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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: 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: 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: ns2 des algorithm
Page Link: ns2 des algorithm -
Posted By:
Created at: Thursday 28th of February 2013 01:26:12 PM
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i need to implement IPSEC on Ad hoc networks as we knew ipsec is a suite protocol which consists ESP and AH header protocol so ESP is implemeted using DES or AES and also i need to simulate on ns2 how? ....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: 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: 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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Title: advantage dis advantage of electronic eye
Page Link: advantage dis advantage of electronic eye -
Posted By:
Created at: Saturday 22nd of August 2015 12:41:39 AM
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Title: program in c to implement s des algorithm
Page Link: program in c to implement s des algorithm -
Posted By:
Created at: Saturday 13th of April 2013 05:11:48 PM
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S-DES Algorithm:-
Encryption:- Encryption algorithm takes an 8-bit block of plaintext and 10-bit key as input and produce an 8-bit block of ciphertext as output.
1. Encryption algorithm involves five functions:
1) an initial permutation function (IP)
2) a complex function (fk) which involves both substitution and permutation
3) a simple permutation function (SW) that switches two halves of data
4) the function f again
5) a permutation function that is the inverse of the initial permutation(IP-1).
2. The function fk takes as i ....etc
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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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