![]() The above discussion assumes that you control which window is focused in dom0 at the time of the paste. ![]() See also this article for more information on this topic, and some ideas of how we might solve this problem in some future version of Qubes, as well as this message from qubes-devel. Therefore, you should always copy clipboard data only from more trusted to less trusted qubes. ![]() It even applies to copying files between physically separate (air-gapped) machines. This is a general problem and applies to any data transfer from less trusted to more trusted qubes. However, one should keep in mind that performing a copy and paste operation from less trusted to more trusted qube is always potentially insecure, since the data that we copy could exploit some hypothetical bug in the target qube.įor example, the seemingly-innocent link that we copy from an untrusted qube could turn out to be a large buffer of junk that, when pasted into the target qube’s word processor, could exploit a hypothetical bug in the undo buffer. #COPY AND PASTE PASSWORD#Without such a system in place, any password you were to copy from the password manager in your vault qube to another qube, for example, would immediately be leaked to every other running qube in the system, including qubes that are untrusted by default, such as sys-net.īy giving you precise control over exactly which qube receives the inter-qube clipboard content, then immediately wiping the inter-qube clipboard afterward, Qubes OS protects the confidentiality of the text being copied. The inter-qube clipboard system is secure because it doesn’t allow any qube other than your selected target to steal any contents from the inter-qube clipboard. #COPY AND PASTE FULL#This process might look complicated at first glance, but in practice it is actually very easy and fast once you get used to it.Īt the same time, it provides you with full control over exactly which qube receives the content of the inter-qube clipboard every time. Paste the text in the target app in qube B normally (e.g., by pressing Ctrl+V). This copies the text from the inter-qube clipboard to qube B’s clipboard and clears the inter-qube clipboard, ensuring that only qube B will have access to the copied text. Select the target app in qube B and press Ctrl+Shift+V. This copies the text from qube A’s clipboard to the inter-qube clipboard. With the source app in qube A still in focus, press Ctrl+Shift+C. Select text from the source app in qube A, then copy it normally (e.g., by pressing Ctrl+C). ![]() In order to copy text from qube A to qube B: Qubes OS features a secure inter-qube clipboard that allows you to copy and paste text between qubes. If you wish to copy more complex data, such as rich text or images, see copying and moving files between qubes.įor dom0, see copying from (and to) dom0. This page is about copying and pasting plain text. ![]()
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