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52 lines
1.7 KiB
52 lines
1.7 KiB
The KCheckPass authentication software:
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-----------------------------------------
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KCheckPass is KDE's authentication program. It is meant to be
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used by any software in need of user authentication, most
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notably screensavers.
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It enhances security be the following means:
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- It's only a small program, which is hopefully simple enough to
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allow it to be SUID root. Setting it to SUID root is necessary
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on Shadow Password systems.
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- No other program in need of user authentication, must be
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SUID root.
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- It provides a single implementation to check passwords. So one
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only must take a closer look at KCheckPass to ensure password
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security. It's much easier for programs using KCheckPass to
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preserve security.
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Technique:
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----------
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KCheckPass is a simple password checker. Just invoke and
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send it the password on stdin.
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If the password was accepted, the program exits with 0;
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if it was rejected, it exits with 1. Any other exit
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code signals an error.
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Compilation hints:
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------------------
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Compile with -DHAVE_VSYSLOG if you have vsyslog().
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Compile with -DHAVE_PAM if you have a PAM system, and link with -lpam -ldl
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(If libdl is present).
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Compile with -DHAVE_SHADOW if you have a shadow password system.
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Copyright, Author and License notice:
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-------------------------------------
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Copyright (C) 1998, Caldera, Inc.
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Released under the GNU General Public License
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Olaf Kirch <okir@caldera.de> General Framework and PAM support
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Christian Esken <esken@kde.org> Shadow and /etc/passwd support
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Oswald Buddenhagen <ossi@kde.org> Binary conversation interface, etc.
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Some parts were taken from kscreensaver's passwd.cpp
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Currently this software is maintained by Oswald Buddenhagen <ossi@kde.org>.
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Please send new authentication modules (checkpass_*.c) to me.
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