GPG exchange and registration keys

laysner>> gpg --import [key filename]
gpg (GnuPG) 0.9.4; Copyright (C) 1999 Free Software Foundation, Inc.
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions. See the file COPYING for details.

gpg: Warning: using insecure memory!
gpg:/tmp/1: key E645A1E5: public key imported
gpg: Total number processed: 1
gpg:               imported: 1

laysner>> gpg --list-keys
gpg (GnuPG) 0.9.4; Copyright (C) 1999 Free Software Foundation, Inc.
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions. See the file COPYING for details.

gpg: Warning: using insecure memory!
/home/seirios/.gnupg/pubring.gpg
--------------------------------
pub  1024D/487275B0 1999-03-18 HEO SeonMeyong 
uid                            HEO SeonMeyong 
sub  1024g/1A8F3D53 1999-03-18

pub  1024D/E645A1E5 1999-03-12 Test Account 
uid                            Test Account 
sub  1024g/E81F0879 1999-03-12

laysner>> gpg --fingerprint test
gpg (GnuPG) 0.9.4; Copyright (C) 1999 Free Software Foundation, Inc.
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions. See the file COPYING for details.

gpg: Warning: using insecure memory!
pub  1024D/E645A1E5 1999-03-12 Test Account 
     Key fingerprint = 0A12 8547 2ED9 CDCB 995D  9284 6A44 97E4 E645 A1E5
uid                            Test Account 
sub  1024g/E81F0879 1999-03-12
laysner>>