The extension is accessible when going to site login page. It works in tandem with dedicated card type, it takes care of outputting connection informations (url + TLS public key)
The Card application is used to scan the barcode. The card that corresponds to the site is automatically selected and output a response that allows authentication...
The KerPass browser extension is designed to relay website authentication request. It outputs a barcode that encodes :
It allows to prevent credential capture by mean of :