Maximum useful size of keyfile
V V <[email protected]>
| Newsgroups | gmane.linux.kernel.device-mapper.dm-crypt |
|---|---|
| Message-ID | <CAB-V1p6S22T_K6jVEU6WfgCCLW2eBAwVo81-nQQnCZ3kFdogSA@mail.gmail.com> |
What is the maximum useful size of a keyfile with respect to the --cipher and --key-size parameters? For example, with `--cipher aes-xts-plain64 --key-size 512` is there any advantage, be it security or otherwise, of using a keyfile which is larger than 512 bits (64 bytes)? The context of this question is that I am creating an encrypted disk that will only be unlocked with keyfiles. I noticed that `cryptsetup --help` gives a maximum keyfile size of 8192kB which is quite large in comparison to the key size. I did not find the answer in the FAQ. _______________________________________________ dm-crypt mailing list [email protected] https://www.saout.de/mailman/listinfo/dm-crypt