What is the Popular Symmetric-Key Encryption Method
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whats cryptanalysis?
Is there a limit on the file size or on the number of encrypted files?
How to change the encrypted file icon?
What is Ciphertext?
What is exhaustive key search ?
Can the computer which has been used for encryption be traced?
How does one find random numbers for keys ?
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.
Blowfish uses the longest key. Does this mean it is the strongest cipher?
What is cryptology?
What is private key cryptography and how we compare it with public key cryptography?
What is key management ?