root@bt:~# gpg --gen-key
gpg (GnuPG) 1.4.10; Copyright (C) 2008 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

gpg: directory `/root/.gnupg' created
gpg: new configuration file `/root/.gnupg/gpg.conf' created
gpg: WARNING: options in `/root/.gnupg/gpg.conf' are not yet active during this run
gpg: keyring `/root/.gnupg/secring.gpg' created
gpg: keyring `/root/.gnupg/pubring.gpg' created
Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)
Your selection?
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048)
Requested keysize is 2048 bits
Please specify how long the key should be valid.
         0 = key does not expire
      <n>  = key expires in n days
      <n>w = key expires in n weeks
      <n>m = key expires in n months
      <n>y = key expires in n years
Key is valid for? (0)
Key does not expire at all
Is this correct? (y/N) y

You need a user ID to identify your key; the software constructs the user ID
from the Real Name, Comment and Email Address in this form:
    "Heinrich Heine (Der Dichter) <heinrichh@duesseldorf.de>"

Real name: [redacted]
Email address: [redacted]
Comment: lab2 rsa public rsa private key pair
You selected this USER-ID:
    "[redacted] (lab2 rsa public rsa private key pair) <[redacted]>"

Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? o
You need a Passphrase to protect your secret key.

We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
......+++++
..+++++
We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
+++++
+++++
gpg: /root/.gnupg/trustdb.gpg: trustdb created
gpg: key 587AC911 marked as ultimately trusted
public and secret key created and signed.

gpg: checking the trustdb
gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
gpg: depth: 0  valid:   1  signed:   0  trust: 0-, 0q, 0n, 0m, 0f, 1u
pub   2048R/587AC911 2013-02-17
      Key fingerprint = 7D69 E048 3644 8362 5D65  E13A 32C8 56D3 587A C911
uid                  [redacted] (lab2 rsa public rsa private key pair) <[redacted]>
sub   2048R/95C6DE52 2013-02-17

root@bt:~# gpg --export -a "[redacted]" > public.key
root@bt:~# ls
Desktop  public.key
root@bt:~# mkdir lab2
root@bt:~# mv public.key lab2/
root@bt:~# ls
Desktop  lab2
root@bt:~# cd lab2/
root@bt:~/lab2# ls
public.key
root@bt:~/lab2# cat public.key
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.10 (GNU/Linux)
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=DvRd
-----END PGP PUBLIC KEY BLOCK-----
root@bt:~/lab2# ls
cmpsc443public.key  public.key
root@bt:~/lab2# gpg --import cmpsc443public.key
gpg: key 8D32F9E8: public key "Yingjia li <yxl248@psu.edu>" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
root@bt:~/lab2# gpg --list-keys
/root/.gnupg/pubring.gpg
------------------------
pub   2048R/587AC911 2013-02-17
uid                  [redacted] (lab2 rsa public rsa private key pair) <[redacted]>
sub   2048R/95C6DE52 2013-02-17

pub   2048R/8D32F9E8 2013-02-12 [expires: 2017-02-12]
uid                  Yingjia li <yxl248@psu.edu>
sub   2048R/6719BB26 2013-02-12 [expires: 2017-02-12]

root@bt:~/lab2# openssl enc -aes-256-cbc -md sha1 -P -out aes.key
enter aes-256-cbc encryption password:
Verifying - enter aes-256-cbc encryption password:
salt=3021541B784EBEF4
key=794650D4ACA03A2D0014BFC44B33CDD73245AEE8B3FAF94EE6273F9DC6BAD678
iv =ACD1ECF7F2626C47124D2C09DCF6F337
root@bt:~/lab2# ls
aes.key  cmpsc443public.key  public.key
root@bt:~/lab2# cat aes.key
root@bt:~/lab2# openssl enc -aes-256-cbc -md sha1 -P > aes.key
enter aes-256-cbc encryption password:
Verifying - enter aes-256-cbc encryption password:
root@bt:~/lab2# cat aes.key
salt=631300EEAC590887
key=AC5902A9B2128F3F5159F5B1EB3B08D50099C15ED412B002E7F49A6CA5470714
iv =9FD782FBAEA58F818AA74F9D8038571C
root@bt:~/lab2# echo "[redacted]" > lab2.txt
root@bt:~/lab2# uname -a >> lab2.txt
root@bt:~/lab2# cat lab2.txt
[redacted]
Linux bt 3.2.6 #1 SMP Fri Feb 17 10:34:20 EST 2012 x86_64 GNU/Linux
root@bt:~/lab2# ls
aes.key  cmpsc443public.key  lab2.txt  public.key

root@bt:~/lab2# openssl enc -kfile aes.key -base64 -in lab2.txt > lab2_encr.txt
root@bt:~/lab2# ls
aes.key  cmpsc443public.key  lab2_encr.txt  lab2.txt  public.key
root@bt:~/lab2# cat lab2_encr.txt
RGFuIFNtaXRoCkxpbnV4IGJ0IDMuMi42ICMxIFNNUCBGcmkgRmViIDE3IDEwOjM0
OjIwIEVTVCAyMDEyIHg4Nl82NCBHTlUvTGludXgK
root@bt:~/lab2# gpg --encrypt --recipient "Yingjia li" -a o aes.key.asc aes.key
usage: gpg [options] --encrypt [filename]
root@bt:~/lab2# gpg --encrypt --recipient "Yingjia li" -a -o aes.key.asc aes.key
gpg: 6719BB26: There is no assurance this key belongs to the named user

