What are the ecb and cbc modes?
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How to change the location of the Kryptel (Silver Key) program group?
Do encrypted files contain password in some form?
what are some of the current encryption schemes?
What if a certifying authority?s key is lost or compromised ?
How should I store my private key ?
What is exhaustive key search ?
How to I prevent other users from using Kryptel (Silver Key)?
What is public-key cryptography ?
What are the counter and pcbc modes?
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 are "stream" and "block" ciphers?
What Is Encryption?