Furthermore, this method is the gold standard for data in transit. Email was never designed to be secure, and standard attachments are notoriously easy to intercept. Sending a compressed, encrypted archive ensures that even if the email is caught in a phishing net or sent to the wrong address, the contents remain secure.
7-Zip offers excellent compression ratios and natively supports AES-256 password protection. 7z a -p -mhe=on secure_archive.7z /path/to/folder Use code with caution. : Prompts you to enter a password.
7z x -p encrypted.tar.gz
What you are using (Ubuntu, CentOS, macOS, Windows)? Do you need to automate this process inside a bash script? Will the final file be shared with non-technical users ? Share public link password protect tar.gz file
You’ll be prompted to enter and verify a password.
To create a tar.gz file and encrypt it simultaneously, you can pipe the tar output into gpg.
This method is refreshingly simple. GPG automatically compresses the data before encryption, so you don't need to use tar at all, though you still can. Furthermore, this method is the gold standard for
openssl enc -aes-256-cbc -salt -in "/tmp/$BACKUP_NAME.tar.gz" -out "/secure/backups/$BACKUP_NAME.tar.gz.enc" -pass pass:"$PASSWORD"
zip --encrypt -r secured_backup.zip my_folder/
You will use the aes-256-cbc cipher (Advanced Encryption Standard 256-bit) for military-grade security. 7z x -p encrypted
To extract the file, use:
tar -czf - /path/to/folder | openssl enc -aes-256-cbc -salt -pbkdf2 -out secure_archive.tar.gz.enc Use code with caution.