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 ....etc

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what are the advantages and disadvantages of rsa algorithm? ....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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What are the advantages and disadvantages of rsa algorithm?
Next, i want to know about the application of rsa algorithm in daily life.tq ....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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HELLO.....
PLAESE HELP ME FOR MY PROJECT.
SEND ME THE COPY OF SYNOPSIS OF THE PROJECT ON ENCRYPTION DECRYPTION ....etc

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....etc

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Private-Key Cryptography
• traditional private/secret/single key cryptography uses one key
• Key is shared by both sender and receiver
• if the key is disclosed communications are compromised
• also known as symmetric, both parties are equal
• hence does not protect sender from receiver forging a message & claiming is sent by sender
Public-Key Cryptography
• probably most significant advance in the 3000 year history of cryptography
• uses two keys – a public key and a private key
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By carefully measuring the amount of time required to perform private key operations, attackers may be able to find fixed Diffie-Hellman exponents, factor RSA keys, and break other cryptosystems.Against a vulnerable system, the attack is computationally inexpensive and often requires only known ciphertext. Actual systems are potentially at risk, including cryptographic tokens, network-based cryptosystems, and other applications where attackers can make reasonably accurate timing measurements. Techniques for preventing the attack for RSA and Dif ....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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