How should I store my private key ?
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What is a zed encoder? How does it work?
What happens if a private key is compromised ?
What is probabilistic encryption?
Who needs a key pair ?
What are knapsack cryptosystems?
How to I prevent other users from using Kryptel (Silver Key)?
What is key management ?
What key size should be used ?
What are some other public key cryptosystems ?
What Is Encryption?
What are the advantages of public-key cryptography compared with secret-key cryptography?
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.