }
+    }
 }