Is Signer.Digital Digital Signature, PKI safe?
Signer.Digital exposes a postMessage bridge on every page that any website can use to relay commands to a local native PKI host.
The extension injects a script into all pages that exposes a window.SignerDigital API, allowing any website to call methods that retrieve smart card certificate details including name, email, organisation, and thumbprint. Content scripts relay postMessage events to the background page, which forwards them without filtering to the native host signer.digital.chrome.host. Because the only gate is a constant string (src: 'user_page.js') that ships inside the extension's web-accessible resources, any page can craft matching messages and invoke arbitrary native messaging commands.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itChartered Information Systems Pvt. Ltd. - no other listings under this identity, 3 shared hostnames
Chartered Information Systems Pvt. Ltd. - no other listings under this identity, 3 shared hostnames
What this publisher told the store about itself, and the other listings that told it the same thing.
Shared hosts - 3 hostnames
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 5.1.2. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to. The current listed version is 5.3.0, which we have not unpacked yet.
Talk to a program installed on your computer, outside the browser's sandbox
nativeMessaging