Digital Signatures

Introduction

A digital signature is an authenticated and encrypted electronic stamp for digital information. It verifies that what has been signed originated from the signer and has not been changed.

In Excel you can add a digital signature in the following way:

Epplus Example

As of Epplus 8.0 You can also add a Digital Signature in Epplus via the workbook. To add a minimal digital signature you, much like when signing VBA must supply a X509Certificate2 to sign with.

In code, it can be as simple as: