12-16-2014
Quote:
Originally Posted by
jim mcnamara
The point is not any of the above. Where do you store the key to decrypt the half-key?
This is a logical fallacy. It is called circular reasoning. I need a key to decrypt a key. I still have to store that secondary key somewhere, or the system will have to regenerate it. Regenerate means I can see it in the source. Storage means it is a sitting duck, unencrypted.
If you agree it's a fallacy, then what
were you suggesting with:
Quote:
...the half-keys should be encrypted - both on the user side and the system side.
Unless your point was simply that you shouldn't keep them around indefinitely in retrievable form -- and I don't. I don't encrypt them though, just delete them at regular intervals, as the session times out.
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LEARN ABOUT NETBSD
nologin
NOLOGIN(5) BSD File Formats Manual NOLOGIN(5)
NAME
nologin -- file disallowing and containing reason for disallowing logins
DESCRIPTION
The file /etc/nologin, if it exists, causes the login procedure, used by programs such as login(1), to terminate. The program may display
the contents of /etc/nologin to the user before exiting.
This file is a simple mechanism to temporarily prevent incoming logins. As such, the file /etc/nologin is created by shutdown(8) five min-
utes before system shutdown, or immediately if shutdown is in less than five minutes. The file /etc/nologin is removed just before
shutdown(8) exits.
To disable logins on a per-account basis, see nologin(8).
The file /etc/nologin has no affect on the login procedure for the root user.
FILES
/etc/nologin The nologin file resides in /etc.
EXAMPLES
NO LOGINS: System going down at 18:22
SEE ALSO
login(1), ftpd(8), nologin(8), rshd(8), shutdown(8), sshd(8)
BSD
December 9, 2005 BSD