LibreOffice supports digital signatures via GnuPG for OpenDocument Format (ODF) files.

Digital Signature: https://en.wikipedia.org/wiki/Digital_signature
GnuPG: https://mastodon.online/@blueghost/111974048270035570
ODF: https://mastodon.online/@blueghost/111936020896554127

Select: File > Digital Signatures > Digital Signatures > Sign Document > Select Certificate > Sign > Enter Password > OK > Close

A banner will appear stating the document is digitally signed.

Website: https://www.libreoffice.org
Mastodon: @libreoffice

#LibreOffice #DigitalSignature #GnuPG #GPG #InfoSec #ODF

Does anyone have suggestions that can do #cryptographic signature verification of streaming data (as in a pipe)? The problem with #gpg in this case is that it will emit all the data out the pipe, only indicating with an exit code if the signature was good - at which point most of the data may have been processed. #SequoiaPGP is slightly better, withholding the last 25MB until things are fully verified.

I suspect I need something that signs blocks of the input. Does it exist? #askFedi

Thunderbird GPG Ready - E-Mails verschlüsseln und signieren

Thunderbird bietet die Möglichkeit E-Mails mit OpenPGP zu signieren und zu verschlüsseln.
Das E-Mail-Programm bietet eine übersichtliche GUI zur Verwaltung und hilft damit dem Benutzer bei der Einrichtung und der Arbeit mit der Verschlüsselung.

https://strobelstefan.de/blog/2023/12/06/thunderbird_openpgp_ready_-_e-mails_verschl%C3%BCsseln_und_signieren/

#thunderbird #gpg #yubikey

LibreOffice supports symmetric and asymmetric encryption for OpenDocument Format (ODF) files.

Symmetric encryption: https://en.wikipedia.org/wiki/Symmetric-key_algorithm
Asymmetric encryption: https://en.wikipedia.org/wiki/Public-key_cryptography

Select File > Save/Save As

The "Save with password" option encrypts the file with AES-256.
The "Encrypt with GPG key" option encrypts the file with a public key.

Website: https://www.libreoffice.org
Mastodon: @libreoffice

#LibreOffice #Encryption #OpenSource #OpenPGP #PGP #GnuPG #GPG #InfoSec #Privacy #Security