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Using GPG for file encryption
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| # file encryption using private and public key : the recipent public key is used in this case | |
| alice$ gpg --output secret.bin --encrypt --recipient bob.public.key secret.txt | |
| bob$ gpg --output secret.txt --decrypt secret.txt | |
| # file encryption without using priv/pub key | |
| gpg --output secret.bin --symmetric --cipher-algo AES256 secret.txt | |
| gpg --output secret.txt --decrypt secret.bin |
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See also https://www.gnupg.org/gph/en/manual/x110.html
https://stackoverflow.com/questions/28247821/openssl-vs-gpg-for-encrypting-off-site-backups
https://stackoverflow.com/questions/16056135/how-to-use-openssl-to-encrypt-decrypt-files/31552829#31552829