pub  2048R/6719BB26 2013-02-12 Yingjia li <yxl248@psu.edu>
 Primary key fingerprint: 1B9E B980 ABE5 E8E6 C26C  9788 5F85 9687 8D32 F9E8
      Subkey fingerprint: C2FA DB41 0DB0 0E58 A489  9D5B 8107 429C 6719 BB26

It is NOT certain that the key belongs to the person named
in the user ID.  If you *really* know what you are doing,
you may answer the next question with yes.

Use this key anyway? (y/N) y
root@bt:~/lab2# ls
aes.key  aes.key.asc  cmpsc443public.key  lab2_encr.txt  lab2.txt  public.key
root@bt:~/lab2# cat aes.key.asc
-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.10 (GNU/Linux)
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=qwVg
-----END PGP MESSAGE-----

root@bt:~/lab2# gpg --sign -o key_signed.txt -a aes.key.asc

You need a passphrase to unlock the secret key for
user: "[redacted] (lab2 rsa public rsa private key pair) <[redacted]>"
2048-bit RSA key, ID 587AC911, created 2013-02-17

gpg: gpg-agent is not available in this session
root@bt:~/lab2# ls
aes.key  aes.key.asc  cmpsc443public.key  key_signed.txt  lab2_encr.txt  lab2.txt  public.key  steps1to10
root@bt:~/lab2# cat key_signed.txt
-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.10 (GNU/Linux)

owFl0l2I2wQAwPFe9+Vy3Hanc2woszsO3cy8Num37IZpkyZpk7Rp2iatTEibz/ba
pvlo0p4OPEFxgpuCHPOEMbhDkfPpThHFKQhyE5FxB3ObIuhAwSETwcncPcgGPvl/
/D//zo5t8/lH4PXKpjC8NDHygX+zPirK1nRLHkyLVoM9PD7x1L1SGE4ygQJeCNAY
xyE4dv8CFdm09G7n6QDecQp4oA9NR6ahUOAIzpSDlN5xvKMAoLEYjUQwgjW8Dl63
2girgLSjiyasQSEQUnSGBHNEYqBKBJ5xgyittmIxMdEX23aCK5YloNVqZgwiVnXp
nleudpOFrKOS4VmIAbNxvu+CTFQcGGXHLcj1aDHJtsR62KONBKVGzY6DWgYwSFCR
uqJ4kmIQ5CxPihZkcbJcEKJIsiLhrWK3LIAVZ5bvcnCiojIFOS/YkZQDd6l0xaiF
AJPCa5moZTWUVh9EaDetxtksbVJOJIFDZFvkbQKuZodSpFHKMPVKFgqlzSZKpXXZ
hijdsoEUVBOdODzMDVuxZqqDgVXdrYZ4zgkyTtMjI/WiiQsuR9swGs6jVC1YcglW
iIN2123CBaoKDHGP08iYgqkVXO0FkyBaqeFVsdELSyZLx3FKJfJ2wyCwZK6PyIZc
6pNefRaV0STSaAvlPpAv6kok35cLhBbSLTyL5aSEW7ZKDlwqixk8Ey+FwJzsdvRY
z2W6GI9ZEgGl9W4KroXUeNYBOnqeSGQHHDvweIblgskcj1JlIYkh6aHhSEKe0ayB
Ggl3zKGRSGl9WshRIS9sRxOOqeUlDUhKStNCLC3DGgOpQbZcNzhsm66d4mu2WeUb
sbYiK4UQBUVdEu1JmIDnpbAdVqP5ZtGtZcKAKkV4LRuuVsoUJzAQnCNls+jOzAAz
PbeiAvdFYgz6f6Wvjjy63Tfi9+3c4b8H2gfsHv9PPLZ3192drXNfn159e+fa+cdO
oSs/TI59863/l5W1z5bPPOfLH/yyCh64sfsvjZDetc+uDVen9p67dmHsqruAXXy/
5d9YKl7fton8+NF+y395Abk7svLV+WOfcovro0tHkat7tr7nrh8XPpw7+Ru0n89d
GEy99dON5uLnD792wtq6CF+7/Ypve+DI7BP2k7fihQcu828i1M2lE3Ppv/Hl9V2/
v+A486t3rpxS3qBPxzKPHN/x5+O+Q/b8sfk2v3HTe+ZSe9+tZw+vPr+nKLz8xZVD
L0rguL61oB+gJhdHT05MDt+5/c/PzYD2qzX+EsPpZ6b8370+t5x+sM7MPPTenU82
Ph4N7ftj/OBCBP0X
=ZfM8
-----END PGP MESSAGE-----