Twin directories of skey:

[DIR]  ftp://ftp.uni-leipzig.de/pub/linux/pub/comp/os/linux/sunsite/system/Network/sunacm/Other/skey/
[DIR]  ftp://ftp.udel.edu/pub/people/baxter/skey/
[DIR]  ftp://ftp.research.telcordia.com/pub/world/Group.archive/skey/
[DIR]  ftp://ftp.research.telcordia.com/pub/nmh/skey/
[DIR]  ftp://ftp.eutelia.it/pub/Sunsite_Mirror/system/network/sunacm/Other/skey/
[DIR]  ftp://ftp.dhp.com/pub/crypto/skey/
[DIR]  ftp://ftp.kfki.hu/pub/packages/security/COAST/netutils/skey/skey/
[DIR]  ftp://ftp.kfki.hu/pub/packages/security/COAST/netutils/skey/
[DIR]  ftp://ftp.registro.br/ietf/skey/
[DIR]  ftp://ftp.ripe.net/mirrors/ietf/skey/
[DIR]  ftp://ftp.armedslack.org/armedslack/armedslack-11.0/armedslack-extra/source/skey/
[DIR]  ftp://ftp.infradead.org/pub/skey/
[DIR]  ftp://ftp.prz.rzeszow.pl/pub/gentoo/portage/sys-auth/skey/
[DIR]  ftp://ftp.rit.edu/pub/techb/skey/
[DIR]  ftp://ftp.isi.edu/ietf/skey/
[DIR]  ftp://ftp.nz.debian.org/gentoo-x86-portage/sys-auth/skey/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-src/pkgsrc/security/skey/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/rhaen/reports/20071231.0851/security/skey/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-release-4-0/src/usr.bin/skey/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/dmcmahill/pkgstat/2004-04-25-alpha/security/skey/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040121/security/skey/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/usr.bin/skey/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo-portage/sys-auth/skey/
[DIR]  ftp://ftp.swin.edu.au/gentoo-portage/sys-auth/skey/
[DIR]  ftp://ftp.cc.ic.ac.uk/pub/packages/skey/
[DIR]  ftp://ftp.mgts.by/pub/gentoo/gentoo-portage/sys-auth/skey/
[DIR]  ftp://ftp.fhg.de/archive/gmd/div/documents/ietf/skey/
[DIR]  ftp://ftp.lanet.lv/pub/unix/security/skey/
[DIR]  ftp://ftp.dntis.ro/pub/.1/ftp.hacktic.nl/crypto/programs/skey/skey/
[DIR]  ftp://ftp.dntis.ro/pub/.1/ftp.hacktic.nl/crypto/programs/skey/
[DIR]  ftp://ftp.dntis.ro/pub/.1/ftp.hacktic.nl/security/coast.cs.purdue.edu/unix/netutils/skey/skey/
[DIR]  ftp://ftp.dntis.ro/pub/.1/ftp.hacktic.nl/security/coast.cs.purdue.edu/unix/netutils/skey/
[DIR]  ftp://ftp.cs.mun.ca/pub/mirror/gentoo-portage/sys-auth/skey/
[DIR]  ftp://ftp.linux.org.uk/pub/linux/Networking/attic/Other/skey/
[DIR]  ftp://sapi.vlsm.org/gentoo-portage/sys-auth/skey/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-4-0/src/usr.bin/skey/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-1/src/usr.bin/skey/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-0/src/usr.bin/skey/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-current/src/usr.bin/skey/
[DIR]  ftp://ftp.ietf.org/ietf-online-proceedings/95apr/area.and.wg.reports/sec/skey/
[DIR]  ftp://ftp.ietf.org/ietf/skey/
[DIR]  ftp://ftp.ietf.org/concluded-wg-ietf-mail-archive/skey/
[DIR]  ftp://ftp.peak.org/pub/next-ftp/next/apps/unix/CLI/skey/
[DIR]  ftp://ftp.cz.netbsd.org/pub/NetBSD/misc/rhaen/reports/20071231.0851/security/skey/
[DIR]  ftp://ftp.ps.pl/dsk0/ftp.openbsd.org/src/usr.bin/skey/
[DIR]  ftp://ftp.ps.pl/dsk0/ftp.nordu.net/ietf/skey/
[DIR]  ftp://ftp.ps.pl/dsk0/ftp.nordu.net/ietf-online-proceedings/95apr/area.and.wg.reports/sec/skey/
[DIR]  ftp://ftp.pwsz.elblag.pl/mirror/irix/freeware.sgi.com/source/skey/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/packages/current-src/pkgsrc/security/skey/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-4-0/src/usr.bin/skey/