On Wed, Jul 25, 2012 at 11:57 AM, Wojciech Puchar <woj...@wojtek.tensor.gdynia.pl> wrote: > i need high speed disk encryption (many disks running in parallel, lots of
> I'm not cryptography expert, is CBC somehow "less secure", and if so is it > really a problem? XTS-AES is a standard devised specifically for disk encryption - it supports operations on sectors that aren't divisible by the cipher block size. See http://en.wikipedia.org/wiki/Disk_encryption_theory#XEX-based_tweaked-codebook_mode_with_ciphertext_stealing_.28XTS.29 I personally would be fine with AES-CTR mode, since I don't see the need to defend against the mythical "strong" adversary who can write arbitrary bits to unused sectors and then ask to have them decrypted. AES-CTR doesn't (by itself) have any integrity check. AES-CBC is fine, but the ciphertext is larger than the plaintext. - M _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
