Entrust Remote Signing Service in Signhost

You can use your Entrust RSS (Qualified) certificate on a mobile app, to sign documents directly from Signhost.

RSS enables your employees to apply digital signatures on documents using a certificate with signing keys securely hosted in the Entrust cloud. This is a full eIDAS Qualified Electronic signatures.

Read more about it here:

https://www.entrust.com/digital-security/certificate-solutions/products/digital-signing/digital-signing-as-a-service

Or see this