Canon image runner 3025 Manual page 122

User signature
X
X.509 (DER)
4
4-10
Glossary
Adds a digital signature to a private document, based on the registered user
information when logging on using a login service. This prevents unauthorized access
and alterations to the signed document.
X.509 is a standard for digital key certificates defined by the ITU (International
Telecommunications Union). DER (Distinguished Encoding Rules) is a binary
encoding format for digital key data.