-1

I know there is a way to do it, but I don't know how to do it: the default backend for LUKS is libgcrypt and I want to test it with the openssl cryptographic library.

I was told that there is a configuration file to edit but I didn't find it.

UPDATE:

On most distros the option --with-crypto_backend=openssl won't compile without installing libssl-dev (signaled as dependence) AND pkg-config (NOT signaled).

1 Answer 1

2

This is a compile-time option, not a run-time option. If you run ./configure --help on the cryptsetup source code, it'll reveal that --with-crypto_backend=openssl will do what you want.

2
  • I have to correct me: I could compile with openssl, but comparing the values of the iteration count for the passhprase, there is no difference between openssl and libgcrypt. And this appear strange to me. I tested it on arch, Debian Jessie, Ubuntu 15.01, Lubuntu 15.01. On arch I can see a 50% positive difference for openssl. It seems like it is not using a different backend
    – refex
    Jan 17, 2016 at 14:31
  • If you're trying to replace your distro's cryptsetup with a custom-built one, you need to make sure you're running the one you think you are. This varies a bit from distro to distro, and is beyond the scope of infosec.se.
    – Mark
    Jan 17, 2016 at 20:01

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.