Actual role of cryptography is data security .Explain with
real world example?
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How to change the location of the Kryptel (Silver Key) program group?
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 is are "proprietary" and "public" cryptographic algorithms?
What Is Encryption?
Is there a limit on the file size or on the number of encrypted files?
what are some of the current encryption schemes?
Actual role of cryptography is data security .Explain with real world example?
What are "stream" and "block" ciphers?
What is decryption?
What is an algorithm?
How to remove the Kryptel (Silver Key) icon from the desktop?
What are some other public key cryptosystems ?
Cryptography Algorithms 
