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Just use rclone. It does this natively.
Can you point to where such a capability is mentioned in the documentation? I'm using rclone right now
Thanks, this is great!
I recommend making a giant tarball and encrypting that with gpg and then encrypting again with rclone.
I wouldn't be able to do incremental backups in such a case
Yes GPG should add appropriate padding (random initialization vector) to not reveal whether two ciphertexts have the same plaintext. It makes no real attempt to conceal that the two plaintexts have the same length. If you want that, best bet is to make all ciphertexts the same length, by padding plaintexts out to 1MB or whatever, and turning off compression. Actually you might first check the manual to see if there is already an option for that. There are a lot, and I no longer keep track.
Cryptographer's saying (Silvio Micali, I think): "A good disguise does not reveal the person's height". So you are on the right track.
I also have media and other binary blobs which I'd like to archive in an encrypted fashion, will GPG suffice? ChatGPT mentioned OpenSSL for this but I'm not sure where that's taking me.
Openssl really isn't the right thing for that. GPG is fine for individual files if you don't mind leaking the approximate length. You may be better off with borg backup depending on your exact use case.
Any encryption worth being called that randomises itself such that the same file, encrypted twice with the same key, produces completely different ecrypted versions.
To put it another way, if similarities in files could be detected despite their encryption, then the encryption would be worthless.
https://en.m.wikipedia.org/wiki/Ciphertext_indistinguishability
check out PicoCrypt
this post was submitted on 13 May 2024
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