This document describes Cryptkit, a Java-based cryptographic system that implements encryption algorithms like TDES, RSA, RABIN, and PC-1 to enhance network security. It uses both symmetric and asymmetric encryption and supports any operating system. The purpose is to provide real-time encryption over networks using robust standard algorithms. Future enhancements may include mobile messaging security and additional multimedia encryption capabilities.

1. Cryptkit
1

2. College Name
2

3. HOD Name
3

4. Students Name
4

5. CRYPTKIT
using
JAVA
5

6. Abstract
The purpose of Cryptkit is to
implement a real time cryptographic
system to enhance security over
networks.
6

7. Abstract
It uses various cryptographic techniques such
as,
TDES
RSA
RABIN
PC-1
7

8. Abstract
This is an endeavor to implement a real time
cryptographic system to enhance security
over the networks. There are about various
encrypting techniques available for secure
transmission of data. But, we use here the
standard algorithms namely RSA, RABIN,
TDES and PC-1 working on text messages.
8

9. The transmission of data can be made through
conventional modems through the telephone lines
or via the internet which may be performed using
various socket programs.
We have used both symmetric and asymmetric
encryption algorithms so as to provide a large
coverage for the user. The algorithms used were
selected by keeping in mind their effectiveness and
efficiency. This project was built on JavaTM and can
be used in any operating system
9

10. System Configuration
Software Requirements:
Operating System : Any OS.
Language : JAVATM .
Java Version : JDK1.2 and higher.
10

11. System Configuration
Hardware Requirements:
Processor : Pentium II
Hard disk : 4GB
RAM : 128MB
11

12. TDES(Triple Data Encryption Standards)
TDES is a block cipher.
It is a symmetric key algorithm.
It uses 3x16 rounds for encryption.
It is tedious to break the cipher text,since it has
2168 possibilities.
It uses the same key for both encryption and
decryption.
It is mainly used in Defense Security.
12

13. RSA Algorithm
RSA is a block cipher.
It is an Asymmetric algorithm,since it uses
different keys for encryption and decryption.
It uses two large prime numbers to generate the
public key and private key.
It is widely used in network security systems.
13

14. RABIN
This is a Block Cipher Algorithm.
It is an Asymmetric Algorithm, since it uses
different keys for encryption and decryption.
The Security lies on the difficulty of finding
square roots modulo of a composite number.
It is widely used in ATM and Credit Card
security systems.
14

15. PC-1
It is a Stream Cipher and works on retroaction
function.
It is a Symmetric Algorithm.
It uses an 128 bit key and operates on 8 bit
message blocks.
It is mainly used in credit card security, military
radio’s and satellites. E.g. to encrypt the launch
code of thermonuclear missiles.
15

16. Advantages
The algorithms used in this project are the most
difficult to break.
Since our project is built in JAVA, It can run on
any Operating System.
It has a good look and feel.
It is simple and User Friendly.
16

17. Current Trends
The RSA-DES challenge was conducted in order
to develop more efficient and stronger
cryptographic algorithms.
The Finalists of the competition were
MARS,AES and TDES.
Out of these algorithms AES is widely used in
US military communications and TDES is used
in all other countries.
17

18. Future Enhancements
• We are trying to implement our project in J2ME
so that a secure communication can be
established even when using mobile phones, that
is, while messaging using mobiles.
• We are trying to add some more algorithms to
our project, that can provide voice and image
encryption too.
18

19. Screen shot
19