A server signature is a digital signature performed with a private key located on the server, which therefore can be performed entirely on the backend (as opposed to web signatures which must necessarily involve at least one step performed on the frontend).
The way to implement server signatures depends on your programming language. Read one of the sections below accordingly:
The recommended way to implement server signatures on .NET applications is using the PKI SDK.
By importing the
.pfx file of the certificate which will be used for signature to the operating system's certificate
store, the certificate will be available when loading certificates from the OS store. See article
Certificates with private key for more information on how to load
certificates from the OS store, and article Signatures for information on how to perform
Other programming languages
The recommended way to implement server signatures on all other programming languages is using Rest PKI.
The Rest PKI samples that demonstrate how to implement this are called PAdES server key and CAdES server key. Check the Rest PKI samples availability per project to see on which samples projects these samples are available.