A company wants to transmit data over the telephone, but it is concerned that its phones may be tapped. All of its data is transmitted as four-digit integers. It has asked you to write a program that will encrypt its data so that the data may be transmitted more securely. Your script should read a four digit integer entered by the user in a prompt dialog and encrypt it as follows: Replace each digit by (the sum of that digit plus 7) modulus 10. Then swap the first digit with the third, and swap the second digit with the fourth. Then output XHTML text that displays the encrypted integer.
What is a zed encoder? How does it work?
How to change the location of the Kryptel (Silver Key) program group?
What is meant by 1024, 2048, 5096 bit encryption?
whats cryptanalysis?
What is the difference between Kryptel and Silver Key?
What is secret-key cryptography ?
What is exhaustive key search ?
What information can be obtained from encrypted file?
How to I prevent other users from using Kryptel (Silver Key)?
What is key management ?
What is an algorithm?
How do certifying authorities store their private keys ?
What is are "proprietary" and "public" cryptographic algorithms?
How can we use quantum properties in cryptography ?
