Encryption

Is it possible to change the passphrase after applying Full Disk Encryption by it to your OpenBSD server ?

Yes !! This post shows how. It’s a really simple way with bioctl.

Summary

OpenBSD supports full disk encryption (FDE) with softraid and bioctl. The tutorial for it is officially provided. With FDE, even if you lose your computer, your data is strongly protected (as long as the key is in safety).

When you try to change user password on OpenBSD and it is not strong enough, you will see the error:

$ passwd
Changing password for <youruser>.
Old password:
New password:
Please use a more complicated password.
Please use a different password. Unusual capitalization,
control characters, or digits are suggested.
New password:

You had better follow the messages.