Could you please try following and let me know if this helps you. But Input_file should be same as shown sample Input_file(ditto exact) else it would provide different output too. EDIT: Adding a non-one liner form of above solution too now.
Thanks,
R. Singh
Last edited by RavinderSingh13; 09-28-2016 at 11:29 AM..
Reason: Adding a non-one liner form of above solution successfully too now.
This User Gave Thanks to RavinderSingh13 For This Post:
Hi there,
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I attached a README file that I will refer to.
I successfully completed everything in the README file until step 4.
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Discussion started by: Ophiuchus
3 Replies
LEARN ABOUT DEBIAN
crypt::des
DES(3pm) User Contributed Perl Documentation DES(3pm)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 v5.14.2 2005-12-08 DES(3pm)