1.Investigate Rijndael further and write a C program to implement the same. 2. Find out more about the vulnerabilities of DES from the Internet. 3. Write the RC4 logic in Java. 4. Try to implement the...

1.Investigate Rijndael further and write a C program to implement the same. 2. Find out more about the vulnerabilities of DES from the Internet. 3. Write the RC4 logic in Java.

4. Try to implement the logic of the various algorithm modes in a programming language of your choice. 5. Create a visual tool that should take as input some plain text and a key, and then execute an algorithm of the user’s choice (e.g. DES). It should provide a visual display of the output at each stage of the encryption process.