nmap is a network utility which gives u information about open ports on ur system. for eg
$ nmap 10.226.112.202
PORT STATE SERVICE
7/tcp open echo
13/tcp open daytime
22/tcp open ssh
23/tcp open telnet
37/tcp open time
1100/tcp open unknown
these open... (2 Replies)
Hi,
I have a process that creates a file on a HP-UX server (11.11) using the HP-UX Command crypt.
This gets transfred to a LINUX server (REHL 4u4 AP) where crypt is not installed.
I have been trying to use the standard supplied "gpg" utility to decrypt the file but no sucess!.
Any... (1 Reply)
Hello,
I'm not sure whether this thread is in the right subforum, if it isn't please excuse me.
So, here's my question - right now I'm trying to port a Solaris device driver for a custom piece of hardware to Linux (2.6.15), and I'm having some troubles finding the proper corresponding... (3 Replies)
DES(3) User Contributed Perl Documentation DES(3)NAME
Crypt::DES - Perl DES encryption module
SYNOPSIS
use Crypt::DES;
DESCRIPTION
The module implements the Crypt::CBC interface, which has the following methods
blocksize =item keysize =item encrypt =item decrypt
FUNCTIONS
blocksize
Returns the size (in bytes) of the block cipher.
keysize
Returns the size (in bytes) of the key. Optimal size is 8 bytes.
new
my $cipher = new Crypt::DES $key;
This creates a new Crypt::DES BlockCipher object, using $key, where $key is a key of "keysize()" bytes.
encrypt
my $cipher = new Crypt::DES $key;
my $ciphertext = $cipher->encrypt($plaintext);
This function encrypts $plaintext and returns the $ciphertext where $plaintext and $ciphertext should be of "blocksize()" bytes.
decrypt
my $cipher = new Crypt::DES $key;
my $plaintext = $cipher->decrypt($ciphertext);
This function decrypts $ciphertext and returns the $plaintext where $plaintext and $ciphertext should be of "blocksize()" bytes.
EXAMPLE
my $key = pack("H16", "0123456789ABCDEF");
my $cipher = new Crypt::DES $key;
my $ciphertext = $cipher->encrypt("plaintex"); # NB - 8 bytes
print unpack("H16", $ciphertext), "
";
NOTES
Do note that DES only uses 8 byte keys and only works on 8 byte data blocks. If you're intending to encrypt larger blocks or entire files,
please use Crypt::CBC in conjunction with this module. See the Crypt::CBC documentation for proper syntax and use.
Also note that the DES algorithm is, by today's standard, weak encryption. Crypt::Blowfish is highly recommended if you're interested in
using strong encryption and a faster algorithm.
SEE ALSO
Crypt::Blowfish Crypt::IDEA
Bruce Schneier, Applied Cryptography, 1995, Second Edition, published by John Wiley & Sons, Inc.
COPYRIGHT
The implementation of the DES algorithm was developed by, and is copyright of, Eric Young (eay@mincom.oz.au). Other parts of the perl
extension and module are copyright of Systemics Ltd ( http://www.systemics.com/ ). Cross-platform work and packaging for single algorithm
distribution is copyright of W3Works, LLC.
MAINTAINER
This single-algorithm package and cross-platform code is maintained by Dave Paris <amused@pobox.com>.
perl v5.12.1 2005-12-08 DES(3)
