SDChromeExtHost_1.0.0_x64 is use with Google Chrome for signing PDF documents.
It will include HYP2003 Drivers into the system so you not need to install HYP2003/ePass2003 for access certificate from token.
You must open SDChromeExtHost_1.0.0_x64.deb package with Software Install so that required dependecy is installed in your Ubuntu system and add extension in your browser from URL:https://chrome.google.com/webstore/detail/glghokcicpikglmflbbelbgeafpijkkf
For further assistance write us on info@signer.digital or call us on +91 07126638888 