What are the counter and pcbc modes?
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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.
How to I prevent other users from using Kryptel (Silver Key)?
What is multiple encryption?
Hello. In Snort, how a digital signature is actually created for the authentication purpose and thereby provides intrusion detection as well as prevention. How the software for IDS/IPS comes to know regarding the threat/vulnerability using digital signature ? Whether any specific language or programming is used or not.
What happens if a private key is compromised ?
what are some of the current encryption schemes?
How does one find random numbers for keys ?
What is secret-key cryptography ?
How can we use quantum properties in cryptography ?
What is private key cryptography and how we compare it with public key cryptography?
What are "stream" and "block" ciphers?
How Can I Find the XP Lost Password?