Amazon S3 - which encryption to use?

[xilex]

Hi all, I'm trying to understand what encryption options should be used when uploading files to Amazon S3. I am moving them directly to Deep Glacier. So far I see a number of options:

1. under my bucket > Properties, there is an option for Default encryption, which looks like a server-side encryption

2. in Cyberduck, I can create a new Encrypted Vault that uses my specified passphrase

3. in Cyberduck, under Preferences > S3 > Encryption, I have the option to choose the algorithm to encrypt when uploading

Are all three independent of each other? And is there a preferred way? Thank you.

[David Kocher]

We support S3 server side encryption which comes in two flavours with keys managed by S3 or in AWS Key Management Service (KMS). Refer to https://trac.cyberduck.io/wiki/help/en/howto/s3#ServerSideEncryptionSSE

Additionally we support client side encryption for any server storage using the Cryptomator vault format. Refer to https://cyberduck.io/cryptomator/

— David

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