1.Write a Java program that contains functions, which accept a key and input text to be encrypted/ decrypted. This program should use the key to encrypt/decrypt the input by using the triple DES...

1.Write a Java program that contains functions, which accept a key and input text to be encrypted/ decrypted. This program should use the key to encrypt/decrypt the input by using the triple DES algorithm. Make use of Java cryptography package. 2. Write a C program to implement the Blowfish algorithm. 3. Write the same program in Visual Basic.