Originally Posted by
bocastephen
How reliable and secure is the encryption? There is a lot of information on my laptop I'd like to offload from the hard disk and send to Glacier, but not unless I know it's completely secure.
From docs on version 1 & 2
http://www.haystacksoftware.com/arq/s3_data_format.txt
Encryption
----------
Each blob is encrypted using AES-256 with the encryption key you chose when
you first ran Arq.
The SHA1 used for the blob's name is the SHA1 of the *encrypted* blob.
Arq version 1 used your encryption password as the encryption key.
Arq version 2 derives a key from your encryption password using the PKCS5_PBKDF2_HMAC_SHA1() function.
See the CryptoKey.m source code for more details:
https://github.com/sreitshamer/arq_r...io/CryptoKey.m