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Title: Implementation of Des Algorithm
Page Link: Implementation of Des Algorithm -
Posted By: nit_cal
Created at: Friday 30th of October 2009 07:17:26 PM
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Abstract
To encrypt a text _le and to decrypt the encrypted form of the _le to get the original input text _le. This encryption and decryption is done using the most widely used private key encryption scheme based on data encryption standard (DES) adopted in 1977 by National Bureau of Standards.It was designed by IBM based on their own Luci_er cipher and input from NSA.For DES, data are encrypted in 64-bit blocks using a 56-bit key. The algorithm transforms 64-bit input in series of steps into a 64-bit output of cipher text. The same steps, w ....etc
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Title: des algorithm example ppt
Page Link: des algorithm example ppt -
Posted By:
Created at: Monday 08th of October 2012 01:45:39 AM
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Title: The DES Algorithm Illustrated
Page Link: The DES Algorithm Illustrated -
Posted By: seminar addict
Created at: Tuesday 24th of January 2012 02:59:16 PM
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The DES Algorithm Illustrated
Some Preliminary Examples of DES
DES works on bits, or binary numbers--the 0s and 1s common to digital computers. Each group of four bits makes up a hexadecimal, or base 16, number. Binary 0001 is equal to the hexadecimal number 1, binary 1000 is equal to the hexadecimal number 8, 1001 is equal to the hexadecimal number 9, 1010 is equal to the hexadecimal number A, and 1111 is equal to the hexadecimal number F.
How DE ....etc
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Title: Implement DES Algorithm
Page Link: Implement DES Algorithm -
Posted By: smart paper boy
Created at: Wednesday 10th of August 2011 02:13:30 PM
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Program for DES
#include
#include
void main()
{
int a,b,c,i,j,k,l,m,n,x1;
int p,q,r,s,d,y,e,z=0;
clrscr();
printf(\n Enter the plain Text number:\n);
scanf(%d,&n);
printf(\n Enter the key number \n);
scanf(%d,&k);
printf(\n Enter the bit stream \n);
for(i=0;i
{
scanf(%d,&a);
}
p=n\2;
x1=p-k;
for(i=0;i<=x1;i++)
{
c=0;
z++;
}
z=z-1;
printf(\n Enter the Key bit Stream\n);
fo ....etc
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Title: Data Encryption Standard DES
Page Link: Data Encryption Standard DES -
Posted By: seminar class
Created at: Tuesday 22nd of February 2011 02:17:43 PM
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Data Encryption Standard (DES)
• Financial companies found the need for a cryptographic algorithm that would have the blessing of the US government (=NSA)
• First call for candidates in May 73, followed by a new call in August 74
• Not very many submissions (Why?)
– IBM submitted Lucifer
• NSA worked with IBM in redesigning the algorithm
DES
• DES became a federal standard in November 76
– NBS (NIST) hardware standard in January 77
– ANSI X3.92-1981 (hardware + software)
– ANSI X3.106 ....etc
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Title: c code to implement des algorithm
Page Link: c code to implement des algorithm -
Posted By: pradips
Created at: Wednesday 10th of August 2011 03:33:54 PM
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Title: des algorithm encryption for hello example demo
Page Link: des algorithm encryption for hello example demo -
Posted By:
Created at: Monday 13th of April 2015 04:27:42 PM
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Title: matlab code for image encryption using s des and chaotic map
Page Link: matlab code for image encryption using s des and chaotic map -
Posted By:
Created at: Tuesday 09th of October 2012 04:42:18 PM
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i m doing dissertation in cryptography based digital image watermarking for gray scale image...so i need matlab source code for encryption and decryption for gray scale image ....etc
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Title: advantages and disadvantages of des algorithm
Page Link: advantages and disadvantages of des algorithm -
Posted By:
Created at: Sunday 30th of December 2012 01:48:48 PM
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Title: write c program to implement des algorithm logic
Page Link: write c program to implement des algorithm logic -
Posted By:
Created at: Monday 08th of October 2012 01:05:37 PM
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