RSA is the algorithm used by modern computers to encrypt and decrypt messages. It is an asymmetric cryptographic algorithm. Asymmetric means that there are two different keys. This is also called public key cryptography, because one of them can be given to everyone.RSA is the algorithm used by modern computers to encrypt and decrypt messages. It is an asymmetric cryptographic algorithm. Asymmetric means that there are two different keys. This is also called public key cryptography, because one of them can be given to everyone. The other key mus ....etc

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5 advantages and disadvantages of rsa algorithm

The primary advantage of public-key cryptography is increased security and convenience: private keys never need to be transmitted or revealed to anyone. In a secret-key system, by contrast, the secret keys must be transmitted (either manually or through a communication channel) since the same key is used for encryption and decryption. A serious concern is that there may be a chance that an enemy can discover the secret key during transmission.

Another major advantage of public-key systems is tha ....etc

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hello sir i need to get the source code for RSA for plain text and decryp the same in plain text

can i make use of RSA double encryption/decryption for the same? ....etc

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Vodacom Group Limited (Vodacom) is an African mobile communications company, providing voice, messaging, data and converged services to over 55 million customers. From its roots in South Africa, Vodacom has grown its operations to include networks in Tanzania, the Democratic Republic of Congo, Mozambique, and Lesotho and provides business services to customers in over 40 African countries such as Nigeria, Zambia, Angola, Kenya, Ghana, C te d'Ivoire, and Cameroon. It was owned on a 50:50 basis by the South African telecommunications group Telko ....etc

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package com.java.blowfish;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.c ....etc

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i want code for encryption and decryption of files using rsa algorithm in java..plz help me
[email protected] ....etc

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#include
#include
#include
void main()
{
double p,q,n,m,e,k,z,d1,c1,c2,y;
double d,l,x,c,d2;
clrscr();
printf(The P,Q Primary values:);
scanf(%lf%lf,&p,&q);
n=p*q;
printf(N value is %lf,n);
k=(p-1)*(q-1);
printf(\n K(n) value is:%lf,k);
printf(\n Enter the Integer which is relative to the prime to the K(n));
scanf(%lf,&e);
d2=pow(e,-1);
d=fmod(d2,k);
printf(%lf,&d);
printf(\n Enter the plain text number );
scanf(%lf,&m);
d1=pow(m,e);
c=fm ....etc

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can someone please help me with my final year project. i have to encrypt the linear programming problem and then solve the encrypted linear programming problem and after that i have to decrypt the result.
can someone tell me how to encrypt linear problem ....etc

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RSA

The RSA cryptosystem is a public-key cryptosystem that offers both encryption and digital signatures (authentication). Ronald Rivest, Adi Shamir, and Leonard Adleman developed the RSA system in 1977 .RSA stands for the first letter in each of its inventors' last names.

The RSA algorithm works as follows: take two large primes, p and q, and compute their product n = pq; n is called the modulus. Choose a number, e, less than n and relatively prime to (p-1)(q-1), which means e and (p-1)(q-1) have no common factors except 1. Find another numb ....etc

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By
SANGEETA PATEL
And
PARTHA PRITTAM NAYAK

ABSTRACT
Security can only be as strong as the weakest link. In this world of cryptography, it is now well established, that the weakest page link lies in the implementation of cryptographic algorithms. This project deals with RSA algorithm implementation with and without Chinese Remainder Theorem and also using Variable Radix number System. In practice, RSA public exponents are chosen to be small which makes encryption and signature verification reasonably fast. Private ....etc

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