SigmaBackup

sigma_gpg.sh

Uses only GPG to encrypt files using the SHA512 s2k key derivation and AES-256-CFB symmetric encryption

To create a backup from a directory
    sigma_backup.sh -c /path/to/directory"
To restore from a backup
    sigma_backup.sh -r /path/to/file.tar.gpg"

sigma_scrypt.py

Uses Scrypt KDF to derive a key and use that key to encrypt files using GPG with AES-256-CFB symmetric encryption

To create a backup from a directory
    python sigma_scrypt.py -c /path/to/directory"
To restore from a backup
    python sigma_scrypt.py -r /path/to/file.tar.gpg"

sigma_age.sh

Uses Age to encrypt files

Format Specification

To create a backup from a directory
    sigma_age.sh -c /path/to/directory"
To restore from a backup
    sigma_age.sh -r /path/to/file.tar.age"