“Foxit. Trust no one. Validate everything. Even the present.”
The number one cause of this error is a wrong system date. If your PC thinks it is 2050, every certificate will look expired. the certificate has exceeded the time of validity foxit
Below it, in smaller gray text: “This document’s digital signature was applied with a certificate that expired on April 12, 2009. The document may have been altered or tampered with since that time.” “Foxit
“Arthur… Foxit isn’t wrong. The certificate is cryptographically valid. The hash matches. The signature hasn’t been broken. But the timestamp says 2009. The file says 2024. That’s not a glitch. That’s a time-traveling signature.” Even the present
occurs when a digital signature's security certificate is either expired or incorrectly interpreted by the software
A pause. Then, the sound of a keyboard. “Send it to me.”
Arthur stared at the crimson banner. The certificate has exceeded the time of validity.