How Encoding is different from Encryption?
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What is the mceliece cryptosystem?
How do certifying authorities store their private keys ?
What happens if a private key is compromised ?
What is key management ?
What information can be obtained from encrypted file?
What is private key cryptography and how we compare it with public key cryptography?
why hash functions are not used for encryption but authentication ?
What is the elgamal cryptosystem?
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 can we use quantum properties in cryptography ?
What is the rabin signature scheme?
What are some other public key cryptosystems ?
Cryptography Algorithms 
